move the library into libvncserver/, x11vnc into x11vnc/

37 files changed, 12775 insertions, 0 deletions

diff --git a/libvncserver/Makefile.am b/libvncserver/Makefile.am
new file mode 100644
index 0000000..0a14983
--- /dev/null
+++ b/libvncserver/Makefile.am
@@ -0,0 +1,42 @@
+CFLAGS=-g -Wall
+
+includedir=$(prefix)/include/rfb
+#include_HEADERS=rfb.h rfbconfig.h rfbint.h rfbproto.h keysym.h rfbregion.h
+
+include_HEADERS=../rfb/rfb.h ../rfb/rfbconfig.h ../rfb/rfbint.h \
+	../rfb/rfbproto.h ../rfb/keysym.h ../rfb/rfbregion.h ../rfb/rfbclient.h
+
+noinst_HEADERS=d3des.h ../rfb/default8x16.h zrleoutstream.h \
+	zrlepalettehelper.h zrletypes.h
+
+EXTRA_DIST=tableinit24.c tableinittctemplate.c tabletranstemplate.c \
+	tableinitcmtemplate.c tabletrans24template.c \
+	zrleencodetemplate.c
+
+if HAVE_LIBZ
+ZLIBSRCS = zlib.c zrle.c zrleoutstream.c zrlepalettehelper.c
+if HAVE_LIBJPEG
+JPEGSRCS = tight.c
+endif
+endif
+
+LIB_SRCS = main.c rfbserver.c rfbregion.c auth.c sockets.c \
+	stats.c corre.c hextile.c rre.c translate.c cutpaste.c \
+	httpd.c cursor.c font.c \
+	draw.c selbox.c d3des.c vncauth.c cargs.c \
+	$(ZLIBSRCS) $(JPEGSRCS)
+
+libvncserver_a_SOURCES=$(LIB_SRCS)
+
+lib_LIBRARIES=libvncserver.a
+
+if HAVE_RPM
+$(PACKAGE)-$(VERSION).tar.gz: dist
+
+# Rule to build RPM distribution package
+rpm: $(PACKAGE)-$(VERSION).tar.gz libvncserver.spec
+	cp $(PACKAGE)-$(VERSION).tar.gz @RPMSOURCEDIR@
+	rpm -ba libvncserver.spec
+endif
+
+
diff --git a/libvncserver/auth.c b/libvncserver/auth.c
new file mode 100755
index 0000000..ec253dd
--- /dev/null
+++ b/libvncserver/auth.c
@@ -0,0 +1,104 @@
+/*
+ * auth.c - deal with authentication.
+ *
+ * This file implements the VNC authentication protocol when setting up an RFB
+ * connection.
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+/*
+ * rfbAuthNewClient is called when we reach the point of authenticating
+ * a new client.  If authentication isn't being used then we simply send
+ * rfbNoAuth.  Otherwise we send rfbVncAuth plus the challenge.
+ */
+
+void
+rfbAuthNewClient(cl)
+    rfbClientPtr cl;
+{
+    char buf[4 + CHALLENGESIZE];
+    int len;
+
+    cl->state = RFB_AUTHENTICATION;
+
+    if (cl->screen->rfbAuthPasswdData && !cl->reverseConnection) {
+        *(uint32_t *)buf = Swap32IfLE(rfbVncAuth);
+        vncRandomBytes(cl->authChallenge);
+        memcpy(&buf[4], (char *)cl->authChallenge, CHALLENGESIZE);
+        len = 4 + CHALLENGESIZE;
+    } else {
+        *(uint32_t *)buf = Swap32IfLE(rfbNoAuth);
+        len = 4;
+        cl->state = RFB_INITIALISATION;
+    }
+
+    if (WriteExact(cl, buf, len) < 0) {
+        rfbLogPerror("rfbAuthNewClient: write");
+        rfbCloseClient(cl);
+        return;
+    }
+}
+
+
+/*
+ * rfbAuthProcessClientMessage is called when the client sends its
+ * authentication response.
+ */
+
+void
+rfbAuthProcessClientMessage(cl)
+    rfbClientPtr cl;
+{
+    int n;
+    uint8_t response[CHALLENGESIZE];
+    uint32_t authResult;
+
+    if ((n = ReadExact(cl, (char *)response, CHALLENGESIZE)) <= 0) {
+        if (n != 0)
+            rfbLogPerror("rfbAuthProcessClientMessage: read");
+        rfbCloseClient(cl);
+        return;
+    }
+
+    if(!cl->screen->passwordCheck(cl,(const char*)response,CHALLENGESIZE)) {
+        rfbErr("rfbAuthProcessClientMessage: password check failed\n");
+        authResult = Swap32IfLE(rfbVncAuthFailed);
+        if (WriteExact(cl, (char *)&authResult, 4) < 0) {
+            rfbLogPerror("rfbAuthProcessClientMessage: write");
+        }
+        rfbCloseClient(cl);
+        return;
+    }
+
+    authResult = Swap32IfLE(rfbVncAuthOK);
+
+    if (WriteExact(cl, (char *)&authResult, 4) < 0) {
+        rfbLogPerror("rfbAuthProcessClientMessage: write");
+        rfbCloseClient(cl);
+        return;
+    }
+
+    cl->state = RFB_INITIALISATION;
+}
diff --git a/libvncserver/cargs.c b/libvncserver/cargs.c
new file mode 100644
index 0000000..c26050e
--- /dev/null
+++ b/libvncserver/cargs.c
@@ -0,0 +1,169 @@
+/*
+ *  This parses the command line arguments. It was seperated from main.c by 
+ *  Justin Dearing <jdeari01@longisland.poly.edu>.
+ */
+
+/*
+ *  LibVNCServer (C) 2001 Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
+ *  Original OSXvnc (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  see GPL (latest version) for full details
+ */
+
+#include <rfb/rfb.h>
+
+void
+rfbUsage(void)
+{
+    fprintf(stderr, "-rfbport port          TCP port for RFB protocol\n");
+    fprintf(stderr, "-rfbwait time          max time in ms to wait for RFB client\n");
+    fprintf(stderr, "-rfbauth passwd-file   use authentication on RFB protocol\n"
+                    "                       (use 'storepasswd' to create a password file)\n");
+    fprintf(stderr, "-passwd plain-password use authentication \n"
+                    "                       (use plain-password as password, USE AT YOUR RISK)\n");
+    fprintf(stderr, "-deferupdate time      time in ms to defer updates "
+                                                             "(default 40)\n");
+    fprintf(stderr, "-desktop name          VNC desktop name (default \"LibVNCServer\")\n");
+    fprintf(stderr, "-alwaysshared          always treat new clients as shared\n");
+    fprintf(stderr, "-nevershared           never treat new clients as shared\n");
+    fprintf(stderr, "-dontdisconnect        don't disconnect existing clients when a "
+                                                             "new non-shared\n"
+                    "                       connection comes in (refuse new connection "
+                                                                "instead)\n");
+    fprintf(stderr, "-httpdir dir-path      enable http server using dir-path home\n");
+    fprintf(stderr, "-httpport portnum      use portnum for http connection\n");
+    fprintf(stderr, "-enablehttpproxy       enable http proxy support\n");
+    fprintf(stderr, "-progressive height    enable progressive updating for slow links\n");
+}
+
+/* purges COUNT arguments from ARGV at POSITION and decrements ARGC.
+   POSITION points to the first non purged argument afterwards. */
+void rfbPurgeArguments(int* argc,int* position,int count,char *argv[])
+{
+  int amount=(*argc)-(*position)-count;
+  if(amount)
+    memmove(argv+(*position),argv+(*position)+count,sizeof(char*)*amount);
+  (*argc)-=count;
+}
+
+rfbBool 
+rfbProcessArguments(rfbScreenInfoPtr rfbScreen,int* argc, char *argv[])
+{
+    int i,i1;
+
+    if(!argc) return TRUE;
+    
+    for (i = i1 = 1; i < *argc;) {
+        if (strcmp(argv[i], "-help") == 0) {
+	    rfbUsage();
+	    return FALSE;
+	} else if (strcmp(argv[i], "-rfbport") == 0) { /* -rfbport port */
+            if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+	    rfbScreen->rfbPort = atoi(argv[++i]);
+        } else if (strcmp(argv[i], "-rfbwait") == 0) {  /* -rfbwait ms */
+            if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+	    rfbScreen->rfbMaxClientWait = atoi(argv[++i]);
+        } else if (strcmp(argv[i], "-rfbauth") == 0) {  /* -rfbauth passwd-file */
+            if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+            rfbScreen->rfbAuthPasswdData = argv[++i];
+	} else if (strcmp(argv[i], "-passwd") == 0) {  /* -passwd password */
+	    char **passwds = malloc(sizeof(char**)*2);
+	    if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+	    passwds[0] = argv[++i];
+	    passwds[1] = 0;
+	    rfbScreen->rfbAuthPasswdData = (void*)passwds;
+	    rfbScreen->passwordCheck = rfbCheckPasswordByList;
+        } else if (strcmp(argv[i], "-deferupdate") == 0) {  /* -deferupdate milliseconds */
+            if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+            rfbScreen->rfbDeferUpdateTime = atoi(argv[++i]);
+        } else if (strcmp(argv[i], "-desktop") == 0) {  /* -desktop desktop-name */
+            if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+            rfbScreen->desktopName = argv[++i];
+        } else if (strcmp(argv[i], "-alwaysshared") == 0) {
+	    rfbScreen->rfbAlwaysShared = TRUE;
+        } else if (strcmp(argv[i], "-nevershared") == 0) {
+            rfbScreen->rfbNeverShared = TRUE;
+        } else if (strcmp(argv[i], "-dontdisconnect") == 0) {
+            rfbScreen->rfbDontDisconnect = TRUE;
+        } else if (strcmp(argv[i], "-httpdir") == 0) {  /* -httpdir directory-path */
+            if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+            rfbScreen->httpDir = argv[++i];
+        } else if (strcmp(argv[i], "-httpport") == 0) {  /* -httpport portnum */
+            if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+            rfbScreen->httpPort = atoi(argv[++i]);
+        } else if (strcmp(argv[i], "-enablehttpproxy") == 0) {
+            rfbScreen->httpEnableProxyConnect = TRUE;
+        } else if (strcmp(argv[i], "-progressive") == 0) {  /* -httpport portnum */
+            if (i + 1 >= *argc) {
+		rfbUsage();
+		return FALSE;
+	    }
+            rfbScreen->progressiveSliceHeight = atoi(argv[++i]);
+        } else {
+	    i++;
+	    i1=i;
+	    continue;
+	}
+	/* we just remove the processed arguments from the list */
+	rfbPurgeArguments(argc,&i1,i-i1+1,argv);
+	i=i1;
+    }
+    return TRUE;
+}
+
+void rfbSizeUsage()
+{
+    fprintf(stderr, "-width                 sets the width of the framebuffer\n");
+    fprintf(stderr, "-height                sets the height of the framebuffer\n");
+}
+
+rfbBool 
+rfbProcessSizeArguments(int* width,int* height,int* bpp,int* argc, char *argv[])
+{
+    int i,i1;
+
+    if(!argc) return TRUE;
+    for (i = i1 = 1; i < *argc-1;) {
+        if (strcmp(argv[i], "-bpp") == 0) {
+               *bpp = atoi(argv[++i]);
+        } else if (strcmp(argv[i], "-width") == 0) {
+               *width = atoi(argv[++i]);
+        } else if (strcmp(argv[i], "-height") == 0) {
+               *height = atoi(argv[++i]);
+        } else {
+	    i++;
+	    i1=i;
+	    continue;
+	}
+	rfbPurgeArguments(argc,&i1,i-i1,argv);
+	i=i1;
+    }
+    return TRUE;
+}
+
diff --git a/libvncserver/config.h b/libvncserver/config.h
new file mode 100644
index 0000000..4daa20c
--- /dev/null
+++ b/libvncserver/config.h
@@ -0,0 +1,240 @@
+/* config.h.  Generated by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Enable 24 bit per pixel in native framebuffer */
+#define ALLOW24BPP 1
+
+/* Enable BackChannel communication */
+#define BACKCHANNEL 1
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
+/* #undef HAVE_DOPRNT */
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the `fork' function. */
+#define HAVE_FORK 1
+
+/* Define to 1 if you have the `ftime' function. */
+#define HAVE_FTIME 1
+
+/* Define to 1 if you have the `gethostbyname' function. */
+#define HAVE_GETHOSTBYNAME 1
+
+/* Define to 1 if you have the `gethostname' function. */
+#define HAVE_GETHOSTNAME 1
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#define HAVE_GETTIMEOFDAY 1
+
+/* Define to 1 if you have the `inet_ntoa' function. */
+#define HAVE_INET_NTOA 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `cygipc' library (-lcygipc). */
+/* #undef HAVE_LIBCYGIPC */
+
+/* Define to 1 if you have the `jpeg' library (-ljpeg). */
+#define HAVE_LIBJPEG 1
+
+/* Define to 1 if you have the `nsl' library (-lnsl). */
+#define HAVE_LIBNSL 1
+
+/* Define to 1 if you have the `pthread' library (-lpthread). */
+#define HAVE_LIBPTHREAD 1
+
+/* Define to 1 if you have the `socket' library (-lsocket). */
+/* #undef HAVE_LIBSOCKET */
+
+/* Define to 1 if you have the `z' library (-lz). */
+#define HAVE_LIBZ 1
+
+/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
+   to 0 otherwise. */
+#define HAVE_MALLOC 1
+
+/* Define to 1 if you have the `memmove' function. */
+#define HAVE_MEMMOVE 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `memset' function. */
+#define HAVE_MEMSET 1
+
+/* Define to 1 if you have the `mkfifo' function. */
+#define HAVE_MKFIFO 1
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#define HAVE_NETDB_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the `select' function. */
+#define HAVE_SELECT 1
+
+/* Define to 1 if you have the `setsid' function. */
+#define HAVE_SETSID 1
+
+/* Define to 1 if you have the `socket' function. */
+#define HAVE_SOCKET 1
+
+/* Define to 1 if `stat' has the bug that it succeeds when given the
+   zero-length file name argument. */
+/* #undef HAVE_STAT_EMPTY_STRING_BUG */
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the `strchr' function. */
+#define HAVE_STRCHR 1
+
+/* Define to 1 if you have the `strcspn' function. */
+#define HAVE_STRCSPN 1
+
+/* Define to 1 if you have the `strdup' function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the `strerror' function. */
+#define HAVE_STRERROR 1
+
+/* Define to 1 if you have the `strftime' function. */
+#define HAVE_STRFTIME 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the `strstr' function. */
+#define HAVE_STRSTR 1
+
+/* Define to 1 if you have the <syslog.h> header file. */
+#define HAVE_SYSLOG_H 1
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/timeb.h> header file. */
+#define HAVE_SYS_TIMEB_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
+#define HAVE_SYS_WAIT_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the `vfork' function. */
+#define HAVE_VFORK 1
+
+/* Define to 1 if you have the <vfork.h> header file. */
+/* #undef HAVE_VFORK_H */
+
+/* Define to 1 if you have the `vprintf' function. */
+#define HAVE_VPRINTF 1
+
+/* Define to 1 if `fork' works. */
+#define HAVE_WORKING_FORK 1
+
+/* Define to 1 if `vfork' works. */
+#define HAVE_WORKING_VFORK 1
+
+/* XKEYBOARD extension build environment present */
+#define HAVE_XKEYBOARD 1
+
+/* Define to 1 if `lstat' dereferences a symlink specified with a trailing
+   slash. */
+#define LSTAT_FOLLOWS_SLASHED_SYMLINK 1
+
+/* Name of package */
+#define PACKAGE "LibVNCServer"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "http://sourceforge.net/projects/libvncserver"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "LibVNCServer"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "LibVNCServer 0.7pre"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "libvncserver"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "0.7pre"
+
+/* The number of bytes in type char */
+/* #undef SIZEOF_CHAR */
+
+/* The number of bytes in type int */
+/* #undef SIZEOF_INT */
+
+/* The number of bytes in type long */
+/* #undef SIZEOF_LONG */
+
+/* The number of bytes in type short */
+/* #undef SIZEOF_SHORT */
+
+/* The number of bytes in type void* */
+/* #undef SIZEOF_VOIDP */
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Version number of package */
+#define VERSION "0.7pre"
+
+/* Define to 1 if your processor stores words with the most significant byte
+   first (like Motorola and SPARC, unlike Intel and VAX). */
+/* #undef WORDS_BIGENDIAN */
+
+/* Define to 1 if the X Window System is missing or not being used. */
+/* #undef X_DISPLAY_MISSING */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to rpl_malloc if the replacement function should be used. */
+/* #undef malloc */
+
+/* Define to `int' if <sys/types.h> does not define. */
+/* #undef pid_t */
+
+/* Define to `unsigned' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* The type for socklen */
+/* #undef socklen_t */
+
+/* Define as `fork' if `vfork' does not work. */
+/* #undef vfork */
diff --git a/libvncserver/corre.c b/libvncserver/corre.c
new file mode 100755
index 0000000..3f123b0
--- /dev/null
+++ b/libvncserver/corre.c
@@ -0,0 +1,352 @@
+/*
+ * corre.c
+ *
+ * Routines to implement Compact Rise-and-Run-length Encoding (CoRRE).  This
+ * code is based on krw's original javatel rfbserver.
+ */
+
+/*
+ *  Copyright (C) 2002 RealVNC Ltd.
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+/*
+ * rreBeforeBuf contains pixel data in the client's format.
+ * rreAfterBuf contains the RRE encoded version.  If the RRE encoded version is
+ * larger than the raw data or if it exceeds rreAfterBufSize then
+ * raw encoding is used instead.
+ */
+
+static int rreBeforeBufSize = 0;
+static char *rreBeforeBuf = NULL;
+
+static int rreAfterBufSize = 0;
+static char *rreAfterBuf = NULL;
+static int rreAfterBufLen;
+
+static int subrectEncode8(uint8_t *data, int w, int h);
+static int subrectEncode16(uint16_t *data, int w, int h);
+static int subrectEncode32(uint32_t *data, int w, int h);
+static uint32_t getBgColour(char *data, int size, int bpp);
+static rfbBool rfbSendSmallRectEncodingCoRRE(rfbClientPtr cl, int x, int y,
+                                          int w, int h);
+
+
+/*
+ * rfbSendRectEncodingCoRRE - send an arbitrary size rectangle using CoRRE
+ * encoding.
+ */
+
+rfbBool
+rfbSendRectEncodingCoRRE(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    if (h > cl->correMaxHeight) {
+        return (rfbSendRectEncodingCoRRE(cl, x, y, w, cl->correMaxHeight) &&
+		rfbSendRectEncodingCoRRE(cl, x, y + cl->correMaxHeight, w,
+					 h - cl->correMaxHeight));
+    }
+
+    if (w > cl->correMaxWidth) {
+        return (rfbSendRectEncodingCoRRE(cl, x, y, cl->correMaxWidth, h) &&
+		rfbSendRectEncodingCoRRE(cl, x + cl->correMaxWidth, y,
+					 w - cl->correMaxWidth, h));
+    }
+
+    rfbSendSmallRectEncodingCoRRE(cl, x, y, w, h);
+    return TRUE;
+}
+
+
+
+/*
+ * rfbSendSmallRectEncodingCoRRE - send a small (guaranteed < 256x256)
+ * rectangle using CoRRE encoding.
+ */
+
+static rfbBool
+rfbSendSmallRectEncodingCoRRE(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    rfbFramebufferUpdateRectHeader rect;
+    rfbRREHeader hdr;
+    int nSubrects;
+    int i;
+    char *fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y)
+                   + (x * (cl->screen->bitsPerPixel / 8)));
+
+    int maxRawSize = (cl->screen->width * cl->screen->height
+                      * (cl->format.bitsPerPixel / 8));
+
+    if (rreBeforeBufSize < maxRawSize) {
+        rreBeforeBufSize = maxRawSize;
+        if (rreBeforeBuf == NULL)
+            rreBeforeBuf = (char *)malloc(rreBeforeBufSize);
+        else
+            rreBeforeBuf = (char *)realloc(rreBeforeBuf, rreBeforeBufSize);
+    }
+
+    if (rreAfterBufSize < maxRawSize) {
+        rreAfterBufSize = maxRawSize;
+        if (rreAfterBuf == NULL)
+            rreAfterBuf = (char *)malloc(rreAfterBufSize);
+        else
+            rreAfterBuf = (char *)realloc(rreAfterBuf, rreAfterBufSize);
+    }
+
+    (*cl->translateFn)(cl->translateLookupTable,&(cl->screen->rfbServerFormat),
+                       &cl->format, fbptr, rreBeforeBuf,
+                       cl->screen->paddedWidthInBytes, w, h);
+
+    switch (cl->format.bitsPerPixel) {
+    case 8:
+        nSubrects = subrectEncode8((uint8_t *)rreBeforeBuf, w, h);
+        break;
+    case 16:
+        nSubrects = subrectEncode16((uint16_t *)rreBeforeBuf, w, h);
+        break;
+    case 32:
+        nSubrects = subrectEncode32((uint32_t *)rreBeforeBuf, w, h);
+        break;
+    default:
+        rfbLog("getBgColour: bpp %d?\n",cl->format.bitsPerPixel);
+        return FALSE;
+    }
+        
+    if (nSubrects < 0) {
+
+        /* RRE encoding was too large, use raw */
+
+        return rfbSendRectEncodingRaw(cl, x, y, w, h);
+    }
+
+    cl->rfbRectanglesSent[rfbEncodingCoRRE]++;
+    cl->rfbBytesSent[rfbEncodingCoRRE] += (sz_rfbFramebufferUpdateRectHeader
+                                           + sz_rfbRREHeader + rreAfterBufLen);
+
+    if (cl->ublen + sz_rfbFramebufferUpdateRectHeader + sz_rfbRREHeader
+        > UPDATE_BUF_SIZE)
+    {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    rect.r.x = Swap16IfLE(x);
+    rect.r.y = Swap16IfLE(y);
+    rect.r.w = Swap16IfLE(w);
+    rect.r.h = Swap16IfLE(h);
+    rect.encoding = Swap32IfLE(rfbEncodingCoRRE);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+           sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    hdr.nSubrects = Swap32IfLE(nSubrects);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&hdr, sz_rfbRREHeader);
+    cl->ublen += sz_rfbRREHeader;
+
+    for (i = 0; i < rreAfterBufLen;) {
+
+        int bytesToCopy = UPDATE_BUF_SIZE - cl->ublen;
+
+        if (i + bytesToCopy > rreAfterBufLen) {
+            bytesToCopy = rreAfterBufLen - i;
+        }
+
+        memcpy(&cl->updateBuf[cl->ublen], &rreAfterBuf[i], bytesToCopy);
+
+        cl->ublen += bytesToCopy;
+        i += bytesToCopy;
+
+        if (cl->ublen == UPDATE_BUF_SIZE) {
+            if (!rfbSendUpdateBuf(cl))
+                return FALSE;
+        }
+    }
+
+    return TRUE;
+}
+
+
+
+/*
+ * subrectEncode() encodes the given multicoloured rectangle as a background 
+ * colour overwritten by single-coloured rectangles.  It returns the number 
+ * of subrectangles in the encoded buffer, or -1 if subrect encoding won't
+ * fit in the buffer.  It puts the encoded rectangles in rreAfterBuf.  The
+ * single-colour rectangle partition is not optimal, but does find the biggest
+ * horizontal or vertical rectangle top-left anchored to each consecutive 
+ * coordinate position.
+ *
+ * The coding scheme is simply [<bgcolour><subrect><subrect>...] where each 
+ * <subrect> is [<colour><x><y><w><h>].
+ */
+
+#define DEFINE_SUBRECT_ENCODE(bpp)                                            \
+static int                                                                    \
+subrectEncode##bpp(data,w,h)                                                  \
+    uint##bpp##_t *data;                                                      \
+    int w;                                                                    \
+    int h;                                                                    \
+{                                                                             \
+    uint##bpp##_t cl;                                                         \
+    rfbCoRRERectangle subrect;                                                \
+    int x,y;                                                                  \
+    int i,j;                                                                  \
+    int hx=0,hy,vx=0,vy;                                                      \
+    int hyflag;                                                               \
+    uint##bpp##_t *seg;                                                       \
+    uint##bpp##_t *line;                                                      \
+    int hw,hh,vw,vh;                                                          \
+    int thex,they,thew,theh;                                                  \
+    int numsubs = 0;                                                          \
+    int newLen;                                                               \
+    uint##bpp##_t bg = (uint##bpp##_t)getBgColour((char*)data,w*h,bpp);       \
+                                                                              \
+    *((uint##bpp##_t*)rreAfterBuf) = bg;                                      \
+                                                                              \
+    rreAfterBufLen = (bpp/8);                                                 \
+                                                                              \
+    for (y=0; y<h; y++) {                                                     \
+      line = data+(y*w);                                                      \
+      for (x=0; x<w; x++) {                                                   \
+        if (line[x] != bg) {                                                  \
+          cl = line[x];                                                       \
+          hy = y-1;                                                           \
+          hyflag = 1;                                                         \
+          for (j=y; j<h; j++) {                                               \
+            seg = data+(j*w);                                                 \
+            if (seg[x] != cl) {break;}                                        \
+            i = x;                                                            \
+            while ((seg[i] == cl) && (i < w)) i += 1;                         \
+            i -= 1;                                                           \
+            if (j == y) vx = hx = i;                                          \
+            if (i < vx) vx = i;                                               \
+            if ((hyflag > 0) && (i >= hx)) {hy += 1;} else {hyflag = 0;}      \
+          }                                                                   \
+          vy = j-1;                                                           \
+                                                                              \
+          /*  We now have two possible subrects: (x,y,hx,hy) and (x,y,vx,vy)  \
+           *  We'll choose the bigger of the two.                             \
+           */                                                                 \
+          hw = hx-x+1;                                                        \
+          hh = hy-y+1;                                                        \
+          vw = vx-x+1;                                                        \
+          vh = vy-y+1;                                                        \
+                                                                              \
+          thex = x;                                                           \
+          they = y;                                                           \
+                                                                              \
+          if ((hw*hh) > (vw*vh)) {                                            \
+            thew = hw;                                                        \
+            theh = hh;                                                        \
+          } else {                                                            \
+            thew = vw;                                                        \
+            theh = vh;                                                        \
+          }                                                                   \
+                                                                              \
+          subrect.x = thex;                                                   \
+          subrect.y = they;                                                   \
+          subrect.w = thew;                                                   \
+          subrect.h = theh;                                                   \
+                                                                              \
+          newLen = rreAfterBufLen + (bpp/8) + sz_rfbCoRRERectangle;           \
+          if ((newLen > (w * h * (bpp/8))) || (newLen > rreAfterBufSize))     \
+            return -1;                                                        \
+                                                                              \
+          numsubs += 1;                                                       \
+          *((uint##bpp##_t*)(rreAfterBuf + rreAfterBufLen)) = cl;                 \
+          rreAfterBufLen += (bpp/8);                                          \
+          memcpy(&rreAfterBuf[rreAfterBufLen],&subrect,sz_rfbCoRRERectangle); \
+          rreAfterBufLen += sz_rfbCoRRERectangle;                             \
+                                                                              \
+          /*                                                                  \
+           * Now mark the subrect as done.                                    \
+           */                                                                 \
+          for (j=they; j < (they+theh); j++) {                                \
+            for (i=thex; i < (thex+thew); i++) {                              \
+              data[j*w+i] = bg;                                               \
+            }                                                                 \
+          }                                                                   \
+        }                                                                     \
+      }                                                                       \
+    }                                                                         \
+                                                                              \
+    return numsubs;                                                           \
+}
+
+DEFINE_SUBRECT_ENCODE(8)
+DEFINE_SUBRECT_ENCODE(16)
+DEFINE_SUBRECT_ENCODE(32)
+
+
+/*
+ * getBgColour() gets the most prevalent colour in a byte array.
+ */
+static uint32_t
+getBgColour(data,size,bpp)
+    char *data;
+    int size;
+    int bpp;
+{
+    
+#define NUMCLRS 256
+  
+  static int counts[NUMCLRS];
+  int i,j,k;
+
+  int maxcount = 0;
+  uint8_t maxclr = 0;
+
+  if (bpp != 8) {
+    if (bpp == 16) {
+      return ((uint16_t *)data)[0];
+    } else if (bpp == 32) {
+      return ((uint32_t *)data)[0];
+    } else {
+      rfbLog("getBgColour: bpp %d?\n",bpp);
+      return 0;
+    }
+  }
+
+  for (i=0; i<NUMCLRS; i++) {
+    counts[i] = 0;
+  }
+
+  for (j=0; j<size; j++) {
+    k = (int)(((uint8_t *)data)[j]);
+    if (k >= NUMCLRS) {
+      rfbLog("getBgColour: unusual colour = %d\n", k);
+      return 0;
+    }
+    counts[k] += 1;
+    if (counts[k] > maxcount) {
+      maxcount = counts[k];
+      maxclr = ((uint8_t *)data)[j];
+    }
+  }
+  
+  return maxclr;
+}
diff --git a/libvncserver/cursor.c b/libvncserver/cursor.c
new file mode 100644
index 0000000..4f290da
--- /dev/null
+++ b/libvncserver/cursor.c
@@ -0,0 +1,527 @@
+/*
+ * cursor.c - support for cursor shape updates.
+ */
+
+/*
+ *  Copyright (C) 2000, 2001 Const Kaplinsky.  All Rights Reserved.
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+/*
+ * Send cursor shape either in X-style format or in client pixel format.
+ */
+
+rfbBool
+rfbSendCursorShape(cl)
+    rfbClientPtr cl;
+{
+    rfbCursorPtr pCursor;
+    rfbFramebufferUpdateRectHeader rect;
+    rfbXCursorColors colors;
+    int saved_ublen;
+    int bitmapRowBytes, maskBytes, dataBytes;
+    int i, j;
+    uint8_t *bitmapData;
+    uint8_t bitmapByte;
+
+    pCursor = cl->screen->getCursorPtr(cl);
+    /*if(!pCursor) return TRUE;*/
+
+    if (cl->useRichCursorEncoding) {
+      if(pCursor && !pCursor->richSource)
+	MakeRichCursorFromXCursor(cl->screen,pCursor);
+      rect.encoding = Swap32IfLE(rfbEncodingRichCursor);
+    } else {
+       if(pCursor && !pCursor->source)
+	 MakeXCursorFromRichCursor(cl->screen,pCursor);
+       rect.encoding = Swap32IfLE(rfbEncodingXCursor);
+    }
+
+    /* If there is no cursor, send update with empty cursor data. */
+
+    if ( pCursor && pCursor->width == 1 &&
+	 pCursor->height == 1 &&
+	 pCursor->mask[0] == 0 ) {
+	pCursor = NULL;
+    }
+
+    if (pCursor == NULL) {
+	if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE ) {
+	    if (!rfbSendUpdateBuf(cl))
+		return FALSE;
+	}
+	rect.r.x = rect.r.y = 0;
+	rect.r.w = rect.r.h = 0;
+	memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+	       sz_rfbFramebufferUpdateRectHeader);
+	cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+	cl->rfbCursorShapeBytesSent += sz_rfbFramebufferUpdateRectHeader;
+	cl->rfbCursorShapeUpdatesSent++;
+
+	if (!rfbSendUpdateBuf(cl))
+	    return FALSE;
+
+	return TRUE;
+    }
+
+    /* Calculate data sizes. */
+
+    bitmapRowBytes = (pCursor->width + 7) / 8;
+    maskBytes = bitmapRowBytes * pCursor->height;
+    dataBytes = (cl->useRichCursorEncoding) ?
+	(pCursor->width * pCursor->height *
+	 (cl->format.bitsPerPixel / 8)) : maskBytes;
+
+    /* Send buffer contents if needed. */
+
+    if ( cl->ublen + sz_rfbFramebufferUpdateRectHeader +
+	 sz_rfbXCursorColors + maskBytes + dataBytes > UPDATE_BUF_SIZE ) {
+	if (!rfbSendUpdateBuf(cl))
+	    return FALSE;
+    }
+
+    if ( cl->ublen + sz_rfbFramebufferUpdateRectHeader +
+	 sz_rfbXCursorColors + maskBytes + dataBytes > UPDATE_BUF_SIZE ) {
+	return FALSE;		/* FIXME. */
+    }
+
+    saved_ublen = cl->ublen;
+
+    /* Prepare rectangle header. */
+
+    rect.r.x = Swap16IfLE(pCursor->xhot);
+    rect.r.y = Swap16IfLE(pCursor->yhot);
+    rect.r.w = Swap16IfLE(pCursor->width);
+    rect.r.h = Swap16IfLE(pCursor->height);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    /* Prepare actual cursor data (depends on encoding used). */
+
+    if (!cl->useRichCursorEncoding) {
+	/* XCursor encoding. */
+	colors.foreRed   = (char)(pCursor->foreRed   >> 8);
+	colors.foreGreen = (char)(pCursor->foreGreen >> 8);
+	colors.foreBlue  = (char)(pCursor->foreBlue  >> 8);
+	colors.backRed   = (char)(pCursor->backRed   >> 8);
+	colors.backGreen = (char)(pCursor->backGreen >> 8);
+	colors.backBlue  = (char)(pCursor->backBlue  >> 8);
+
+	memcpy(&cl->updateBuf[cl->ublen], (char *)&colors, sz_rfbXCursorColors);
+	cl->ublen += sz_rfbXCursorColors;
+
+	bitmapData = (uint8_t *)pCursor->source;
+
+	for (i = 0; i < pCursor->height; i++) {
+	    for (j = 0; j < bitmapRowBytes; j++) {
+		bitmapByte = bitmapData[i * bitmapRowBytes + j];
+		cl->updateBuf[cl->ublen++] = (char)bitmapByte;
+	    }
+	}
+    } else {
+	/* RichCursor encoding. */
+       int bpp1=cl->screen->rfbServerFormat.bitsPerPixel/8,
+	 bpp2=cl->format.bitsPerPixel/8;
+       (*cl->translateFn)(cl->translateLookupTable,
+		       &(cl->screen->rfbServerFormat),
+                       &cl->format, (char*)pCursor->richSource,
+		       &cl->updateBuf[cl->ublen],
+                       pCursor->width*bpp1, pCursor->width, pCursor->height);
+
+       cl->ublen += pCursor->width*bpp2*pCursor->height;
+    }
+
+    /* Prepare transparency mask. */
+
+    bitmapData = (uint8_t *)pCursor->mask;
+
+    for (i = 0; i < pCursor->height; i++) {
+	for (j = 0; j < bitmapRowBytes; j++) {
+	    bitmapByte = bitmapData[i * bitmapRowBytes + j];
+	    cl->updateBuf[cl->ublen++] = (char)bitmapByte;
+	}
+    }
+
+    /* Send everything we have prepared in the cl->updateBuf[]. */
+
+    cl->rfbCursorShapeBytesSent += (cl->ublen - saved_ublen);
+    cl->rfbCursorShapeUpdatesSent++;
+
+    if (!rfbSendUpdateBuf(cl))
+	return FALSE;
+
+    return TRUE;
+}
+
+/*
+ * Send cursor position (PointerPos pseudo-encoding).
+ */
+
+rfbBool
+rfbSendCursorPos(rfbClientPtr cl)
+{
+  rfbFramebufferUpdateRectHeader rect;
+
+  if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) {
+    if (!rfbSendUpdateBuf(cl))
+      return FALSE;
+  }
+
+  rect.encoding = Swap32IfLE(rfbEncodingPointerPos);
+  rect.r.x = Swap16IfLE(cl->screen->cursorX);
+  rect.r.y = Swap16IfLE(cl->screen->cursorY);
+  rect.r.w = 0;
+  rect.r.h = 0;
+
+  memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+	 sz_rfbFramebufferUpdateRectHeader);
+  cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+  cl->rfbCursorPosBytesSent += sz_rfbFramebufferUpdateRectHeader;
+  cl->rfbCursorPosUpdatesSent++;
+
+  if (!rfbSendUpdateBuf(cl))
+    return FALSE;
+
+  return TRUE;
+}
+
+/* conversion routine for predefined cursors in LSB order */
+unsigned char rfbReverseByte[0x100] = {
+  /* copied from Xvnc/lib/font/util/utilbitmap.c */
+	0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
+	0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
+	0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
+	0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
+	0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
+	0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
+	0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
+	0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
+	0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
+	0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
+	0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
+	0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
+	0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
+	0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
+	0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
+	0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
+	0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
+	0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
+	0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
+	0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
+	0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
+	0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
+	0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
+	0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
+	0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
+	0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
+	0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
+	0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
+	0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
+	0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
+	0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
+	0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
+};
+
+void rfbConvertLSBCursorBitmapOrMask(int width,int height,unsigned char* bitmap)
+{
+   int i,t=(width+7)/8*height;
+   for(i=0;i<t;i++)
+     bitmap[i]=rfbReverseByte[(int)bitmap[i]];
+}
+
+/* Cursor creation. You "paint" a cursor and let these routines do the work */
+
+rfbCursorPtr rfbMakeXCursor(int width,int height,char* cursorString,char* maskString)
+{
+   int i,j,w=(width+7)/8;
+   rfbCursorPtr cursor = (rfbCursorPtr)calloc(1,sizeof(rfbCursor));
+   char* cp;
+   unsigned char bit;
+
+   cursor->cleanup=TRUE;
+   cursor->width=width;
+   cursor->height=height;
+   /*cursor->backRed=cursor->backGreen=cursor->backBlue=0xffff;*/
+   cursor->foreRed=cursor->foreGreen=cursor->foreBlue=0xffff;
+   
+   cursor->source = (unsigned char*)calloc(w,height);
+   cursor->cleanupSource = TRUE;
+   for(j=0,cp=cursorString;j<height;j++)
+      for(i=0,bit=0x80;i<width;i++,bit=(bit&1)?0x80:bit>>1,cp++)
+	if(*cp!=' ') cursor->source[j*w+i/8]|=bit;
+
+   if(maskString) {
+      cursor->mask = (unsigned char*)calloc(w,height);
+      for(j=0,cp=maskString;j<height;j++)
+	for(i=0,bit=0x80;i<width;i++,bit=(bit&1)?0x80:bit>>1,cp++)
+	  if(*cp!=' ') cursor->mask[j*w+i/8]|=bit;
+   } else
+     cursor->mask = (unsigned char*)rfbMakeMaskForXCursor(width,height,(char*)cursor->source);
+   cursor->cleanupMask = TRUE;
+
+   return(cursor);
+}
+
+char* rfbMakeMaskForXCursor(int width,int height,char* source)
+{
+   int i,j,w=(width+7)/8;
+   char* mask=(char*)calloc(w,height);
+   unsigned char c;
+   
+   for(j=0;j<height;j++)
+     for(i=w-1;i>=0;i--) {
+	c=source[j*w+i];
+	if(j>0) c|=source[(j-1)*w+i];
+	if(j<height-1) c|=source[(j+1)*w+i];
+	
+	if(i>0 && (c&0x80))
+	  mask[j*w+i-1]|=0x01;
+	if(i<w-1 && (c&0x01))
+	  mask[j*w+i+1]|=0x80;
+	
+	mask[j*w+i]|=(c<<1)|c|(c>>1);
+     }
+   
+   return(mask);
+}
+
+void rfbFreeCursor(rfbCursorPtr cursor)
+{
+   if(cursor) {
+       if(cursor->cleanupRichSource && cursor->richSource)
+	   free(cursor->richSource);
+       if(cursor->cleanupSource && cursor->source)
+	   free(cursor->source);
+       if(cursor->cleanupMask && cursor->mask)
+	   free(cursor->mask);
+       if(cursor->cleanup)
+	   free(cursor);
+       else {
+	   cursor->cleanup=cursor->cleanupSource=cursor->cleanupMask
+	       =cursor->cleanupRichSource=FALSE;
+	   cursor->source=cursor->mask=cursor->richSource=0;
+       }
+   }
+   
+}
+
+/* background and foregroud colour have to be set beforehand */
+void MakeXCursorFromRichCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor)
+{
+   rfbPixelFormat* format=&rfbScreen->rfbServerFormat;
+   int i,j,w=(cursor->width+7)/8,bpp=format->bitsPerPixel/8,
+     width=cursor->width*bpp;
+   uint32_t background;
+   char *back=(char*)&background;
+   unsigned char bit;
+
+   if(cursor->source && cursor->cleanupSource)
+       free(cursor->source);
+   cursor->source=(unsigned char*)calloc(w,cursor->height);
+   cursor->cleanupSource=TRUE;
+   
+   if(format->bigEndian)
+      back+=4-bpp;
+
+   background=cursor->backRed<<format->redShift|
+     cursor->backGreen<<format->greenShift|cursor->backBlue<<format->blueShift;
+
+   for(j=0;j<cursor->height;j++)
+     for(i=0,bit=0x80;i<cursor->width;i++,bit=(bit&1)?0x80:bit>>1)
+       if(memcmp(cursor->richSource+j*width+i*bpp,back,bpp))
+	 cursor->source[j*w+i/8]|=bit;
+}
+
+void MakeRichCursorFromXCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor)
+{
+   rfbPixelFormat* format=&rfbScreen->rfbServerFormat;
+   int i,j,w=(cursor->width+7)/8,bpp=format->bitsPerPixel/8;
+   uint32_t background,foreground;
+   char *back=(char*)&background,*fore=(char*)&foreground;
+   unsigned char *cp;
+   unsigned char bit;
+
+   if(cursor->richSource && cursor->cleanupRichSource)
+       free(cursor->richSource);
+   cp=cursor->richSource=(unsigned char*)calloc(cursor->width*bpp,cursor->height);
+   cursor->cleanupRichSource=TRUE;
+   
+   if(format->bigEndian) {
+      back+=4-bpp;
+      fore+=4-bpp;
+   }
+
+   background=cursor->backRed<<format->redShift|
+     cursor->backGreen<<format->greenShift|cursor->backBlue<<format->blueShift;
+   foreground=cursor->foreRed<<format->redShift|
+     cursor->foreGreen<<format->greenShift|cursor->foreBlue<<format->blueShift;
+   
+   for(j=0;j<cursor->height;j++)
+     for(i=0,bit=0x80;i<cursor->height;i++,bit=(bit&1)?0x80:bit>>1,cp+=bpp)
+       if(cursor->source[j*w+i/8]&bit) memcpy(cp,fore,bpp);
+       else memcpy(cp,back,bpp);
+}
+
+/* functions to draw/hide cursor directly in the frame buffer */
+
+void rfbUndrawCursor(rfbScreenInfoPtr s)
+{
+   rfbCursorPtr c=s->cursor;
+   int j,x1,x2,y1,y2,bpp=s->rfbServerFormat.bitsPerPixel/8,
+     rowstride=s->paddedWidthInBytes;
+   LOCK(s->cursorMutex);
+   if(!s->cursorIsDrawn) {
+     UNLOCK(s->cursorMutex);
+     return;
+   }
+   
+   /* restore what is under the cursor */
+   x1=s->cursorX-c->xhot;
+   x2=x1+c->width;
+   if(x1<0) x1=0;
+   if(x2>=s->width) x2=s->width-1;
+   x2-=x1; if(x2<=0) {
+     UNLOCK(s->cursorMutex);
+     return;
+   }
+   y1=s->cursorY-c->yhot;
+   y2=y1+c->height;
+   if(y1<0) y1=0;
+   if(y2>=s->height) y2=s->height-1;
+   y2-=y1; if(y2<=0) {
+     UNLOCK(s->cursorMutex);
+     return;
+   }
+
+   /* get saved data */
+   for(j=0;j<y2;j++)
+     memcpy(s->frameBuffer+(y1+j)*rowstride+x1*bpp,
+	    s->underCursorBuffer+j*x2*bpp,
+	    x2*bpp);
+   
+   /* rfbMarkRectAsModified(s,x1,y1,x1+x2,y1+y2); */
+   s->cursorIsDrawn = FALSE;
+   UNLOCK(s->cursorMutex);
+}
+
+void rfbDrawCursor(rfbScreenInfoPtr s)
+{
+   rfbCursorPtr c=s->cursor;
+   int i,j,x1,x2,y1,y2,i1,j1,bpp=s->rfbServerFormat.bitsPerPixel/8,
+     rowstride=s->paddedWidthInBytes,
+     bufSize,w;
+   rfbBool wasChanged=FALSE;
+   
+   if(!c) return;
+   LOCK(s->cursorMutex);
+   if(s->cursorIsDrawn) {
+     /* is already drawn */
+     UNLOCK(s->cursorMutex);
+     return;
+   }
+   bufSize=c->width*c->height*bpp;
+   w=(c->width+7)/8;
+   if(s->underCursorBufferLen<bufSize) {
+      if(s->underCursorBuffer!=NULL)
+	free(s->underCursorBuffer);
+      s->underCursorBuffer=malloc(bufSize);
+      s->underCursorBufferLen=bufSize;
+   }
+   /* save what is under the cursor */
+   i1=j1=0; /* offset in cursor */
+   x1=s->cursorX-c->xhot;
+   x2=x1+c->width;
+   if(x1<0) { i1=-x1; x1=0; }
+   if(x2>=s->width) x2=s->width-1;
+   x2-=x1; if(x2<=0) {
+     UNLOCK(s->cursorMutex);
+     return; /* nothing to do */
+   }
+   y1=s->cursorY-c->yhot;
+   y2=y1+c->height;
+   if(y1<0) { j1=-y1; y1=0; }
+   if(y2>=s->height) y2=s->height-1;
+   y2-=y1; if(y2<=0) {
+     UNLOCK(s->cursorMutex);
+     return; /* nothing to do */
+   }
+
+   /* save data */
+   for(j=0;j<y2;j++) {
+     char* dest=s->underCursorBuffer+j*x2*bpp;
+     const char* src=s->frameBuffer+(y1+j)*rowstride+x1*bpp;
+     unsigned int count=x2*bpp;
+     if(wasChanged || memcmp(dest,src,count)) {
+       wasChanged=TRUE;
+       memcpy(dest,src,count);
+     }
+   }
+   
+   if(!c->richSource)
+     MakeRichCursorFromXCursor(s,c);
+   
+   /* now the cursor has to be drawn */
+   for(j=0;j<y2;j++)
+     for(i=0;i<x2;i++)
+       if((c->mask[(j+j1)*w+(i+i1)/8]<<((i+i1)&7))&0x80)
+	 memcpy(s->frameBuffer+(j+y1)*rowstride+(i+x1)*bpp,
+		c->richSource+(j+j1)*c->width*bpp+(i+i1)*bpp,bpp);
+
+   if(wasChanged)
+     rfbMarkRectAsModified(s,x1,y1,x1+x2,y1+y2);
+   s->cursorIsDrawn = TRUE;
+   UNLOCK(s->cursorMutex);
+}
+
+/* for debugging */
+
+void rfbPrintXCursor(rfbCursorPtr cursor)
+{
+   int i,i1,j,w=(cursor->width+7)/8;
+   unsigned char bit;
+   for(j=0;j<cursor->height;j++) {
+      for(i=0,i1=0,bit=0x80;i1<cursor->width;i1++,i+=(bit&1)?1:0,bit=(bit&1)?0x80:bit>>1)
+	if(cursor->source[j*w+i]&bit) putchar('#'); else putchar(' ');
+      putchar(':');
+      for(i=0,i1=0,bit=0x80;i1<cursor->width;i1++,i+=(bit&1)?1:0,bit=(bit&1)?0x80:bit>>1)
+	if(cursor->mask[j*w+i]&bit) putchar('#'); else putchar(' ');
+      putchar('\n');
+   }
+}
+
+void rfbSetCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr c,rfbBool freeOld)
+{
+  LOCK(rfbScreen->cursorMutex);
+  while(rfbScreen->cursorIsDrawn) {
+    UNLOCK(rfbScreen->cursorMutex);
+    rfbUndrawCursor(rfbScreen);
+    LOCK(rfbScreen->cursorMutex);
+  }
+
+  if(rfbScreen->cursor && (freeOld || rfbScreen->cursor->cleanup))
+    rfbFreeCursor(rfbScreen->cursor);
+
+  rfbScreen->cursor = c;
+
+  UNLOCK(rfbScreen->cursorMutex);
+}
diff --git a/libvncserver/cutpaste.c b/libvncserver/cutpaste.c
new file mode 100755
index 0000000..6a9dcb9
--- /dev/null
+++ b/libvncserver/cutpaste.c
@@ -0,0 +1,38 @@
+/*
+ * cutpaste.c - routines to deal with cut & paste buffers / selection.
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+
+/*
+ * rfbSetXCutText sets the cut buffer to be the given string.  We also clear
+ * the primary selection.  Ideally we'd like to set it to the same thing, but I
+ * can't work out how to do that without some kind of helper X client.
+ */
+
+void rfbGotXCutText(rfbScreenInfoPtr rfbScreen, char *str, int len)
+{
+   rfbSendServerCutText(rfbScreen, str, len);
+}
diff --git a/libvncserver/d3des.c b/libvncserver/d3des.c
new file mode 100755
index 0000000..4994afb
--- /dev/null
+++ b/libvncserver/d3des.c
@@ -0,0 +1,442 @@
+/*
+ * This is D3DES (V5.09) by Richard Outerbridge with the double and
+ * triple-length support removed for use in VNC.  Also the bytebit[] array
+ * has been reversed so that the most significant bit in each byte of the
+ * key is ignored, not the least significant.
+ *
+ * These changes are:
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* D3DES (V5.09) -
+ *
+ * A portable, public domain, version of the Data Encryption Standard.
+ *
+ * Written with Symantec's THINK (Lightspeed) C by Richard Outerbridge.
+ * Thanks to: Dan Hoey for his excellent Initial and Inverse permutation
+ * code;  Jim Gillogly & Phil Karn for the DES key schedule code; Dennis
+ * Ferguson, Eric Young and Dana How for comparing notes; and Ray Lau,
+ * for humouring me on.
+ *
+ * Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge.
+ * (GEnie : OUTER; CIS : [71755,204]) Graven Imagery, 1992.
+ */
+
+#include "d3des.h"
+
+static void scrunch(unsigned char *, unsigned long *);
+static void unscrun(unsigned long *, unsigned char *);
+static void desfunc(unsigned long *, unsigned long *);
+static void cookey(unsigned long *);
+
+static unsigned long KnL[32] = { 0L };
+/*
+static unsigned long KnR[32] = { 0L };
+static unsigned long Kn3[32] = { 0L };
+static unsigned char Df_Key[24] = {
+	0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
+	0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,
+	0x89,0xab,0xcd,0xef,0x01,0x23,0x45,0x67 };
+*/
+
+static unsigned short bytebit[8]	= {
+	01, 02, 04, 010, 020, 040, 0100, 0200 };
+
+static unsigned long bigbyte[24] = {
+	0x800000L,	0x400000L,	0x200000L,	0x100000L,
+	0x80000L,	0x40000L,	0x20000L,	0x10000L,
+	0x8000L,	0x4000L,	0x2000L,	0x1000L,
+	0x800L, 	0x400L, 	0x200L, 	0x100L,
+	0x80L,		0x40L,		0x20L,		0x10L,
+	0x8L,		0x4L,		0x2L,		0x1L	};
+
+/* Use the key schedule specified in the Standard (ANSI X3.92-1981). */
+
+static unsigned char pc1[56] = {
+	56, 48, 40, 32, 24, 16,  8,	 0, 57, 49, 41, 33, 25, 17,
+	 9,  1, 58, 50, 42, 34, 26,	18, 10,  2, 59, 51, 43, 35,
+	62, 54, 46, 38, 30, 22, 14,	 6, 61, 53, 45, 37, 29, 21,
+	13,  5, 60, 52, 44, 36, 28,	20, 12,  4, 27, 19, 11,  3 };
+
+static unsigned char totrot[16] = {
+	1,2,4,6,8,10,12,14,15,17,19,21,23,25,27,28 };
+
+static unsigned char pc2[48] = {
+	13, 16, 10, 23,  0,  4,  2, 27, 14,  5, 20,  9,
+	22, 18, 11,  3, 25,  7, 15,  6, 26, 19, 12,  1,
+	40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47,
+	43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31 };
+
+void deskey(key, edf)	/* Thanks to James Gillogly & Phil Karn! */
+unsigned char *key;
+int edf;
+{
+	register int i, j, l, m, n;
+	unsigned char pc1m[56], pcr[56];
+	unsigned long kn[32];
+
+	for ( j = 0; j < 56; j++ ) {
+		l = pc1[j];
+		m = l & 07;
+		pc1m[j] = (key[l >> 3] & bytebit[m]) ? 1 : 0;
+		}
+	for( i = 0; i < 16; i++ ) {
+		if( edf == DE1 ) m = (15 - i) << 1;
+		else m = i << 1;
+		n = m + 1;
+		kn[m] = kn[n] = 0L;
+		for( j = 0; j < 28; j++ ) {
+			l = j + totrot[i];
+			if( l < 28 ) pcr[j] = pc1m[l];
+			else pcr[j] = pc1m[l - 28];
+			}
+		for( j = 28; j < 56; j++ ) {
+		    l = j + totrot[i];
+		    if( l < 56 ) pcr[j] = pc1m[l];
+		    else pcr[j] = pc1m[l - 28];
+		    }
+		for( j = 0; j < 24; j++ ) {
+			if( pcr[pc2[j]] ) kn[m] |= bigbyte[j];
+			if( pcr[pc2[j+24]] ) kn[n] |= bigbyte[j];
+			}
+		}
+	cookey(kn);
+	return;
+	}
+
+static void cookey(raw1)
+register unsigned long *raw1;
+{
+	register unsigned long *cook, *raw0;
+	unsigned long dough[32];
+	register int i;
+
+	cook = dough;
+	for( i = 0; i < 16; i++, raw1++ ) {
+		raw0 = raw1++;
+		*cook	 = (*raw0 & 0x00fc0000L) << 6;
+		*cook	|= (*raw0 & 0x00000fc0L) << 10;
+		*cook	|= (*raw1 & 0x00fc0000L) >> 10;
+		*cook++ |= (*raw1 & 0x00000fc0L) >> 6;
+		*cook	 = (*raw0 & 0x0003f000L) << 12;
+		*cook	|= (*raw0 & 0x0000003fL) << 16;
+		*cook	|= (*raw1 & 0x0003f000L) >> 4;
+		*cook++ |= (*raw1 & 0x0000003fL);
+		}
+	usekey(dough);
+	return;
+	}
+
+void cpkey(into)
+register unsigned long *into;
+{
+	register unsigned long *from, *endp;
+
+	from = KnL, endp = &KnL[32];
+	while( from < endp ) *into++ = *from++;
+	return;
+	}
+
+void usekey(from)
+register unsigned long *from;
+{
+	register unsigned long *to, *endp;
+
+	to = KnL, endp = &KnL[32];
+	while( to < endp ) *to++ = *from++;
+	return;
+	}
+
+void des(inblock, outblock)
+unsigned char *inblock, *outblock;
+{
+	unsigned long work[2];
+
+	scrunch(inblock, work);
+	desfunc(work, KnL);
+	unscrun(work, outblock);
+	return;
+	}
+
+static void scrunch(outof, into)
+register unsigned char *outof;
+register unsigned long *into;
+{
+	*into	 = (*outof++ & 0xffL) << 24;
+	*into	|= (*outof++ & 0xffL) << 16;
+	*into	|= (*outof++ & 0xffL) << 8;
+	*into++ |= (*outof++ & 0xffL);
+	*into	 = (*outof++ & 0xffL) << 24;
+	*into	|= (*outof++ & 0xffL) << 16;
+	*into	|= (*outof++ & 0xffL) << 8;
+	*into	|= (*outof   & 0xffL);
+	return;
+	}
+
+static void unscrun(outof, into)
+register unsigned long *outof;
+register unsigned char *into;
+{
+	*into++ = (unsigned char)((*outof >> 24) & 0xffL);
+	*into++ = (unsigned char)((*outof >> 16) & 0xffL);
+	*into++ = (unsigned char)((*outof >>  8) & 0xffL);
+	*into++ = (unsigned char)( *outof++	 & 0xffL);
+	*into++ = (unsigned char)((*outof >> 24) & 0xffL);
+	*into++ = (unsigned char)((*outof >> 16) & 0xffL);
+	*into++ = (unsigned char)((*outof >>  8) & 0xffL);
+	*into	= (unsigned char)( *outof	 & 0xffL);
+	return;
+	}
+
+static unsigned long SP1[64] = {
+	0x01010400L, 0x00000000L, 0x00010000L, 0x01010404L,
+	0x01010004L, 0x00010404L, 0x00000004L, 0x00010000L,
+	0x00000400L, 0x01010400L, 0x01010404L, 0x00000400L,
+	0x01000404L, 0x01010004L, 0x01000000L, 0x00000004L,
+	0x00000404L, 0x01000400L, 0x01000400L, 0x00010400L,
+	0x00010400L, 0x01010000L, 0x01010000L, 0x01000404L,
+	0x00010004L, 0x01000004L, 0x01000004L, 0x00010004L,
+	0x00000000L, 0x00000404L, 0x00010404L, 0x01000000L,
+	0x00010000L, 0x01010404L, 0x00000004L, 0x01010000L,
+	0x01010400L, 0x01000000L, 0x01000000L, 0x00000400L,
+	0x01010004L, 0x00010000L, 0x00010400L, 0x01000004L,
+	0x00000400L, 0x00000004L, 0x01000404L, 0x00010404L,
+	0x01010404L, 0x00010004L, 0x01010000L, 0x01000404L,
+	0x01000004L, 0x00000404L, 0x00010404L, 0x01010400L,
+	0x00000404L, 0x01000400L, 0x01000400L, 0x00000000L,
+	0x00010004L, 0x00010400L, 0x00000000L, 0x01010004L };
+
+static unsigned long SP2[64] = {
+	0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L,
+	0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L,
+	0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L,
+	0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L,
+	0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L,
+	0x80000000L, 0x00008000L, 0x00108020L, 0x80100000L,
+	0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L,
+	0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L,
+	0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L,
+	0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L,
+	0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L,
+	0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L,
+	0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L,
+	0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L,
+	0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L,
+	0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L };
+
+static unsigned long SP3[64] = {
+	0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L,
+	0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L,
+	0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L,
+	0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L,
+	0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L,
+	0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L,
+	0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L,
+	0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L,
+	0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L,
+	0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L,
+	0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L,
+	0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L,
+	0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L,
+	0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L,
+	0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L,
+	0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L };
+
+static unsigned long SP4[64] = {
+	0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L,
+	0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L,
+	0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L,
+	0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L,
+	0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L,
+	0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L,
+	0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L,
+	0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L,
+	0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L,
+	0x00000081L, 0x00000000L, 0x00000000L, 0x00802000L,
+	0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L,
+	0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L,
+	0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L,
+	0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L,
+	0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L,
+	0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L };
+
+static unsigned long SP5[64] = {
+	0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L,
+	0x00080000L, 0x00000100L, 0x40000000L, 0x02080000L,
+	0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L,
+	0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L,
+	0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L,
+	0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L,
+	0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L,
+	0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L,
+	0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L,
+	0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L,
+	0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L,
+	0x40080100L, 0x00000100L, 0x02000000L, 0x42080000L,
+	0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L,
+	0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L,
+	0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L,
+	0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L };
+
+static unsigned long SP6[64] = {
+	0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L,
+	0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L,
+	0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L,
+	0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L,
+	0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L,
+	0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L,
+	0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L,
+	0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L,
+	0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L,
+	0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L,
+	0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L,
+	0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L,
+	0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L,
+	0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L,
+	0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L,
+	0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L };
+
+static unsigned long SP7[64] = {
+	0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L,
+	0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L,
+	0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L,
+	0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L,
+	0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L,
+	0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L,
+	0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L,
+	0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L,
+	0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L,
+	0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L,
+	0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L,
+	0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L,
+	0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L,
+	0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L,
+	0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L,
+	0x04000002L, 0x04000800L, 0x00000800L, 0x00200002L };
+
+static unsigned long SP8[64] = {
+	0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L,
+	0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L,
+	0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L,
+	0x10041000L, 0x00041040L, 0x00001000L, 0x00000040L,
+	0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L,
+	0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L,
+	0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L,
+	0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L,
+	0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L,
+	0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L,
+	0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L,
+	0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L,
+	0x00000000L, 0x10041040L, 0x00040040L, 0x10000040L,
+	0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L,
+	0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L,
+	0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L };
+
+static void desfunc(block, keys)
+register unsigned long *block, *keys;
+{
+	register unsigned long fval, work, right, leftt;
+	register int round;
+
+	leftt = block[0];
+	right = block[1];
+	work = ((leftt >> 4) ^ right) & 0x0f0f0f0fL;
+	right ^= work;
+	leftt ^= (work << 4);
+	work = ((leftt >> 16) ^ right) & 0x0000ffffL;
+	right ^= work;
+	leftt ^= (work << 16);
+	work = ((right >> 2) ^ leftt) & 0x33333333L;
+	leftt ^= work;
+	right ^= (work << 2);
+	work = ((right >> 8) ^ leftt) & 0x00ff00ffL;
+	leftt ^= work;
+	right ^= (work << 8);
+	right = ((right << 1) | ((right >> 31) & 1L)) & 0xffffffffL;
+	work = (leftt ^ right) & 0xaaaaaaaaL;
+	leftt ^= work;
+	right ^= work;
+	leftt = ((leftt << 1) | ((leftt >> 31) & 1L)) & 0xffffffffL;
+
+	for( round = 0; round < 8; round++ ) {
+		work  = (right << 28) | (right >> 4);
+		work ^= *keys++;
+		fval  = SP7[ work		 & 0x3fL];
+		fval |= SP5[(work >>  8) & 0x3fL];
+		fval |= SP3[(work >> 16) & 0x3fL];
+		fval |= SP1[(work >> 24) & 0x3fL];
+		work  = right ^ *keys++;
+		fval |= SP8[ work		 & 0x3fL];
+		fval |= SP6[(work >>  8) & 0x3fL];
+		fval |= SP4[(work >> 16) & 0x3fL];
+		fval |= SP2[(work >> 24) & 0x3fL];
+		leftt ^= fval;
+		work  = (leftt << 28) | (leftt >> 4);
+		work ^= *keys++;
+		fval  = SP7[ work		 & 0x3fL];
+		fval |= SP5[(work >>  8) & 0x3fL];
+		fval |= SP3[(work >> 16) & 0x3fL];
+		fval |= SP1[(work >> 24) & 0x3fL];
+		work  = leftt ^ *keys++;
+		fval |= SP8[ work		 & 0x3fL];
+		fval |= SP6[(work >>  8) & 0x3fL];
+		fval |= SP4[(work >> 16) & 0x3fL];
+		fval |= SP2[(work >> 24) & 0x3fL];
+		right ^= fval;
+		}
+
+	right = (right << 31) | (right >> 1);
+	work = (leftt ^ right) & 0xaaaaaaaaL;
+	leftt ^= work;
+	right ^= work;
+	leftt = (leftt << 31) | (leftt >> 1);
+	work = ((leftt >> 8) ^ right) & 0x00ff00ffL;
+	right ^= work;
+	leftt ^= (work << 8);
+	work = ((leftt >> 2) ^ right) & 0x33333333L;
+	right ^= work;
+	leftt ^= (work << 2);
+	work = ((right >> 16) ^ leftt) & 0x0000ffffL;
+	leftt ^= work;
+	right ^= (work << 16);
+	work = ((right >> 4) ^ leftt) & 0x0f0f0f0fL;
+	leftt ^= work;
+	right ^= (work << 4);
+	*block++ = right;
+	*block = leftt;
+	return;
+	}
+
+/* Validation sets:
+ *
+ * Single-length key, single-length plaintext -
+ * Key	  : 0123 4567 89ab cdef
+ * Plain  : 0123 4567 89ab cde7
+ * Cipher : c957 4425 6a5e d31d
+ *
+ * Double-length key, single-length plaintext -
+ * Key	  : 0123 4567 89ab cdef fedc ba98 7654 3210
+ * Plain  : 0123 4567 89ab cde7
+ * Cipher : 7f1d 0a77 826b 8aff
+ *
+ * Double-length key, double-length plaintext -
+ * Key	  : 0123 4567 89ab cdef fedc ba98 7654 3210
+ * Plain  : 0123 4567 89ab cdef 0123 4567 89ab cdff
+ * Cipher : 27a0 8440 406a df60 278f 47cf 42d6 15d7
+ *
+ * Triple-length key, single-length plaintext -
+ * Key	  : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567
+ * Plain  : 0123 4567 89ab cde7
+ * Cipher : de0b 7c06 ae5e 0ed5
+ *
+ * Triple-length key, double-length plaintext -
+ * Key	  : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567
+ * Plain  : 0123 4567 89ab cdef 0123 4567 89ab cdff
+ * Cipher : ad0d 1b30 ac17 cf07 0ed1 1c63 81e4 4de5
+ *
+ * d3des V5.0a rwo 9208.07 18:44 Graven Imagery
+ **********************************************************************/
diff --git a/libvncserver/d3des.h b/libvncserver/d3des.h
new file mode 100755
index 0000000..b2f9724
--- /dev/null
+++ b/libvncserver/d3des.h
@@ -0,0 +1,56 @@
+#ifndef D3DES_H
+#define D3DES_H
+
+/*
+ * This is D3DES (V5.09) by Richard Outerbridge with the double and
+ * triple-length support removed for use in VNC.
+ *
+ * These changes are:
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* d3des.h -
+ *
+ *	Headers and defines for d3des.c
+ *	Graven Imagery, 1992.
+ *
+ * Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge
+ *	(GEnie : OUTER; CIS : [71755,204])
+ */
+
+#define EN0	0	/* MODE == encrypt */
+#define DE1	1	/* MODE == decrypt */
+
+extern void deskey(unsigned char *, int);
+/*		      hexkey[8]     MODE
+ * Sets the internal key register according to the hexadecimal
+ * key contained in the 8 bytes of hexkey, according to the DES,
+ * for encryption or decryption according to MODE.
+ */
+
+extern void usekey(unsigned long *);
+/*		    cookedkey[32]
+ * Loads the internal key register with the data in cookedkey.
+ */
+
+extern void cpkey(unsigned long *);
+/*		   cookedkey[32]
+ * Copies the contents of the internal key register into the storage
+ * located at &cookedkey[0].
+ */
+
+extern void des(unsigned char *, unsigned char *);
+/*		    from[8]	      to[8]
+ * Encrypts/Decrypts (according to the key currently loaded in the
+ * internal key register) one block of eight bytes at address 'from'
+ * into the block at address 'to'.  They can be the same.
+ */
+
+/* d3des.h V5.09 rwo 9208.04 15:06 Graven Imagery
+ ********************************************************************/
+
+#endif
diff --git a/libvncserver/draw.c b/libvncserver/draw.c
new file mode 100755
index 0000000..7e1ed49
--- /dev/null
+++ b/libvncserver/draw.c
@@ -0,0 +1,61 @@
+#include <rfb/rfb.h>
+
+void rfbFillRect(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,rfbPixel col)
+{
+  int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3;
+  int i,j;
+  char* colour=(char*)&col;
+
+   if(!rfbEndianTest)
+    colour += 4-bpp;
+  for(j=y1;j<y2;j++)
+    for(i=x1;i<x2;i++)
+      memcpy(s->frameBuffer+j*rowstride+i*bpp,colour,bpp);
+  rfbMarkRectAsModified(s,x1,y1,x2,y2);
+}
+
+#define SETPIXEL(x,y) \
+  memcpy(s->frameBuffer+(y)*rowstride+(x)*bpp,colour,bpp)
+
+void rfbDrawPixel(rfbScreenInfoPtr s,int x,int y,rfbPixel col)
+{
+  int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3;
+  char* colour=(char*)&col;
+
+  if(!rfbEndianTest)
+    colour += 4-bpp;
+  SETPIXEL(x,y);
+  rfbMarkRectAsModified(s,x,y,x+1,y+1);
+}
+
+void rfbDrawLine(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,rfbPixel col)
+{
+  int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3;
+  int i;
+  char* colour=(char*)&col;
+
+  if(!rfbEndianTest)
+    colour += 4-bpp;
+
+#define SWAPPOINTS { i=x1; x1=x2; x2=i; i=y1; y1=y2; y2=i; }
+  if(abs(x1-x2)<abs(y1-y2)) {
+    if(y1>y2)
+      SWAPPOINTS
+    for(i=y1;i<=y2;i++)
+      SETPIXEL(x1+(i-y1)*(x2-x1)/(y2-y1),i);
+    /* TODO: Maybe make this more intelligently? */
+    if(x2<x1) { i=x1; x1=x2; x2=i; }
+    rfbMarkRectAsModified(s,x1,y1,x2+1,y2+1);
+  } else {
+    if(x1>x2)
+      SWAPPOINTS
+    else if(x1==x2) {
+      rfbDrawPixel(s,x1,y1,col);
+      return;
+    }
+    for(i=x1;i<=x2;i++)
+      SETPIXEL(i,y1+(i-x1)*(y2-y1)/(x2-x1));
+    if(y2<y1) { i=y1; y1=y2; y2=i; }
+    rfbMarkRectAsModified(s,x1,y1,x2+1,y2+1);
+  }
+}
diff --git a/libvncserver/font.c b/libvncserver/font.c
new file mode 100755
index 0000000..423d415
--- /dev/null
+++ b/libvncserver/font.c
@@ -0,0 +1,192 @@
+#include <rfb/rfb.h>
+
+int rfbDrawChar(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+		 int x,int y,unsigned char c,rfbPixel col)
+{
+  int i,j,width,height;
+  unsigned char* data=font->data+font->metaData[c*5];
+  unsigned char d=*data;
+  int rowstride=rfbScreen->paddedWidthInBytes;
+  int bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8;
+  char *colour=(char*)&col;
+
+  if(!rfbEndianTest)
+    colour += 4-bpp;
+
+  width=font->metaData[c*5+1];
+  height=font->metaData[c*5+2];
+  x+=font->metaData[c*5+3];
+  y+=-font->metaData[c*5+4]-height+1;
+
+  for(j=0;j<height;j++) {
+    for(i=0;i<width;i++) {
+      if((i&7)==0) {
+	d=*data;
+	data++;
+      }
+      if(d&0x80)
+	memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp,colour,bpp);
+      d<<=1;
+    }
+    /* if((i&7)!=0) data++; */
+  }
+  return(width);
+}
+
+void rfbDrawString(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+		   int x,int y,const char* string,rfbPixel colour)
+{
+  while(*string) {
+    x+=rfbDrawChar(rfbScreen,font,x,y,*string,colour);
+    string++;
+  }
+}
+
+/* TODO: these two functions need to be more efficient */
+int rfbDrawCharWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+			int x,int y,unsigned char c,
+			int x1,int y1,int x2,int y2,
+			rfbPixel col,rfbPixel bcol)
+{
+  int i,j,width,height;
+  unsigned char* data=font->data+font->metaData[c*5];
+  unsigned char d;
+  int rowstride=rfbScreen->paddedWidthInBytes;
+  int bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8,extra_bytes=0;
+  char* colour=(char*)&col;
+  char* bcolour=(char*)&bcol;
+
+  if(!rfbEndianTest) {
+    colour+=4-bpp;
+    bcolour+=4-bpp;
+  }
+
+  width=font->metaData[c*5+1];
+  height=font->metaData[c*5+2];
+  x+=font->metaData[c*5+3];
+  y+=-font->metaData[c*5+4]-height+1;
+
+  /* after clipping, x2 will be count of bytes between rows,
+   * x1 start of i, y1 start of j, width and height will be adjusted. */
+  if(y1>y) { y1-=y; data+=(width+7)/8; height-=y1; y+=y1; } else y1=0;
+  if(x1>x) { x1-=x; data+=x1; width-=x1; x+=x1; extra_bytes+=x1/8; } else x1=0;
+  if(y2<y+height) height-=y+height-y2;
+  if(x2<x+width) { extra_bytes+=(x1+width)/8-(x+width-x2+7)/8; width-=x+width-x2; }
+
+  d=*data;
+  for(j=y1;j<height;j++) {
+    if((x1&7)!=0)
+      d=data[-1]; /* TODO: check if in this case extra_bytes is correct! */
+    for(i=x1;i<width;i++) {
+      if((i&7)==0) {
+	d=*data;
+	data++;
+      }
+      /* if(x+i>=x1 && x+i<x2 && y+j>=y1 && y+j<y2) */ {
+	 if(d&0x80) {
+	   memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp,
+		  colour,bpp);
+	 } else if(bcol!=col) {
+	   memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp,
+		  bcolour,bpp);
+	 }
+      }
+      d<<=1;
+    }
+    /* if((i&7)==0) data++; */
+    data += extra_bytes;
+  }
+  return(width);
+}
+
+void rfbDrawStringWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+			   int x,int y,const char* string,
+			   int x1,int y1,int x2,int y2,
+			   rfbPixel colour,rfbPixel backColour)
+{
+  while(*string) {
+    x+=rfbDrawCharWithClip(rfbScreen,font,x,y,*string,x1,y1,x2,y2,
+			   colour,backColour);
+    string++;
+  }
+}
+
+int rfbWidthOfString(rfbFontDataPtr font,const char* string)
+{
+  int i=0;
+  while(*string) {
+    i+=font->metaData[*string*5+1];
+    string++;
+  }
+  return(i);
+}
+
+int rfbWidthOfChar(rfbFontDataPtr font,unsigned char c)
+{
+  return(font->metaData[c*5+1]+font->metaData[c*5+3]);
+}
+
+void rfbFontBBox(rfbFontDataPtr font,unsigned char c,int* x1,int* y1,int* x2,int* y2)
+{
+  *x1+=font->metaData[c*5+3];
+  *y1+=-font->metaData[c*5+4]-font->metaData[c*5+2]+1;
+  *x2=*x1+font->metaData[c*5+1];
+  *y2=*y1+font->metaData[c*5+2];
+}
+
+#ifndef INT_MAX
+#define INT_MAX 0x7fffffff
+#endif
+
+void rfbWholeFontBBox(rfbFontDataPtr font,
+		      int *x1, int *y1, int *x2, int *y2)
+{
+   int i;
+   int* m=font->metaData;
+   
+   (*x1)=(*y1)=INT_MAX; (*x2)=(*y2)=-INT_MAX+1;
+   for(i=0;i<256;i++) {
+      if(m[i*5+1]-m[i*5+3]>(*x2))
+	(*x2)=m[i*5+1]-m[i*5+3];
+      if(-m[i*5+2]+m[i*5+4]<(*y1))
+	(*y1)=-m[i*5+2]+m[i*5+4];
+      if(m[i*5+3]<(*x1))
+	(*x1)=m[i*5+3];
+      if(-m[i*5+4]>(*y2))
+	(*y2)=-m[i*5+4];
+   }
+}
+
+rfbFontDataPtr rfbLoadConsoleFont(char *filename)
+{
+  FILE *f=fopen(filename,"rb");
+  rfbFontDataPtr p;
+  int i;
+
+  if(!f) return(0);
+
+  p=(rfbFontDataPtr)malloc(sizeof(rfbFontData));
+  p->data=(unsigned char*)malloc(4096);
+  if(1!=fread(p->data,4096,1,f)) {
+    free(p->data);
+    free(p);
+    return(0);
+  }
+  fclose(f);
+  p->metaData=(int*)malloc(256*5*sizeof(int));
+  for(i=0;i<256;i++) {
+    p->metaData[i*5+0]=i*16; /* offset */
+    p->metaData[i*5+1]=8; /* width */
+    p->metaData[i*5+2]=16; /* height */
+    p->metaData[i*5+3]=0; /* xhot */
+    p->metaData[i*5+4]=0; /* yhot */
+  }
+  return(p);
+}
+
+void rfbFreeFont(rfbFontDataPtr f)
+{
+  free(f->data);
+  free(f->metaData);
+  free(f);
+}
diff --git a/libvncserver/hextile.c b/libvncserver/hextile.c
new file mode 100755
index 0000000..e13021b
--- /dev/null
+++ b/libvncserver/hextile.c
@@ -0,0 +1,346 @@
+/*
+ * hextile.c
+ *
+ * Routines to implement Hextile Encoding
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+static rfbBool sendHextiles8(rfbClientPtr cl, int x, int y, int w, int h);
+static rfbBool sendHextiles16(rfbClientPtr cl, int x, int y, int w, int h);
+static rfbBool sendHextiles32(rfbClientPtr cl, int x, int y, int w, int h);
+
+
+/*
+ * rfbSendRectEncodingHextile - send a rectangle using hextile encoding.
+ */
+
+rfbBool
+rfbSendRectEncodingHextile(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    rfbFramebufferUpdateRectHeader rect;
+
+    if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    rect.r.x = Swap16IfLE(x);
+    rect.r.y = Swap16IfLE(y);
+    rect.r.w = Swap16IfLE(w);
+    rect.r.h = Swap16IfLE(h);
+    rect.encoding = Swap32IfLE(rfbEncodingHextile);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+           sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    cl->rfbRectanglesSent[rfbEncodingHextile]++;
+    cl->rfbBytesSent[rfbEncodingHextile] += sz_rfbFramebufferUpdateRectHeader;
+
+    switch (cl->format.bitsPerPixel) {
+    case 8:
+        return sendHextiles8(cl, x, y, w, h);
+    case 16:
+        return sendHextiles16(cl, x, y, w, h);
+    case 32:
+        return sendHextiles32(cl, x, y, w, h);
+    }
+
+    rfbLog("rfbSendRectEncodingHextile: bpp %d?\n", cl->format.bitsPerPixel);
+    return FALSE;
+}
+
+
+#define PUT_PIXEL8(pix) (cl->updateBuf[cl->ublen++] = (pix))
+
+#define PUT_PIXEL16(pix) (cl->updateBuf[cl->ublen++] = ((char*)&(pix))[0], \
+                          cl->updateBuf[cl->ublen++] = ((char*)&(pix))[1])
+
+#define PUT_PIXEL32(pix) (cl->updateBuf[cl->ublen++] = ((char*)&(pix))[0], \
+                          cl->updateBuf[cl->ublen++] = ((char*)&(pix))[1], \
+                          cl->updateBuf[cl->ublen++] = ((char*)&(pix))[2], \
+                          cl->updateBuf[cl->ublen++] = ((char*)&(pix))[3])
+
+
+#define DEFINE_SEND_HEXTILES(bpp)                                               \
+                                                                                \
+                                                                                \
+static rfbBool subrectEncode##bpp(rfbClientPtr cli, uint##bpp##_t *data, int w, int h, \
+                               uint##bpp##_t bg, uint##bpp##_t fg, rfbBool mono);          \
+static void testColours##bpp(uint##bpp##_t *data, int size, rfbBool *mono,             \
+                             rfbBool *solid, uint##bpp##_t *bg, uint##bpp##_t *fg);        \
+                                                                                \
+                                                                                \
+/*                                                                              \
+ * rfbSendHextiles                                                              \
+ */                                                                             \
+                                                                                \
+static rfbBool                                                                     \
+sendHextiles##bpp(cl, rx, ry, rw, rh)                                           \
+    rfbClientPtr cl;                                                            \
+    int rx, ry, rw, rh;                                                         \
+{                                                                               \
+    int x, y, w, h;                                                             \
+    int startUblen;                                                             \
+    char *fbptr;                                                                \
+    uint##bpp##_t bg = 0, fg = 0, newBg, newFg;                                     \
+    rfbBool mono, solid;                                                           \
+    rfbBool validBg = FALSE;                                                       \
+    rfbBool validFg = FALSE;                                                       \
+    uint##bpp##_t clientPixelData[16*16*(bpp/8)];                                   \
+                                                                                \
+    for (y = ry; y < ry+rh; y += 16) {                                          \
+        for (x = rx; x < rx+rw; x += 16) {                                      \
+            w = h = 16;                                                         \
+            if (rx+rw - x < 16)                                                 \
+                w = rx+rw - x;                                                  \
+            if (ry+rh - y < 16)                                                 \
+                h = ry+rh - y;                                                  \
+                                                                                \
+            if ((cl->ublen + 1 + (2 + 16 * 16) * (bpp/8)) >                     \
+                UPDATE_BUF_SIZE) {                                              \
+                if (!rfbSendUpdateBuf(cl))                                      \
+                    return FALSE;                                               \
+            }                                                                   \
+                                                                                \
+            fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y)   \
+                     + (x * (cl->screen->bitsPerPixel / 8)));                     \
+                                                                                \
+            (*cl->translateFn)(cl->translateLookupTable, &(cl->screen->rfbServerFormat),      \
+                               &cl->format, fbptr, (char *)clientPixelData,     \
+                               cl->screen->paddedWidthInBytes, w, h);             \
+                                                                                \
+            startUblen = cl->ublen;                                             \
+            cl->updateBuf[startUblen] = 0;                                      \
+            cl->ublen++;                                                        \
+                                                                                \
+            testColours##bpp(clientPixelData, w * h,                            \
+                             &mono, &solid, &newBg, &newFg);                    \
+                                                                                \
+            if (!validBg || (newBg != bg)) {                                    \
+                validBg = TRUE;                                                 \
+                bg = newBg;                                                     \
+                cl->updateBuf[startUblen] |= rfbHextileBackgroundSpecified;     \
+                PUT_PIXEL##bpp(bg);                                             \
+            }                                                                   \
+                                                                                \
+            if (solid) {                                                        \
+                cl->rfbBytesSent[rfbEncodingHextile] += cl->ublen - startUblen; \
+                continue;                                                       \
+            }                                                                   \
+                                                                                \
+            cl->updateBuf[startUblen] |= rfbHextileAnySubrects;                 \
+                                                                                \
+            if (mono) {                                                         \
+                if (!validFg || (newFg != fg)) {                                \
+                    validFg = TRUE;                                             \
+                    fg = newFg;                                                 \
+                    cl->updateBuf[startUblen] |= rfbHextileForegroundSpecified; \
+                    PUT_PIXEL##bpp(fg);                                         \
+                }                                                               \
+            } else {                                                            \
+                validFg = FALSE;                                                \
+                cl->updateBuf[startUblen] |= rfbHextileSubrectsColoured;        \
+            }                                                                   \
+                                                                                \
+            if (!subrectEncode##bpp(cl, clientPixelData, w, h, bg, fg, mono)) { \
+                /* encoding was too large, use raw */                           \
+                validBg = FALSE;                                                \
+                validFg = FALSE;                                                \
+                cl->ublen = startUblen;                                         \
+                cl->updateBuf[cl->ublen++] = rfbHextileRaw;                     \
+                (*cl->translateFn)(cl->translateLookupTable,                    \
+                                   &(cl->screen->rfbServerFormat), &cl->format, fbptr,        \
+                                   (char *)clientPixelData,                     \
+                                   cl->screen->paddedWidthInBytes, w, h);         \
+                                                                                \
+                memcpy(&cl->updateBuf[cl->ublen], (char *)clientPixelData,      \
+                       w * h * (bpp/8));                                        \
+                                                                                \
+                cl->ublen += w * h * (bpp/8);                                   \
+            }                                                                   \
+                                                                                \
+            cl->rfbBytesSent[rfbEncodingHextile] += cl->ublen - startUblen;     \
+        }                                                                       \
+    }                                                                           \
+                                                                                \
+    return TRUE;                                                                \
+}                                                                               \
+                                                                                \
+                                                                                \
+static rfbBool                                                                     \
+subrectEncode##bpp(rfbClientPtr cl, uint##bpp##_t *data, int w, int h,              \
+                   uint##bpp##_t bg, uint##bpp##_t fg, rfbBool mono)                       \
+{                                                                               \
+    uint##bpp##_t cl2;                                                              \
+    int x,y;                                                                    \
+    int i,j;                                                                    \
+    int hx=0,hy,vx=0,vy;                                                        \
+    int hyflag;                                                                 \
+    uint##bpp##_t *seg;                                                             \
+    uint##bpp##_t *line;                                                            \
+    int hw,hh,vw,vh;                                                            \
+    int thex,they,thew,theh;                                                    \
+    int numsubs = 0;                                                            \
+    int newLen;                                                                 \
+    int nSubrectsUblen;                                                         \
+                                                                                \
+    nSubrectsUblen = cl->ublen;                                                 \
+    cl->ublen++;                                                                \
+                                                                                \
+    for (y=0; y<h; y++) {                                                       \
+        line = data+(y*w);                                                      \
+        for (x=0; x<w; x++) {                                                   \
+            if (line[x] != bg) {                                                \
+                cl2 = line[x];                                                  \
+                hy = y-1;                                                       \
+                hyflag = 1;                                                     \
+                for (j=y; j<h; j++) {                                           \
+                    seg = data+(j*w);                                           \
+                    if (seg[x] != cl2) {break;}                                 \
+                    i = x;                                                      \
+                    while ((seg[i] == cl2) && (i < w)) i += 1;                  \
+                    i -= 1;                                                     \
+                    if (j == y) vx = hx = i;                                    \
+                    if (i < vx) vx = i;                                         \
+                    if ((hyflag > 0) && (i >= hx)) {                            \
+                        hy += 1;                                                \
+                    } else {                                                    \
+                        hyflag = 0;                                             \
+                    }                                                           \
+                }                                                               \
+                vy = j-1;                                                       \
+                                                                                \
+                /* We now have two possible subrects: (x,y,hx,hy) and           \
+                 * (x,y,vx,vy).  We'll choose the bigger of the two.            \
+                 */                                                             \
+                hw = hx-x+1;                                                    \
+                hh = hy-y+1;                                                    \
+                vw = vx-x+1;                                                    \
+                vh = vy-y+1;                                                    \
+                                                                                \
+                thex = x;                                                       \
+                they = y;                                                       \
+                                                                                \
+                if ((hw*hh) > (vw*vh)) {                                        \
+                    thew = hw;                                                  \
+                    theh = hh;                                                  \
+                } else {                                                        \
+                    thew = vw;                                                  \
+                    theh = vh;                                                  \
+                }                                                               \
+                                                                                \
+                if (mono) {                                                     \
+                    newLen = cl->ublen - nSubrectsUblen + 2;                    \
+                } else {                                                        \
+                    newLen = cl->ublen - nSubrectsUblen + bpp/8 + 2;            \
+                }                                                               \
+                                                                                \
+                if (newLen > (w * h * (bpp/8)))                                 \
+                    return FALSE;                                               \
+                                                                                \
+                numsubs += 1;                                                   \
+                                                                                \
+                if (!mono) PUT_PIXEL##bpp(cl2);                                 \
+                                                                                \
+                cl->updateBuf[cl->ublen++] = rfbHextilePackXY(thex,they);       \
+                cl->updateBuf[cl->ublen++] = rfbHextilePackWH(thew,theh);       \
+                                                                                \
+                /*                                                              \
+                 * Now mark the subrect as done.                                \
+                 */                                                             \
+                for (j=they; j < (they+theh); j++) {                            \
+                    for (i=thex; i < (thex+thew); i++) {                        \
+                        data[j*w+i] = bg;                                       \
+                    }                                                           \
+                }                                                               \
+            }                                                                   \
+        }                                                                       \
+    }                                                                           \
+                                                                                \
+    cl->updateBuf[nSubrectsUblen] = numsubs;                                    \
+                                                                                \
+    return TRUE;                                                                \
+}                                                                               \
+                                                                                \
+                                                                                \
+/*                                                                              \
+ * testColours() tests if there are one (solid), two (mono) or more             \
+ * colours in a tile and gets a reasonable guess at the best background         \
+ * pixel, and the foreground pixel for mono.                                    \
+ */                                                                             \
+                                                                                \
+static void                                                                     \
+testColours##bpp(data,size,mono,solid,bg,fg)                                    \
+    uint##bpp##_t *data;                                                            \
+    int size;                                                                   \
+    rfbBool *mono;                                                                 \
+    rfbBool *solid;                                                                \
+    uint##bpp##_t *bg;                                                              \
+    uint##bpp##_t *fg;                                                              \
+{                                                                               \
+    uint##bpp##_t colour1 = 0, colour2 = 0;                                         \
+    int n1 = 0, n2 = 0;                                                         \
+    *mono = TRUE;                                                               \
+    *solid = TRUE;                                                              \
+                                                                                \
+    for (; size > 0; size--, data++) {                                          \
+                                                                                \
+        if (n1 == 0)                                                            \
+            colour1 = *data;                                                    \
+                                                                                \
+        if (*data == colour1) {                                                 \
+            n1++;                                                               \
+            continue;                                                           \
+        }                                                                       \
+                                                                                \
+        if (n2 == 0) {                                                          \
+            *solid = FALSE;                                                     \
+            colour2 = *data;                                                    \
+        }                                                                       \
+                                                                                \
+        if (*data == colour2) {                                                 \
+            n2++;                                                               \
+            continue;                                                           \
+        }                                                                       \
+                                                                                \
+        *mono = FALSE;                                                          \
+        break;                                                                  \
+    }                                                                           \
+                                                                                \
+    if (n1 > n2) {                                                              \
+        *bg = colour1;                                                          \
+        *fg = colour2;                                                          \
+    } else {                                                                    \
+        *bg = colour2;                                                          \
+        *fg = colour1;                                                          \
+    }                                                                           \
+}
+
+DEFINE_SEND_HEXTILES(8)
+DEFINE_SEND_HEXTILES(16)
+DEFINE_SEND_HEXTILES(32)
diff --git a/libvncserver/httpd.c b/libvncserver/httpd.c
new file mode 100755
index 0000000..85c8e44
--- /dev/null
+++ b/libvncserver/httpd.c
@@ -0,0 +1,579 @@
+/*
+ * httpd.c - a simple HTTP server
+ */
+
+/*
+ *  Copyright (C) 2002 RealVNC Ltd.
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+#include <ctype.h>
+#ifdef LIBVNCSERVER_HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#include <errno.h>
+
+#ifdef WIN32
+#include <winsock.h>
+#define close closesocket
+#else
+#ifdef LIBVNCSERVER_HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#endif
+#include <pwd.h>
+#endif
+
+#ifdef USE_LIBWRAP
+#include <tcpd.h>
+#endif
+
+#define NOT_FOUND_STR "HTTP/1.0 404 Not found\r\n\r\n" \
+    "<HEAD><TITLE>File Not Found</TITLE></HEAD>\n" \
+    "<BODY><H1>File Not Found</H1></BODY>\n"
+
+#define INVALID_REQUEST_STR "HTTP/1.0 400 Invalid Request\r\n\r\n" \
+    "<HEAD><TITLE>Invalid Request</TITLE></HEAD>\n" \
+    "<BODY><H1>Invalid request</H1></BODY>\n"
+
+#define OK_STR "HTTP/1.0 200 OK\nContent-Type: text/html\r\n\r\n"
+
+static void httpProcessInput();
+static rfbBool compareAndSkip(char **ptr, const char *str);
+static rfbBool parseParams(const char *request, char *result, int max_bytes);
+static rfbBool validateString(char *str);
+
+#define BUF_SIZE 32768
+
+static char buf[BUF_SIZE];
+static size_t buf_filled=0;
+
+/*
+ * httpInitSockets sets up the TCP socket to listen for HTTP connections.
+ */
+
+void
+httpInitSockets(rfbScreenInfoPtr rfbScreen)
+{
+    if (rfbScreen->httpInitDone)
+	return;
+
+    rfbScreen->httpInitDone = TRUE;
+
+    if (!rfbScreen->httpDir)
+	return;
+
+    if (rfbScreen->httpPort == 0) {
+	rfbScreen->httpPort = rfbScreen->rfbPort-100;
+    }
+
+    rfbLog("Listening for HTTP connections on TCP port %d\n", rfbScreen->httpPort);
+
+    rfbLog("  URL http://%s:%d\n",rfbScreen->rfbThisHost,rfbScreen->httpPort);
+
+    if ((rfbScreen->httpListenSock = ListenOnTCPPort(rfbScreen->httpPort)) < 0) {
+	rfbLogPerror("ListenOnTCPPort");
+	return;
+    }
+
+   /*AddEnabledDevice(httpListenSock);*/
+}
+
+
+/*
+ * httpCheckFds is called from ProcessInputEvents to check for input on the
+ * HTTP socket(s).  If there is input to process, httpProcessInput is called.
+ */
+
+void
+httpCheckFds(rfbScreenInfoPtr rfbScreen)
+{
+    int nfds;
+    fd_set fds;
+    struct timeval tv;
+    struct sockaddr_in addr;
+    size_t addrlen = sizeof(addr);
+
+    if (!rfbScreen->httpDir)
+	return;
+
+    FD_ZERO(&fds);
+    FD_SET(rfbScreen->httpListenSock, &fds);
+    if (rfbScreen->httpSock >= 0) {
+	FD_SET(rfbScreen->httpSock, &fds);
+    }
+    tv.tv_sec = 0;
+    tv.tv_usec = 0;
+    nfds = select(max(rfbScreen->httpSock,rfbScreen->httpListenSock) + 1, &fds, NULL, NULL, &tv);
+    if (nfds == 0) {
+	return;
+    }
+    if (nfds < 0) {
+#ifdef WIN32
+		errno = WSAGetLastError();
+#endif
+	if (errno != EINTR)
+		rfbLogPerror("httpCheckFds: select");
+	return;
+    }
+
+    if ((rfbScreen->httpSock >= 0) && FD_ISSET(rfbScreen->httpSock, &fds)) {
+	httpProcessInput(rfbScreen);
+    }
+
+    if (FD_ISSET(rfbScreen->httpListenSock, &fds)) {
+        int flags;
+	if (rfbScreen->httpSock >= 0) close(rfbScreen->httpSock);
+
+	if ((rfbScreen->httpSock = accept(rfbScreen->httpListenSock,
+			       (struct sockaddr *)&addr, &addrlen)) < 0) {
+	    rfbLogPerror("httpCheckFds: accept");
+	    return;
+	}
+#ifdef USE_LIBWRAP
+	if(!hosts_ctl("vnc",STRING_UNKNOWN,inet_ntoa(addr.sin_addr),
+		      STRING_UNKNOWN)) {
+	  rfbLog("Rejected HTTP connection from client %s\n",
+		 inet_ntoa(addr.sin_addr));
+#else
+	flags = fcntl(rfbScreen->httpSock, F_GETFL);
+
+	if (flags < 0 || fcntl(rfbScreen->httpSock, F_SETFL, flags | O_NONBLOCK) == -1) {
+	    rfbLogPerror("httpCheckFds: fcntl");
+#endif
+	    close(rfbScreen->httpSock);
+	    rfbScreen->httpSock = -1;
+	    return;
+	}
+	flags=fcntl(rfbScreen->httpSock,F_GETFL);
+	if(flags==-1 ||
+	   fcntl(rfbScreen->httpSock,F_SETFL,flags|O_NONBLOCK)==-1) {
+	  rfbLogPerror("httpCheckFds: fcntl");
+	  close(rfbScreen->httpSock);
+	  rfbScreen->httpSock=-1;
+	  return;
+	}
+
+	/*AddEnabledDevice(httpSock);*/
+    }
+}
+
+
+static void
+httpCloseSock(rfbScreenInfoPtr rfbScreen)
+{
+    close(rfbScreen->httpSock);
+    rfbScreen->httpSock = -1;
+    buf_filled = 0;
+}
+
+static rfbClientRec cl;
+
+/*
+ * httpProcessInput is called when input is received on the HTTP socket.
+ */
+
+static void
+httpProcessInput(rfbScreenInfoPtr rfbScreen)
+{
+    struct sockaddr_in addr;
+    size_t addrlen = sizeof(addr);
+    char fullFname[512];
+    char params[1024];
+    char *ptr;
+    char *fname;
+    unsigned int maxFnameLen;
+    FILE* fd;
+    rfbBool performSubstitutions = FALSE;
+    char str[256+32];
+#ifndef WIN32
+    char* user=getenv("USER");
+#endif
+   
+    cl.sock=rfbScreen->httpSock;
+
+    if (strlen(rfbScreen->httpDir) > 255) {
+	rfbErr("-httpd directory too long\n");
+	httpCloseSock(rfbScreen);
+	return;
+    }
+    strcpy(fullFname, rfbScreen->httpDir);
+    fname = &fullFname[strlen(fullFname)];
+    maxFnameLen = 511 - strlen(fullFname);
+
+    buf_filled=0;
+
+    /* Read data from the HTTP client until we get a complete request. */
+    while (1) {
+	ssize_t got;
+
+        if (buf_filled > sizeof (buf)) {
+	    rfbErr("httpProcessInput: HTTP request is too long\n");
+	    httpCloseSock(rfbScreen);
+	    return;
+	}
+
+	got = read (rfbScreen->httpSock, buf + buf_filled,
+			    sizeof (buf) - buf_filled - 1);
+
+	if (got <= 0) {
+	    if (got == 0) {
+		rfbErr("httpd: premature connection close\n");
+	    } else {
+		if (errno == EAGAIN) {
+		    return;
+		}
+		rfbLogPerror("httpProcessInput: read");
+	    }
+	    httpCloseSock(rfbScreen);
+	    return;
+	}
+
+	buf_filled += got;
+	buf[buf_filled] = '\0';
+
+	/* Is it complete yet (is there a blank line)? */
+	if (strstr (buf, "\r\r") || strstr (buf, "\n\n") ||
+	    strstr (buf, "\r\n\r\n") || strstr (buf, "\n\r\n\r"))
+	    break;
+    }
+
+
+    /* Process the request. */
+    if(rfbScreen->httpEnableProxyConnect) {
+	const static char* PROXY_OK_STR = "HTTP/1.0 200 OK\r\nContent-Type: octet-stream\r\nPragma: no-cache\r\n\r\n";
+	if(!strncmp(buf, "CONNECT ", 8)) {
+	    if(atoi(strchr(buf, ':')+1)!=rfbScreen->rfbPort) {
+		rfbErr("httpd: CONNECT format invalid.\n");
+		WriteExact(&cl,INVALID_REQUEST_STR, strlen(INVALID_REQUEST_STR));
+		httpCloseSock(rfbScreen);
+		return;
+	    }
+	    /* proxy connection */
+	    rfbLog("httpd: client asked for CONNECT\n");
+	    WriteExact(&cl,PROXY_OK_STR,strlen(PROXY_OK_STR));
+	    rfbNewClientConnection(rfbScreen,rfbScreen->httpSock);
+	    rfbScreen->httpSock = -1;
+	    return;
+	}
+	if (!strncmp(buf, "GET ",4) && !strncmp(strchr(buf,'/'),"/proxied.connection HTTP/1.", 27)) {
+	    /* proxy connection */
+	    rfbLog("httpd: client asked for /proxied.connection\n");
+	    WriteExact(&cl,PROXY_OK_STR,strlen(PROXY_OK_STR));
+	    rfbNewClientConnection(rfbScreen,rfbScreen->httpSock);
+	    rfbScreen->httpSock = -1;
+	    return;
+	}	   
+    }
+
+    if (strncmp(buf, "GET ", 4)) {
+	rfbErr("httpd: no GET line\n");
+	httpCloseSock(rfbScreen);
+	return;
+    } else {
+	/* Only use the first line. */
+	buf[strcspn(buf, "\n\r")] = '\0';
+    }
+
+    if (strlen(buf) > maxFnameLen) {
+	rfbErr("httpd: GET line too long\n");
+	httpCloseSock(rfbScreen);
+	return;
+    }
+
+    if (sscanf(buf, "GET %s HTTP/1.0", fname) != 1) {
+	rfbErr("httpd: couldn't parse GET line\n");
+	httpCloseSock(rfbScreen);
+	return;
+    }
+
+    if (fname[0] != '/') {
+	rfbErr("httpd: filename didn't begin with '/'\n");
+	WriteExact(&cl, NOT_FOUND_STR, strlen(NOT_FOUND_STR));
+	httpCloseSock(rfbScreen);
+	return;
+    }
+
+    if (strchr(fname+1, '/') != NULL) {
+	rfbErr("httpd: asking for file in other directory\n");
+	WriteExact(&cl, NOT_FOUND_STR, strlen(NOT_FOUND_STR));
+	httpCloseSock(rfbScreen);
+	return;
+    }
+
+    getpeername(rfbScreen->httpSock, (struct sockaddr *)&addr, &addrlen);
+    rfbLog("httpd: get '%s' for %s\n", fname+1,
+	   inet_ntoa(addr.sin_addr));
+
+    /* Extract parameters from the URL string if necessary */
+
+    params[0] = '\0';
+    ptr = strchr(fname, '?');
+    if (ptr != NULL) {
+       *ptr = '\0';
+       if (!parseParams(&ptr[1], params, 1024)) {
+           params[0] = '\0';
+           rfbErr("httpd: bad parameters in the URL\n");
+       }
+    }
+
+
+    /* If we were asked for '/', actually read the file index.vnc */
+
+    if (strcmp(fname, "/") == 0) {
+	strcpy(fname, "/index.vnc");
+	rfbLog("httpd: defaulting to '%s'\n", fname+1);
+    }
+
+    /* Substitutions are performed on files ending .vnc */
+
+    if (strlen(fname) >= 4 && strcmp(&fname[strlen(fname)-4], ".vnc") == 0) {
+	performSubstitutions = TRUE;
+    }
+
+    /* Open the file */
+
+    if ((fd = fopen(fullFname, "r")) == 0) {
+        rfbLogPerror("httpProcessInput: open");
+        WriteExact(&cl, NOT_FOUND_STR, strlen(NOT_FOUND_STR));
+        httpCloseSock(rfbScreen);
+        return;
+    }
+
+    WriteExact(&cl, OK_STR, strlen(OK_STR));
+
+    while (1) {
+	int n = fread(buf, 1, BUF_SIZE-1, fd);
+	if (n < 0) {
+	    rfbLogPerror("httpProcessInput: read");
+	    fclose(fd);
+	    httpCloseSock(rfbScreen);
+	    return;
+	}
+
+	if (n == 0)
+	    break;
+
+	if (performSubstitutions) {
+
+	    /* Substitute $WIDTH, $HEIGHT, etc with the appropriate values.
+	       This won't quite work properly if the .vnc file is longer than
+	       BUF_SIZE, but it's reasonable to assume that .vnc files will
+	       always be short. */
+
+	    char *ptr = buf;
+	    char *dollar;
+	    buf[n] = 0; /* make sure it's null-terminated */
+
+	    while ((dollar = strchr(ptr, '$'))!=NULL) {
+		WriteExact(&cl, ptr, (dollar - ptr));
+
+		ptr = dollar;
+
+		if (compareAndSkip(&ptr, "$WIDTH")) {
+
+		    sprintf(str, "%d", rfbScreen->width);
+		    WriteExact(&cl, str, strlen(str));
+
+		} else if (compareAndSkip(&ptr, "$HEIGHT")) {
+
+		    sprintf(str, "%d", rfbScreen->height);
+		    WriteExact(&cl, str, strlen(str));
+
+		} else if (compareAndSkip(&ptr, "$APPLETWIDTH")) {
+
+		    sprintf(str, "%d", rfbScreen->width);
+		    WriteExact(&cl, str, strlen(str));
+
+		} else if (compareAndSkip(&ptr, "$APPLETHEIGHT")) {
+
+		    sprintf(str, "%d", rfbScreen->height + 32);
+		    WriteExact(&cl, str, strlen(str));
+
+		} else if (compareAndSkip(&ptr, "$PORT")) {
+
+		    sprintf(str, "%d", rfbScreen->rfbPort);
+		    WriteExact(&cl, str, strlen(str));
+
+		} else if (compareAndSkip(&ptr, "$DESKTOP")) {
+
+		    WriteExact(&cl, rfbScreen->desktopName, strlen(rfbScreen->desktopName));
+
+		} else if (compareAndSkip(&ptr, "$DISPLAY")) {
+
+		    sprintf(str, "%s:%d", rfbScreen->rfbThisHost, rfbScreen->rfbPort-5900);
+		    WriteExact(&cl, str, strlen(str));
+
+		} else if (compareAndSkip(&ptr, "$USER")) {
+#ifndef WIN32
+		    if (user) {
+			WriteExact(&cl, user,
+				   strlen(user));
+		    } else
+#endif
+			WriteExact(&cl, "?", 1);
+		} else if (compareAndSkip(&ptr, "$PARAMS")) {
+		    if (params[0] != '\0')
+			WriteExact(&cl, params, strlen(params));
+		} else {
+		    if (!compareAndSkip(&ptr, "$$"))
+			ptr++;
+
+		    if (WriteExact(&cl, "$", 1) < 0) {
+			fclose(fd);
+			httpCloseSock(rfbScreen);
+			return;
+		    }
+		}
+	    }
+	    if (WriteExact(&cl, ptr, (&buf[n] - ptr)) < 0)
+		break;
+
+	} else {
+
+	    /* For files not ending .vnc, just write out the buffer */
+
+	    if (WriteExact(&cl, buf, n) < 0)
+		break;
+	}
+    }
+
+    fclose(fd);
+    httpCloseSock(rfbScreen);
+}
+
+
+static rfbBool
+compareAndSkip(char **ptr, const char *str)
+{
+    if (strncmp(*ptr, str, strlen(str)) == 0) {
+	*ptr += strlen(str);
+	return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*
+ * Parse the request tail after the '?' character, and format a sequence
+ * of <param> tags for inclusion into an HTML page with embedded applet.
+ */
+
+static rfbBool
+parseParams(const char *request, char *result, int max_bytes)
+{
+    char param_request[128];
+    char param_formatted[196];
+    const char *tail;
+    char *delim_ptr;
+    char *value_str;
+    int cur_bytes, len;
+
+    result[0] = '\0';
+    cur_bytes = 0;
+
+    tail = request;
+    for (;;) {
+	/* Copy individual "name=value" string into a buffer */
+	delim_ptr = strchr((char *)tail, '&');
+	if (delim_ptr == NULL) {
+	    if (strlen(tail) >= sizeof(param_request)) {
+		return FALSE;
+	    }
+	    strcpy(param_request, tail);
+	} else {
+	    len = delim_ptr - tail;
+	    if (len >= sizeof(param_request)) {
+		return FALSE;
+	    }
+	    memcpy(param_request, tail, len);
+	    param_request[len] = '\0';
+	}
+
+	/* Split the request into parameter name and value */
+	value_str = strchr(&param_request[1], '=');
+	if (value_str == NULL) {
+	    return FALSE;
+	}
+	*value_str++ = '\0';
+	if (strlen(value_str) == 0) {
+	    return FALSE;
+	}
+
+	/* Validate both parameter name and value */
+	if (!validateString(param_request) || !validateString(value_str)) {
+	    return FALSE;
+	}
+
+	/* Prepare HTML-formatted representation of the name=value pair */
+	len = sprintf(param_formatted,
+		      "<PARAM NAME=\"%s\" VALUE=\"%s\">\n",
+		      param_request, value_str);
+	if (cur_bytes + len + 1 > max_bytes) {
+	    return FALSE;
+	}
+	strcat(result, param_formatted);
+	cur_bytes += len;
+
+	/* Go to the next parameter */
+	if (delim_ptr == NULL) {
+	    break;
+	}
+	tail = delim_ptr + 1;
+    }
+    return TRUE;
+}
+
+/*
+ * Check if the string consists only of alphanumeric characters, '+'
+ * signs, underscores, and dots. Replace all '+' signs with spaces.
+ */
+
+static rfbBool
+validateString(char *str)
+{
+    char *ptr;
+
+    for (ptr = str; *ptr != '\0'; ptr++) {
+	if (!isalnum(*ptr) && *ptr != '_' && *ptr != '.') {
+	    if (*ptr == '+') {
+		*ptr = ' ';
+	    } else {
+		return FALSE;
+	    }
+	}
+    }
+    return TRUE;
+}
+
diff --git a/libvncserver/main.c b/libvncserver/main.c
new file mode 100644
index 0000000..488f09d
--- /dev/null
+++ b/libvncserver/main.c
@@ -0,0 +1,851 @@
+/*
+ *  This file is called main.c, because it contains most of the new functions
+ *  for use with LibVNCServer.
+ *
+ *  LibVNCServer (C) 2001 Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
+ *  Original OSXvnc (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  see GPL (latest version) for full details
+ */
+
+#include <rfb/rfb.h>
+#include <rfb/rfbregion.h>
+
+#include <stdarg.h>
+#include <errno.h>
+
+#ifndef false
+#define false 0
+#define true -1
+#endif
+
+#ifdef LIBVNCSERVER_HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifndef WIN32
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <unistd.h>
+#endif
+
+#include <signal.h>
+#include <time.h>
+
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+MUTEX(logMutex);
+#endif
+
+int rfbEnableLogging=1;
+
+#ifdef LIBVNCSERVER_WORDS_BIGENDIAN
+char rfbEndianTest = 0;
+#else
+char rfbEndianTest = -1;
+#endif
+
+/* from rfbserver.c */
+void rfbIncrClientRef(rfbClientPtr cl);
+void rfbDecrClientRef(rfbClientPtr cl);
+
+void rfbLogEnable(int enabled) {
+  rfbEnableLogging=enabled;
+}
+
+/*
+ * rfbLog prints a time-stamped message to the log file (stderr).
+ */
+
+void
+rfbDefaultLog(const char *format, ...)
+{
+    va_list args;
+    char buf[256];
+    time_t log_clock;
+
+    if(!rfbEnableLogging)
+      return;
+
+    LOCK(logMutex);
+    va_start(args, format);
+
+    time(&log_clock);
+    strftime(buf, 255, "%d/%m/%Y %X ", localtime(&log_clock));
+    fprintf(stderr,buf);
+
+    vfprintf(stderr, format, args);
+    fflush(stderr);
+
+    va_end(args);
+    UNLOCK(logMutex);
+}
+
+rfbLogProc rfbLog=rfbDefaultLog;
+rfbLogProc rfbErr=rfbDefaultLog;
+
+void rfbLogPerror(const char *str)
+{
+    rfbErr("%s: %s\n", str, strerror(errno));
+}
+
+void rfbScheduleCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy)
+{  
+   rfbClientIteratorPtr iterator;
+   rfbClientPtr cl;
+
+   rfbUndrawCursor(rfbScreen);
+  
+   iterator=rfbGetClientIterator(rfbScreen);
+   while((cl=rfbClientIteratorNext(iterator))) {
+     LOCK(cl->updateMutex);
+     if(cl->useCopyRect) {
+       sraRegionPtr modifiedRegionBackup;
+       if(!sraRgnEmpty(cl->copyRegion)) {
+	  if(cl->copyDX!=dx || cl->copyDY!=dy) {
+	     /* if a copyRegion was not yet executed, treat it as a
+	      * modifiedRegion. The idea: in this case it could be
+	      * source of the new copyRect or modified anyway. */
+	     sraRgnOr(cl->modifiedRegion,cl->copyRegion);
+	     sraRgnMakeEmpty(cl->copyRegion);
+	  } else {
+	     /* we have to set the intersection of the source of the copy
+	      * and the old copy to modified. */
+	     modifiedRegionBackup=sraRgnCreateRgn(copyRegion);
+	     sraRgnOffset(modifiedRegionBackup,-dx,-dy);
+	     sraRgnAnd(modifiedRegionBackup,cl->copyRegion);
+	     sraRgnOr(cl->modifiedRegion,modifiedRegionBackup);
+	     sraRgnDestroy(modifiedRegionBackup);
+	  }
+       }
+	  
+       sraRgnOr(cl->copyRegion,copyRegion);
+       cl->copyDX = dx;
+       cl->copyDY = dy;
+
+       /* if there were modified regions, which are now copied,
+	* mark them as modified, because the source of these can be overlapped
+	* either by new modified or now copied regions. */
+       modifiedRegionBackup=sraRgnCreateRgn(cl->modifiedRegion);
+       sraRgnOffset(modifiedRegionBackup,dx,dy);
+       sraRgnAnd(modifiedRegionBackup,cl->copyRegion);
+       sraRgnOr(cl->modifiedRegion,modifiedRegionBackup);
+       sraRgnDestroy(modifiedRegionBackup);
+
+#if 0
+       /* TODO: is this needed? Or does it mess up deferring? */
+       /* while(!sraRgnEmpty(cl->copyRegion)) */ {
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+	 if(!cl->screen->backgroundLoop)
+#endif
+	   {
+	     sraRegionPtr updateRegion = sraRgnCreateRgn(cl->modifiedRegion);
+	     sraRgnOr(updateRegion,cl->copyRegion);
+	     UNLOCK(cl->updateMutex);
+	     rfbSendFramebufferUpdate(cl,updateRegion);
+	     sraRgnDestroy(updateRegion);
+	     continue;
+	   }
+       }
+#endif
+     } else {
+       sraRgnOr(cl->modifiedRegion,copyRegion);
+     }
+     TSIGNAL(cl->updateCond);
+     UNLOCK(cl->updateMutex);
+   }
+
+   rfbReleaseClientIterator(iterator);
+}
+
+void rfbDoCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy)
+{
+   sraRectangleIterator* i;
+   sraRect rect;
+   int j,widthInBytes,bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8,
+    rowstride=rfbScreen->paddedWidthInBytes;
+   char *in,*out;
+
+   rfbUndrawCursor(rfbScreen);
+  
+   /* copy it, really */
+   i = sraRgnGetReverseIterator(copyRegion,dx<0,dy<0);
+   while(sraRgnIteratorNext(i,&rect)) {
+     widthInBytes = (rect.x2-rect.x1)*bpp;
+     out = rfbScreen->frameBuffer+rect.x1*bpp+rect.y1*rowstride;
+     in = rfbScreen->frameBuffer+(rect.x1-dx)*bpp+(rect.y1-dy)*rowstride;
+     if(dy<0)
+       for(j=rect.y1;j<rect.y2;j++,out+=rowstride,in+=rowstride)
+	 memmove(out,in,widthInBytes);
+     else {
+       out += rowstride*(rect.y2-rect.y1-1);
+       in += rowstride*(rect.y2-rect.y1-1);
+       for(j=rect.y2-1;j>=rect.y1;j--,out-=rowstride,in-=rowstride)
+	 memmove(out,in,widthInBytes);
+     }
+   }
+  
+   rfbScheduleCopyRegion(rfbScreen,copyRegion,dx,dy);
+}
+
+void rfbDoCopyRect(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2,int dx,int dy)
+{
+  sraRegionPtr region = sraRgnCreateRect(x1,y1,x2,y2);
+  rfbDoCopyRegion(rfbScreen,region,dx,dy);
+}
+
+void rfbScheduleCopyRect(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2,int dx,int dy)
+{
+  sraRegionPtr region = sraRgnCreateRect(x1,y1,x2,y2);
+  rfbScheduleCopyRegion(rfbScreen,region,dx,dy);
+}
+
+void rfbMarkRegionAsModified(rfbScreenInfoPtr rfbScreen,sraRegionPtr modRegion)
+{
+   rfbClientIteratorPtr iterator;
+   rfbClientPtr cl;
+
+   iterator=rfbGetClientIterator(rfbScreen);
+   while((cl=rfbClientIteratorNext(iterator))) {
+     LOCK(cl->updateMutex);
+     sraRgnOr(cl->modifiedRegion,modRegion);
+     TSIGNAL(cl->updateCond);
+     UNLOCK(cl->updateMutex);
+   }
+
+   rfbReleaseClientIterator(iterator);
+}
+
+void rfbMarkRectAsModified(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2)
+{
+   sraRegionPtr region;
+   int i;
+
+   if(x1>x2) { i=x1; x1=x2; x2=i; }
+   if(x1<0) x1=0;
+   if(x2>=rfbScreen->width) x2=rfbScreen->width-1;
+   if(x1==x2) return;
+   
+   if(y1>y2) { i=y1; y1=y2; y2=i; }
+   if(y1<0) y1=0;
+   if(y2>=rfbScreen->height) y2=rfbScreen->height-1;
+   if(y1==y2) return;
+   
+   region = sraRgnCreateRect(x1,y1,x2,y2);
+   rfbMarkRegionAsModified(rfbScreen,region);
+   sraRgnDestroy(region);
+}
+
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+static void *
+clientOutput(void *data)
+{
+    rfbClientPtr cl = (rfbClientPtr)data;
+    rfbBool haveUpdate;
+    sraRegion* updateRegion;
+
+    while (1) {
+        haveUpdate = false;
+        while (!haveUpdate) {
+            if (cl->sock == -1) {
+                /* Client has disconnected. */
+                return NULL;
+            }
+	    LOCK(cl->updateMutex);
+	    haveUpdate = FB_UPDATE_PENDING(cl);
+	    if(!haveUpdate) {
+		updateRegion = sraRgnCreateRgn(cl->modifiedRegion);
+		haveUpdate = sraRgnAnd(updateRegion,cl->requestedRegion);
+		sraRgnDestroy(updateRegion);
+	    }
+	    UNLOCK(cl->updateMutex);
+
+            if (!haveUpdate) {
+                WAIT(cl->updateCond, cl->updateMutex);
+		UNLOCK(cl->updateMutex); /* we really needn't lock now. */
+            }
+        }
+        
+        /* OK, now, to save bandwidth, wait a little while for more
+           updates to come along. */
+        usleep(cl->screen->rfbDeferUpdateTime * 1000);
+
+        /* Now, get the region we're going to update, and remove
+           it from cl->modifiedRegion _before_ we send the update.
+           That way, if anything that overlaps the region we're sending
+           is updated, we'll be sure to do another update later. */
+        LOCK(cl->updateMutex);
+	updateRegion = sraRgnCreateRgn(cl->modifiedRegion);
+        UNLOCK(cl->updateMutex);
+
+        /* Now actually send the update. */
+	rfbIncrClientRef(cl);
+        rfbSendFramebufferUpdate(cl, updateRegion);
+	rfbDecrClientRef(cl);
+
+	sraRgnDestroy(updateRegion);
+    }
+
+    return NULL;
+}
+
+static void *
+clientInput(void *data)
+{
+    rfbClientPtr cl = (rfbClientPtr)data;
+    pthread_t output_thread;
+    pthread_create(&output_thread, NULL, clientOutput, (void *)cl);
+
+    while (1) {
+        rfbProcessClientMessage(cl);
+        if (cl->sock == -1) {
+            /* Client has disconnected. */
+            break;
+        }
+    }
+
+    /* Get rid of the output thread. */
+    LOCK(cl->updateMutex);
+    TSIGNAL(cl->updateCond);
+    UNLOCK(cl->updateMutex);
+    IF_PTHREADS(pthread_join(output_thread, NULL));
+
+    rfbClientConnectionGone(cl);
+
+    return NULL;
+}
+
+static void*
+listenerRun(void *data)
+{
+    rfbScreenInfoPtr rfbScreen=(rfbScreenInfoPtr)data;
+    int client_fd;
+    struct sockaddr_in peer;
+    rfbClientPtr cl;
+    size_t len;
+
+    len = sizeof(peer);
+
+    /* TODO: this thread wont die by restarting the server */
+    while ((client_fd = accept(rfbScreen->rfbListenSock, 
+                               (struct sockaddr*)&peer, &len)) >= 0) {
+        cl = rfbNewClient(rfbScreen,client_fd);
+        len = sizeof(peer);
+
+	if (cl && !cl->onHold )
+		rfbStartOnHoldClient(cl);
+    }
+    return(NULL);
+}
+
+void 
+rfbStartOnHoldClient(rfbClientPtr cl)
+{
+    pthread_create(&cl->client_thread, NULL, clientInput, (void *)cl);
+}
+
+#else
+
+void 
+rfbStartOnHoldClient(rfbClientPtr cl)
+{
+	cl->onHold = FALSE;
+}
+
+#endif
+
+void 
+rfbRefuseOnHoldClient(rfbClientPtr cl)
+{
+    rfbCloseClient(cl);
+    rfbClientConnectionGone(cl);
+}
+
+static void
+defaultKbdAddEvent(rfbBool down, rfbKeySym keySym, rfbClientPtr cl)
+{
+}
+
+void
+defaultPtrAddEvent(int buttonMask, int x, int y, rfbClientPtr cl)
+{
+  rfbClientIteratorPtr iterator;
+  rfbClientPtr other_client;
+
+  if (x != cl->screen->cursorX || y != cl->screen->cursorY) {
+    if (cl->screen->cursorIsDrawn)
+      rfbUndrawCursor(cl->screen);
+    LOCK(cl->screen->cursorMutex);
+    if (!cl->screen->cursorIsDrawn) {
+      cl->screen->cursorX = x;
+      cl->screen->cursorY = y;
+    }
+    UNLOCK(cl->screen->cursorMutex);
+
+    /* The cursor was moved by this client, so don't send CursorPos. */
+    if (cl->enableCursorPosUpdates)
+      cl->cursorWasMoved = FALSE;
+
+    /* But inform all remaining clients about this cursor movement. */
+    iterator = rfbGetClientIterator(cl->screen);
+    while ((other_client = rfbClientIteratorNext(iterator)) != NULL) {
+      if (other_client != cl && other_client->enableCursorPosUpdates) {
+	other_client->cursorWasMoved = TRUE;
+      }
+    }
+    rfbReleaseClientIterator(iterator);
+  }
+}
+
+void defaultSetXCutText(char* text, int len, rfbClientPtr cl)
+{
+}
+
+/* TODO: add a nice VNC or RFB cursor */
+
+#if defined(WIN32) || defined(sparc) || !defined(NO_STRICT_ANSI)
+static rfbCursor myCursor = 
+{
+   FALSE, FALSE, FALSE, FALSE,
+   (unsigned char*)"\000\102\044\030\044\102\000",
+   (unsigned char*)"\347\347\176\074\176\347\347",
+   8, 7, 3, 3,
+   0, 0, 0,
+   0xffff, 0xffff, 0xffff,
+   0
+};
+#else
+static rfbCursor myCursor = 
+{
+   cleanup: FALSE,
+   cleanupSource: FALSE,
+   cleanupMask: FALSE,
+   cleanupRichSource: FALSE,
+   source: "\000\102\044\030\044\102\000",
+   mask:   "\347\347\176\074\176\347\347",
+   width: 8, height: 7, xhot: 3, yhot: 3,
+   foreRed: 0, foreGreen: 0, foreBlue: 0,
+   backRed: 0xffff, backGreen: 0xffff, backBlue: 0xffff,
+   richSource: 0
+};
+#endif
+
+rfbCursorPtr defaultGetCursorPtr(rfbClientPtr cl)
+{
+   return(cl->screen->cursor);
+}
+
+/* response is cl->authChallenge vncEncrypted with passwd */
+rfbBool defaultPasswordCheck(rfbClientPtr cl,const char* response,int len)
+{
+  int i;
+  char *passwd=vncDecryptPasswdFromFile(cl->screen->rfbAuthPasswdData);
+
+  if(!passwd) {
+    rfbErr("Couldn't read password file: %s\n",cl->screen->rfbAuthPasswdData);
+    return(FALSE);
+  }
+
+  vncEncryptBytes(cl->authChallenge, passwd);
+
+  /* Lose the password from memory */
+  for (i = strlen(passwd); i >= 0; i--) {
+    passwd[i] = '\0';
+  }
+
+  free(passwd);
+
+  if (memcmp(cl->authChallenge, response, len) != 0) {
+    rfbErr("rfbAuthProcessClientMessage: authentication failed from %s\n",
+	   cl->host);
+    return(FALSE);
+  }
+
+  return(TRUE);
+}
+
+/* for this method, rfbAuthPasswdData is really a pointer to an array
+   of char*'s, where the last pointer is 0. */
+rfbBool rfbCheckPasswordByList(rfbClientPtr cl,const char* response,int len)
+{
+  char **passwds;
+  int i=0;
+
+  for(passwds=(char**)cl->screen->rfbAuthPasswdData;*passwds;passwds++,i++) {
+    vncEncryptBytes(cl->authChallenge, *passwds);
+
+    if (memcmp(cl->authChallenge, response, len) == 0) {
+      if(i>=cl->screen->rfbAuthPasswdFirstViewOnly)
+	cl->viewOnly=TRUE;
+      return(TRUE);
+    }
+  }
+
+  rfbErr("rfbAuthProcessClientMessage: authentication failed from %s\n",
+	 cl->host);
+  return(FALSE);
+}
+
+void doNothingWithClient(rfbClientPtr cl)
+{
+}
+
+enum rfbNewClientAction defaultNewClientHook(rfbClientPtr cl)
+{
+	return RFB_CLIENT_ACCEPT;
+}
+
+/*
+ * Update server's pixel format in rfbScreenInfo structure. This
+ * function is called from rfbGetScreen() and rfbNewFramebuffer().
+ */
+
+static void rfbInitServerFormat(rfbScreenInfoPtr rfbScreen, int bitsPerSample)
+{
+   rfbPixelFormat* format=&rfbScreen->rfbServerFormat;
+
+   format->bitsPerPixel = rfbScreen->bitsPerPixel;
+   format->depth = rfbScreen->depth;
+   format->bigEndian = rfbEndianTest?FALSE:TRUE;
+   format->trueColour = TRUE;
+   rfbScreen->colourMap.count = 0;
+   rfbScreen->colourMap.is16 = 0;
+   rfbScreen->colourMap.data.bytes = NULL;
+
+   if (format->bitsPerPixel == 8) {
+     format->redMax = 7;
+     format->greenMax = 7;
+     format->blueMax = 3;
+     format->redShift = 0;
+     format->greenShift = 3;
+     format->blueShift = 6;
+   } else {
+     format->redMax = (1 << bitsPerSample) - 1;
+     format->greenMax = (1 << bitsPerSample) - 1;
+     format->blueMax = (1 << bitsPerSample) - 1;
+     if(rfbEndianTest) {
+       format->redShift = 0;
+       format->greenShift = bitsPerSample;
+       format->blueShift = bitsPerSample * 2;
+     } else {
+       if(format->bitsPerPixel==8*3) {
+	 format->redShift = bitsPerSample*2;
+	 format->greenShift = bitsPerSample*1;
+	 format->blueShift = 0;
+       } else {
+	 format->redShift = bitsPerSample*3;
+	 format->greenShift = bitsPerSample*2;
+	 format->blueShift = bitsPerSample;
+       }
+     }
+   }
+}
+
+rfbScreenInfoPtr rfbGetScreen(int* argc,char** argv,
+ int width,int height,int bitsPerSample,int samplesPerPixel,
+ int bytesPerPixel)
+{
+   rfbScreenInfoPtr rfbScreen=malloc(sizeof(rfbScreenInfo));
+
+   INIT_MUTEX(logMutex);
+
+   if(width&3)
+     rfbErr("WARNING: Width (%d) is not a multiple of 4. VncViewer has problems with that.\n",width);
+
+   rfbScreen->autoPort=FALSE;
+   rfbScreen->rfbClientHead=0;
+   rfbScreen->rfbPort=5900;
+   rfbScreen->socketInitDone=FALSE;
+
+   rfbScreen->inetdInitDone = FALSE;
+   rfbScreen->inetdSock=-1;
+
+   rfbScreen->udpSock=-1;
+   rfbScreen->udpSockConnected=FALSE;
+   rfbScreen->udpPort=0;
+   rfbScreen->udpClient=0;
+
+   rfbScreen->maxFd=0;
+   rfbScreen->rfbListenSock=-1;
+
+   rfbScreen->httpInitDone=FALSE;
+   rfbScreen->httpEnableProxyConnect=FALSE;
+   rfbScreen->httpPort=0;
+   rfbScreen->httpDir=NULL;
+   rfbScreen->httpListenSock=-1;
+   rfbScreen->httpSock=-1;
+
+   rfbScreen->desktopName = "LibVNCServer";
+   rfbScreen->rfbAlwaysShared = FALSE;
+   rfbScreen->rfbNeverShared = FALSE;
+   rfbScreen->rfbDontDisconnect = FALSE;
+   rfbScreen->rfbAuthPasswdData = 0;
+   rfbScreen->rfbAuthPasswdFirstViewOnly = 1;
+   
+   rfbScreen->width = width;
+   rfbScreen->height = height;
+   rfbScreen->bitsPerPixel = rfbScreen->depth = 8*bytesPerPixel;
+
+   rfbScreen->passwordCheck = defaultPasswordCheck;
+
+   rfbScreen->ignoreSIGPIPE = TRUE;
+
+   /* disable progressive updating per default */
+   rfbScreen->progressiveSliceHeight = 0;
+
+   if(!rfbProcessArguments(rfbScreen,argc,argv)) {
+     free(rfbScreen);
+     return 0;
+   }
+
+#ifdef WIN32
+   {
+	   DWORD dummy=255;
+	   GetComputerName(rfbScreen->rfbThisHost,&dummy);
+   }
+#else
+   gethostname(rfbScreen->rfbThisHost, 255);
+#endif
+
+   rfbScreen->paddedWidthInBytes = width*bytesPerPixel;
+
+   /* format */
+
+   rfbInitServerFormat(rfbScreen, bitsPerSample);
+
+   /* cursor */
+
+   rfbScreen->cursorIsDrawn = FALSE;
+   rfbScreen->dontSendFramebufferUpdate = FALSE;
+   rfbScreen->cursorX=rfbScreen->cursorY=rfbScreen->underCursorBufferLen=0;
+   rfbScreen->underCursorBuffer=NULL;
+   rfbScreen->dontConvertRichCursorToXCursor = FALSE;
+   rfbScreen->cursor = &myCursor;
+   INIT_MUTEX(rfbScreen->cursorMutex);
+
+   IF_PTHREADS(rfbScreen->backgroundLoop = FALSE);
+
+   rfbScreen->rfbDeferUpdateTime=5;
+   rfbScreen->maxRectsPerUpdate=50;
+
+   /* proc's and hook's */
+
+   rfbScreen->kbdAddEvent = defaultKbdAddEvent;
+   rfbScreen->kbdReleaseAllKeys = doNothingWithClient;
+   rfbScreen->ptrAddEvent = defaultPtrAddEvent;
+   rfbScreen->setXCutText = defaultSetXCutText;
+   rfbScreen->getCursorPtr = defaultGetCursorPtr;
+   rfbScreen->setTranslateFunction = rfbSetTranslateFunction;
+   rfbScreen->newClientHook = defaultNewClientHook;
+   rfbScreen->displayHook = 0;
+
+   /* initialize client list and iterator mutex */
+   rfbClientListInit(rfbScreen);
+
+   return(rfbScreen);
+}
+
+/*
+ * Switch to another framebuffer (maybe of different size and color
+ * format). Clients supporting NewFBSize pseudo-encoding will change
+ * their local framebuffer dimensions if necessary.
+ * NOTE: Rich cursor data should be converted to new pixel format by
+ * the caller.
+ */
+
+void rfbNewFramebuffer(rfbScreenInfoPtr rfbScreen, char *framebuffer,
+                       int width, int height,
+                       int bitsPerSample, int samplesPerPixel,
+                       int bytesPerPixel)
+{
+  rfbPixelFormat old_format;
+  rfbBool format_changed = FALSE;
+  rfbClientIteratorPtr iterator;
+  rfbClientPtr cl;
+
+  /* Remove the pointer */
+
+  rfbUndrawCursor(rfbScreen);
+
+  /* Update information in the rfbScreenInfo structure */
+
+  old_format = rfbScreen->rfbServerFormat;
+
+  if (width & 3)
+    rfbErr("WARNING: New width (%d) is not a multiple of 4.\n", width);
+
+  rfbScreen->width = width;
+  rfbScreen->height = height;
+  rfbScreen->bitsPerPixel = rfbScreen->depth = 8*bytesPerPixel;
+  rfbScreen->paddedWidthInBytes = width*bytesPerPixel;
+
+  rfbInitServerFormat(rfbScreen, bitsPerSample);
+
+  if (memcmp(&rfbScreen->rfbServerFormat, &old_format,
+             sizeof(rfbPixelFormat)) != 0) {
+    format_changed = TRUE;
+  }
+
+  rfbScreen->frameBuffer = framebuffer;
+
+  /* Adjust pointer position if necessary */
+
+  if (rfbScreen->cursorX >= width)
+    rfbScreen->cursorX = width - 1;
+  if (rfbScreen->cursorY >= height)
+    rfbScreen->cursorY = height - 1;
+
+  /* For each client: */
+  iterator = rfbGetClientIterator(rfbScreen);
+  while ((cl = rfbClientIteratorNext(iterator)) != NULL) {
+
+    /* Re-install color translation tables if necessary */
+
+    if (format_changed)
+      rfbScreen->setTranslateFunction(cl);
+
+    /* Mark the screen contents as changed, and schedule sending
+       NewFBSize message if supported by this client. */
+
+    LOCK(cl->updateMutex);
+    sraRgnDestroy(cl->modifiedRegion);
+    cl->modifiedRegion = sraRgnCreateRect(0, 0, width, height);
+    sraRgnMakeEmpty(cl->copyRegion);
+    cl->copyDX = 0;
+    cl->copyDY = 0;
+
+    if (cl->useNewFBSize)
+      cl->newFBSizePending = TRUE;
+
+    TSIGNAL(cl->updateCond);
+    UNLOCK(cl->updateMutex);
+  }
+  rfbReleaseClientIterator(iterator);
+}
+
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+extern void TightCleanup();
+#endif
+
+void rfbScreenCleanup(rfbScreenInfoPtr rfbScreen)
+{
+  rfbClientIteratorPtr i=rfbGetClientIterator(rfbScreen);
+  rfbClientPtr cl,cl1=rfbClientIteratorNext(i);
+  while(cl1) {
+    cl=rfbClientIteratorNext(i);
+    rfbClientConnectionGone(cl1);
+    cl1=cl;
+  }
+  rfbReleaseClientIterator(i);
+    
+  /* TODO: hang up on all clients and free all reserved memory */
+#define FREE_IF(x) if(rfbScreen->x) free(rfbScreen->x)
+  FREE_IF(colourMap.data.bytes);
+  FREE_IF(underCursorBuffer);
+  TINI_MUTEX(rfbScreen->cursorMutex);
+  if(rfbScreen->cursor)
+    rfbFreeCursor(rfbScreen->cursor);
+  free(rfbScreen);
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+  TightCleanup();
+#endif
+}
+
+void rfbInitServer(rfbScreenInfoPtr rfbScreen)
+{
+#ifdef WIN32
+  WSADATA trash;
+  int i=WSAStartup(MAKEWORD(2,2),&trash);
+#endif
+  rfbInitSockets(rfbScreen);
+  httpInitSockets(rfbScreen);
+  if(rfbScreen->ignoreSIGPIPE)
+    signal(SIGPIPE,SIG_IGN);
+}
+
+#ifndef LIBVNCSERVER_HAVE_GETTIMEOFDAY
+#include <fcntl.h>
+#include <conio.h>
+#include <sys/timeb.h>
+
+void gettimeofday(struct timeval* tv,char* dummy)
+{
+   SYSTEMTIME t;
+   GetSystemTime(&t);
+   tv->tv_sec=t.wHour*3600+t.wMinute*60+t.wSecond;
+   tv->tv_usec=t.wMilliseconds*1000;
+}
+#endif
+
+/* defined in rfbserver.c, but kind of "private" */
+rfbClientPtr rfbClientIteratorHead(rfbClientIteratorPtr i);
+
+void
+rfbProcessEvents(rfbScreenInfoPtr rfbScreen,long usec)
+{
+  rfbClientIteratorPtr i;
+  rfbClientPtr cl,clPrev;
+  struct timeval tv;
+
+  if(usec<0)
+    usec=rfbScreen->rfbDeferUpdateTime*1000;
+
+  rfbCheckFds(rfbScreen,usec);
+  httpCheckFds(rfbScreen);
+#ifdef CORBA
+  corbaCheckFds(rfbScreen);
+#endif
+
+  i = rfbGetClientIterator(rfbScreen);
+  cl=rfbClientIteratorHead(i);
+  while(cl) {
+    if (cl->sock >= 0 && !cl->onHold && FB_UPDATE_PENDING(cl) &&
+        !sraRgnEmpty(cl->requestedRegion)) {
+      if(rfbScreen->rfbDeferUpdateTime == 0) {
+	  rfbSendFramebufferUpdate(cl,cl->modifiedRegion);
+      } else if(cl->startDeferring.tv_usec == 0) {
+	gettimeofday(&cl->startDeferring,NULL);
+	if(cl->startDeferring.tv_usec == 0)
+	  cl->startDeferring.tv_usec++;
+      } else {
+	gettimeofday(&tv,NULL);
+	if(tv.tv_sec < cl->startDeferring.tv_sec /* at midnight */
+	   || ((tv.tv_sec-cl->startDeferring.tv_sec)*1000
+	       +(tv.tv_usec-cl->startDeferring.tv_usec)/1000)
+	     > rfbScreen->rfbDeferUpdateTime) {
+	  cl->startDeferring.tv_usec = 0;
+	  rfbSendFramebufferUpdate(cl,cl->modifiedRegion);
+	}
+      }
+    }
+    clPrev=cl;
+    cl=rfbClientIteratorNext(i);
+    if(clPrev->sock==-1)
+      rfbClientConnectionGone(clPrev);
+  }
+  rfbReleaseClientIterator(i);
+}
+
+void rfbRunEventLoop(rfbScreenInfoPtr rfbScreen, long usec, rfbBool runInBackground)
+{
+  if(runInBackground) {
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+       pthread_t listener_thread;
+
+       rfbScreen->backgroundLoop = TRUE;
+
+       pthread_create(&listener_thread, NULL, listenerRun, rfbScreen);
+    return;
+#else
+    rfbErr("Can't run in background, because I don't have PThreads!\n");
+    return;
+#endif
+  }
+
+  if(usec<0)
+    usec=rfbScreen->rfbDeferUpdateTime*1000;
+
+  while(1)
+    rfbProcessEvents(rfbScreen,usec);
+}
diff --git a/libvncserver/rfbconfig.h b/libvncserver/rfbconfig.h
new file mode 100644
index 0000000..888fc9b
--- /dev/null
+++ b/libvncserver/rfbconfig.h
@@ -0,0 +1,243 @@
+/* rfbconfig.h.  Generated by configure.  */
+/* rfbconfig.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Enable 24 bit per pixel in native framebuffer */
+#define ALLOW24BPP 1
+
+/* Enable BackChannel communication */
+#define BACKCHANNEL 1
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
+/* #undef HAVE_DOPRNT */
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the `fork' function. */
+#define HAVE_FORK 1
+
+/* Define to 1 if you have the `ftime' function. */
+#define HAVE_FTIME 1
+
+/* Define to 1 if you have the `gethostbyname' function. */
+#define HAVE_GETHOSTBYNAME 1
+
+/* Define to 1 if you have the `gethostname' function. */
+#define HAVE_GETHOSTNAME 1
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#define HAVE_GETTIMEOFDAY 1
+
+/* Define to 1 if you have the `inet_ntoa' function. */
+#define HAVE_INET_NTOA 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `cygipc' library (-lcygipc). */
+/* #undef HAVE_LIBCYGIPC */
+
+/* Define to 1 if you have the `jpeg' library (-ljpeg). */
+#define HAVE_LIBJPEG 1
+
+/* Define to 1 if you have the `nsl' library (-lnsl). */
+#define HAVE_LIBNSL 1
+
+/* Define to 1 if you have the `pthread' library (-lpthread). */
+#define HAVE_LIBPTHREAD 1
+
+/* Define to 1 if you have the `socket' library (-lsocket). */
+/* #undef HAVE_LIBSOCKET */
+
+/* XINERAMA extension build environment present */
+#define HAVE_LIBXINERAMA 1
+
+/* Define to 1 if you have the `z' library (-lz). */
+#define HAVE_LIBZ 1
+
+/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
+   to 0 otherwise. */
+#define HAVE_MALLOC 1
+
+/* Define to 1 if you have the `memmove' function. */
+#define HAVE_MEMMOVE 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `memset' function. */
+#define HAVE_MEMSET 1
+
+/* Define to 1 if you have the `mkfifo' function. */
+#define HAVE_MKFIFO 1
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#define HAVE_NETDB_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the `select' function. */
+#define HAVE_SELECT 1
+
+/* Define to 1 if you have the `setsid' function. */
+#define HAVE_SETSID 1
+
+/* Define to 1 if you have the `socket' function. */
+#define HAVE_SOCKET 1
+
+/* Define to 1 if `stat' has the bug that it succeeds when given the
+   zero-length file name argument. */
+/* #undef HAVE_STAT_EMPTY_STRING_BUG */
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the `strchr' function. */
+#define HAVE_STRCHR 1
+
+/* Define to 1 if you have the `strcspn' function. */
+#define HAVE_STRCSPN 1
+
+/* Define to 1 if you have the `strdup' function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the `strerror' function. */
+#define HAVE_STRERROR 1
+
+/* Define to 1 if you have the `strftime' function. */
+#define HAVE_STRFTIME 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the `strstr' function. */
+#define HAVE_STRSTR 1
+
+/* Define to 1 if you have the <syslog.h> header file. */
+#define HAVE_SYSLOG_H 1
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/timeb.h> header file. */
+#define HAVE_SYS_TIMEB_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
+#define HAVE_SYS_WAIT_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the `vfork' function. */
+#define HAVE_VFORK 1
+
+/* Define to 1 if you have the <vfork.h> header file. */
+/* #undef HAVE_VFORK_H */
+
+/* Define to 1 if you have the `vprintf' function. */
+#define HAVE_VPRINTF 1
+
+/* Define to 1 if `fork' works. */
+#define HAVE_WORKING_FORK 1
+
+/* Define to 1 if `vfork' works. */
+#define HAVE_WORKING_VFORK 1
+
+/* XKEYBOARD extension build environment present */
+#define HAVE_XKEYBOARD 1
+
+/* Define to 1 if `lstat' dereferences a symlink specified with a trailing
+   slash. */
+#define LSTAT_FOLLOWS_SLASHED_SYMLINK 1
+
+/* Name of package */
+#define PACKAGE "LibVNCServer"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "http://sourceforge.net/projects/libvncserver"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "LibVNCServer"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "LibVNCServer 0.7pre"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "libvncserver"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "0.7pre"
+
+/* The number of bytes in type char */
+/* #undef SIZEOF_CHAR */
+
+/* The number of bytes in type int */
+/* #undef SIZEOF_INT */
+
+/* The number of bytes in type long */
+/* #undef SIZEOF_LONG */
+
+/* The number of bytes in type short */
+/* #undef SIZEOF_SHORT */
+
+/* The number of bytes in type void* */
+/* #undef SIZEOF_VOIDP */
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Version number of package */
+#define VERSION "0.7pre"
+
+/* Define to 1 if your processor stores words with the most significant byte
+   first (like Motorola and SPARC, unlike Intel and VAX). */
+/* #undef WORDS_BIGENDIAN */
+
+/* Define to 1 if the X Window System is missing or not being used. */
+/* #undef X_DISPLAY_MISSING */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to rpl_malloc if the replacement function should be used. */
+/* #undef malloc */
+
+/* Define to `int' if <sys/types.h> does not define. */
+/* #undef pid_t */
+
+/* Define to `unsigned' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* The type for socklen */
+/* #undef socklen_t */
+
+/* Define as `fork' if `vfork' does not work. */
+/* #undef vfork */
diff --git a/libvncserver/rfbregion.c b/libvncserver/rfbregion.c
new file mode 100755
index 0000000..a102bc2
--- /dev/null
+++ b/libvncserver/rfbregion.c
@@ -0,0 +1,862 @@
+/* -=- sraRegion.c
+ * Copyright (c) 2001 James "Wez" Weatherall, Johannes E. Schindelin
+ *
+ * A general purpose region clipping library
+ * Only deals with rectangular regions, though.
+ */
+
+#include <rfb/rfb.h>
+#include <rfb/rfbregion.h>
+
+/* -=- Internal Span structure */
+
+struct sraRegion;
+
+typedef struct sraSpan {
+  struct sraSpan *_next;
+  struct sraSpan *_prev;
+  int start;
+  int end;
+  struct sraRegion *subspan;
+} sraSpan;
+
+typedef struct sraRegion {
+  sraSpan front;
+  sraSpan back;
+} sraSpanList;
+
+/* -=- Span routines */
+
+sraSpanList *sraSpanListDup(const sraSpanList *src);
+void sraSpanListDestroy(sraSpanList *list);
+
+sraSpan *
+sraSpanCreate(int start, int end, const sraSpanList *subspan) {
+  sraSpan *item = (sraSpan*)malloc(sizeof(sraSpan));
+  item->_next = item->_prev = NULL;
+  item->start = start;
+  item->end = end;
+  item->subspan = sraSpanListDup(subspan);
+  return item;
+}
+
+sraSpan *
+sraSpanDup(const sraSpan *src) {
+  sraSpan *span;
+  if (!src) return NULL;
+  span = sraSpanCreate(src->start, src->end, src->subspan);
+  return span;
+}
+
+void
+sraSpanInsertAfter(sraSpan *newspan, sraSpan *after) {
+  newspan->_next = after->_next;
+  newspan->_prev = after;
+  after->_next->_prev = newspan;
+  after->_next = newspan;
+}
+
+void
+sraSpanInsertBefore(sraSpan *newspan, sraSpan *before) {
+  newspan->_next = before;
+  newspan->_prev = before->_prev;
+  before->_prev->_next = newspan;
+  before->_prev = newspan;
+}
+
+void
+sraSpanRemove(sraSpan *span) {
+  span->_prev->_next = span->_next;
+  span->_next->_prev = span->_prev;
+}
+
+void
+sraSpanDestroy(sraSpan *span) {
+  if (span->subspan) sraSpanListDestroy(span->subspan);
+  free(span);
+}
+
+void
+sraSpanCheck(const sraSpan *span, const char *text) {
+  /* Check the span is valid! */
+  if (span->start == span->end) {
+    printf(text); 
+    printf(":%d-%d\n", span->start, span->end);
+  }
+}
+
+/* -=- SpanList routines */
+
+void sraSpanPrint(const sraSpan *s);
+
+void
+sraSpanListPrint(const sraSpanList *l) {
+  sraSpan *curr;
+  if (!l) {
+	  printf("NULL");
+	  return;
+  }
+  curr = l->front._next;
+  printf("[");
+  while (curr != &(l->back)) {
+    sraSpanPrint(curr);
+    curr = curr->_next;
+  }
+  printf("]");
+}
+
+void
+sraSpanPrint(const sraSpan *s) {
+  printf("(%d-%d)", (s->start), (s->end));
+  if (s->subspan)
+    sraSpanListPrint(s->subspan);
+}
+
+sraSpanList *
+sraSpanListCreate() {
+  sraSpanList *item = (sraSpanList*)malloc(sizeof(sraSpanList));
+  item->front._next = &(item->back);
+  item->front._prev = NULL;
+  item->back._prev = &(item->front);
+  item->back._next = NULL;
+  return item;
+}
+
+sraSpanList *
+sraSpanListDup(const sraSpanList *src) {
+  sraSpanList *newlist;
+  sraSpan *newspan, *curr;
+
+  if (!src) return NULL;
+  newlist = sraSpanListCreate();
+  curr = src->front._next;
+  while (curr != &(src->back)) {
+    newspan = sraSpanDup(curr);
+    sraSpanInsertBefore(newspan, &(newlist->back));
+    curr = curr->_next;
+  }
+
+  return newlist;
+}
+
+void
+sraSpanListDestroy(sraSpanList *list) {
+  sraSpan *curr, *next;
+  while (list->front._next != &(list->back)) {
+    curr = list->front._next;
+    next = curr->_next;
+    sraSpanRemove(curr);
+    sraSpanDestroy(curr);
+    curr = next;
+  }
+  free(list);
+}
+
+void
+sraSpanListMakeEmpty(sraSpanList *list) {
+  sraSpan *curr, *next;
+  while (list->front._next != &(list->back)) {
+    curr = list->front._next;
+    next = curr->_next;
+    sraSpanRemove(curr);
+    sraSpanDestroy(curr);
+    curr = next;
+  }
+  list->front._next = &(list->back);
+  list->front._prev = NULL;
+  list->back._prev = &(list->front);
+  list->back._next = NULL;
+}
+
+rfbBool
+sraSpanListEqual(const sraSpanList *s1, const sraSpanList *s2) {
+  sraSpan *sp1, *sp2;
+
+  if (!s1) {
+    if (!s2) {
+      return 1;
+    } else {
+      printf("sraSpanListEqual:incompatible spans (only one NULL!)\n");
+      return FALSE;
+    }
+  }
+
+  sp1 = s1->front._next;
+  sp2 = s2->front._next;
+  while ((sp1 != &(s1->back)) &&
+	 (sp2 != &(s2->back))) {
+    if ((sp1->start != sp2->start) ||
+	(sp1->end != sp2->end) ||
+	(!sraSpanListEqual(sp1->subspan, sp2->subspan))) {
+      return 0;
+    }
+    sp1 = sp1->_next;
+    sp2 = sp2->_next;
+  }
+
+  if ((sp1 == &(s1->back)) && (sp2 == &(s2->back))) {
+    return 1;
+  } else {
+    return 0;
+  }    
+}
+
+rfbBool
+sraSpanListEmpty(const sraSpanList *list) {
+  return (list->front._next == &(list->back));
+}
+
+unsigned long
+sraSpanListCount(const sraSpanList *list) {
+  sraSpan *curr = list->front._next;
+  unsigned long count = 0;
+  while (curr != &(list->back)) {
+    if (curr->subspan) {
+      count += sraSpanListCount(curr->subspan);
+    } else {
+      count += 1;
+    }
+    curr = curr->_next;
+  }
+  return count;
+}
+
+void
+sraSpanMergePrevious(sraSpan *dest) {
+  sraSpan *prev = dest->_prev;
+ 
+  while ((prev->_prev) &&
+	 (prev->end == dest->start) &&
+	 (sraSpanListEqual(prev->subspan, dest->subspan))) {
+    /*
+    printf("merge_prev:");
+    sraSpanPrint(prev);
+    printf(" & ");
+    sraSpanPrint(dest);
+    printf("\n");
+    */
+    dest->start = prev->start;
+    sraSpanRemove(prev);
+    sraSpanDestroy(prev);
+    prev = dest->_prev;
+  }
+}    
+
+void
+sraSpanMergeNext(sraSpan *dest) {
+  sraSpan *next = dest->_next;
+  while ((next->_next) &&
+	 (next->start == dest->end) &&
+	 (sraSpanListEqual(next->subspan, dest->subspan))) {
+/*
+	  printf("merge_next:");
+    sraSpanPrint(dest);
+    printf(" & ");
+    sraSpanPrint(next);
+    printf("\n");
+	*/
+    dest->end = next->end;
+    sraSpanRemove(next);
+    sraSpanDestroy(next);
+    next = dest->_next;
+  }
+}
+
+void
+sraSpanListOr(sraSpanList *dest, const sraSpanList *src) {
+  sraSpan *d_curr, *s_curr;
+  int s_start, s_end;
+
+  if (!dest) {
+    if (!src) {
+      return;
+    } else {
+      printf("sraSpanListOr:incompatible spans (only one NULL!)\n");
+      return;
+    }
+  }
+
+  d_curr = dest->front._next;
+  s_curr = src->front._next;
+  s_start = s_curr->start;
+  s_end = s_curr->end;
+  while (s_curr != &(src->back)) {
+
+    /* - If we are at end of destination list OR
+       If the new span comes before the next destination one */
+    if ((d_curr == &(dest->back)) ||
+		(d_curr->start >= s_end)) {
+      /* - Add the span */
+      sraSpanInsertBefore(sraSpanCreate(s_start, s_end,
+					s_curr->subspan),
+			  d_curr);
+      if (d_curr != &(dest->back))
+	sraSpanMergePrevious(d_curr);
+      s_curr = s_curr->_next;
+      s_start = s_curr->start;
+      s_end = s_curr->end;
+    } else {
+
+      /* - If the new span overlaps the existing one */
+      if ((s_start < d_curr->end) &&
+	  (s_end > d_curr->start)) {
+
+	/* - Insert new span before the existing destination one? */
+	if (s_start < d_curr->start) {
+	  sraSpanInsertBefore(sraSpanCreate(s_start,
+					    d_curr->start,
+					    s_curr->subspan),
+			      d_curr);
+	  sraSpanMergePrevious(d_curr);
+	}
+
+	/* Split the existing span if necessary */
+	if (s_end < d_curr->end) {
+	  sraSpanInsertAfter(sraSpanCreate(s_end,
+					   d_curr->end,
+					   d_curr->subspan),
+			     d_curr);
+	  d_curr->end = s_end;
+	}
+	if (s_start > d_curr->start) {
+	  sraSpanInsertBefore(sraSpanCreate(d_curr->start,
+					    s_start,
+					    d_curr->subspan),
+			      d_curr);
+	  d_curr->start = s_start;
+	}
+
+	/* Recursively OR subspans */
+	sraSpanListOr(d_curr->subspan, s_curr->subspan);
+
+	/* Merge this span with previous or next? */
+	if (d_curr->_prev != &(dest->front))
+	  sraSpanMergePrevious(d_curr);
+	if (d_curr->_next != &(dest->back))
+	  sraSpanMergeNext(d_curr);
+
+	/* Move onto the next pair to compare */
+	if (s_end > d_curr->end) {
+	  s_start = d_curr->end;
+	  d_curr = d_curr->_next;
+	} else {
+	  s_curr = s_curr->_next;
+	  s_start = s_curr->start;
+	  s_end = s_curr->end;
+	}
+      } else {
+	/* - No overlap.  Move to the next destination span */
+	d_curr = d_curr->_next;
+      }
+    }
+  }
+}
+
+rfbBool
+sraSpanListAnd(sraSpanList *dest, const sraSpanList *src) {
+  sraSpan *d_curr, *s_curr, *d_next;
+
+  if (!dest) {
+    if (!src) {
+      return 1;
+    } else {
+      printf("sraSpanListAnd:incompatible spans (only one NULL!)\n");
+      return FALSE;
+    }
+  }
+
+  d_curr = dest->front._next;
+  s_curr = src->front._next;
+  while ((s_curr != &(src->back)) && (d_curr != &(dest->back))) {
+
+    /* - If we haven't reached a destination span yet then move on */
+    if (d_curr->start >= s_curr->end) {
+      s_curr = s_curr->_next;
+      continue;
+    }
+
+    /* - If we are beyond the current destination span then remove it */
+    if (d_curr->end <= s_curr->start) {
+      sraSpan *next = d_curr->_next;
+      sraSpanRemove(d_curr);
+      sraSpanDestroy(d_curr);
+      d_curr = next;
+      continue;
+    }
+
+    /* - If we partially overlap a span then split it up or remove bits */
+    if (s_curr->start > d_curr->start) {
+      /* - The top bit of the span does not match */
+      d_curr->start = s_curr->start;
+    }
+    if (s_curr->end < d_curr->end) {
+      /* - The end of the span does not match */
+      sraSpanInsertAfter(sraSpanCreate(s_curr->end,
+				       d_curr->end,
+				       d_curr->subspan),
+			 d_curr);
+      d_curr->end = s_curr->end;
+    }
+
+    /* - Now recursively process the affected span */
+    if (!sraSpanListAnd(d_curr->subspan, s_curr->subspan)) {
+      /* - The destination subspan is now empty, so we should remove it */
+		sraSpan *next = d_curr->_next;
+      sraSpanRemove(d_curr);
+      sraSpanDestroy(d_curr);
+      d_curr = next;
+    } else {
+      /* Merge this span with previous or next? */
+      if (d_curr->_prev != &(dest->front))
+	sraSpanMergePrevious(d_curr);
+
+      /* - Move on to the next span */
+      d_next = d_curr;
+      if (s_curr->end >= d_curr->end) {
+	d_next = d_curr->_next;
+      }
+      if (s_curr->end <= d_curr->end) {
+	s_curr = s_curr->_next;
+      }
+      d_curr = d_next;
+    }
+  }
+
+  while (d_curr != &(dest->back)) {
+    sraSpan *next = d_curr->_next;
+    sraSpanRemove(d_curr);
+    sraSpanDestroy(d_curr);
+    d_curr=next;
+  }
+
+  return !sraSpanListEmpty(dest);
+}
+
+rfbBool
+sraSpanListSubtract(sraSpanList *dest, const sraSpanList *src) {
+  sraSpan *d_curr, *s_curr;
+
+  if (!dest) {
+    if (!src) {
+      return 1;
+    } else {
+      printf("sraSpanListSubtract:incompatible spans (only one NULL!)\n");
+      return FALSE;
+    }
+  }
+
+  d_curr = dest->front._next;
+  s_curr = src->front._next;
+  while ((s_curr != &(src->back)) && (d_curr != &(dest->back))) {
+
+    /* - If we haven't reached a destination span yet then move on */
+    if (d_curr->start >= s_curr->end) {
+      s_curr = s_curr->_next;
+      continue;
+    }
+
+    /* - If we are beyond the current destination span then skip it */
+    if (d_curr->end <= s_curr->start) {
+      d_curr = d_curr->_next;
+      continue;
+    }
+
+    /* - If we partially overlap the current span then split it up */
+    if (s_curr->start > d_curr->start) {
+      sraSpanInsertBefore(sraSpanCreate(d_curr->start,
+					s_curr->start,
+					d_curr->subspan),
+			  d_curr);
+      d_curr->start = s_curr->start;
+    }
+    if (s_curr->end < d_curr->end) {
+      sraSpanInsertAfter(sraSpanCreate(s_curr->end,
+				       d_curr->end,
+				       d_curr->subspan),
+			 d_curr);
+      d_curr->end = s_curr->end;
+    }
+
+    /* - Now recursively process the affected span */
+    if ((!d_curr->subspan) || !sraSpanListSubtract(d_curr->subspan, s_curr->subspan)) {
+      /* - The destination subspan is now empty, so we should remove it */
+      sraSpan *next = d_curr->_next;
+      sraSpanRemove(d_curr);
+      sraSpanDestroy(d_curr);
+      d_curr = next;
+    } else {
+      /* Merge this span with previous or next? */
+      if (d_curr->_prev != &(dest->front))
+	sraSpanMergePrevious(d_curr);
+      if (d_curr->_next != &(dest->back))
+	sraSpanMergeNext(d_curr);
+
+      /* - Move on to the next span */
+      if (s_curr->end > d_curr->end) {
+	d_curr = d_curr->_next;
+      } else {
+	s_curr = s_curr->_next;
+      }
+    }
+  }
+
+  return !sraSpanListEmpty(dest);
+}
+
+/* -=- Region routines */
+
+sraRegion *
+sraRgnCreate() {
+  return (sraRegion*)sraSpanListCreate();
+}
+
+sraRegion *
+sraRgnCreateRect(int x1, int y1, int x2, int y2) {
+  sraSpanList *vlist, *hlist;
+  sraSpan *vspan, *hspan;
+
+  /* - Build the horizontal portion of the span */
+  hlist = sraSpanListCreate();
+  hspan = sraSpanCreate(x1, x2, NULL);
+  sraSpanInsertAfter(hspan, &(hlist->front));
+
+  /* - Build the vertical portion of the span */
+  vlist = sraSpanListCreate();
+  vspan = sraSpanCreate(y1, y2, hlist);
+  sraSpanInsertAfter(vspan, &(vlist->front));
+
+  sraSpanListDestroy(hlist);
+
+  return (sraRegion*)vlist;
+}
+
+sraRegion *
+sraRgnCreateRgn(const sraRegion *src) {
+  return (sraRegion*)sraSpanListDup((sraSpanList*)src);
+}
+
+void
+sraRgnDestroy(sraRegion *rgn) {
+  sraSpanListDestroy((sraSpanList*)rgn);
+}
+
+void
+sraRgnMakeEmpty(sraRegion *rgn) {
+  sraSpanListMakeEmpty((sraSpanList*)rgn);
+}
+
+/* -=- Boolean Region ops */
+
+rfbBool
+sraRgnAnd(sraRegion *dst, const sraRegion *src) {
+  return sraSpanListAnd((sraSpanList*)dst, (sraSpanList*)src);
+}
+
+void
+sraRgnOr(sraRegion *dst, const sraRegion *src) {
+  sraSpanListOr((sraSpanList*)dst, (sraSpanList*)src);
+}
+
+rfbBool
+sraRgnSubtract(sraRegion *dst, const sraRegion *src) {
+  return sraSpanListSubtract((sraSpanList*)dst, (sraSpanList*)src);
+}
+
+void
+sraRgnOffset(sraRegion *dst, int dx, int dy) {
+  sraSpan *vcurr, *hcurr;
+
+  vcurr = ((sraSpanList*)dst)->front._next;
+  while (vcurr != &(((sraSpanList*)dst)->back)) {
+    vcurr->start += dy;
+    vcurr->end += dy;
+    
+    hcurr = vcurr->subspan->front._next;
+    while (hcurr != &(vcurr->subspan->back)) {
+      hcurr->start += dx;
+      hcurr->end += dx;
+      hcurr = hcurr->_next;
+    }
+
+    vcurr = vcurr->_next;
+  }
+}
+
+sraRegion *sraRgnBBox(const sraRegion *src) {
+  int xmin=((unsigned int)(int)-1)>>1,ymin=xmin,xmax=1-xmin,ymax=xmax;
+  sraSpan *vcurr, *hcurr;
+
+  if(!src)
+    return sraRgnCreate();
+
+  vcurr = ((sraSpanList*)src)->front._next;
+  while (vcurr != &(((sraSpanList*)src)->back)) {
+    if(vcurr->start<ymin)
+      ymin=vcurr->start;
+    if(vcurr->end>ymax)
+      ymax=vcurr->end;
+    
+    hcurr = vcurr->subspan->front._next;
+    while (hcurr != &(vcurr->subspan->back)) {
+      if(hcurr->start<xmin)
+	xmin=hcurr->start;
+      if(hcurr->end>xmax)
+	xmax=hcurr->end;
+      hcurr = hcurr->_next;
+    }
+
+    vcurr = vcurr->_next;
+  }
+
+  if(xmax<xmin || ymax<ymin)
+    return sraRgnCreate();
+
+  return sraRgnCreateRect(xmin,ymin,xmax,ymax);
+}
+
+rfbBool
+sraRgnPopRect(sraRegion *rgn, sraRect *rect, unsigned long flags) {
+  sraSpan *vcurr, *hcurr;
+  sraSpan *vend, *hend;
+  rfbBool right2left = flags & 2;
+  rfbBool bottom2top = flags & 1;
+
+  /* - Pick correct order */
+  if (bottom2top) {
+    vcurr = ((sraSpanList*)rgn)->back._prev;
+    vend = &(((sraSpanList*)rgn)->front);
+  } else {
+    vcurr = ((sraSpanList*)rgn)->front._next;
+    vend = &(((sraSpanList*)rgn)->back);
+  }
+
+  if (vcurr != vend) {
+    rect->y1 = vcurr->start;
+    rect->y2 = vcurr->end;
+
+    /* - Pick correct order */
+    if (right2left) {
+      hcurr = vcurr->subspan->back._prev;
+      hend = &(vcurr->subspan->front);
+    } else {
+      hcurr = vcurr->subspan->front._next;
+      hend = &(vcurr->subspan->back);
+    }
+
+    if (hcurr != hend) {
+      rect->x1 = hcurr->start;
+      rect->x2 = hcurr->end;
+
+      sraSpanRemove(hcurr);
+      sraSpanDestroy(hcurr);
+      
+      if (sraSpanListEmpty(vcurr->subspan)) {
+	sraSpanRemove(vcurr);
+	sraSpanDestroy(vcurr);
+      }
+
+#if 0
+      printf("poprect:(%dx%d)-(%dx%d)\n",
+	     rect->x1, rect->y1, rect->x2, rect->y2);
+#endif
+      return 1;
+    }
+  }
+
+  return 0;
+}
+
+unsigned long
+sraRgnCountRects(const sraRegion *rgn) {
+  unsigned long count = sraSpanListCount((sraSpanList*)rgn);
+  return count;
+}
+
+rfbBool
+sraRgnEmpty(const sraRegion *rgn) {
+  return sraSpanListEmpty((sraSpanList*)rgn);
+}
+
+/* iterator stuff */
+sraRectangleIterator *sraRgnGetIterator(sraRegion *s)
+{
+  /* these values have to be multiples of 4 */
+#define DEFSIZE 4
+#define DEFSTEP 8
+  sraRectangleIterator *i =
+    (sraRectangleIterator*)malloc(sizeof(sraRectangleIterator));
+  if(!i)
+    return(0);
+
+  /* we have to recurse eventually. So, the first sPtr is the pointer to
+     the sraSpan in the first level. the second sPtr is the pointer to
+     the sraRegion.back. The third and fourth sPtr are for the second
+     recursion level and so on. */
+  i->sPtrs = (sraSpan**)malloc(sizeof(sraSpan*)*DEFSIZE);
+  if(!i->sPtrs) {
+    free(i);
+    return(0);
+  }
+  i->ptrSize = DEFSIZE;
+  i->sPtrs[0] = &(s->front);
+  i->sPtrs[1] = &(s->back);
+  i->ptrPos = 0;
+  i->reverseX = 0;
+  i->reverseY = 0;
+  return(i);
+}
+
+sraRectangleIterator *sraRgnGetReverseIterator(sraRegion *s,rfbBool reverseX,rfbBool reverseY)
+{
+  sraRectangleIterator *i = sraRgnGetIterator(s);
+  if(reverseY) {
+    i->sPtrs[1] = &(s->front);
+    i->sPtrs[0] = &(s->back);
+  }
+  i->reverseX = reverseX;
+  i->reverseY = reverseY;
+  return(i);
+}
+
+rfbBool sraReverse(sraRectangleIterator *i)
+{
+  return( ((i->ptrPos&2) && i->reverseX) ||
+     (!(i->ptrPos&2) && i->reverseY));
+}
+
+sraSpan* sraNextSpan(sraRectangleIterator *i)
+{
+  if(sraReverse(i))
+    return(i->sPtrs[i->ptrPos]->_prev);
+  else
+    return(i->sPtrs[i->ptrPos]->_next);
+}
+
+rfbBool sraRgnIteratorNext(sraRectangleIterator* i,sraRect* r)
+{
+  /* is the subspan finished? */
+  while(sraNextSpan(i) == i->sPtrs[i->ptrPos+1]) {
+    i->ptrPos -= 2;
+    if(i->ptrPos < 0) /* the end */
+      return(0);
+  }
+
+  i->sPtrs[i->ptrPos] = sraNextSpan(i);
+
+  /* is this a new subspan? */
+  while(i->sPtrs[i->ptrPos]->subspan) {
+    if(i->ptrPos+2 > i->ptrSize) { /* array is too small */
+      i->ptrSize += DEFSTEP;
+      i->sPtrs = (sraSpan**)realloc(i->sPtrs, sizeof(sraSpan*)*i->ptrSize);
+    }
+    i->ptrPos =+ 2;
+    if(sraReverse(i)) {
+      i->sPtrs[i->ptrPos]   =   i->sPtrs[i->ptrPos-2]->subspan->back._prev;
+      i->sPtrs[i->ptrPos+1] = &(i->sPtrs[i->ptrPos-2]->subspan->front);
+    } else {
+      i->sPtrs[i->ptrPos]   =   i->sPtrs[i->ptrPos-2]->subspan->front._next;
+      i->sPtrs[i->ptrPos+1] = &(i->sPtrs[i->ptrPos-2]->subspan->back);
+    }
+  }
+
+  if((i->ptrPos%4)!=2) {
+    rfbErr("sraRgnIteratorNext: offset is wrong (%d%%4!=2)\n",i->ptrPos);
+    return FALSE;
+  }
+
+  r->y1 = i->sPtrs[i->ptrPos-2]->start;
+  r->y2 = i->sPtrs[i->ptrPos-2]->end;
+  r->x1 = i->sPtrs[i->ptrPos]->start;
+  r->x2 = i->sPtrs[i->ptrPos]->end;
+
+  return(-1);
+}
+
+void sraRgnReleaseIterator(sraRectangleIterator* i)
+{
+  free(i->sPtrs);
+  free(i);
+}
+
+void
+sraRgnPrint(const sraRegion *rgn) {
+	sraSpanListPrint((sraSpanList*)rgn);
+}
+
+rfbBool
+sraClipRect(int *x, int *y, int *w, int *h,
+	    int cx, int cy, int cw, int ch) {
+  if (*x < cx) {
+    *w -= (cx-*x);
+    *x = cx;
+  }
+  if (*y < cy) {
+    *h -= (cy-*y);
+    *y = cy;
+  }
+  if (*x+*w > cx+cw) {
+    *w = (cx+cw)-*x;
+  }
+  if (*y+*h > cy+ch) {
+    *h = (cy+ch)-*y;
+  }
+  return (*w>0) && (*h>0);
+}
+
+/* test */
+
+#ifdef SRA_TEST
+/* pipe the output to sort|uniq -u and you'll get the errors. */
+int main(int argc, char** argv)
+{
+  sraRegionPtr region, region1, region2;
+  sraRectangleIterator* i;
+  sraRect rect;
+  rfbBool b;
+
+  region = sraRgnCreateRect(10, 10, 600, 300);
+  region1 = sraRgnCreateRect(40, 50, 350, 200);
+  region2 = sraRgnCreateRect(0, 0, 20, 40);
+
+  sraRgnPrint(region);
+  printf("\n[(10-300)[(10-600)]]\n\n");
+
+  b = sraRgnSubtract(region, region1);
+  printf("%s ",b?"true":"false");
+  sraRgnPrint(region);
+  printf("\ntrue [(10-50)[(10-600)](50-200)[(10-40)(350-600)](200-300)[(10-600)]]\n\n");
+
+  sraRgnOr(region, region2);
+  printf("%ld\n6\n\n", sraRgnCountRects(region));
+
+  i = sraRgnGetIterator(region);
+  while(sraRgnIteratorNext(i, &rect))
+    printf("%dx%d+%d+%d ",
+	   rect.x2-rect.x1,rect.y2-rect.y1,
+	   rect.x1,rect.y1);
+  sraRgnReleaseIterator(i);
+  printf("\n20x10+0+0 600x30+0+10 590x10+10+40 30x150+10+50 250x150+350+50 590x100+10+200 \n\n");
+
+  i = sraRgnGetReverseIterator(region,1,0);
+  while(sraRgnIteratorNext(i, &rect))
+    printf("%dx%d+%d+%d ",
+	   rect.x2-rect.x1,rect.y2-rect.y1,
+	   rect.x1,rect.y1);
+  sraRgnReleaseIterator(i);
+  printf("\n20x10+0+0 600x30+0+10 590x10+10+40 250x150+350+50 30x150+10+50 590x100+10+200 \n\n");
+
+  i = sraRgnGetReverseIterator(region,1,1);
+  while(sraRgnIteratorNext(i, &rect))
+    printf("%dx%d+%d+%d ",
+	   rect.x2-rect.x1,rect.y2-rect.y1,
+	   rect.x1,rect.y1);
+  sraRgnReleaseIterator(i);
+  printf("\n590x100+10+200 250x150+350+50 30x150+10+50 590x10+10+40 600x30+0+10 20x10+0+0 \n\n");
+
+  sraRgnDestroy(region);
+  sraRgnDestroy(region1);
+  sraRgnDestroy(region2);
+
+  return(0);
+}
+#endif
diff --git a/libvncserver/rfbserver.c b/libvncserver/rfbserver.c
new file mode 100644
index 0000000..e22283e
--- /dev/null
+++ b/libvncserver/rfbserver.c
@@ -0,0 +1,1808 @@
+/*
+ * rfbserver.c - deal with server-side of the RFB protocol.
+ */
+
+/*
+ *  Copyright (C) 2002 RealVNC Ltd.
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <string.h>
+#include <rfb/rfb.h>
+#include <rfb/rfbregion.h>
+
+#ifdef LIBVNCSERVER_HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
+#ifdef WIN32
+#define write(sock,buf,len) send(sock,buf,len,0)
+#else
+#ifdef LIBVNCSERVER_HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <pwd.h>
+#ifdef LIBVNCSERVER_HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#endif
+#endif
+
+#ifdef CORBA
+#include <vncserverctrl.h>
+#endif
+
+#ifdef DEBUGPROTO
+#undef DEBUGPROTO
+#define DEBUGPROTO(x) x
+#else
+#define DEBUGPROTO(x)
+#endif
+
+rfbClientPtr pointerClient = NULL;  /* Mutex for pointer events */
+
+static void rfbProcessClientProtocolVersion(rfbClientPtr cl);
+static void rfbProcessClientNormalMessage(rfbClientPtr cl);
+static void rfbProcessClientInitMessage(rfbClientPtr cl);
+
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+void rfbIncrClientRef(rfbClientPtr cl)
+{
+  LOCK(cl->refCountMutex);
+  cl->refCount++;
+  UNLOCK(cl->refCountMutex);
+}
+
+void rfbDecrClientRef(rfbClientPtr cl)
+{
+  LOCK(cl->refCountMutex);
+  cl->refCount--;
+  if(cl->refCount<=0) /* just to be sure also < 0 */
+    TSIGNAL(cl->deleteCond);
+  UNLOCK(cl->refCountMutex);
+}
+#else
+void rfbIncrClientRef(rfbClientPtr cl) {}
+void rfbDecrClientRef(rfbClientPtr cl) {}
+#endif
+
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+MUTEX(rfbClientListMutex);
+#endif
+
+struct rfbClientIterator {
+  rfbClientPtr next;
+  rfbScreenInfoPtr screen;
+};
+
+void
+rfbClientListInit(rfbScreenInfoPtr rfbScreen)
+{
+    if(sizeof(rfbBool)!=1) {
+        /* a sanity check */
+        fprintf(stderr,"rfbBool's size is not 1 (%d)!\n",sizeof(rfbBool));
+	/* we cannot continue, because rfbBool is supposed to be char everywhere */
+	exit(1);
+    }
+    rfbScreen->rfbClientHead = NULL;
+    INIT_MUTEX(rfbClientListMutex);
+}
+
+rfbClientIteratorPtr
+rfbGetClientIterator(rfbScreenInfoPtr rfbScreen)
+{
+  rfbClientIteratorPtr i =
+    (rfbClientIteratorPtr)malloc(sizeof(struct rfbClientIterator));
+  i->next = 0;
+  i->screen = rfbScreen;
+  return i;
+}
+
+rfbClientPtr
+rfbClientIteratorHead(rfbClientIteratorPtr i)
+{
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+  if(i->next != 0) {
+    rfbDecrClientRef(i->next);
+    rfbIncrClientRef(i->screen->rfbClientHead);
+  }
+#endif
+  LOCK(rfbClientListMutex);
+  i->next = i->screen->rfbClientHead;
+  UNLOCK(rfbClientListMutex);
+  return i->next;
+}
+
+rfbClientPtr
+rfbClientIteratorNext(rfbClientIteratorPtr i)
+{
+  if(i->next == 0) {
+    LOCK(rfbClientListMutex);
+    i->next = i->screen->rfbClientHead;
+    UNLOCK(rfbClientListMutex);
+  } else {
+    IF_PTHREADS(rfbClientPtr cl = i->next);
+    i->next = i->next->next;
+    IF_PTHREADS(rfbDecrClientRef(cl));
+  }
+
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+    while(i->next && i->next->sock<0)
+      i->next = i->next->next;
+    if(i->next)
+      rfbIncrClientRef(i->next);
+#endif
+
+    return i->next;
+}
+
+void
+rfbReleaseClientIterator(rfbClientIteratorPtr iterator)
+{
+  IF_PTHREADS(if(iterator->next) rfbDecrClientRef(iterator->next));
+  free(iterator);
+}
+
+
+/*
+ * rfbNewClientConnection is called from sockets.c when a new connection
+ * comes in.
+ */
+
+void
+rfbNewClientConnection(rfbScreen,sock)
+    rfbScreenInfoPtr rfbScreen;
+    int sock;
+{
+    rfbClientPtr cl;
+
+    cl = rfbNewClient(rfbScreen,sock);
+#ifdef CORBA
+    if(cl!=NULL)
+      newConnection(cl, (KEYBOARD_DEVICE|POINTER_DEVICE),1,1,1);
+#endif
+}
+
+
+/*
+ * rfbReverseConnection is called by the CORBA stuff to make an outward
+ * connection to a "listening" RFB client.
+ */
+
+rfbClientPtr
+rfbReverseConnection(rfbScreen,host, port)
+    rfbScreenInfoPtr rfbScreen;
+    char *host;
+    int port;
+{
+    int sock;
+    rfbClientPtr cl;
+
+    if ((sock = rfbConnect(rfbScreen, host, port)) < 0)
+        return (rfbClientPtr)NULL;
+
+    cl = rfbNewClient(rfbScreen, sock);
+
+    if (cl) {
+        cl->reverseConnection = TRUE;
+    }
+
+    return cl;
+}
+
+
+/*
+ * rfbNewClient is called when a new connection has been made by whatever
+ * means.
+ */
+
+rfbClientPtr
+rfbNewTCPOrUDPClient(rfbScreen,sock,isUDP)
+    rfbScreenInfoPtr rfbScreen;
+    int sock;
+    rfbBool isUDP;
+{
+    rfbProtocolVersionMsg pv;
+    rfbClientIteratorPtr iterator;
+    rfbClientPtr cl,cl_;
+    struct sockaddr_in addr;
+    size_t addrlen = sizeof(struct sockaddr_in);
+
+    cl = (rfbClientPtr)calloc(sizeof(rfbClientRec),1);
+
+    cl->screen = rfbScreen;
+    cl->sock = sock;
+    cl->viewOnly = FALSE;
+
+    rfbResetStats(cl);
+
+    if(isUDP) {
+      rfbLog(" accepted UDP client\n");
+    } else {
+      int one=1;
+
+      getpeername(sock, (struct sockaddr *)&addr, &addrlen);
+      cl->host = strdup(inet_ntoa(addr.sin_addr));
+
+      rfbLog("  other clients:\n");
+      iterator = rfbGetClientIterator(rfbScreen);
+      while ((cl_ = rfbClientIteratorNext(iterator)) != NULL) {
+        rfbLog("     %s\n",cl_->host);
+      }
+      rfbReleaseClientIterator(iterator);
+
+#ifndef WIN32
+      if (fcntl(sock, F_SETFL, O_NONBLOCK) < 0) {
+	rfbLogPerror("fcntl failed");
+	close(sock);
+	return NULL;
+      }
+#endif
+
+      if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
+		     (char *)&one, sizeof(one)) < 0) {
+	rfbLogPerror("setsockopt failed");
+	close(sock);
+	return NULL;
+      }
+
+      FD_SET(sock,&(rfbScreen->allFds));
+		rfbScreen->maxFd = max(sock,rfbScreen->maxFd);
+
+      INIT_MUTEX(cl->outputMutex);
+      INIT_MUTEX(cl->refCountMutex);
+      INIT_COND(cl->deleteCond);
+
+      cl->state = RFB_PROTOCOL_VERSION;
+
+      cl->reverseConnection = FALSE;
+      cl->readyForSetColourMapEntries = FALSE;
+      cl->useCopyRect = FALSE;
+      cl->preferredEncoding = rfbEncodingRaw;
+      cl->correMaxWidth = 48;
+      cl->correMaxHeight = 48;
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+      cl->zrleData = 0;
+#endif
+
+      cl->copyRegion = sraRgnCreate();
+      cl->copyDX = 0;
+      cl->copyDY = 0;
+   
+      cl->modifiedRegion =
+	sraRgnCreateRect(0,0,rfbScreen->width,rfbScreen->height);
+
+      INIT_MUTEX(cl->updateMutex);
+      INIT_COND(cl->updateCond);
+
+      cl->requestedRegion = sraRgnCreate();
+
+      cl->format = cl->screen->rfbServerFormat;
+      cl->translateFn = rfbTranslateNone;
+      cl->translateLookupTable = NULL;
+
+      LOCK(rfbClientListMutex);
+
+      IF_PTHREADS(cl->refCount = 0);
+      cl->next = rfbScreen->rfbClientHead;
+      cl->prev = NULL;
+      if (rfbScreen->rfbClientHead)
+        rfbScreen->rfbClientHead->prev = cl;
+
+      rfbScreen->rfbClientHead = cl;
+      UNLOCK(rfbClientListMutex);
+
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+      cl->tightCompressLevel = TIGHT_DEFAULT_COMPRESSION;
+      cl->tightQualityLevel = -1;
+      {
+	int i;
+	for (i = 0; i < 4; i++)
+          cl->zsActive[i] = FALSE;
+      }
+#endif
+
+      cl->enableCursorShapeUpdates = FALSE;
+      cl->enableCursorPosUpdates = FALSE;
+      cl->useRichCursorEncoding = FALSE;
+      cl->enableLastRectEncoding = FALSE;
+      cl->useNewFBSize = FALSE;
+
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+      cl->compStreamInited = FALSE;
+      cl->compStream.total_in = 0;
+      cl->compStream.total_out = 0;
+      cl->compStream.zalloc = Z_NULL;
+      cl->compStream.zfree = Z_NULL;
+      cl->compStream.opaque = Z_NULL;
+
+      cl->zlibCompressLevel = 5;
+#endif
+
+      cl->progressiveSliceY = 0;
+
+      sprintf(pv,rfbProtocolVersionFormat,rfbProtocolMajorVersion,
+	      rfbProtocolMinorVersion);
+
+      if (WriteExact(cl, pv, sz_rfbProtocolVersionMsg) < 0) {
+        rfbLogPerror("rfbNewClient: write");
+        rfbCloseClient(cl);
+	/* TODO: memory leak here (cl is never freed)
+	 * can rfbClientConnectionGone called at this time?
+	 * tim@tjansen.de
+	 */
+        return NULL;
+      }
+    }
+
+    cl->clientData = NULL;
+    cl->clientGoneHook = doNothingWithClient;
+    switch (cl->screen->newClientHook(cl)) {
+    case RFB_CLIENT_ON_HOLD:
+	    cl->onHold = TRUE;
+	    break;
+    case RFB_CLIENT_ACCEPT:
+	    cl->onHold = FALSE;
+	    break;
+    case RFB_CLIENT_REFUSE:
+	    rfbCloseClient(cl);
+	    rfbClientConnectionGone(cl);
+	    cl = NULL;
+	    break;
+    }
+    return cl;
+}
+
+rfbClientPtr
+rfbNewClient(rfbScreen,sock)
+    rfbScreenInfoPtr rfbScreen;
+    int sock;
+{
+  return(rfbNewTCPOrUDPClient(rfbScreen,sock,FALSE));
+}
+
+rfbClientPtr
+rfbNewUDPClient(rfbScreen)
+     rfbScreenInfoPtr rfbScreen;
+{
+  return((rfbScreen->udpClient=
+	  rfbNewTCPOrUDPClient(rfbScreen,rfbScreen->udpSock,TRUE)));
+}
+
+/*
+ * rfbClientConnectionGone is called from sockets.c just after a connection
+ * has gone away.
+ */
+
+void
+rfbClientConnectionGone(cl)
+     rfbClientPtr cl;
+{
+    int i;
+
+    LOCK(rfbClientListMutex);
+
+    if (cl->prev)
+        cl->prev->next = cl->next;
+    else
+        cl->screen->rfbClientHead = cl->next;
+    if (cl->next)
+        cl->next->prev = cl->prev;
+
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+    FreeZrleData(cl);
+#endif
+
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+    if(cl->screen->backgroundLoop != FALSE)
+      do {
+	LOCK(cl->refCountMutex);
+	i=cl->refCount;
+	UNLOCK(cl->refCountMutex);
+	if(i>0)
+	  WAIT(cl->deleteCond,cl->refCountMutex);
+      } while(i>0);
+#endif
+
+    if(cl->sock>=0)
+       FD_CLR(cl->sock,&(cl->screen->allFds));
+
+    cl->clientGoneHook(cl);
+
+    rfbLog("Client %s gone\n",cl->host);
+    free(cl->host);
+
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+    /* Release the compression state structures if any. */
+    if ( cl->compStreamInited ) {
+	deflateEnd( &(cl->compStream) );
+    }
+
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+    for (i = 0; i < 4; i++) {
+	if (cl->zsActive[i])
+	    deflateEnd(&cl->zsStruct[i]);
+    }
+#endif
+#endif
+
+    if (pointerClient == cl)
+        pointerClient = NULL;
+
+    sraRgnDestroy(cl->modifiedRegion);
+    sraRgnDestroy(cl->requestedRegion);
+    sraRgnDestroy(cl->copyRegion);
+
+    UNLOCK(rfbClientListMutex);
+
+    if (cl->translateLookupTable) free(cl->translateLookupTable);
+
+    TINI_COND(cl->updateCond);
+    TINI_MUTEX(cl->updateMutex);
+
+    LOCK(cl->outputMutex);
+    TINI_MUTEX(cl->outputMutex);
+
+#ifdef CORBA
+    destroyConnection(cl);
+#endif
+
+    rfbPrintStats(cl);
+
+    free(cl);
+}
+
+
+/*
+ * rfbProcessClientMessage is called when there is data to read from a client.
+ */
+
+void
+rfbProcessClientMessage(cl)
+     rfbClientPtr cl;
+{
+    switch (cl->state) {
+    case RFB_PROTOCOL_VERSION:
+        rfbProcessClientProtocolVersion(cl);
+        return;
+    case RFB_AUTHENTICATION:
+        rfbAuthProcessClientMessage(cl);
+        return;
+    case RFB_INITIALISATION:
+        rfbProcessClientInitMessage(cl);
+        return;
+    default:
+        rfbProcessClientNormalMessage(cl);
+        return;
+    }
+}
+
+
+/*
+ * rfbProcessClientProtocolVersion is called when the client sends its
+ * protocol version.
+ */
+
+static void
+rfbProcessClientProtocolVersion(cl)
+    rfbClientPtr cl;
+{
+    rfbProtocolVersionMsg pv;
+    int n, major_, minor_;
+    char failureReason[256];
+
+    if ((n = ReadExact(cl, pv, sz_rfbProtocolVersionMsg)) <= 0) {
+        if (n == 0)
+            rfbLog("rfbProcessClientProtocolVersion: client gone\n");
+        else
+            rfbLogPerror("rfbProcessClientProtocolVersion: read");
+        rfbCloseClient(cl);
+        return;
+    }
+
+    pv[sz_rfbProtocolVersionMsg] = 0;
+    if (sscanf(pv,rfbProtocolVersionFormat,&major_,&minor_) != 2) {
+        char name[1024]; 
+	if(sscanf(pv,"RFB %03d.%03d %1024s\n",&major_,&minor_,name) != 3) {
+	    rfbErr("rfbProcessClientProtocolVersion: not a valid RFB client\n");
+	    rfbCloseClient(cl);
+	    return;
+	}
+	free(cl->host);
+	cl->host=strdup(name);
+    }
+    rfbLog("Protocol version %d.%d\n", major_, minor_);
+
+    if (major_ != rfbProtocolMajorVersion) {
+        /* Major version mismatch - send a ConnFailed message */
+
+        rfbErr("Major version mismatch\n");
+        sprintf(failureReason,
+                "RFB protocol version mismatch - server %d.%d, client %d.%d",
+                rfbProtocolMajorVersion,rfbProtocolMinorVersion,major_,minor_);
+        rfbClientConnFailed(cl, failureReason);
+        return;
+    }
+
+    if (minor_ != rfbProtocolMinorVersion) {
+        /* Minor version mismatch - warn but try to continue */
+        rfbLog("Ignoring minor version mismatch\n");
+    }
+
+    rfbAuthNewClient(cl);
+}
+
+
+/*
+ * rfbClientConnFailed is called when a client connection has failed either
+ * because it talks the wrong protocol or it has failed authentication.
+ */
+
+void
+rfbClientConnFailed(cl, reason)
+    rfbClientPtr cl;
+    char *reason;
+{
+    char *buf;
+    int len = strlen(reason);
+
+    buf = (char *)malloc(8 + len);
+    ((uint32_t *)buf)[0] = Swap32IfLE(rfbConnFailed);
+    ((uint32_t *)buf)[1] = Swap32IfLE(len);
+    memcpy(buf + 8, reason, len);
+
+    if (WriteExact(cl, buf, 8 + len) < 0)
+        rfbLogPerror("rfbClientConnFailed: write");
+    free(buf);
+    rfbCloseClient(cl);
+}
+
+
+/*
+ * rfbProcessClientInitMessage is called when the client sends its
+ * initialisation message.
+ */
+
+static void
+rfbProcessClientInitMessage(cl)
+    rfbClientPtr cl;
+{
+    rfbClientInitMsg ci;
+    char buf[256];
+    rfbServerInitMsg *si = (rfbServerInitMsg *)buf;
+    int len, n;
+    rfbClientIteratorPtr iterator;
+    rfbClientPtr otherCl;
+
+    if ((n = ReadExact(cl, (char *)&ci,sz_rfbClientInitMsg)) <= 0) {
+        if (n == 0)
+            rfbLog("rfbProcessClientInitMessage: client gone\n");
+        else
+            rfbLogPerror("rfbProcessClientInitMessage: read");
+        rfbCloseClient(cl);
+        return;
+    }
+
+    si->framebufferWidth = Swap16IfLE(cl->screen->width);
+    si->framebufferHeight = Swap16IfLE(cl->screen->height);
+    si->format = cl->screen->rfbServerFormat;
+    si->format.redMax = Swap16IfLE(si->format.redMax);
+    si->format.greenMax = Swap16IfLE(si->format.greenMax);
+    si->format.blueMax = Swap16IfLE(si->format.blueMax);
+
+    if (strlen(cl->screen->desktopName) > 128)      /* sanity check on desktop name len */
+        ((char*)cl->screen->desktopName)[128] = 0;
+
+    strcpy(buf + sz_rfbServerInitMsg, cl->screen->desktopName);
+    len = strlen(buf + sz_rfbServerInitMsg);
+    si->nameLength = Swap32IfLE(len);
+
+    if (WriteExact(cl, buf, sz_rfbServerInitMsg + len) < 0) {
+        rfbLogPerror("rfbProcessClientInitMessage: write");
+        rfbCloseClient(cl);
+        return;
+    }
+
+    cl->state = RFB_NORMAL;
+
+    if (!cl->reverseConnection &&
+                        (cl->screen->rfbNeverShared || (!cl->screen->rfbAlwaysShared && !ci.shared))) {
+
+        if (cl->screen->rfbDontDisconnect) {
+            iterator = rfbGetClientIterator(cl->screen);
+            while ((otherCl = rfbClientIteratorNext(iterator)) != NULL) {
+                if ((otherCl != cl) && (otherCl->state == RFB_NORMAL)) {
+                    rfbLog("-dontdisconnect: Not shared & existing client\n");
+                    rfbLog("  refusing new client %s\n", cl->host);
+                    rfbCloseClient(cl);
+                    rfbReleaseClientIterator(iterator);
+                    return;
+                }
+            }
+            rfbReleaseClientIterator(iterator);
+        } else {
+            iterator = rfbGetClientIterator(cl->screen);
+            while ((otherCl = rfbClientIteratorNext(iterator)) != NULL) {
+                if ((otherCl != cl) && (otherCl->state == RFB_NORMAL)) {
+                    rfbLog("Not shared - closing connection to client %s\n",
+                           otherCl->host);
+                    rfbCloseClient(otherCl);
+                }
+            }
+            rfbReleaseClientIterator(iterator);
+        }
+    }
+}
+
+static rfbBool rectSwapIfLEAndClip(uint16_t* x,uint16_t* y,uint16_t* w,uint16_t* h,
+		rfbScreenInfoPtr screen)
+{
+	*x=Swap16IfLE(*x);
+	*y=Swap16IfLE(*y);
+	*w=Swap16IfLE(*w);
+	*h=Swap16IfLE(*h);
+	if(*w>screen->width-*x)
+		*w=screen->width-*x;
+	/* possible underflow */
+	if(*w>screen->width-*x)
+		return FALSE;
+	if(*h>screen->height-*y)
+		*h=screen->height-*y;
+	if(*h>screen->height-*y)
+		return FALSE;
+
+	return TRUE;
+}
+
+/*
+ * rfbProcessClientNormalMessage is called when the client has sent a normal
+ * protocol message.
+ */
+
+static void
+rfbProcessClientNormalMessage(cl)
+    rfbClientPtr cl;
+{
+    int n=0;
+    rfbClientToServerMsg msg;
+    char *str;
+
+    if ((n = ReadExact(cl, (char *)&msg, 1)) <= 0) {
+        if (n != 0)
+            rfbLogPerror("rfbProcessClientNormalMessage: read");
+        rfbCloseClient(cl);
+        return;
+    }
+
+    switch (msg.type) {
+
+    case rfbSetPixelFormat:
+
+        if ((n = ReadExact(cl, ((char *)&msg) + 1,
+                           sz_rfbSetPixelFormatMsg - 1)) <= 0) {
+            if (n != 0)
+                rfbLogPerror("rfbProcessClientNormalMessage: read");
+            rfbCloseClient(cl);
+            return;
+        }
+
+        cl->format.bitsPerPixel = msg.spf.format.bitsPerPixel;
+        cl->format.depth = msg.spf.format.depth;
+        cl->format.bigEndian = (msg.spf.format.bigEndian ? TRUE : FALSE);
+        cl->format.trueColour = (msg.spf.format.trueColour ? TRUE : FALSE);
+        cl->format.redMax = Swap16IfLE(msg.spf.format.redMax);
+        cl->format.greenMax = Swap16IfLE(msg.spf.format.greenMax);
+        cl->format.blueMax = Swap16IfLE(msg.spf.format.blueMax);
+        cl->format.redShift = msg.spf.format.redShift;
+        cl->format.greenShift = msg.spf.format.greenShift;
+        cl->format.blueShift = msg.spf.format.blueShift;
+
+	cl->readyForSetColourMapEntries = TRUE;
+        cl->screen->setTranslateFunction(cl);
+
+        return;
+
+
+    case rfbFixColourMapEntries:
+        if ((n = ReadExact(cl, ((char *)&msg) + 1,
+                           sz_rfbFixColourMapEntriesMsg - 1)) <= 0) {
+            if (n != 0)
+                rfbLogPerror("rfbProcessClientNormalMessage: read");
+            rfbCloseClient(cl);
+            return;
+        }
+        rfbLog("rfbProcessClientNormalMessage: %s",
+                "FixColourMapEntries unsupported\n");
+        rfbCloseClient(cl);
+        return;
+
+
+    case rfbSetEncodings:
+    {
+        int i;
+        uint32_t enc;
+
+        if ((n = ReadExact(cl, ((char *)&msg) + 1,
+                           sz_rfbSetEncodingsMsg - 1)) <= 0) {
+            if (n != 0)
+                rfbLogPerror("rfbProcessClientNormalMessage: read");
+            rfbCloseClient(cl);
+            return;
+        }
+
+        msg.se.nEncodings = Swap16IfLE(msg.se.nEncodings);
+
+        cl->preferredEncoding = -1;
+	cl->useCopyRect = FALSE;
+	cl->enableCursorShapeUpdates = FALSE;
+	cl->enableCursorPosUpdates = FALSE;
+	cl->enableLastRectEncoding = FALSE;
+        cl->useNewFBSize = FALSE;
+
+        for (i = 0; i < msg.se.nEncodings; i++) {
+            if ((n = ReadExact(cl, (char *)&enc, 4)) <= 0) {
+                if (n != 0)
+                    rfbLogPerror("rfbProcessClientNormalMessage: read");
+                rfbCloseClient(cl);
+                return;
+            }
+            enc = Swap32IfLE(enc);
+
+            switch (enc) {
+
+            case rfbEncodingCopyRect:
+		cl->useCopyRect = TRUE;
+                break;
+            case rfbEncodingRaw:
+                if (cl->preferredEncoding == -1) {
+                    cl->preferredEncoding = enc;
+                    rfbLog("Using raw encoding for client %s\n",
+                           cl->host);
+                }
+                break;
+            case rfbEncodingRRE:
+                if (cl->preferredEncoding == -1) {
+                    cl->preferredEncoding = enc;
+                    rfbLog("Using rre encoding for client %s\n",
+                           cl->host);
+                }
+                break;
+            case rfbEncodingCoRRE:
+                if (cl->preferredEncoding == -1) {
+                    cl->preferredEncoding = enc;
+                    rfbLog("Using CoRRE encoding for client %s\n",
+                           cl->host);
+                }
+                break;
+            case rfbEncodingHextile:
+                if (cl->preferredEncoding == -1) {
+                    cl->preferredEncoding = enc;
+                    rfbLog("Using hextile encoding for client %s\n",
+                           cl->host);
+                }
+                break;
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+	    case rfbEncodingZlib:
+		if (cl->preferredEncoding == -1) {
+		    cl->preferredEncoding = enc;
+		    rfbLog("Using zlib encoding for client %s\n",
+			   cl->host);
+		}
+              break;
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+	    case rfbEncodingTight:
+		if (cl->preferredEncoding == -1) {
+		    cl->preferredEncoding = enc;
+		    rfbLog("Using tight encoding for client %s\n",
+			   cl->host);
+		}
+		break;
+#endif
+#endif
+	    case rfbEncodingXCursor:
+		if(!cl->screen->dontConvertRichCursorToXCursor) {
+		    rfbLog("Enabling X-style cursor updates for client %s\n",
+			   cl->host);
+		    cl->enableCursorShapeUpdates = TRUE;
+		    cl->cursorWasChanged = TRUE;
+		}
+		break;
+	    case rfbEncodingRichCursor:
+	        rfbLog("Enabling full-color cursor updates for client %s\n",
+		       cl->host);
+	        cl->enableCursorShapeUpdates = TRUE;
+	        cl->useRichCursorEncoding = TRUE;
+	        cl->cursorWasChanged = TRUE;
+	        break;
+	    case rfbEncodingPointerPos:
+		if (!cl->enableCursorPosUpdates) {
+		    rfbLog("Enabling cursor position updates for client %s\n",
+			   cl->host);
+		    cl->enableCursorPosUpdates = TRUE;
+		    cl->cursorWasMoved = TRUE;
+		}
+	        break;
+	    case rfbEncodingLastRect:
+		if (!cl->enableLastRectEncoding) {
+		    rfbLog("Enabling LastRect protocol extension for client "
+			   "%s\n", cl->host);
+		    cl->enableLastRectEncoding = TRUE;
+		}
+		break;
+	    case rfbEncodingNewFBSize:
+		if (!cl->useNewFBSize) {
+		    rfbLog("Enabling NewFBSize protocol extension for client "
+			   "%s\n", cl->host);
+		    cl->useNewFBSize = TRUE;
+		}
+		break;
+#ifdef LIBVNCSERVER_BACKCHANNEL
+	    case rfbEncodingBackChannel:
+	        if (!cl->enableBackChannel) {
+		    rfbLog("Enabling BackChannel protocol extension for "
+			   "client %s\n", cl->host);
+		    cl->enableBackChannel = TRUE;
+		}
+		break;
+#endif
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+           case rfbEncodingZRLE:
+               if (cl->preferredEncoding == -1) {
+                   cl->preferredEncoding = enc;
+                   rfbLog("Using ZRLE encoding for client %s\n",
+                          cl->host);
+               }
+               break;
+#endif
+            default:
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+		if ( enc >= (uint32_t)rfbEncodingCompressLevel0 &&
+		     enc <= (uint32_t)rfbEncodingCompressLevel9 ) {
+		    cl->zlibCompressLevel = enc & 0x0F;
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+		    cl->tightCompressLevel = enc & 0x0F;
+		    rfbLog("Using compression level %d for client %s\n",
+			   cl->tightCompressLevel, cl->host);
+		} else if ( enc >= (uint32_t)rfbEncodingQualityLevel0 &&
+			    enc <= (uint32_t)rfbEncodingQualityLevel9 ) {
+		    cl->tightQualityLevel = enc & 0x0F;
+		    rfbLog("Using image quality level %d for client %s\n",
+			   cl->tightQualityLevel, cl->host);
+#endif
+		} else
+#endif
+		 rfbLog("rfbProcessClientNormalMessage: ignoring unknown "
+                       "encoding type %d\n", (int)enc);
+            }
+        }
+
+        if (cl->preferredEncoding == -1) {
+            cl->preferredEncoding = rfbEncodingRaw;
+        }
+
+	if (cl->enableCursorPosUpdates && !cl->enableCursorShapeUpdates) {
+	  rfbLog("Disabling cursor position updates for client %s\n",
+		 cl->host);
+	  cl->enableCursorPosUpdates = FALSE;
+	}
+
+        return;
+    }
+
+
+    case rfbFramebufferUpdateRequest:
+    {
+        sraRegionPtr tmpRegion;
+
+        if ((n = ReadExact(cl, ((char *)&msg) + 1,
+                           sz_rfbFramebufferUpdateRequestMsg-1)) <= 0) {
+            if (n != 0)
+                rfbLogPerror("rfbProcessClientNormalMessage: read");
+            rfbCloseClient(cl);
+            return;
+        }
+
+	if(!rectSwapIfLEAndClip(&msg.fur.x,&msg.fur.y,&msg.fur.w,&msg.fur.h,
+			cl->screen))
+		return;
+
+	tmpRegion =
+	  sraRgnCreateRect(msg.fur.x,
+			   msg.fur.y,
+			   msg.fur.x+msg.fur.w,
+			   msg.fur.y+msg.fur.h);
+
+        LOCK(cl->updateMutex);
+	sraRgnOr(cl->requestedRegion,tmpRegion);
+
+	if (!cl->readyForSetColourMapEntries) {
+	    /* client hasn't sent a SetPixelFormat so is using server's */
+	    cl->readyForSetColourMapEntries = TRUE;
+	    if (!cl->format.trueColour) {
+		if (!rfbSetClientColourMap(cl, 0, 0)) {
+		    sraRgnDestroy(tmpRegion);
+		    UNLOCK(cl->updateMutex);
+		    return;
+		}
+	    }
+	}
+
+       if (!msg.fur.incremental) {
+	    sraRgnOr(cl->modifiedRegion,tmpRegion);
+	    sraRgnSubtract(cl->copyRegion,tmpRegion);
+       }
+       TSIGNAL(cl->updateCond);
+       UNLOCK(cl->updateMutex);
+
+       sraRgnDestroy(tmpRegion);
+
+       return;
+    }
+
+    case rfbKeyEvent:
+
+	cl->rfbKeyEventsRcvd++;
+
+	if ((n = ReadExact(cl, ((char *)&msg) + 1,
+			   sz_rfbKeyEventMsg - 1)) <= 0) {
+	    if (n != 0)
+		rfbLogPerror("rfbProcessClientNormalMessage: read");
+	    rfbCloseClient(cl);
+	    return;
+	}
+
+	if(!cl->viewOnly) {
+	    cl->screen->kbdAddEvent(msg.ke.down, (rfbKeySym)Swap32IfLE(msg.ke.key), cl);
+	}
+
+        return;
+
+
+    case rfbPointerEvent:
+
+	cl->rfbPointerEventsRcvd++;
+
+	if ((n = ReadExact(cl, ((char *)&msg) + 1,
+			   sz_rfbPointerEventMsg - 1)) <= 0) {
+	    if (n != 0)
+		rfbLogPerror("rfbProcessClientNormalMessage: read");
+	    rfbCloseClient(cl);
+	    return;
+	}
+
+	if (pointerClient && (pointerClient != cl))
+	    return;
+
+	if (msg.pe.buttonMask == 0)
+	    pointerClient = NULL;
+	else
+	    pointerClient = cl;
+
+	if(!cl->viewOnly) {
+	    cl->screen->ptrAddEvent(msg.pe.buttonMask,
+				    Swap16IfLE(msg.pe.x), Swap16IfLE(msg.pe.y), cl);
+	}
+
+        return;
+
+
+    case rfbClientCutText:
+
+	if ((n = ReadExact(cl, ((char *)&msg) + 1,
+			   sz_rfbClientCutTextMsg - 1)) <= 0) {
+	    if (n != 0)
+		rfbLogPerror("rfbProcessClientNormalMessage: read");
+	    rfbCloseClient(cl);
+	    return;
+	}
+
+	if(!cl->viewOnly) {
+	    msg.cct.length = Swap32IfLE(msg.cct.length);
+
+	    str = (char *)malloc(msg.cct.length);
+
+	    if ((n = ReadExact(cl, str, msg.cct.length)) <= 0) {
+		if (n != 0)
+		    rfbLogPerror("rfbProcessClientNormalMessage: read");
+		free(str);
+		rfbCloseClient(cl);
+		return;
+	    }
+
+	    cl->screen->setXCutText(str, msg.cct.length, cl);
+	    free(str);
+	}
+
+        return;
+
+
+    default:
+
+        rfbLog("rfbProcessClientNormalMessage: unknown message type %d\n",
+                msg.type);
+        rfbLog(" ... closing connection\n");
+        rfbCloseClient(cl);
+        return;
+    }
+}
+
+
+
+/*
+ * rfbSendFramebufferUpdate - send the currently pending framebuffer update to
+ * the RFB client.
+ * givenUpdateRegion is not changed.
+ */
+
+rfbBool
+rfbSendFramebufferUpdate(cl, givenUpdateRegion)
+     rfbClientPtr cl;
+     sraRegionPtr givenUpdateRegion;
+{
+    sraRectangleIterator* i;
+    sraRect rect;
+    int nUpdateRegionRects;
+    rfbFramebufferUpdateMsg *fu = (rfbFramebufferUpdateMsg *)cl->updateBuf;
+    sraRegionPtr updateRegion,updateCopyRegion,tmpRegion;
+    int dx, dy;
+    rfbBool sendCursorShape = FALSE;
+    rfbBool sendCursorPos = FALSE;
+
+    if(cl->screen->displayHook)
+      cl->screen->displayHook(cl);
+
+    /*
+     * If framebuffer size was changed and the client supports NewFBSize
+     * encoding, just send NewFBSize marker and return.
+     */
+
+    if (cl->useNewFBSize && cl->newFBSizePending) {
+      LOCK(cl->updateMutex);
+      cl->newFBSizePending = FALSE;
+      UNLOCK(cl->updateMutex);
+      cl->rfbFramebufferUpdateMessagesSent++;
+      fu->type = rfbFramebufferUpdate;
+      fu->nRects = Swap16IfLE(1);
+      cl->ublen = sz_rfbFramebufferUpdateMsg;
+      if (!rfbSendNewFBSize(cl, cl->screen->width, cl->screen->height)) {
+        return FALSE;
+      }
+      return rfbSendUpdateBuf(cl);
+    }
+    
+    /*
+     * If this client understands cursor shape updates, cursor should be
+     * removed from the framebuffer. Otherwise, make sure it's put up.
+     */
+
+    if (cl->enableCursorShapeUpdates) {
+      if (cl->screen->cursorIsDrawn) {
+	rfbUndrawCursor(cl->screen);
+      }
+      if (!cl->screen->cursorIsDrawn && cl->cursorWasChanged &&
+	  cl->readyForSetColourMapEntries)
+	  sendCursorShape = TRUE;
+    } else {
+      if (!cl->screen->cursorIsDrawn) {
+	rfbDrawCursor(cl->screen);
+      }
+    }
+
+    /*
+     * Do we plan to send cursor position update?
+     */
+
+    if (cl->enableCursorPosUpdates && cl->cursorWasMoved)
+      sendCursorPos = TRUE;
+
+    LOCK(cl->updateMutex);
+
+    /*
+     * The modifiedRegion may overlap the destination copyRegion.  We remove
+     * any overlapping bits from the copyRegion (since they'd only be
+     * overwritten anyway).
+     */
+    
+    sraRgnSubtract(cl->copyRegion,cl->modifiedRegion);
+
+    /*
+     * The client is interested in the region requestedRegion.  The region
+     * which should be updated now is the intersection of requestedRegion
+     * and the union of modifiedRegion and copyRegion.  If it's empty then
+     * no update is needed.
+     */
+
+    updateRegion = sraRgnCreateRgn(givenUpdateRegion);
+    if(cl->screen->progressiveSliceHeight>0) {
+	    int height=cl->screen->progressiveSliceHeight,
+	    	y=cl->progressiveSliceY;
+	    sraRegionPtr bbox=sraRgnBBox(updateRegion);
+	    sraRect rect;
+	    if(sraRgnPopRect(bbox,&rect,0)) {
+		sraRegionPtr slice;
+		if(y<rect.y1 || y>=rect.y2)
+		    y=rect.y1;
+	    	slice=sraRgnCreateRect(0,y,cl->screen->width,y+height);
+		sraRgnAnd(updateRegion,slice);
+		sraRgnDestroy(slice);
+	    }
+	    sraRgnDestroy(bbox);
+	    y+=height;
+	    if(y>=cl->screen->height)
+		    y=0;
+	    cl->progressiveSliceY=y;
+    }
+
+    sraRgnOr(updateRegion,cl->copyRegion);
+    if(!sraRgnAnd(updateRegion,cl->requestedRegion) &&
+       !sendCursorShape && !sendCursorPos) {
+      sraRgnDestroy(updateRegion);
+      UNLOCK(cl->updateMutex);
+      return TRUE;
+    }
+
+    /*
+     * We assume that the client doesn't have any pixel data outside the
+     * requestedRegion.  In other words, both the source and destination of a
+     * copy must lie within requestedRegion.  So the region we can send as a
+     * copy is the intersection of the copyRegion with both the requestedRegion
+     * and the requestedRegion translated by the amount of the copy.  We set
+     * updateCopyRegion to this.
+     */
+
+    updateCopyRegion = sraRgnCreateRgn(cl->copyRegion);
+    sraRgnAnd(updateCopyRegion,cl->requestedRegion);
+    tmpRegion = sraRgnCreateRgn(cl->requestedRegion);
+    sraRgnOffset(tmpRegion,cl->copyDX,cl->copyDY);
+    sraRgnAnd(updateCopyRegion,tmpRegion);
+    sraRgnDestroy(tmpRegion);
+    dx = cl->copyDX;
+    dy = cl->copyDY;
+
+    /*
+     * Next we remove updateCopyRegion from updateRegion so that updateRegion
+     * is the part of this update which is sent as ordinary pixel data (i.e not
+     * a copy).
+     */
+
+    sraRgnSubtract(updateRegion,updateCopyRegion);
+
+    /*
+     * Finally we leave modifiedRegion to be the remainder (if any) of parts of
+     * the screen which are modified but outside the requestedRegion.  We also
+     * empty both the requestedRegion and the copyRegion - note that we never
+     * carry over a copyRegion for a future update.
+     */
+
+
+     sraRgnOr(cl->modifiedRegion,cl->copyRegion);
+     sraRgnSubtract(cl->modifiedRegion,updateRegion);
+     sraRgnSubtract(cl->modifiedRegion,updateCopyRegion);
+
+     sraRgnMakeEmpty(cl->requestedRegion);
+     sraRgnMakeEmpty(cl->copyRegion);
+     cl->copyDX = 0;
+     cl->copyDY = 0;
+   
+     UNLOCK(cl->updateMutex);
+   
+   /*
+     * Now send the update.
+     */
+
+    cl->rfbFramebufferUpdateMessagesSent++;
+
+    if (cl->preferredEncoding == rfbEncodingCoRRE) {
+        nUpdateRegionRects = 0;
+
+        for(i = sraRgnGetIterator(updateRegion); sraRgnIteratorNext(i,&rect);){
+            int x = rect.x1;
+            int y = rect.y1;
+            int w = rect.x2 - x;
+            int h = rect.y2 - y;
+            nUpdateRegionRects += (((w-1) / cl->correMaxWidth + 1)
+                                     * ((h-1) / cl->correMaxHeight + 1));
+        }
+	sraRgnReleaseIterator(i);
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+    } else if (cl->preferredEncoding == rfbEncodingZlib) {
+	nUpdateRegionRects = 0;
+
+        for(i = sraRgnGetIterator(updateRegion); sraRgnIteratorNext(i,&rect);){
+            int x = rect.x1;
+            int y = rect.y1;
+            int w = rect.x2 - x;
+            int h = rect.y2 - y;
+	    nUpdateRegionRects += (((h-1) / (ZLIB_MAX_SIZE( w ) / w)) + 1);
+	}
+	sraRgnReleaseIterator(i);
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+    } else if (cl->preferredEncoding == rfbEncodingTight) {
+	nUpdateRegionRects = 0;
+
+        for(i = sraRgnGetIterator(updateRegion); sraRgnIteratorNext(i,&rect);){
+            int x = rect.x1;
+            int y = rect.y1;
+            int w = rect.x2 - x;
+            int h = rect.y2 - y;
+	    int n = rfbNumCodedRectsTight(cl, x, y, w, h);
+	    if (n == 0) {
+		nUpdateRegionRects = 0xFFFF;
+		break;
+	    }
+	    nUpdateRegionRects += n;
+	}
+	sraRgnReleaseIterator(i);
+#endif
+#endif
+    } else {
+        nUpdateRegionRects = sraRgnCountRects(updateRegion);
+    }
+
+    fu->type = rfbFramebufferUpdate;
+    if (nUpdateRegionRects != 0xFFFF) {
+	if(cl->screen->maxRectsPerUpdate>0
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+	   /* Tight encoding counts the rectangles differently */
+	   && cl->preferredEncoding != rfbEncodingTight
+#endif
+	   && nUpdateRegionRects>cl->screen->maxRectsPerUpdate) {
+	    sraRegion* newUpdateRegion = sraRgnBBox(updateRegion);
+	    sraRgnDestroy(updateRegion);
+	    updateRegion = newUpdateRegion;
+	    nUpdateRegionRects = sraRgnCountRects(updateRegion);
+	}
+	fu->nRects = Swap16IfLE((uint16_t)(sraRgnCountRects(updateCopyRegion) +
+					   nUpdateRegionRects +
+					   !!sendCursorShape + !!sendCursorPos));
+    } else {
+	fu->nRects = 0xFFFF;
+    }
+    cl->ublen = sz_rfbFramebufferUpdateMsg;
+
+   if (sendCursorShape) {
+	cl->cursorWasChanged = FALSE;
+	if (!rfbSendCursorShape(cl)) {
+	    sraRgnDestroy(updateRegion);
+	    return FALSE;
+	}
+    }
+   
+   if (sendCursorPos) {
+	cl->cursorWasMoved = FALSE;
+	if (!rfbSendCursorPos(cl)) {
+	    sraRgnDestroy(updateRegion);
+	    return FALSE;
+	}
+    }
+   
+    if (!sraRgnEmpty(updateCopyRegion)) {
+	if (!rfbSendCopyRegion(cl,updateCopyRegion,dx,dy)) {
+	    sraRgnDestroy(updateRegion);
+	    sraRgnDestroy(updateCopyRegion);
+	    return FALSE;
+	}
+    }
+
+    sraRgnDestroy(updateCopyRegion);
+
+    for(i = sraRgnGetIterator(updateRegion); sraRgnIteratorNext(i,&rect);){
+        int x = rect.x1;
+        int y = rect.y1;
+        int w = rect.x2 - x;
+        int h = rect.y2 - y;
+
+        cl->rfbRawBytesEquivalent += (sz_rfbFramebufferUpdateRectHeader
+                                      + w * (cl->format.bitsPerPixel / 8) * h);
+
+        switch (cl->preferredEncoding) {
+        case rfbEncodingRaw:
+            if (!rfbSendRectEncodingRaw(cl, x, y, w, h)) {
+	        sraRgnDestroy(updateRegion);
+		sraRgnReleaseIterator(i);
+                return FALSE;
+            }
+            break;
+        case rfbEncodingRRE:
+            if (!rfbSendRectEncodingRRE(cl, x, y, w, h)) {
+	        sraRgnDestroy(updateRegion);
+		sraRgnReleaseIterator(i);
+                return FALSE;
+            }
+            break;
+        case rfbEncodingCoRRE:
+            if (!rfbSendRectEncodingCoRRE(cl, x, y, w, h)) {
+	        sraRgnDestroy(updateRegion);
+		sraRgnReleaseIterator(i);
+                return FALSE;
+            }
+            break;
+        case rfbEncodingHextile:
+            if (!rfbSendRectEncodingHextile(cl, x, y, w, h)) {
+	        sraRgnDestroy(updateRegion);
+		sraRgnReleaseIterator(i);
+                return FALSE;
+            }
+            break;
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+	case rfbEncodingZlib:
+	    if (!rfbSendRectEncodingZlib(cl, x, y, w, h)) {
+	        sraRgnDestroy(updateRegion);
+		sraRgnReleaseIterator(i);
+		return FALSE;
+	    }
+	    break;
+#ifdef LIBVNCSERVER_HAVE_LIBJPEG
+	case rfbEncodingTight:
+	    if (!rfbSendRectEncodingTight(cl, x, y, w, h)) {
+	        sraRgnDestroy(updateRegion);
+		sraRgnReleaseIterator(i);
+		return FALSE;
+	    }
+	    break;
+#endif
+#endif
+#ifdef LIBVNCSERVER_HAVE_LIBZ
+       case rfbEncodingZRLE:
+           if (!rfbSendRectEncodingZRLE(cl, x, y, w, h)) {
+	       sraRgnDestroy(updateRegion);
+		sraRgnReleaseIterator(i);
+               return FALSE;
+           }
+           break;
+#endif
+        }
+    }
+    sraRgnReleaseIterator(i);
+
+    if ( nUpdateRegionRects == 0xFFFF &&
+	 !rfbSendLastRectMarker(cl) ) {
+        sraRgnDestroy(updateRegion);
+	return FALSE;
+    }
+
+    if (!rfbSendUpdateBuf(cl)) {
+        sraRgnDestroy(updateRegion);
+        return FALSE;
+    }
+
+    sraRgnDestroy(updateRegion);
+    return TRUE;
+}
+
+
+/*
+ * Send the copy region as a string of CopyRect encoded rectangles.
+ * The only slightly tricky thing is that we should send the messages in
+ * the correct order so that an earlier CopyRect will not corrupt the source
+ * of a later one.
+ */
+
+rfbBool
+rfbSendCopyRegion(cl, reg, dx, dy)
+    rfbClientPtr cl;
+    sraRegionPtr reg;
+    int dx, dy;
+{
+    int x, y, w, h;
+    rfbFramebufferUpdateRectHeader rect;
+    rfbCopyRect cr;
+    sraRectangleIterator* i;
+    sraRect rect1;
+
+    /* printf("copyrect: "); sraRgnPrint(reg); putchar('\n');fflush(stdout); */
+    i = sraRgnGetReverseIterator(reg,dx>0,dy>0);
+
+    while(sraRgnIteratorNext(i,&rect1)) {
+      x = rect1.x1;
+      y = rect1.y1;
+      w = rect1.x2 - x;
+      h = rect1.y2 - y;
+
+      rect.r.x = Swap16IfLE(x);
+      rect.r.y = Swap16IfLE(y);
+      rect.r.w = Swap16IfLE(w);
+      rect.r.h = Swap16IfLE(h);
+      rect.encoding = Swap32IfLE(rfbEncodingCopyRect);
+
+      memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+	     sz_rfbFramebufferUpdateRectHeader);
+      cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+      cr.srcX = Swap16IfLE(x - dx);
+      cr.srcY = Swap16IfLE(y - dy);
+
+      memcpy(&cl->updateBuf[cl->ublen], (char *)&cr, sz_rfbCopyRect);
+      cl->ublen += sz_rfbCopyRect;
+
+      cl->rfbRectanglesSent[rfbEncodingCopyRect]++;
+      cl->rfbBytesSent[rfbEncodingCopyRect]
+	+= sz_rfbFramebufferUpdateRectHeader + sz_rfbCopyRect;
+
+    }
+
+    return TRUE;
+}
+
+/*
+ * Send a given rectangle in raw encoding (rfbEncodingRaw).
+ */
+
+rfbBool
+rfbSendRectEncodingRaw(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    rfbFramebufferUpdateRectHeader rect;
+    int nlines;
+    int bytesPerLine = w * (cl->format.bitsPerPixel / 8);
+    char *fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y)
+                   + (x * (cl->screen->bitsPerPixel / 8)));
+
+    /* Flush the buffer to guarantee correct alignment for translateFn(). */
+    if (cl->ublen > 0) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    rect.r.x = Swap16IfLE(x);
+    rect.r.y = Swap16IfLE(y);
+    rect.r.w = Swap16IfLE(w);
+    rect.r.h = Swap16IfLE(h);
+    rect.encoding = Swap32IfLE(rfbEncodingRaw);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    cl->rfbRectanglesSent[rfbEncodingRaw]++;
+    cl->rfbBytesSent[rfbEncodingRaw]
+        += sz_rfbFramebufferUpdateRectHeader + bytesPerLine * h;
+
+    nlines = (UPDATE_BUF_SIZE - cl->ublen) / bytesPerLine;
+
+    while (TRUE) {
+        if (nlines > h)
+            nlines = h;
+
+        (*cl->translateFn)(cl->translateLookupTable,
+			   &(cl->screen->rfbServerFormat),
+                           &cl->format, fbptr, &cl->updateBuf[cl->ublen],
+                           cl->screen->paddedWidthInBytes, w, nlines);
+
+        cl->ublen += nlines * bytesPerLine;
+        h -= nlines;
+
+        if (h == 0)     /* rect fitted in buffer, do next one */
+            return TRUE;
+
+        /* buffer full - flush partial rect and do another nlines */
+
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+
+        fbptr += (cl->screen->paddedWidthInBytes * nlines);
+
+        nlines = (UPDATE_BUF_SIZE - cl->ublen) / bytesPerLine;
+        if (nlines == 0) {
+            rfbErr("rfbSendRectEncodingRaw: send buffer too small for %d "
+                   "bytes per line\n", bytesPerLine);
+            rfbCloseClient(cl);
+            return FALSE;
+        }
+    }
+}
+
+
+
+/*
+ * Send an empty rectangle with encoding field set to value of
+ * rfbEncodingLastRect to notify client that this is the last
+ * rectangle in framebuffer update ("LastRect" extension of RFB
+ * protocol).
+ */
+
+rfbBool
+rfbSendLastRectMarker(cl)
+    rfbClientPtr cl;
+{
+    rfbFramebufferUpdateRectHeader rect;
+
+    if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) {
+	if (!rfbSendUpdateBuf(cl))
+	    return FALSE;
+    }
+
+    rect.encoding = Swap32IfLE(rfbEncodingLastRect);
+    rect.r.x = 0;
+    rect.r.y = 0;
+    rect.r.w = 0;
+    rect.r.h = 0;
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    cl->rfbLastRectMarkersSent++;
+    cl->rfbLastRectBytesSent += sz_rfbFramebufferUpdateRectHeader;
+
+    return TRUE;
+}
+
+
+/*
+ * Send NewFBSize pseudo-rectangle. This tells the client to change
+ * its framebuffer size.
+ */
+
+rfbBool
+rfbSendNewFBSize(cl, w, h)
+    rfbClientPtr cl;
+    int w, h;
+{
+    rfbFramebufferUpdateRectHeader rect;
+
+    if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) {
+	if (!rfbSendUpdateBuf(cl))
+	    return FALSE;
+    }
+
+    rect.encoding = Swap32IfLE(rfbEncodingNewFBSize);
+    rect.r.x = 0;
+    rect.r.y = 0;
+    rect.r.w = Swap16IfLE(w);
+    rect.r.h = Swap16IfLE(h);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+           sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    cl->rfbLastRectMarkersSent++;
+    cl->rfbLastRectBytesSent += sz_rfbFramebufferUpdateRectHeader;
+
+    return TRUE;
+}
+
+
+/*
+ * Send the contents of cl->updateBuf.  Returns 1 if successful, -1 if
+ * not (errno should be set).
+ */
+
+rfbBool
+rfbSendUpdateBuf(cl)
+    rfbClientPtr cl;
+{
+    if(cl->sock<0)
+      return FALSE;
+
+    if (WriteExact(cl, cl->updateBuf, cl->ublen) < 0) {
+        rfbLogPerror("rfbSendUpdateBuf: write");
+        rfbCloseClient(cl);
+        return FALSE;
+    }
+
+    cl->ublen = 0;
+    return TRUE;
+}
+
+/*
+ * rfbSendSetColourMapEntries sends a SetColourMapEntries message to the
+ * client, using values from the currently installed colormap.
+ */
+
+rfbBool
+rfbSendSetColourMapEntries(cl, firstColour, nColours)
+    rfbClientPtr cl;
+    int firstColour;
+    int nColours;
+{
+    char buf[sz_rfbSetColourMapEntriesMsg + 256 * 3 * 2];
+    rfbSetColourMapEntriesMsg *scme = (rfbSetColourMapEntriesMsg *)buf;
+    uint16_t *rgb = (uint16_t *)(&buf[sz_rfbSetColourMapEntriesMsg]);
+    rfbColourMap* cm = &cl->screen->colourMap;
+    
+    int i, len;
+
+    scme->type = rfbSetColourMapEntries;
+
+    scme->firstColour = Swap16IfLE(firstColour);
+    scme->nColours = Swap16IfLE(nColours);
+
+    len = sz_rfbSetColourMapEntriesMsg;
+
+    for (i = 0; i < nColours; i++) {
+      if(i<(int)cm->count) {
+	if(cm->is16) {
+	  rgb[i*3] = Swap16IfLE(cm->data.shorts[i*3]);
+	  rgb[i*3+1] = Swap16IfLE(cm->data.shorts[i*3+1]);
+	  rgb[i*3+2] = Swap16IfLE(cm->data.shorts[i*3+2]);
+	} else {
+	  rgb[i*3] = Swap16IfLE(cm->data.bytes[i*3]);
+	  rgb[i*3+1] = Swap16IfLE(cm->data.bytes[i*3+1]);
+	  rgb[i*3+2] = Swap16IfLE(cm->data.bytes[i*3+2]);
+	}
+      }
+    }
+
+    len += nColours * 3 * 2;
+
+    if (WriteExact(cl, buf, len) < 0) {
+	rfbLogPerror("rfbSendSetColourMapEntries: write");
+	rfbCloseClient(cl);
+	return FALSE;
+    }
+    return TRUE;
+}
+
+/*
+ * rfbSendBell sends a Bell message to all the clients.
+ */
+
+void
+rfbSendBell(rfbScreenInfoPtr rfbScreen)
+{
+    rfbClientIteratorPtr i;
+    rfbClientPtr cl;
+    rfbBellMsg b;
+
+    i = rfbGetClientIterator(rfbScreen);
+    while((cl=rfbClientIteratorNext(i))) {
+	b.type = rfbBell;
+	if (WriteExact(cl, (char *)&b, sz_rfbBellMsg) < 0) {
+	    rfbLogPerror("rfbSendBell: write");
+	    rfbCloseClient(cl);
+	}
+    }
+    rfbReleaseClientIterator(i);
+}
+
+
+/*
+ * rfbSendServerCutText sends a ServerCutText message to all the clients.
+ */
+
+void
+rfbSendServerCutText(rfbScreenInfoPtr rfbScreen,char *str, int len)
+{
+    rfbClientPtr cl;
+    rfbServerCutTextMsg sct;
+    rfbClientIteratorPtr iterator;
+
+    iterator = rfbGetClientIterator(rfbScreen);
+    while ((cl = rfbClientIteratorNext(iterator)) != NULL) {
+        sct.type = rfbServerCutText;
+        sct.length = Swap32IfLE(len);
+        if (WriteExact(cl, (char *)&sct,
+                       sz_rfbServerCutTextMsg) < 0) {
+            rfbLogPerror("rfbSendServerCutText: write");
+            rfbCloseClient(cl);
+            continue;
+        }
+        if (WriteExact(cl, str, len) < 0) {
+            rfbLogPerror("rfbSendServerCutText: write");
+            rfbCloseClient(cl);
+        }
+    }
+    rfbReleaseClientIterator(iterator);
+}
+
+/*****************************************************************************
+ *
+ * UDP can be used for keyboard and pointer events when the underlying
+ * network is highly reliable.  This is really here to support ORL's
+ * videotile, whose TCP implementation doesn't like sending lots of small
+ * packets (such as 100s of pen readings per second!).
+ */
+
+unsigned char ptrAcceleration = 50;
+
+void
+rfbNewUDPConnection(rfbScreen,sock)
+    rfbScreenInfoPtr rfbScreen;
+    int sock;
+{
+    if (write(sock, &ptrAcceleration, 1) < 0) {
+	rfbLogPerror("rfbNewUDPConnection: write");
+    }
+}
+
+/*
+ * Because UDP is a message based service, we can't read the first byte and
+ * then the rest of the packet separately like we do with TCP.  We will always
+ * get a whole packet delivered in one go, so we ask read() for the maximum
+ * number of bytes we can possibly get.
+ */
+
+void
+rfbProcessUDPInput(rfbScreenInfoPtr rfbScreen)
+{
+    int n;
+    rfbClientPtr cl=rfbScreen->udpClient;
+    rfbClientToServerMsg msg;
+
+    if((!cl) || cl->onHold)
+      return;
+
+    if ((n = read(rfbScreen->udpSock, (char *)&msg, sizeof(msg))) <= 0) {
+	if (n < 0) {
+	    rfbLogPerror("rfbProcessUDPInput: read");
+	}
+	rfbDisconnectUDPSock(rfbScreen);
+	return;
+    }
+
+    switch (msg.type) {
+
+    case rfbKeyEvent:
+	if (n != sz_rfbKeyEventMsg) {
+	    rfbErr("rfbProcessUDPInput: key event incorrect length\n");
+	    rfbDisconnectUDPSock(rfbScreen);
+	    return;
+	}
+	cl->screen->kbdAddEvent(msg.ke.down, (rfbKeySym)Swap32IfLE(msg.ke.key), cl);
+	break;
+
+    case rfbPointerEvent:
+	if (n != sz_rfbPointerEventMsg) {
+	    rfbErr("rfbProcessUDPInput: ptr event incorrect length\n");
+	    rfbDisconnectUDPSock(rfbScreen);
+	    return;
+	}
+	cl->screen->ptrAddEvent(msg.pe.buttonMask,
+		    Swap16IfLE(msg.pe.x), Swap16IfLE(msg.pe.y), cl);
+	break;
+
+    default:
+	rfbErr("rfbProcessUDPInput: unknown message type %d\n",
+	       msg.type);
+	rfbDisconnectUDPSock(rfbScreen);
+    }
+}
+
+#ifdef LIBVNCSERVER_BACKCHANNEL
+void rfbSendBackChannel(rfbScreenInfoPtr rfbScreen,char* str,int len)
+{
+    rfbClientPtr cl;
+    rfbBackChannelMsg sct;
+    rfbClientIteratorPtr iterator;
+
+    iterator = rfbGetClientIterator(rfbScreen);
+    while ((cl = rfbClientIteratorNext(iterator)) != NULL) {
+        if (cl->enableBackChannel) {
+	    sct.type = rfbBackChannel;
+	    sct.length = Swap32IfLE(len);
+	    if (WriteExact(cl, (char *)&sct,
+			   sz_rfbBackChannelMsg) < 0) {
+	        rfbLogPerror("rfbSendBackChannel: write");
+		rfbCloseClient(cl);
+		continue;
+	    }
+	    if (WriteExact(cl, str, len) < 0) {
+	        rfbLogPerror("rfbSendBackChannel: write");
+		rfbCloseClient(cl);
+	    }
+	}
+    }
+    rfbReleaseClientIterator(iterator);
+}
+#endif
diff --git a/libvncserver/rre.c b/libvncserver/rre.c
new file mode 100755
index 0000000..3e00c05
--- /dev/null
+++ b/libvncserver/rre.c
@@ -0,0 +1,321 @@
+/*
+ * rre.c
+ *
+ * Routines to implement Rise-and-Run-length Encoding (RRE).  This
+ * code is based on krw's original javatel rfbserver.
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+/*
+ * rreBeforeBuf contains pixel data in the client's format.
+ * rreAfterBuf contains the RRE encoded version.  If the RRE encoded version is
+ * larger than the raw data or if it exceeds rreAfterBufSize then
+ * raw encoding is used instead.
+ */
+
+static int rreBeforeBufSize = 0;
+static char *rreBeforeBuf = NULL;
+
+static int rreAfterBufSize = 0;
+static char *rreAfterBuf = NULL;
+static int rreAfterBufLen;
+
+static int subrectEncode8(uint8_t *data, int w, int h);
+static int subrectEncode16(uint16_t *data, int w, int h);
+static int subrectEncode32(uint32_t *data, int w, int h);
+static uint32_t getBgColour(char *data, int size, int bpp);
+
+
+/*
+ * rfbSendRectEncodingRRE - send a given rectangle using RRE encoding.
+ */
+
+rfbBool
+rfbSendRectEncodingRRE(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    rfbFramebufferUpdateRectHeader rect;
+    rfbRREHeader hdr;
+    int nSubrects;
+    int i;
+    char *fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y)
+                   + (x * (cl->screen->bitsPerPixel / 8)));
+
+    int maxRawSize = (cl->screen->width * cl->screen->height
+                      * (cl->format.bitsPerPixel / 8));
+
+    if (rreBeforeBufSize < maxRawSize) {
+        rreBeforeBufSize = maxRawSize;
+        if (rreBeforeBuf == NULL)
+            rreBeforeBuf = (char *)malloc(rreBeforeBufSize);
+        else
+            rreBeforeBuf = (char *)realloc(rreBeforeBuf, rreBeforeBufSize);
+    }
+
+    if (rreAfterBufSize < maxRawSize) {
+        rreAfterBufSize = maxRawSize;
+        if (rreAfterBuf == NULL)
+            rreAfterBuf = (char *)malloc(rreAfterBufSize);
+        else
+            rreAfterBuf = (char *)realloc(rreAfterBuf, rreAfterBufSize);
+    }
+
+    (*cl->translateFn)(cl->translateLookupTable,
+		       &(cl->screen->rfbServerFormat),
+                       &cl->format, fbptr, rreBeforeBuf,
+                       cl->screen->paddedWidthInBytes, w, h);
+
+    switch (cl->format.bitsPerPixel) {
+    case 8:
+        nSubrects = subrectEncode8((uint8_t *)rreBeforeBuf, w, h);
+        break;
+    case 16:
+        nSubrects = subrectEncode16((uint16_t *)rreBeforeBuf, w, h);
+        break;
+    case 32:
+        nSubrects = subrectEncode32((uint32_t *)rreBeforeBuf, w, h);
+        break;
+    default:
+        rfbLog("getBgColour: bpp %d?\n",cl->format.bitsPerPixel);
+        return FALSE;
+    }
+        
+    if (nSubrects < 0) {
+
+        /* RRE encoding was too large, use raw */
+
+        return rfbSendRectEncodingRaw(cl, x, y, w, h);
+    }
+
+    cl->rfbRectanglesSent[rfbEncodingRRE]++;
+    cl->rfbBytesSent[rfbEncodingRRE] += (sz_rfbFramebufferUpdateRectHeader
+                                         + sz_rfbRREHeader + rreAfterBufLen);
+
+    if (cl->ublen + sz_rfbFramebufferUpdateRectHeader + sz_rfbRREHeader
+        > UPDATE_BUF_SIZE)
+    {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    rect.r.x = Swap16IfLE(x);
+    rect.r.y = Swap16IfLE(y);
+    rect.r.w = Swap16IfLE(w);
+    rect.r.h = Swap16IfLE(h);
+    rect.encoding = Swap32IfLE(rfbEncodingRRE);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+           sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    hdr.nSubrects = Swap32IfLE(nSubrects);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&hdr, sz_rfbRREHeader);
+    cl->ublen += sz_rfbRREHeader;
+
+    for (i = 0; i < rreAfterBufLen;) {
+
+        int bytesToCopy = UPDATE_BUF_SIZE - cl->ublen;
+
+        if (i + bytesToCopy > rreAfterBufLen) {
+            bytesToCopy = rreAfterBufLen - i;
+        }
+
+        memcpy(&cl->updateBuf[cl->ublen], &rreAfterBuf[i], bytesToCopy);
+
+        cl->ublen += bytesToCopy;
+        i += bytesToCopy;
+
+        if (cl->ublen == UPDATE_BUF_SIZE) {
+            if (!rfbSendUpdateBuf(cl))
+                return FALSE;
+        }
+    }
+
+    return TRUE;
+}
+
+
+
+/*
+ * subrectEncode() encodes the given multicoloured rectangle as a background 
+ * colour overwritten by single-coloured rectangles.  It returns the number 
+ * of subrectangles in the encoded buffer, or -1 if subrect encoding won't
+ * fit in the buffer.  It puts the encoded rectangles in rreAfterBuf.  The
+ * single-colour rectangle partition is not optimal, but does find the biggest
+ * horizontal or vertical rectangle top-left anchored to each consecutive 
+ * coordinate position.
+ *
+ * The coding scheme is simply [<bgcolour><subrect><subrect>...] where each 
+ * <subrect> is [<colour><x><y><w><h>].
+ */
+
+#define DEFINE_SUBRECT_ENCODE(bpp)                                            \
+static int                                                                    \
+subrectEncode##bpp(data,w,h)                                                  \
+    uint##bpp##_t *data;                                                          \
+    int w;                                                                    \
+    int h;                                                                    \
+{                                                                             \
+    uint##bpp##_t cl;                                                             \
+    rfbRectangle subrect;                                                     \
+    int x,y;                                                                  \
+    int i,j;                                                                  \
+    int hx=0,hy,vx=0,vy;                                                      \
+    int hyflag;                                                               \
+    uint##bpp##_t *seg;                                                           \
+    uint##bpp##_t *line;                                                          \
+    int hw,hh,vw,vh;                                                          \
+    int thex,they,thew,theh;                                                  \
+    int numsubs = 0;                                                          \
+    int newLen;                                                               \
+    uint##bpp##_t bg = (uint##bpp##_t)getBgColour((char*)data,w*h,bpp);               \
+                                                                              \
+    *((uint##bpp##_t*)rreAfterBuf) = bg;                                          \
+                                                                              \
+    rreAfterBufLen = (bpp/8);                                                 \
+                                                                              \
+    for (y=0; y<h; y++) {                                                     \
+      line = data+(y*w);                                                      \
+      for (x=0; x<w; x++) {                                                   \
+        if (line[x] != bg) {                                                  \
+          cl = line[x];                                                       \
+          hy = y-1;                                                           \
+          hyflag = 1;                                                         \
+          for (j=y; j<h; j++) {                                               \
+            seg = data+(j*w);                                                 \
+            if (seg[x] != cl) {break;}                                        \
+            i = x;                                                            \
+            while ((seg[i] == cl) && (i < w)) i += 1;                         \
+            i -= 1;                                                           \
+            if (j == y) vx = hx = i;                                          \
+            if (i < vx) vx = i;                                               \
+            if ((hyflag > 0) && (i >= hx)) {hy += 1;} else {hyflag = 0;}      \
+          }                                                                   \
+          vy = j-1;                                                           \
+                                                                              \
+          /*  We now have two possible subrects: (x,y,hx,hy) and (x,y,vx,vy)  \
+           *  We'll choose the bigger of the two.                             \
+           */                                                                 \
+          hw = hx-x+1;                                                        \
+          hh = hy-y+1;                                                        \
+          vw = vx-x+1;                                                        \
+          vh = vy-y+1;                                                        \
+                                                                              \
+          thex = x;                                                           \
+          they = y;                                                           \
+                                                                              \
+          if ((hw*hh) > (vw*vh)) {                                            \
+            thew = hw;                                                        \
+            theh = hh;                                                        \
+          } else {                                                            \
+            thew = vw;                                                        \
+            theh = vh;                                                        \
+          }                                                                   \
+                                                                              \
+          subrect.x = Swap16IfLE(thex);                                       \
+          subrect.y = Swap16IfLE(they);                                       \
+          subrect.w = Swap16IfLE(thew);                                       \
+          subrect.h = Swap16IfLE(theh);                                       \
+                                                                              \
+          newLen = rreAfterBufLen + (bpp/8) + sz_rfbRectangle;                \
+          if ((newLen > (w * h * (bpp/8))) || (newLen > rreAfterBufSize))     \
+            return -1;                                                        \
+                                                                              \
+          numsubs += 1;                                                       \
+          *((uint##bpp##_t*)(rreAfterBuf + rreAfterBufLen)) = cl;                 \
+          rreAfterBufLen += (bpp/8);                                          \
+          memcpy(&rreAfterBuf[rreAfterBufLen],&subrect,sz_rfbRectangle);      \
+          rreAfterBufLen += sz_rfbRectangle;                                  \
+                                                                              \
+          /*                                                                  \
+           * Now mark the subrect as done.                                    \
+           */                                                                 \
+          for (j=they; j < (they+theh); j++) {                                \
+            for (i=thex; i < (thex+thew); i++) {                              \
+              data[j*w+i] = bg;                                               \
+            }                                                                 \
+          }                                                                   \
+        }                                                                     \
+      }                                                                       \
+    }                                                                         \
+                                                                              \
+    return numsubs;                                                           \
+}
+
+DEFINE_SUBRECT_ENCODE(8)
+DEFINE_SUBRECT_ENCODE(16)
+DEFINE_SUBRECT_ENCODE(32)
+
+
+/*
+ * getBgColour() gets the most prevalent colour in a byte array.
+ */
+static uint32_t
+getBgColour(data,size,bpp)
+    char *data;
+    int size;
+    int bpp;
+{
+    
+#define NUMCLRS 256
+  
+  static int counts[NUMCLRS];
+  int i,j,k;
+
+  int maxcount = 0;
+  uint8_t maxclr = 0;
+
+  if (bpp != 8) {
+    if (bpp == 16) {
+      return ((uint16_t *)data)[0];
+    } else if (bpp == 32) {
+      return ((uint32_t *)data)[0];
+    } else {
+      rfbLog("getBgColour: bpp %d?\n",bpp);
+      return 0;
+    }
+  }
+
+  for (i=0; i<NUMCLRS; i++) {
+    counts[i] = 0;
+  }
+
+  for (j=0; j<size; j++) {
+    k = (int)(((uint8_t *)data)[j]);
+    if (k >= NUMCLRS) {
+      rfbErr("getBgColour: unusual colour = %d\n", k);
+      return 0;
+    }
+    counts[k] += 1;
+    if (counts[k] > maxcount) {
+      maxcount = counts[k];
+      maxclr = ((uint8_t *)data)[j];
+    }
+  }
+  
+  return maxclr;
+}
diff --git a/libvncserver/selbox.c b/libvncserver/selbox.c
new file mode 100755
index 0000000..8d76e23
--- /dev/null
+++ b/libvncserver/selbox.c
@@ -0,0 +1,301 @@
+#include <ctype.h>
+#include <rfb/rfb.h>
+#include <rfb/keysym.h>
+
+typedef struct {
+  rfbScreenInfoPtr screen;
+  rfbFontDataPtr font;
+  char** list;
+  int listSize;
+  int selected;
+  int displayStart;
+  int x1,y1,x2,y2,textH,pageH;
+  int xhot,yhot;
+  int buttonWidth,okBX,cancelBX,okX,cancelX,okY;
+  rfbBool okInverted,cancelInverted;
+  int lastButtons;
+  rfbPixel colour,backColour;
+  SelectionChangedHookPtr selChangedHook;
+  enum { SELECTING, OK, CANCEL } state;
+} rfbSelectData;
+
+static const char* okStr="OK";
+static const char* cancelStr="Cancel";
+
+static void selPaintButtons(rfbSelectData* m,rfbBool invertOk,rfbBool invertCancel)
+{
+  rfbScreenInfoPtr s = m->screen;
+  rfbPixel bcolour = m->backColour;
+  rfbPixel colour = m->colour;
+
+  rfbFillRect(s,m->x1,m->okY-m->textH,m->x2,m->okY,bcolour);
+
+  if(invertOk) {
+    rfbFillRect(s,m->okBX,m->okY-m->textH,m->okBX+m->buttonWidth,m->okY,colour);
+    rfbDrawStringWithClip(s,m->font,m->okX+m->xhot,m->okY-1+m->yhot,okStr,
+			  m->x1,m->okY-m->textH,m->x2,m->okY,
+			  bcolour,colour);
+  } else
+    rfbDrawString(s,m->font,m->okX+m->xhot,m->okY-1+m->yhot,okStr,colour);
+    
+  if(invertCancel) {
+    rfbFillRect(s,m->cancelBX,m->okY-m->textH,
+	     m->cancelBX+m->buttonWidth,m->okY,colour);
+    rfbDrawStringWithClip(s,m->font,m->cancelX+m->xhot,m->okY-1+m->yhot,
+			  cancelStr,m->x1,m->okY-m->textH,m->x2,m->okY,
+			  bcolour,colour);
+  } else
+    rfbDrawString(s,m->font,m->cancelX+m->xhot,m->okY-1+m->yhot,cancelStr,colour);
+
+  m->okInverted = invertOk;
+  m->cancelInverted = invertCancel;
+}
+
+/* line is relative to displayStart */
+static void selPaintLine(rfbSelectData* m,int line,rfbBool invert)
+{
+  int y1 = m->y1+line*m->textH, y2 = y1+m->textH;
+  if(y2>m->y2)
+    y2=m->y2;
+  rfbFillRect(m->screen,m->x1,y1,m->x2,y2,invert?m->colour:m->backColour);
+  if(m->displayStart+line<m->listSize)
+    rfbDrawStringWithClip(m->screen,m->font,m->x1+m->xhot,y2-1+m->yhot,
+			  m->list[m->displayStart+line],
+			  m->x1,y1,m->x2,y2,
+			  invert?m->backColour:m->colour,
+			  invert?m->backColour:m->colour);
+}
+
+static void selSelect(rfbSelectData* m,int _index)
+{
+  int delta;
+
+  if(_index==m->selected || _index<0 || _index>=m->listSize)
+    return;
+
+  if(m->selected>=0)
+    selPaintLine(m,m->selected-m->displayStart,FALSE);
+
+  if(_index<m->displayStart || _index>=m->displayStart+m->pageH) {
+    /* targetLine is the screen line in which the selected line will
+       be displayed.
+       targetLine = m->pageH/2 doesn't look so nice */
+    int targetLine = m->selected-m->displayStart;
+    int lineStart,lineEnd;
+
+    /* scroll */
+    if(_index<targetLine)
+      targetLine = _index;
+    else if(_index+m->pageH-targetLine>=m->listSize)
+      targetLine = _index+m->pageH-m->listSize;
+    delta = _index-(m->displayStart+targetLine);
+
+    if(delta>-m->pageH && delta<m->pageH) {
+      if(delta>0) {
+	lineStart = m->pageH-delta;
+	lineEnd = m->pageH;
+	rfbDoCopyRect(m->screen,m->x1,m->y1,m->x2,m->y1+lineStart*m->textH,
+		      0,-delta*m->textH);
+      } else {
+	lineStart = 0;
+	lineEnd = -delta;
+	rfbDoCopyRect(m->screen,
+		      m->x1,m->y1+lineEnd*m->textH,m->x2,m->y2,
+		      0,-delta*m->textH);
+      }
+    } else {
+      lineStart = 0;
+      lineEnd = m->pageH;
+    }
+    m->displayStart += delta;
+    for(delta=lineStart;delta<lineEnd;delta++)
+      if(delta!=_index)
+	selPaintLine(m,delta,FALSE);
+  }
+
+  m->selected = _index;
+  selPaintLine(m,m->selected-m->displayStart,TRUE);
+
+  if(m->selChangedHook)
+    m->selChangedHook(_index);
+
+  /* todo: scrollbars */
+}
+
+static void selKbdAddEvent(rfbBool down,rfbKeySym keySym,rfbClientPtr cl)
+{
+  if(down) {
+    if(keySym>' ' && keySym<0xff) {
+      int i;
+      rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+      char c = tolower(keySym);
+
+      for(i=m->selected+1;m->list[i] && tolower(m->list[i][0])!=c;i++);
+      if(!m->list[i])
+	for(i=0;i<m->selected && tolower(m->list[i][0])!=c;i++);
+      selSelect(m,i);
+    } else if(keySym==XK_Escape) {
+      rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+      m->state = CANCEL;
+    } else if(keySym==XK_Return) {
+      rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+      m->state = OK;
+    } else {
+      rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+      int curSel=m->selected;
+      if(keySym==XK_Up) {
+	if(curSel>0)
+	  selSelect(m,curSel-1);
+      } else if(keySym==XK_Down) {
+	if(curSel+1<m->listSize)
+	  selSelect(m,curSel+1);
+      } else {
+	if(keySym==XK_Page_Down) {
+	  if(curSel+m->pageH<m->listSize)
+	    selSelect(m,curSel+m->pageH);
+	  else
+	    selSelect(m,m->listSize-1);
+	} else if(keySym==XK_Page_Up) {
+	  if(curSel-m->pageH>=0)
+	    selSelect(m,curSel-m->pageH);
+	  else
+	    selSelect(m,0);
+	}
+      }
+    }
+  }
+}
+
+static void selPtrAddEvent(int buttonMask,int x,int y,rfbClientPtr cl)
+{
+  rfbSelectData* m = (rfbSelectData*)cl->screen->screenData;
+  if(y<m->okY && y>=m->okY-m->textH) {
+    if(x>=m->okBX && x<m->okBX+m->buttonWidth) {
+      if(!m->okInverted)
+	selPaintButtons(m,TRUE,FALSE);
+      if(buttonMask)
+	m->state = OK;
+    } else if(x>=m->cancelBX && x<m->cancelBX+m->buttonWidth) {
+      if(!m->cancelInverted)
+	selPaintButtons(m,FALSE,TRUE);
+      if(buttonMask)
+	m->state = CANCEL;
+    } else if(m->okInverted || m->cancelInverted)
+      selPaintButtons(m,FALSE,FALSE);
+  } else {
+    if(m->okInverted || m->cancelInverted)
+      selPaintButtons(m,FALSE,FALSE);
+    if(!m->lastButtons && buttonMask) {
+      if(x>=m->x1 && x<m->x2 && y>=m->y1 && y<m->y2)
+	selSelect(m,m->displayStart+(y-m->y1)/m->textH);
+    }
+  }
+  m->lastButtons = buttonMask;
+
+  /* todo: scrollbars */
+}
+
+static rfbCursorPtr selGetCursorPtr(rfbClientPtr cl)
+{
+  return(0);
+}
+
+int rfbSelectBox(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+		 char** list,
+		 int x1,int y1,int x2,int y2,
+		 rfbPixel colour,rfbPixel backColour,
+		 int border,SelectionChangedHookPtr selChangedHook)
+{
+   int bpp = rfbScreen->bitsPerPixel/8;
+   char* frameBufferBackup;
+   void* screenDataBackup = rfbScreen->screenData;
+   KbdAddEventProcPtr kbdAddEventBackup = rfbScreen->kbdAddEvent;
+   PtrAddEventProcPtr ptrAddEventBackup = rfbScreen->ptrAddEvent;
+   GetCursorProcPtr getCursorPtrBackup = rfbScreen->getCursorPtr;
+   DisplayHookPtr displayHookBackup = rfbScreen->displayHook;
+   rfbSelectData selData;
+   int i,j,k;
+   int fx1,fy1,fx2,fy2; /* for font bbox */
+
+   if(list==0 || *list==0)
+     return(-1);
+   
+   rfbWholeFontBBox(font, &fx1, &fy1, &fx2, &fy2);
+   selData.textH = fy2-fy1;
+   /* I need at least one line for the choice and one for the buttons */
+   if(y2-y1<selData.textH*2+3*border)
+     return(-1);
+   selData.xhot = -fx1;
+   selData.yhot = -fy2;
+   selData.x1 = x1+border;
+   selData.y1 = y1+border;
+   selData.y2 = y2-selData.textH-3*border;
+   selData.x2 = x2-2*border;
+   selData.pageH = (selData.y2-selData.y1)/selData.textH;
+
+   i = rfbWidthOfString(font,okStr);
+   j = rfbWidthOfString(font,cancelStr);
+   selData.buttonWidth= k = 4*border+(i<j)?j:i;
+   selData.okBX = x1+(x2-x1-2*k)/3;
+   if(selData.okBX<x1+border) /* too narrow! */
+     return(-1);
+   selData.cancelBX = x1+k+(x2-x1-2*k)*2/3;
+   selData.okX = selData.okBX+(k-i)/2;
+   selData.cancelX = selData.cancelBX+(k-j)/2;
+   selData.okY = y2-border;
+
+   rfbUndrawCursor(rfbScreen);
+   frameBufferBackup = (char*)malloc(bpp*(x2-x1)*(y2-y1));
+
+   selData.state = SELECTING;
+   selData.screen = rfbScreen;
+   selData.font = font;
+   selData.list = list;
+   selData.colour = colour;
+   selData.backColour = backColour;
+   for(i=0;list[i];i++);
+   selData.selected = i;
+   selData.listSize = i;
+   selData.displayStart = i;
+   selData.lastButtons = 0;
+   selData.selChangedHook = selChangedHook;
+   
+   rfbScreen->screenData = &selData;
+   rfbScreen->kbdAddEvent = selKbdAddEvent;
+   rfbScreen->ptrAddEvent = selPtrAddEvent;
+   rfbScreen->getCursorPtr = selGetCursorPtr;
+   rfbScreen->displayHook = 0;
+   
+   /* backup screen */
+   for(j=0;j<y2-y1;j++)
+     memcpy(frameBufferBackup+j*(x2-x1)*bpp,
+	    rfbScreen->frameBuffer+j*rfbScreen->paddedWidthInBytes+x1*bpp,
+	    (x2-x1)*bpp);
+
+   /* paint list and buttons */
+   rfbFillRect(rfbScreen,x1,y1,x2,y2,colour);
+   selPaintButtons(&selData,FALSE,FALSE);
+   selSelect(&selData,0);
+
+   /* modal loop */
+   while(selData.state == SELECTING)
+     rfbProcessEvents(rfbScreen,20000);
+
+   /* copy back screen data */
+   for(j=0;j<y2-y1;j++)
+     memcpy(rfbScreen->frameBuffer+j*rfbScreen->paddedWidthInBytes+x1*bpp,
+	    frameBufferBackup+j*(x2-x1)*bpp,
+	    (x2-x1)*bpp);
+   free(frameBufferBackup);
+   rfbMarkRectAsModified(rfbScreen,x1,y1,x2,y2);
+   rfbScreen->screenData = screenDataBackup;
+   rfbScreen->kbdAddEvent = kbdAddEventBackup;
+   rfbScreen->ptrAddEvent = ptrAddEventBackup;
+   rfbScreen->getCursorPtr = getCursorPtrBackup;
+   rfbScreen->displayHook = displayHookBackup;
+
+   if(selData.state==CANCEL)
+     selData.selected=-1;
+   return(selData.selected);
+}
+
diff --git a/libvncserver/sockets.c b/libvncserver/sockets.c
new file mode 100755
index 0000000..cea1898
--- /dev/null
+++ b/libvncserver/sockets.c
@@ -0,0 +1,619 @@
+/*
+ * sockets.c - deal with TCP & UDP sockets.
+ *
+ * This code should be independent of any changes in the RFB protocol.  It just
+ * deals with the X server scheduling stuff, calling rfbNewClientConnection and
+ * rfbProcessClientMessage to actually deal with the protocol.  If a socket
+ * needs to be closed for any reason then rfbCloseClient should be called, and
+ * this in turn will call rfbClientConnectionGone.  To make an active
+ * connection out, call rfbConnect - note that this does _not_ call
+ * rfbNewClientConnection.
+ *
+ * This file is divided into two types of function.  Those beginning with
+ * "rfb" are specific to sockets using the RFB protocol.  Those without the
+ * "rfb" prefix are more general socket routines (which are used by the http
+ * code).
+ *
+ * Thanks to Karl Hakimian for pointing out that some platforms return EAGAIN
+ * not EWOULDBLOCK.
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+#ifdef LIBVNCSERVER_HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef WIN32
+#pragma warning (disable: 4018 4761)
+#define close closesocket
+#define read(sock,buf,len) recv(sock,buf,len,0)
+#define EWOULDBLOCK WSAEWOULDBLOCK
+#define ETIMEDOUT WSAETIMEDOUT
+#define write(sock,buf,len) send(sock,buf,len,0)
+#else
+#ifdef LIBVNCSERVER_HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#endif
+
+#if defined(__linux__) && defined(NEED_TIMEVAL)
+struct timeval 
+{
+   long int tv_sec,tv_usec;
+}
+;
+#endif
+
+#ifdef LIBVNCSERVER_HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
+#include <errno.h>
+
+#ifdef USE_LIBWRAP
+#include <syslog.h>
+#include <tcpd.h>
+int allow_severity=LOG_INFO;
+int deny_severity=LOG_WARNING;
+#endif
+
+/*#ifndef WIN32
+int max(int i,int j) { return(i<j?j:i); }
+#endif
+*/
+
+int rfbMaxClientWait = 20000;   /* time (ms) after which we decide client has
+                                   gone away - needed to stop us hanging */
+
+/*
+ * rfbInitSockets sets up the TCP and UDP sockets to listen for RFB
+ * connections.  It does nothing if called again.
+ */
+
+void
+rfbInitSockets(rfbScreenInfoPtr rfbScreen)
+{
+    if (rfbScreen->socketInitDone)
+	return;
+
+    rfbScreen->socketInitDone = TRUE;
+
+    if (rfbScreen->inetdSock != -1) {
+	const int one = 1;
+
+#ifndef WIN32
+	if (fcntl(rfbScreen->inetdSock, F_SETFL, O_NONBLOCK) < 0) {
+	    rfbLogPerror("fcntl");
+	    return;
+	}
+#endif
+
+	if (setsockopt(rfbScreen->inetdSock, IPPROTO_TCP, TCP_NODELAY,
+		       (char *)&one, sizeof(one)) < 0) {
+	    rfbLogPerror("setsockopt");
+	    return;
+	}
+
+    	FD_ZERO(&(rfbScreen->allFds));
+    	FD_SET(rfbScreen->inetdSock, &(rfbScreen->allFds));
+    	rfbScreen->maxFd = rfbScreen->inetdSock;
+	return;
+    }
+
+    if(rfbScreen->autoPort) {
+        int i;
+        rfbLog("Autoprobing TCP port \n");
+
+        for (i = 5900; i < 6000; i++) {
+            if ((rfbScreen->rfbListenSock = ListenOnTCPPort(i)) >= 0) {
+		rfbScreen->rfbPort = i;
+		break;
+	    }
+        }
+
+        if (i >= 6000) {
+	    rfbLogPerror("Failure autoprobing");
+	    return;
+        }
+
+        rfbLog("Autoprobing selected port %d\n", rfbScreen->rfbPort);
+        FD_ZERO(&(rfbScreen->allFds));
+        FD_SET(rfbScreen->rfbListenSock, &(rfbScreen->allFds));
+        rfbScreen->maxFd = rfbScreen->rfbListenSock;
+    }
+    else if(rfbScreen->rfbPort>0) {
+      rfbLog("Listening for VNC connections on TCP port %d\n", rfbScreen->rfbPort);
+
+      if ((rfbScreen->rfbListenSock = ListenOnTCPPort(rfbScreen->rfbPort)) < 0) {
+	rfbLogPerror("ListenOnTCPPort");
+	return;
+      }
+
+      FD_ZERO(&(rfbScreen->allFds));
+      FD_SET(rfbScreen->rfbListenSock, &(rfbScreen->allFds));
+      rfbScreen->maxFd = rfbScreen->rfbListenSock;
+    }
+
+    if (rfbScreen->udpPort != 0) {
+	rfbLog("rfbInitSockets: listening for input on UDP port %d\n",rfbScreen->udpPort);
+
+	if ((rfbScreen->udpSock = ListenOnUDPPort(rfbScreen->udpPort)) < 0) {
+	    rfbLogPerror("ListenOnUDPPort");
+	    return;
+	}
+	FD_SET(rfbScreen->udpSock, &(rfbScreen->allFds));
+	rfbScreen->maxFd = max((int)rfbScreen->udpSock,rfbScreen->maxFd);
+    }
+}
+
+
+/*
+ * rfbCheckFds is called from ProcessInputEvents to check for input on the RFB
+ * socket(s).  If there is input to process, the appropriate function in the
+ * RFB server code will be called (rfbNewClientConnection,
+ * rfbProcessClientMessage, etc).
+ */
+
+void
+rfbCheckFds(rfbScreenInfoPtr rfbScreen,long usec)
+{
+    int nfds;
+    fd_set fds;
+    struct timeval tv;
+    struct sockaddr_in addr;
+    size_t addrlen = sizeof(addr);
+    char buf[6];
+    const int one = 1;
+    int sock;
+    rfbClientIteratorPtr i;
+    rfbClientPtr cl;
+
+    if (!rfbScreen->inetdInitDone && rfbScreen->inetdSock != -1) {
+	rfbNewClientConnection(rfbScreen,rfbScreen->inetdSock); 
+	rfbScreen->inetdInitDone = TRUE;
+    }
+
+    memcpy((char *)&fds, (char *)&(rfbScreen->allFds), sizeof(fd_set));
+    tv.tv_sec = 0;
+    tv.tv_usec = usec;
+    nfds = select(rfbScreen->maxFd + 1, &fds, NULL, NULL /* &fds */, &tv);
+    if (nfds == 0) {
+	return;
+    }
+    if (nfds < 0) {
+#ifdef WIN32
+		errno = WSAGetLastError();
+#endif
+	if (errno != EINTR)
+		rfbLogPerror("rfbCheckFds: select");
+	return;
+    }
+
+    if (rfbScreen->rfbListenSock != -1 && FD_ISSET(rfbScreen->rfbListenSock, &fds)) {
+
+	if ((sock = accept(rfbScreen->rfbListenSock,
+			   (struct sockaddr *)&addr, &addrlen)) < 0) {
+	    rfbLogPerror("rfbCheckFds: accept");
+	    return;
+	}
+
+#ifndef WIN32
+	if (fcntl(sock, F_SETFL, O_NONBLOCK) < 0) {
+	    rfbLogPerror("rfbCheckFds: fcntl");
+	    close(sock);
+	    return;
+	}
+#endif
+
+	if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
+		       (char *)&one, sizeof(one)) < 0) {
+	    rfbLogPerror("rfbCheckFds: setsockopt");
+	    close(sock);
+	    return;
+	}
+
+#ifdef USE_LIBWRAP
+	if(!hosts_ctl("vnc",STRING_UNKNOWN,inet_ntoa(addr.sin_addr),
+		      STRING_UNKNOWN)) {
+	  rfbLog("Rejected connection from client %s\n",
+		 inet_ntoa(addr.sin_addr));
+	  close(sock);
+	  return;
+	}
+#endif
+
+	rfbLog("Got connection from client %s\n", inet_ntoa(addr.sin_addr));
+
+	rfbNewClient(rfbScreen,sock);
+	
+	FD_CLR(rfbScreen->rfbListenSock, &fds);
+	if (--nfds == 0)
+	    return;
+    }
+
+    if ((rfbScreen->udpSock != -1) && FD_ISSET(rfbScreen->udpSock, &fds)) {
+        if(!rfbScreen->udpClient)
+	    rfbNewUDPClient(rfbScreen);
+	if (recvfrom(rfbScreen->udpSock, buf, 1, MSG_PEEK,
+		     (struct sockaddr *)&addr, &addrlen) < 0) {
+	    rfbLogPerror("rfbCheckFds: UDP: recvfrom");
+	    rfbDisconnectUDPSock(rfbScreen);
+	    rfbScreen->udpSockConnected = FALSE;
+	} else {
+	    if (!rfbScreen->udpSockConnected ||
+		(memcmp(&addr, &rfbScreen->udpRemoteAddr, addrlen) != 0))
+	    {
+		/* new remote end */
+		rfbLog("rfbCheckFds: UDP: got connection\n");
+
+		memcpy(&rfbScreen->udpRemoteAddr, &addr, addrlen);
+		rfbScreen->udpSockConnected = TRUE;
+
+		if (connect(rfbScreen->udpSock,
+			    (struct sockaddr *)&addr, addrlen) < 0) {
+		    rfbLogPerror("rfbCheckFds: UDP: connect");
+		    rfbDisconnectUDPSock(rfbScreen);
+		    return;
+		}
+
+		rfbNewUDPConnection(rfbScreen,rfbScreen->udpSock);
+	    }
+
+	    rfbProcessUDPInput(rfbScreen);
+	}
+
+	FD_CLR(rfbScreen->udpSock, &fds);
+	if (--nfds == 0)
+	    return;
+    }
+
+    i = rfbGetClientIterator(rfbScreen);
+    while((cl = rfbClientIteratorNext(i))) {
+      if (cl->onHold)
+	continue;
+      if (FD_ISSET(cl->sock, &fds) && FD_ISSET(cl->sock, &(rfbScreen->allFds)))
+	rfbProcessClientMessage(cl);
+    }
+    rfbReleaseClientIterator(i);
+}
+
+
+void
+rfbDisconnectUDPSock(rfbScreenInfoPtr rfbScreen)
+{
+  rfbScreen->udpSockConnected = FALSE;
+}
+
+
+
+void
+rfbCloseClient(cl)
+     rfbClientPtr cl;
+{
+    LOCK(cl->updateMutex);
+#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
+    if (cl->sock != -1)
+#endif
+      {
+	FD_CLR(cl->sock,&(cl->screen->allFds));
+	if(cl->sock==cl->screen->maxFd)
+	  while(cl->screen->maxFd>0
+		&& !FD_ISSET(cl->screen->maxFd,&(cl->screen->allFds)))
+	    cl->screen->maxFd--;
+	shutdown(cl->sock,SHUT_RDWR);
+	close(cl->sock);
+	cl->sock = -1;
+      }
+    TSIGNAL(cl->updateCond);
+    UNLOCK(cl->updateMutex);
+}
+
+
+/*
+ * rfbConnect is called to make a connection out to a given TCP address.
+ */
+
+int
+rfbConnect(rfbScreen, host, port)
+    rfbScreenInfoPtr rfbScreen;
+    char *host;
+    int port;
+{
+    int sock;
+    int one = 1;
+
+    rfbLog("Making connection to client on host %s port %d\n",
+	   host,port);
+
+    if ((sock = ConnectToTcpAddr(host, port)) < 0) {
+	rfbLogPerror("connection failed");
+	return -1;
+    }
+
+#ifndef WIN32
+    if (fcntl(sock, F_SETFL, O_NONBLOCK) < 0) {
+	rfbLogPerror("fcntl failed");
+	close(sock);
+	return -1;
+    }
+#endif
+
+    if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
+		   (char *)&one, sizeof(one)) < 0) {
+	rfbLogPerror("setsockopt failed");
+	close(sock);
+	return -1;
+    }
+
+    /* AddEnabledDevice(sock); */
+    FD_SET(sock, &rfbScreen->allFds);
+    rfbScreen->maxFd = max(sock,rfbScreen->maxFd);
+
+    return sock;
+}
+
+/*
+ * ReadExact reads an exact number of bytes from a client.  Returns 1 if
+ * those bytes have been read, 0 if the other end has closed, or -1 if an error
+ * occurred (errno is set to ETIMEDOUT if it timed out).
+ */
+
+int
+ReadExactTimeout(rfbClientPtr cl, char* buf, int len, int timeout)
+{
+    int sock = cl->sock;
+    int n;
+    fd_set fds;
+    struct timeval tv;
+
+    while (len > 0) {
+        n = read(sock, buf, len);
+
+        if (n > 0) {
+
+            buf += n;
+            len -= n;
+
+        } else if (n == 0) {
+
+            return 0;
+
+        } else {
+#ifdef WIN32
+			errno = WSAGetLastError();
+#endif
+	    if (errno == EINTR)
+		continue;
+
+            if (errno != EWOULDBLOCK && errno != EAGAIN) {
+                return n;
+            }
+
+            FD_ZERO(&fds);
+            FD_SET(sock, &fds);
+            tv.tv_sec = timeout / 1000;
+            tv.tv_usec = (timeout % 1000) * 1000;
+            n = select(sock+1, &fds, NULL, &fds, &tv);
+            if (n < 0) {
+                rfbLogPerror("ReadExact: select");
+                return n;
+            }
+            if (n == 0) {
+                errno = ETIMEDOUT;
+                return -1;
+            }
+        }
+    }
+    return 1;
+}
+
+int ReadExact(rfbClientPtr cl,char* buf,int len)
+{
+  return(ReadExactTimeout(cl,buf,len,rfbMaxClientWait));
+}
+
+/*
+ * WriteExact writes an exact number of bytes to a client.  Returns 1 if
+ * those bytes have been written, or -1 if an error occurred (errno is set to
+ * ETIMEDOUT if it timed out).
+ */
+
+int
+WriteExact(cl, buf, len)
+     rfbClientPtr cl;
+     const char *buf;
+     int len;
+{
+    int sock = cl->sock;
+    int n;
+    fd_set fds;
+    struct timeval tv;
+    int totalTimeWaited = 0;
+
+    LOCK(cl->outputMutex);
+    while (len > 0) {
+        n = write(sock, buf, len);
+
+        if (n > 0) {
+
+            buf += n;
+            len -= n;
+
+        } else if (n == 0) {
+
+            rfbErr("WriteExact: write returned 0?\n");
+            return 0;
+
+        } else {
+#ifdef WIN32
+			errno = WSAGetLastError();
+#endif
+	    if (errno == EINTR)
+		continue;
+
+            if (errno != EWOULDBLOCK && errno != EAGAIN) {
+	        UNLOCK(cl->outputMutex);
+                return n;
+            }
+
+            /* Retry every 5 seconds until we exceed rfbMaxClientWait.  We
+               need to do this because select doesn't necessarily return
+               immediately when the other end has gone away */
+
+            FD_ZERO(&fds);
+            FD_SET(sock, &fds);
+            tv.tv_sec = 5;
+            tv.tv_usec = 0;
+            n = select(sock+1, NULL, &fds, NULL /* &fds */, &tv);
+	    if (n < 0) {
+       	        if(errno==EINTR)
+		    continue;
+                rfbLogPerror("WriteExact: select");
+                UNLOCK(cl->outputMutex);
+                return n;
+            }
+            if (n == 0) {
+                totalTimeWaited += 5000;
+                if (totalTimeWaited >= rfbMaxClientWait) {
+                    errno = ETIMEDOUT;
+                    UNLOCK(cl->outputMutex);
+                    return -1;
+                }
+            } else {
+                totalTimeWaited = 0;
+            }
+        }
+    }
+    UNLOCK(cl->outputMutex);
+    return 1;
+}
+
+int
+ListenOnTCPPort(port)
+    int port;
+{
+    struct sockaddr_in addr;
+    int sock;
+    int one = 1;
+
+    memset(&addr, 0, sizeof(addr));
+    addr.sin_family = AF_INET;
+    addr.sin_port = htons(port);
+    /* addr.sin_addr.s_addr = interface.s_addr; */
+    addr.sin_addr.s_addr = INADDR_ANY;
+
+    if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+	return -1;
+    }
+    if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
+		   (char *)&one, sizeof(one)) < 0) {
+	close(sock);
+	return -1;
+    }
+    if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+	close(sock);
+	return -1;
+    }
+    if (listen(sock, 5) < 0) {
+	close(sock);
+	return -1;
+    }
+
+    return sock;
+}
+
+int
+ConnectToTcpAddr(host, port)
+    char *host;
+    int port;
+{
+    struct hostent *hp;
+    int sock;
+    struct sockaddr_in addr;
+
+    memset(&addr, 0, sizeof(addr));
+    addr.sin_family = AF_INET;
+    addr.sin_port = htons(port);
+
+    if ((addr.sin_addr.s_addr = inet_addr(host)) == INADDR_NONE)
+    {
+	if (!(hp = gethostbyname(host))) {
+	    errno = EINVAL;
+	    return -1;
+	}
+	addr.sin_addr.s_addr = *(unsigned long *)hp->h_addr;
+    }
+
+    if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+	return -1;
+    }
+
+    if (connect(sock, (struct sockaddr *)&addr, (sizeof(addr))) < 0) {
+	close(sock);
+	return -1;
+    }
+
+    return sock;
+}
+
+int
+ListenOnUDPPort(port)
+    int port;
+{
+    struct sockaddr_in addr;
+    int sock;
+    int one = 1;
+
+    memset(&addr, 0, sizeof(addr));
+    addr.sin_family = AF_INET;
+    addr.sin_port = htons(port);
+    /* addr.sin_addr.s_addr = interface.s_addr; */
+    addr.sin_addr.s_addr = INADDR_ANY;
+
+    if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+	return -1;
+    }
+    if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
+		   (char *)&one, sizeof(one)) < 0) {
+	return -1;
+    }
+    if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+	return -1;
+    }
+
+    return sock;
+}
diff --git a/libvncserver/stats.c b/libvncserver/stats.c
new file mode 100755
index 0000000..931c5d2
--- /dev/null
+++ b/libvncserver/stats.c
@@ -0,0 +1,119 @@
+/*
+ * stats.c
+ */
+
+/*
+ *  Copyright (C) 2002 RealVNC Ltd.
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+
+static const char* encNames[] = {
+    "raw", "copyRect", "RRE", "[encoding 3]", "CoRRE", "hextile",
+    "zlib", "tight", "[encoding 8]", "[encoding 9]", "[encoding 10]",
+    "[encoding 11]", "[encoding 12]", "[encoding 13]", "[encoding 14]",
+#ifdef LIBVNCSERVER_BACKCHANNEL
+    "BackChannel",
+#else
+    "[encoding 15]",
+#endif
+    "ZRLE", "[encoding 17]", "[encoding 18]", "[encoding 19]", "[encoding 20]"
+};
+
+
+void
+rfbResetStats(rfbClientPtr cl)
+{
+    int i;
+    for (i = 0; i < MAX_ENCODINGS; i++) {
+        cl->rfbBytesSent[i] = 0;
+        cl->rfbRectanglesSent[i] = 0;
+    }
+    cl->rfbLastRectMarkersSent = 0;
+    cl->rfbLastRectBytesSent = 0;
+    cl->rfbCursorShapeBytesSent = 0;
+    cl->rfbCursorShapeUpdatesSent = 0;
+    cl->rfbCursorPosBytesSent = 0;
+    cl->rfbCursorPosUpdatesSent = 0;
+    cl->rfbFramebufferUpdateMessagesSent = 0;
+    cl->rfbRawBytesEquivalent = 0;
+    cl->rfbKeyEventsRcvd = 0;
+    cl->rfbPointerEventsRcvd = 0;
+}
+
+void
+rfbPrintStats(rfbClientPtr cl)
+{
+    int i;
+    int totalRectanglesSent = 0;
+    int totalBytesSent = 0;
+
+    rfbLog("Statistics:\n");
+
+    if ((cl->rfbKeyEventsRcvd != 0) || (cl->rfbPointerEventsRcvd != 0))
+        rfbLog("  key events received %d, pointer events %d\n",
+                cl->rfbKeyEventsRcvd, cl->rfbPointerEventsRcvd);
+
+    for (i = 0; i < MAX_ENCODINGS; i++) {
+        totalRectanglesSent += cl->rfbRectanglesSent[i];
+        totalBytesSent += cl->rfbBytesSent[i];
+    }
+
+    totalRectanglesSent += (cl->rfbCursorShapeUpdatesSent +
+                            cl->rfbCursorPosUpdatesSent +
+			    cl->rfbLastRectMarkersSent);
+    totalBytesSent += (cl->rfbCursorShapeBytesSent +
+                       cl->rfbCursorPosBytesSent +
+                       cl->rfbLastRectBytesSent);
+
+    rfbLog("  framebuffer updates %d, rectangles %d, bytes %d\n",
+            cl->rfbFramebufferUpdateMessagesSent, totalRectanglesSent,
+            totalBytesSent);
+
+    if (cl->rfbLastRectMarkersSent != 0)
+	rfbLog("    LastRect and NewFBSize markers %d, bytes %d\n",
+		cl->rfbLastRectMarkersSent, cl->rfbLastRectBytesSent);
+
+    if (cl->rfbCursorShapeUpdatesSent != 0)
+	rfbLog("    cursor shape updates %d, bytes %d\n",
+		cl->rfbCursorShapeUpdatesSent, cl->rfbCursorShapeBytesSent);
+
+    if (cl->rfbCursorPosUpdatesSent != 0)
+	rfbLog("    cursor position updates %d, bytes %d\n",
+		cl->rfbCursorPosUpdatesSent, cl->rfbCursorPosBytesSent);
+
+    for (i = 0; i < MAX_ENCODINGS; i++) {
+        if (cl->rfbRectanglesSent[i] != 0)
+            rfbLog("    %s rectangles %d, bytes %d\n",
+                   encNames[i], cl->rfbRectanglesSent[i], cl->rfbBytesSent[i]);
+    }
+
+    if ((totalBytesSent - cl->rfbBytesSent[rfbEncodingCopyRect]) != 0) {
+        rfbLog("  raw bytes equivalent %d, compression ratio %f\n",
+                cl->rfbRawBytesEquivalent,
+                (double)cl->rfbRawBytesEquivalent
+                / (double)(totalBytesSent
+                           - cl->rfbBytesSent[rfbEncodingCopyRect]-
+			   cl->rfbCursorShapeBytesSent -
+                           cl->rfbCursorPosBytesSent -
+			   cl->rfbLastRectBytesSent));
+    }
+}
diff --git a/libvncserver/tableinit24.c b/libvncserver/tableinit24.c
new file mode 100755
index 0000000..39e9920
--- /dev/null
+++ b/libvncserver/tableinit24.c
@@ -0,0 +1,157 @@
+/*
+  24 bit
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+static void
+rfbInitOneRGBTable24 (uint8_t *table, int inMax, int outMax, int outShift,int swap);
+
+
+static void
+rfbInitColourMapSingleTable24(char **table, rfbPixelFormat *in,
+                            rfbPixelFormat *out,rfbColourMap* colourMap)
+{
+    uint32_t i, r, g, b, outValue;
+    uint8_t *t;
+    uint8_t c;
+    unsigned int nEntries = 1 << in->bitsPerPixel;
+    int shift = colourMap->is16?16:8;
+
+    if (*table) free(*table);
+    *table = (char *)malloc(nEntries * 3 + 1);
+    t = (uint8_t *)*table;
+
+    for (i = 0; i < nEntries; i++) {
+        r = g = b = 0;
+	if(i < colourMap->count) {
+	  if(colourMap->is16) {
+	    r = colourMap->data.shorts[3*i+0];
+	    g = colourMap->data.shorts[3*i+1];
+	    b = colourMap->data.shorts[3*i+2];
+	  } else {
+	    r = colourMap->data.bytes[3*i+0];
+	    g = colourMap->data.bytes[3*i+1];
+	    b = colourMap->data.bytes[3*i+2];
+	  }
+	}
+        outValue = ((((r * (1 + out->redMax)) >> shift) << out->redShift) |
+                (((g * (1 + out->greenMax)) >> shift) << out->greenShift) |
+                (((b * (1 + out->blueMax)) >> shift) << out->blueShift));
+	*(uint32_t*)&t[3*i] = outValue;
+	if(!rfbEndianTest)
+	  memmove(t+3*i,t+3*i+1,3);
+        if (out->bigEndian != in->bigEndian) {
+	  c = t[3*i]; t[3*i] = t[3*i+2]; t[3*i+2] = c;
+        }
+    }
+}
+
+/*
+ * rfbInitTrueColourSingleTable sets up a single lookup table for truecolour
+ * translation.
+ */
+
+static void
+rfbInitTrueColourSingleTable24 (char **table, rfbPixelFormat *in,
+                                 rfbPixelFormat *out)
+{
+    int i,outValue;
+    int inRed, inGreen, inBlue, outRed, outGreen, outBlue;
+    uint8_t *t;
+    uint8_t c;
+    int nEntries = 1 << in->bitsPerPixel;
+
+    if (*table) free(*table);
+    *table = (char *)malloc(nEntries * 3 + 1);
+    t = (uint8_t *)*table;
+
+    for (i = 0; i < nEntries; i++) {
+        inRed   = (i >> in->redShift)   & in->redMax;
+        inGreen = (i >> in->greenShift) & in->greenMax;
+        inBlue  = (i >> in->blueShift)  & in->blueMax;
+
+        outRed   = (inRed   * out->redMax   + in->redMax / 2)   / in->redMax;
+        outGreen = (inGreen * out->greenMax + in->greenMax / 2) / in->greenMax;
+        outBlue  = (inBlue  * out->blueMax  + in->blueMax / 2)  / in->blueMax;
+
+	outValue = ((outRed   << out->redShift)   |
+                (outGreen << out->greenShift) |
+                (outBlue  << out->blueShift));
+	*(uint32_t*)&t[3*i] = outValue;
+	if(!rfbEndianTest)
+	  memmove(t+3*i,t+3*i+1,3);
+        if (out->bigEndian != in->bigEndian) {
+	  c = t[3*i]; t[3*i] = t[3*i+2]; t[3*i+2] = c;
+        }
+    }
+}
+
+
+/*
+ * rfbInitTrueColourRGBTables sets up three separate lookup tables for the
+ * red, green and blue values.
+ */
+
+static void
+rfbInitTrueColourRGBTables24 (char **table, rfbPixelFormat *in,
+                               rfbPixelFormat *out)
+{
+    uint8_t *redTable;
+    uint8_t *greenTable;
+    uint8_t *blueTable;
+
+    if (*table) free(*table);
+    *table = (char *)malloc((in->redMax + in->greenMax + in->blueMax + 3)
+                            * 3 + 1);
+    redTable = (uint8_t *)*table;
+    greenTable = redTable + 3*(in->redMax + 1);
+    blueTable = greenTable + 3*(in->greenMax + 1);
+
+    rfbInitOneRGBTable24 (redTable, in->redMax, out->redMax,
+                           out->redShift, (out->bigEndian != in->bigEndian));
+    rfbInitOneRGBTable24 (greenTable, in->greenMax, out->greenMax,
+                           out->greenShift, (out->bigEndian != in->bigEndian));
+    rfbInitOneRGBTable24 (blueTable, in->blueMax, out->blueMax,
+                           out->blueShift, (out->bigEndian != in->bigEndian));
+}
+
+static void
+rfbInitOneRGBTable24 (uint8_t *table, int inMax, int outMax, int outShift,
+                       int swap)
+{
+    int i;
+    int nEntries = inMax + 1;
+    uint32_t outValue;
+    uint8_t c;
+
+    for (i = 0; i < nEntries; i++) {
+      outValue = ((i * outMax + inMax / 2) / inMax) << outShift;
+      *(uint32_t *)&table[3*i] = outValue;
+      if(!rfbEndianTest)
+	memmove(table+3*i,table+3*i+1,3);
+        if (swap) {
+	  c = table[3*i]; table[3*i] = table[3*i+2];
+	  table[3*i+2] = c;
+        }
+    }
+}
diff --git a/libvncserver/tableinitcmtemplate.c b/libvncserver/tableinitcmtemplate.c
new file mode 100755
index 0000000..df01b23
--- /dev/null
+++ b/libvncserver/tableinitcmtemplate.c
@@ -0,0 +1,84 @@
+/*
+ * tableinitcmtemplate.c - template for initialising lookup tables for
+ * translation from a colour map to true colour.
+ *
+ * This file shouldn't be compiled.  It is included multiple times by
+ * translate.c, each time with a different definition of the macro OUT.
+ * For each value of OUT, this file defines a function which allocates an
+ * appropriately sized lookup table and initialises it.
+ *
+ * I know this code isn't nice to read because of all the macros, but
+ * efficiency is important here.
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#if !defined(OUT)
+#error "This file shouldn't be compiled."
+#error "It is included as part of translate.c"
+#endif
+
+#define OUT_T CONCAT3E(uint,OUT,_t)
+#define SwapOUT(x) CONCAT2E(Swap,OUT(x))
+#define rfbInitColourMapSingleTableOUT \
+                                CONCAT2E(rfbInitColourMapSingleTable,OUT)
+
+static void
+rfbInitColourMapSingleTableOUT(char **table, rfbPixelFormat *in,
+                            rfbPixelFormat *out,rfbColourMap* colourMap)
+{
+    uint32_t i, r, g, b;
+    OUT_T *t;
+    uint32_t nEntries = 1 << in->bitsPerPixel;
+    int shift = colourMap->is16?16:8;
+
+    if (*table) free(*table);
+    *table = (char *)malloc(nEntries * sizeof(OUT_T));
+    t = (OUT_T *)*table;
+
+    for (i = 0; i < nEntries; i++) {
+        r = g = b = 0;
+	if(i < colourMap->count) {
+	  if(colourMap->is16) {
+	    r = colourMap->data.shorts[3*i+0];
+	    g = colourMap->data.shorts[3*i+1];
+	    b = colourMap->data.shorts[3*i+2];
+	  } else {
+	    r = colourMap->data.bytes[3*i+0];
+	    g = colourMap->data.bytes[3*i+1];
+	    b = colourMap->data.bytes[3*i+2];
+	  }
+	}
+        t[i] = ((((r * (1 + out->redMax)) >> shift) << out->redShift) |
+                (((g * (1 + out->greenMax)) >> shift) << out->greenShift) |
+                (((b * (1 + out->blueMax)) >> shift) << out->blueShift));
+#if (OUT != 8)
+        if (out->bigEndian != in->bigEndian) {
+            t[i] = SwapOUT(t[i]);
+        }
+#endif
+    }
+}
+
+#undef OUT_T
+#undef SwapOUT
+#undef rfbInitColourMapSingleTableOUT
diff --git a/libvncserver/tableinittctemplate.c b/libvncserver/tableinittctemplate.c
new file mode 100755
index 0000000..8d4f742
--- /dev/null
+++ b/libvncserver/tableinittctemplate.c
@@ -0,0 +1,142 @@
+/*
+ * tableinittctemplate.c - template for initialising lookup tables for
+ * truecolour to truecolour translation.
+ *
+ * This file shouldn't be compiled.  It is included multiple times by
+ * translate.c, each time with a different definition of the macro OUT.
+ * For each value of OUT, this file defines two functions for initialising
+ * lookup tables.  One is for truecolour translation using a single lookup
+ * table, the other is for truecolour translation using three separate
+ * lookup tables for the red, green and blue values.
+ *
+ * I know this code isn't nice to read because of all the macros, but
+ * efficiency is important here.
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#if !defined(OUT)
+#error "This file shouldn't be compiled."
+#error "It is included as part of translate.c"
+#endif
+
+#define OUT_T CONCAT3E(uint,OUT,_t)
+#define SwapOUT(x) CONCAT2E(Swap,OUT(x))
+#define rfbInitTrueColourSingleTableOUT \
+                                CONCAT2E(rfbInitTrueColourSingleTable,OUT)
+#define rfbInitTrueColourRGBTablesOUT CONCAT2E(rfbInitTrueColourRGBTables,OUT)
+#define rfbInitOneRGBTableOUT CONCAT2E(rfbInitOneRGBTable,OUT)
+
+static void
+rfbInitOneRGBTableOUT (OUT_T *table, int inMax, int outMax, int outShift,
+                       int swap);
+
+
+/*
+ * rfbInitTrueColourSingleTable sets up a single lookup table for truecolour
+ * translation.
+ */
+
+static void
+rfbInitTrueColourSingleTableOUT (char **table, rfbPixelFormat *in,
+                                 rfbPixelFormat *out)
+{
+    int i;
+    int inRed, inGreen, inBlue, outRed, outGreen, outBlue;
+    OUT_T *t;
+    int nEntries = 1 << in->bitsPerPixel;
+
+    if (*table) free(*table);
+    *table = (char *)malloc(nEntries * sizeof(OUT_T));
+    t = (OUT_T *)*table;
+
+    for (i = 0; i < nEntries; i++) {
+        inRed   = (i >> in->redShift)   & in->redMax;
+        inGreen = (i >> in->greenShift) & in->greenMax;
+        inBlue  = (i >> in->blueShift)  & in->blueMax;
+
+        outRed   = (inRed   * out->redMax   + in->redMax / 2)   / in->redMax;
+        outGreen = (inGreen * out->greenMax + in->greenMax / 2) / in->greenMax;
+        outBlue  = (inBlue  * out->blueMax  + in->blueMax / 2)  / in->blueMax;
+
+        t[i] = ((outRed   << out->redShift)   |
+                (outGreen << out->greenShift) |
+                (outBlue  << out->blueShift));
+#if (OUT != 8)
+        if (out->bigEndian != in->bigEndian) {
+            t[i] = SwapOUT(t[i]);
+        }
+#endif
+    }
+}
+
+
+/*
+ * rfbInitTrueColourRGBTables sets up three separate lookup tables for the
+ * red, green and blue values.
+ */
+
+static void
+rfbInitTrueColourRGBTablesOUT (char **table, rfbPixelFormat *in,
+                               rfbPixelFormat *out)
+{
+    OUT_T *redTable;
+    OUT_T *greenTable;
+    OUT_T *blueTable;
+
+    if (*table) free(*table);
+    *table = (char *)malloc((in->redMax + in->greenMax + in->blueMax + 3)
+                            * sizeof(OUT_T));
+    redTable = (OUT_T *)*table;
+    greenTable = redTable + in->redMax + 1;
+    blueTable = greenTable + in->greenMax + 1;
+
+    rfbInitOneRGBTableOUT (redTable, in->redMax, out->redMax,
+                           out->redShift, (out->bigEndian != in->bigEndian));
+    rfbInitOneRGBTableOUT (greenTable, in->greenMax, out->greenMax,
+                           out->greenShift, (out->bigEndian != in->bigEndian));
+    rfbInitOneRGBTableOUT (blueTable, in->blueMax, out->blueMax,
+                           out->blueShift, (out->bigEndian != in->bigEndian));
+}
+
+static void
+rfbInitOneRGBTableOUT (OUT_T *table, int inMax, int outMax, int outShift,
+                       int swap)
+{
+    int i;
+    int nEntries = inMax + 1;
+
+    for (i = 0; i < nEntries; i++) {
+        table[i] = ((i * outMax + inMax / 2) / inMax) << outShift;
+#if (OUT != 8)
+        if (swap) {
+            table[i] = SwapOUT(table[i]);
+        }
+#endif
+    }
+}
+
+#undef OUT_T
+#undef SwapOUT
+#undef rfbInitTrueColourSingleTableOUT
+#undef rfbInitTrueColourRGBTablesOUT
+#undef rfbInitOneRGBTableOUT
diff --git a/libvncserver/tabletrans24template.c b/libvncserver/tabletrans24template.c
new file mode 100755
index 0000000..4b3a0a0
--- /dev/null
+++ b/libvncserver/tabletrans24template.c
@@ -0,0 +1,281 @@
+/*
+ * tabletranstemplate.c - template for translation using lookup tables.
+ *
+ * This file shouldn't be compiled.  It is included multiple times by
+ * translate.c, each time with different definitions of the macros IN and OUT.
+ *
+ * For each pair of values IN and OUT, this file defines two functions for
+ * translating a given rectangle of pixel data.  One uses a single lookup
+ * table, and the other uses three separate lookup tables for the red, green
+ * and blue values.
+ *
+ * I know this code isn't nice to read because of all the macros, but
+ * efficiency is important here.
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#if !defined(BPP)
+#error "This file shouldn't be compiled."
+#error "It is included as part of translate.c"
+#endif
+
+#if BPP == 24
+
+/*
+ * rfbTranslateWithSingleTableINtoOUT translates a rectangle of pixel data
+ * using a single lookup table.
+ */
+
+static void
+rfbTranslateWithSingleTable24to24 (char *table, rfbPixelFormat *in,
+                                    rfbPixelFormat *out,
+                                    char *iptr, char *optr,
+                                    int bytesBetweenInputLines,
+                                    int width, int height)
+{
+    uint8_t *ip = (uint8_t *)iptr;
+    uint8_t *op = (uint8_t *)optr;
+    int ipextra = bytesBetweenInputLines - width * 3;
+    uint8_t *opLineEnd;
+    uint8_t *t = (uint8_t *)table;
+    int shift = rfbEndianTest?0:8;
+    uint8_t c;
+
+    while (height > 0) {
+        opLineEnd = op + width*3;
+
+        while (op < opLineEnd) {
+	    *(uint32_t*)op = t[((*(uint32_t *)ip)>>shift)&0x00ffffff];
+	    if(!rfbEndianTest)
+	      memmove(op,op+1,3);
+	    if (out->bigEndian != in->bigEndian) {
+	      c = op[0]; op[0] = op[2]; op[2] = c;
+	    }
+	    op += 3;
+	    ip += 3;
+        }
+
+        ip += ipextra;
+        height--;
+    }
+}
+
+/*
+ * rfbTranslateWithRGBTablesINtoOUT translates a rectangle of pixel data
+ * using three separate lookup tables for the red, green and blue values.
+ */
+
+static void
+rfbTranslateWithRGBTables24to24 (char *table, rfbPixelFormat *in,
+                                  rfbPixelFormat *out,
+                                  char *iptr, char *optr,
+                                  int bytesBetweenInputLines,
+                                  int width, int height)
+{
+    uint8_t *ip = (uint8_t *)iptr;
+    uint8_t *op = (uint8_t *)optr;
+    int ipextra = bytesBetweenInputLines - width*3;
+    uint8_t *opLineEnd;
+    uint8_t *redTable = (uint8_t *)table;
+    uint8_t *greenTable = redTable + 3*(in->redMax + 1);
+    uint8_t *blueTable = greenTable + 3*(in->greenMax + 1);
+    uint32_t outValue,inValue;
+    int shift = rfbEndianTest?0:8;
+
+    while (height > 0) {
+        opLineEnd = op+3*width;
+
+        while (op < opLineEnd) {
+	    inValue = ((*(uint32_t *)ip)>>shift)&0x00ffffff;
+            outValue = (redTable[(inValue >> in->redShift) & in->redMax] |
+                       greenTable[(inValue >> in->greenShift) & in->greenMax] |
+                       blueTable[(inValue >> in->blueShift) & in->blueMax]);
+	    memcpy(op,&outValue,3);
+	    op += 3;
+            ip+=3;
+        }
+        ip += ipextra;
+        height--;
+    }
+}
+
+#else
+
+#define IN_T CONCAT3E(uint,BPP,_t)
+#define OUT_T CONCAT3E(uint,BPP,_t)
+#define rfbTranslateWithSingleTable24toOUT \
+                                CONCAT4E(rfbTranslateWithSingleTable,24,to,BPP)
+#define rfbTranslateWithSingleTableINto24 \
+                                CONCAT4E(rfbTranslateWithSingleTable,BPP,to,24)
+#define rfbTranslateWithRGBTables24toOUT \
+                                CONCAT4E(rfbTranslateWithRGBTables,24,to,BPP)
+#define rfbTranslateWithRGBTablesINto24 \
+                                CONCAT4E(rfbTranslateWithRGBTables,BPP,to,24)
+
+/*
+ * rfbTranslateWithSingleTableINtoOUT translates a rectangle of pixel data
+ * using a single lookup table.
+ */
+
+static void
+rfbTranslateWithSingleTable24toOUT (char *table, rfbPixelFormat *in,
+                                    rfbPixelFormat *out,
+                                    char *iptr, char *optr,
+                                    int bytesBetweenInputLines,
+                                    int width, int height)
+{
+    uint8_t *ip = (uint8_t *)iptr;
+    OUT_T *op = (OUT_T *)optr;
+    int ipextra = bytesBetweenInputLines - width*3;
+    OUT_T *opLineEnd;
+    OUT_T *t = (OUT_T *)table;
+    int shift = rfbEndianTest?0:8;
+
+    while (height > 0) {
+        opLineEnd = op + width;
+
+        while (op < opLineEnd) {
+            *(op++) = t[((*(uint32_t *)ip)>>shift)&0x00ffffff];
+	    ip+=3;
+        }
+
+        ip += ipextra;
+        height--;
+    }
+}
+
+
+/*
+ * rfbTranslateWithRGBTablesINtoOUT translates a rectangle of pixel data
+ * using three separate lookup tables for the red, green and blue values.
+ */
+
+static void
+rfbTranslateWithRGBTables24toOUT (char *table, rfbPixelFormat *in,
+                                  rfbPixelFormat *out,
+                                  char *iptr, char *optr,
+                                  int bytesBetweenInputLines,
+                                  int width, int height)
+{
+    uint8_t *ip = (uint8_t *)iptr;
+    OUT_T *op = (OUT_T *)optr;
+    int ipextra = bytesBetweenInputLines - width*3;
+    OUT_T *opLineEnd;
+    OUT_T *redTable = (OUT_T *)table;
+    OUT_T *greenTable = redTable + in->redMax + 1;
+    OUT_T *blueTable = greenTable + in->greenMax + 1;
+    uint32_t inValue;
+    int shift = rfbEndianTest?0:8;
+
+    while (height > 0) {
+        opLineEnd = &op[width];
+
+        while (op < opLineEnd) {
+	    inValue = ((*(uint32_t *)ip)>>shift)&0x00ffffff;
+            *(op++) = (redTable[(inValue >> in->redShift) & in->redMax] |
+                       greenTable[(inValue >> in->greenShift) & in->greenMax] |
+                       blueTable[(inValue >> in->blueShift) & in->blueMax]);
+            ip+=3;
+        }
+        ip += ipextra;
+        height--;
+    }
+}
+
+/*
+ * rfbTranslateWithSingleTableINto24 translates a rectangle of pixel data
+ * using a single lookup table.
+ */
+
+static void
+rfbTranslateWithSingleTableINto24 (char *table, rfbPixelFormat *in,
+                                    rfbPixelFormat *out,
+                                    char *iptr, char *optr,
+                                    int bytesBetweenInputLines,
+                                    int width, int height)
+{
+    IN_T *ip = (IN_T *)iptr;
+    uint8_t *op = (uint8_t *)optr;
+    int ipextra = bytesBetweenInputLines / sizeof(IN_T) - width;
+    uint8_t *opLineEnd;
+    uint8_t *t = (uint8_t *)table;
+
+    while (height > 0) {
+        opLineEnd = op + width * 3;
+
+        while (op < opLineEnd) {
+	    memcpy(op,&t[3*(*(ip++))],3);
+	    op += 3;
+        }
+
+        ip += ipextra;
+        height--;
+    }
+}
+
+
+/*
+ * rfbTranslateWithRGBTablesINto24 translates a rectangle of pixel data
+ * using three separate lookup tables for the red, green and blue values.
+ */
+
+static void
+rfbTranslateWithRGBTablesINto24 (char *table, rfbPixelFormat *in,
+                                  rfbPixelFormat *out,
+                                  char *iptr, char *optr,
+                                  int bytesBetweenInputLines,
+                                  int width, int height)
+{
+    IN_T *ip = (IN_T *)iptr;
+    uint8_t *op = (uint8_t *)optr;
+    int ipextra = bytesBetweenInputLines / sizeof(IN_T) - width;
+    uint8_t *opLineEnd;
+    uint8_t *redTable = (uint8_t *)table;
+    uint8_t *greenTable = redTable + 3*(in->redMax + 1);
+    uint8_t *blueTable = greenTable + 3*(in->greenMax + 1);
+    uint32_t outValue;
+
+    while (height > 0) {
+        opLineEnd = op+3*width;
+
+        while (op < opLineEnd) {
+            outValue = (redTable[(*ip >> in->redShift) & in->redMax] |
+                       greenTable[(*ip >> in->greenShift) & in->greenMax] |
+                       blueTable[(*ip >> in->blueShift) & in->blueMax]);
+	    memcpy(op,&outValue,3);
+	    op += 3;
+            ip++;
+        }
+        ip += ipextra;
+        height--;
+    }
+}
+
+#undef IN_T
+#undef OUT_T
+#undef rfbTranslateWithSingleTable24toOUT
+#undef rfbTranslateWithRGBTables24toOUT
+#undef rfbTranslateWithSingleTableINto24
+#undef rfbTranslateWithRGBTablesINto24
+
+#endif
diff --git a/libvncserver/tabletranstemplate.c b/libvncserver/tabletranstemplate.c
new file mode 100755
index 0000000..e83c623
--- /dev/null
+++ b/libvncserver/tabletranstemplate.c
@@ -0,0 +1,117 @@
+/*
+ * tabletranstemplate.c - template for translation using lookup tables.
+ *
+ * This file shouldn't be compiled.  It is included multiple times by
+ * translate.c, each time with different definitions of the macros IN and OUT.
+ *
+ * For each pair of values IN and OUT, this file defines two functions for
+ * translating a given rectangle of pixel data.  One uses a single lookup
+ * table, and the other uses three separate lookup tables for the red, green
+ * and blue values.
+ *
+ * I know this code isn't nice to read because of all the macros, but
+ * efficiency is important here.
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#if !defined(IN) || !defined(OUT)
+#error "This file shouldn't be compiled."
+#error "It is included as part of translate.c"
+#endif
+
+#define IN_T CONCAT3E(uint,IN,_t)
+#define OUT_T CONCAT3E(uint,OUT,_t)
+#define rfbTranslateWithSingleTableINtoOUT \
+                                CONCAT4E(rfbTranslateWithSingleTable,IN,to,OUT)
+#define rfbTranslateWithRGBTablesINtoOUT \
+                                CONCAT4E(rfbTranslateWithRGBTables,IN,to,OUT)
+
+/*
+ * rfbTranslateWithSingleTableINtoOUT translates a rectangle of pixel data
+ * using a single lookup table.
+ */
+
+static void
+rfbTranslateWithSingleTableINtoOUT (char *table, rfbPixelFormat *in,
+                                    rfbPixelFormat *out,
+                                    char *iptr, char *optr,
+                                    int bytesBetweenInputLines,
+                                    int width, int height)
+{
+    IN_T *ip = (IN_T *)iptr;
+    OUT_T *op = (OUT_T *)optr;
+    int ipextra = bytesBetweenInputLines / sizeof(IN_T) - width;
+    OUT_T *opLineEnd;
+    OUT_T *t = (OUT_T *)table;
+
+    while (height > 0) {
+        opLineEnd = op + width;
+
+        while (op < opLineEnd) {
+            *(op++) = t[*(ip++)];
+        }
+
+        ip += ipextra;
+        height--;
+    }
+}
+
+
+/*
+ * rfbTranslateWithRGBTablesINtoOUT translates a rectangle of pixel data
+ * using three separate lookup tables for the red, green and blue values.
+ */
+
+static void
+rfbTranslateWithRGBTablesINtoOUT (char *table, rfbPixelFormat *in,
+                                  rfbPixelFormat *out,
+                                  char *iptr, char *optr,
+                                  int bytesBetweenInputLines,
+                                  int width, int height)
+{
+    IN_T *ip = (IN_T *)iptr;
+    OUT_T *op = (OUT_T *)optr;
+    int ipextra = bytesBetweenInputLines / sizeof(IN_T) - width;
+    OUT_T *opLineEnd;
+    OUT_T *redTable = (OUT_T *)table;
+    OUT_T *greenTable = redTable + in->redMax + 1;
+    OUT_T *blueTable = greenTable + in->greenMax + 1;
+
+    while (height > 0) {
+        opLineEnd = &op[width];
+
+        while (op < opLineEnd) {
+            *(op++) = (redTable[(*ip >> in->redShift) & in->redMax] |
+                       greenTable[(*ip >> in->greenShift) & in->greenMax] |
+                       blueTable[(*ip >> in->blueShift) & in->blueMax]);
+            ip++;
+        }
+        ip += ipextra;
+        height--;
+    }
+}
+
+#undef IN_T
+#undef OUT_T
+#undef rfbTranslateWithSingleTableINtoOUT
+#undef rfbTranslateWithRGBTablesINtoOUT
diff --git a/libvncserver/tight.c b/libvncserver/tight.c
new file mode 100644
index 0000000..b97adb9
--- /dev/null
+++ b/libvncserver/tight.c
@@ -0,0 +1,1820 @@
+/*
+ * tight.c
+ *
+ * Routines to implement Tight Encoding
+ */
+
+/*
+ *  Copyright (C) 2000, 2001 Const Kaplinsky.  All Rights Reserved.
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+/*#include <stdio.h>*/
+#include <rfb/rfb.h>
+
+#ifdef WIN32
+#define XMD_H
+#undef FAR
+#define NEEDFAR_POINTERS
+#endif
+
+#include <jpeglib.h>
+
+/* Note: The following constant should not be changed. */
+#define TIGHT_MIN_TO_COMPRESS 12
+
+/* The parameters below may be adjusted. */
+#define MIN_SPLIT_RECT_SIZE     4096
+#define MIN_SOLID_SUBRECT_SIZE  2048
+#define MAX_SPLIT_TILE_SIZE       16
+
+/* May be set to TRUE with "-lazytight" Xvnc option. */
+rfbBool rfbTightDisableGradient = FALSE;
+
+/* This variable is set on every rfbSendRectEncodingTight() call. */
+static rfbBool usePixelFormat24;
+
+
+/* Compression level stuff. The following array contains various
+   encoder parameters for each of 10 compression levels (0..9).
+   Last three parameters correspond to JPEG quality levels (0..9). */
+
+typedef struct TIGHT_CONF_s {
+    int maxRectSize, maxRectWidth;
+    int monoMinRectSize, gradientMinRectSize;
+    int idxZlibLevel, monoZlibLevel, rawZlibLevel, gradientZlibLevel;
+    int gradientThreshold, gradientThreshold24;
+    int idxMaxColorsDivisor;
+    int jpegQuality, jpegThreshold, jpegThreshold24;
+} TIGHT_CONF;
+
+static TIGHT_CONF tightConf[10] = {
+    {   512,   32,   6, 65536, 0, 0, 0, 0,   0,   0,   4,  5, 10000, 23000 },
+    {  2048,  128,   6, 65536, 1, 1, 1, 0,   0,   0,   8, 10,  8000, 18000 },
+    {  6144,  256,   8, 65536, 3, 3, 2, 0,   0,   0,  24, 15,  6500, 15000 },
+    { 10240, 1024,  12, 65536, 5, 5, 3, 0,   0,   0,  32, 25,  5000, 12000 },
+    { 16384, 2048,  12, 65536, 6, 6, 4, 0,   0,   0,  32, 37,  4000, 10000 },
+    { 32768, 2048,  12,  4096, 7, 7, 5, 4, 150, 380,  32, 50,  3000,  8000 },
+    { 65536, 2048,  16,  4096, 7, 7, 6, 4, 170, 420,  48, 60,  2000,  5000 },
+    { 65536, 2048,  16,  4096, 8, 8, 7, 5, 180, 450,  64, 70,  1000,  2500 },
+    { 65536, 2048,  32,  8192, 9, 9, 8, 6, 190, 475,  64, 75,   500,  1200 },
+    { 65536, 2048,  32,  8192, 9, 9, 9, 6, 200, 500,  96, 80,   200,   500 }
+};
+
+static int compressLevel;
+static int qualityLevel;
+
+/* Stuff dealing with palettes. */
+
+typedef struct COLOR_LIST_s {
+    struct COLOR_LIST_s *next;
+    int idx;
+    uint32_t rgb;
+} COLOR_LIST;
+
+typedef struct PALETTE_ENTRY_s {
+    COLOR_LIST *listNode;
+    int numPixels;
+} PALETTE_ENTRY;
+
+typedef struct PALETTE_s {
+    PALETTE_ENTRY entry[256];
+    COLOR_LIST *hash[256];
+    COLOR_LIST list[256];
+} PALETTE;
+
+static int paletteNumColors, paletteMaxColors;
+static uint32_t monoBackground, monoForeground;
+static PALETTE palette;
+
+/* Pointers to dynamically-allocated buffers. */
+
+static int tightBeforeBufSize = 0;
+static char *tightBeforeBuf = NULL;
+
+static int tightAfterBufSize = 0;
+static char *tightAfterBuf = NULL;
+
+static int *prevRowBuf = NULL;
+
+void TightCleanup()
+{
+  if(tightBeforeBufSize) {
+    free(tightBeforeBuf);
+    tightBeforeBufSize=0;
+  }
+  if(tightAfterBufSize) {
+    free(tightAfterBuf);
+    tightAfterBufSize=0;
+  }
+}
+
+/* Prototypes for static functions. */
+
+static void FindBestSolidArea (rfbClientPtr cl, int x, int y, int w, int h,
+                               uint32_t colorValue, int *w_ptr, int *h_ptr);
+static void ExtendSolidArea   (rfbClientPtr cl, int x, int y, int w, int h,
+                               uint32_t colorValue,
+                               int *x_ptr, int *y_ptr, int *w_ptr, int *h_ptr);
+static rfbBool CheckSolidTile    (rfbClientPtr cl, int x, int y, int w, int h,
+                               uint32_t *colorPtr, rfbBool needSameColor);
+static rfbBool CheckSolidTile8   (rfbClientPtr cl, int x, int y, int w, int h,
+                               uint32_t *colorPtr, rfbBool needSameColor);
+static rfbBool CheckSolidTile16  (rfbClientPtr cl, int x, int y, int w, int h,
+                               uint32_t *colorPtr, rfbBool needSameColor);
+static rfbBool CheckSolidTile32  (rfbClientPtr cl, int x, int y, int w, int h,
+                               uint32_t *colorPtr, rfbBool needSameColor);
+
+static rfbBool SendRectSimple    (rfbClientPtr cl, int x, int y, int w, int h);
+static rfbBool SendSubrect       (rfbClientPtr cl, int x, int y, int w, int h);
+static rfbBool SendTightHeader   (rfbClientPtr cl, int x, int y, int w, int h);
+
+static rfbBool SendSolidRect     (rfbClientPtr cl);
+static rfbBool SendMonoRect      (rfbClientPtr cl, int w, int h);
+static rfbBool SendIndexedRect   (rfbClientPtr cl, int w, int h);
+static rfbBool SendFullColorRect (rfbClientPtr cl, int w, int h);
+static rfbBool SendGradientRect  (rfbClientPtr cl, int w, int h);
+
+static rfbBool CompressData(rfbClientPtr cl, int streamId, int dataLen,
+                         int zlibLevel, int zlibStrategy);
+static rfbBool SendCompressedData(rfbClientPtr cl, int compressedLen);
+
+static void FillPalette8(int count);
+static void FillPalette16(int count);
+static void FillPalette32(int count);
+
+static void PaletteReset(void);
+static int PaletteInsert(uint32_t rgb, int numPixels, int bpp);
+
+static void Pack24(rfbClientPtr cl, char *buf, rfbPixelFormat *fmt, int count);
+
+static void EncodeIndexedRect16(uint8_t *buf, int count);
+static void EncodeIndexedRect32(uint8_t *buf, int count);
+
+static void EncodeMonoRect8(uint8_t *buf, int w, int h);
+static void EncodeMonoRect16(uint8_t *buf, int w, int h);
+static void EncodeMonoRect32(uint8_t *buf, int w, int h);
+
+static void FilterGradient24(rfbClientPtr cl, char *buf, rfbPixelFormat *fmt, int w, int h);
+static void FilterGradient16(rfbClientPtr cl, uint16_t *buf, rfbPixelFormat *fmt, int w, int h);
+static void FilterGradient32(rfbClientPtr cl, uint32_t *buf, rfbPixelFormat *fmt, int w, int h);
+
+static int DetectSmoothImage(rfbClientPtr cl, rfbPixelFormat *fmt, int w, int h);
+static unsigned long DetectSmoothImage24(rfbClientPtr cl, rfbPixelFormat *fmt, int w, int h);
+static unsigned long DetectSmoothImage16(rfbClientPtr cl, rfbPixelFormat *fmt, int w, int h);
+static unsigned long DetectSmoothImage32(rfbClientPtr cl, rfbPixelFormat *fmt, int w, int h);
+
+static rfbBool SendJpegRect(rfbClientPtr cl, int x, int y, int w, int h,
+                         int quality);
+static void PrepareRowForJpeg(rfbClientPtr cl, uint8_t *dst, int x, int y, int count);
+static void PrepareRowForJpeg24(rfbClientPtr cl, uint8_t *dst, int x, int y, int count);
+static void PrepareRowForJpeg16(rfbClientPtr cl, uint8_t *dst, int x, int y, int count);
+static void PrepareRowForJpeg32(rfbClientPtr cl, uint8_t *dst, int x, int y, int count);
+
+static void JpegInitDestination(j_compress_ptr cinfo);
+static boolean JpegEmptyOutputBuffer(j_compress_ptr cinfo);
+static void JpegTermDestination(j_compress_ptr cinfo);
+static void JpegSetDstManager(j_compress_ptr cinfo);
+
+
+/*
+ * Tight encoding implementation.
+ */
+
+int
+rfbNumCodedRectsTight(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    int maxRectSize, maxRectWidth;
+    int subrectMaxWidth, subrectMaxHeight;
+
+    /* No matter how many rectangles we will send if LastRect markers
+       are used to terminate rectangle stream. */
+    if (cl->enableLastRectEncoding && w * h >= MIN_SPLIT_RECT_SIZE)
+      return 0;
+
+    maxRectSize = tightConf[cl->tightCompressLevel].maxRectSize;
+    maxRectWidth = tightConf[cl->tightCompressLevel].maxRectWidth;
+
+    if (w > maxRectWidth || w * h > maxRectSize) {
+        subrectMaxWidth = (w > maxRectWidth) ? maxRectWidth : w;
+        subrectMaxHeight = maxRectSize / subrectMaxWidth;
+        return (((w - 1) / maxRectWidth + 1) *
+                ((h - 1) / subrectMaxHeight + 1));
+    } else {
+        return 1;
+    }
+}
+
+rfbBool
+rfbSendRectEncodingTight(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    int nMaxRows;
+    uint32_t colorValue;
+    int dx, dy, dw, dh;
+    int x_best, y_best, w_best, h_best;
+    char *fbptr;
+
+    rfbSendUpdateBuf(cl);
+
+    compressLevel = cl->tightCompressLevel;
+    qualityLevel = cl->tightQualityLevel;
+
+    if ( cl->format.depth == 24 && cl->format.redMax == 0xFF &&
+         cl->format.greenMax == 0xFF && cl->format.blueMax == 0xFF ) {
+        usePixelFormat24 = TRUE;
+    } else {
+        usePixelFormat24 = FALSE;
+    }
+
+    if (!cl->enableLastRectEncoding || w * h < MIN_SPLIT_RECT_SIZE)
+        return SendRectSimple(cl, x, y, w, h);
+
+    /* Make sure we can write at least one pixel into tightBeforeBuf. */
+
+    if (tightBeforeBufSize < 4) {
+        tightBeforeBufSize = 4;
+        if (tightBeforeBuf == NULL)
+            tightBeforeBuf = (char *)malloc(tightBeforeBufSize);
+        else
+            tightBeforeBuf = (char *)realloc(tightBeforeBuf,
+                                              tightBeforeBufSize);
+    }
+
+    /* Calculate maximum number of rows in one non-solid rectangle. */
+
+    {
+        int maxRectSize, maxRectWidth, nMaxWidth;
+
+        maxRectSize = tightConf[compressLevel].maxRectSize;
+        maxRectWidth = tightConf[compressLevel].maxRectWidth;
+        nMaxWidth = (w > maxRectWidth) ? maxRectWidth : w;
+        nMaxRows = maxRectSize / nMaxWidth;
+    }
+
+    /* Try to find large solid-color areas and send them separately. */
+
+    for (dy = y; dy < y + h; dy += MAX_SPLIT_TILE_SIZE) {
+
+        /* If a rectangle becomes too large, send its upper part now. */
+
+        if (dy - y >= nMaxRows) {
+            if (!SendRectSimple(cl, x, y, w, nMaxRows))
+                return 0;
+            y += nMaxRows;
+            h -= nMaxRows;
+        }
+
+        dh = (dy + MAX_SPLIT_TILE_SIZE <= y + h) ?
+            MAX_SPLIT_TILE_SIZE : (y + h - dy);
+
+        for (dx = x; dx < x + w; dx += MAX_SPLIT_TILE_SIZE) {
+
+            dw = (dx + MAX_SPLIT_TILE_SIZE <= x + w) ?
+                MAX_SPLIT_TILE_SIZE : (x + w - dx);
+
+            if (CheckSolidTile(cl, dx, dy, dw, dh, &colorValue, FALSE)) {
+
+                /* Get dimensions of solid-color area. */
+
+                FindBestSolidArea(cl, dx, dy, w - (dx - x), h - (dy - y),
+				  colorValue, &w_best, &h_best);
+
+                /* Make sure a solid rectangle is large enough
+                   (or the whole rectangle is of the same color). */
+
+                if ( w_best * h_best != w * h &&
+                     w_best * h_best < MIN_SOLID_SUBRECT_SIZE )
+                    continue;
+
+                /* Try to extend solid rectangle to maximum size. */
+
+                x_best = dx; y_best = dy;
+                ExtendSolidArea(cl, x, y, w, h, colorValue,
+                                &x_best, &y_best, &w_best, &h_best);
+
+                /* Send rectangles at top and left to solid-color area. */
+
+                if ( y_best != y &&
+                     !SendRectSimple(cl, x, y, w, y_best-y) )
+                    return FALSE;
+                if ( x_best != x &&
+                     !rfbSendRectEncodingTight(cl, x, y_best,
+                                               x_best-x, h_best) )
+                    return FALSE;
+
+                /* Send solid-color rectangle. */
+
+                if (!SendTightHeader(cl, x_best, y_best, w_best, h_best))
+                    return FALSE;
+
+                fbptr = (cl->screen->frameBuffer +
+                         (cl->screen->paddedWidthInBytes * y_best) +
+                         (x_best * (cl->screen->bitsPerPixel / 8)));
+
+                (*cl->translateFn)(cl->translateLookupTable, &cl->screen->rfbServerFormat,
+                                   &cl->format, fbptr, tightBeforeBuf,
+                                   cl->screen->paddedWidthInBytes, 1, 1);
+
+                if (!SendSolidRect(cl))
+                    return FALSE;
+
+                /* Send remaining rectangles (at right and bottom). */
+
+                if ( x_best + w_best != x + w &&
+                     !rfbSendRectEncodingTight(cl, x_best+w_best, y_best,
+                                               w-(x_best-x)-w_best, h_best) )
+                    return FALSE;
+                if ( y_best + h_best != y + h &&
+                     !rfbSendRectEncodingTight(cl, x, y_best+h_best,
+                                               w, h-(y_best-y)-h_best) )
+                    return FALSE;
+
+                /* Return after all recursive calls are done. */
+
+                return TRUE;
+            }
+
+        }
+
+    }
+
+    /* No suitable solid-color rectangles found. */
+
+    return SendRectSimple(cl, x, y, w, h);
+}
+
+static void
+FindBestSolidArea(cl, x, y, w, h, colorValue, w_ptr, h_ptr)
+    rfbClientPtr cl;
+    int x, y, w, h;
+    uint32_t colorValue;
+    int *w_ptr, *h_ptr;
+{
+    int dx, dy, dw, dh;
+    int w_prev;
+    int w_best = 0, h_best = 0;
+
+    w_prev = w;
+
+    for (dy = y; dy < y + h; dy += MAX_SPLIT_TILE_SIZE) {
+
+        dh = (dy + MAX_SPLIT_TILE_SIZE <= y + h) ?
+            MAX_SPLIT_TILE_SIZE : (y + h - dy);
+        dw = (w_prev > MAX_SPLIT_TILE_SIZE) ?
+            MAX_SPLIT_TILE_SIZE : w_prev;
+
+        if (!CheckSolidTile(cl, x, dy, dw, dh, &colorValue, TRUE))
+            break;
+
+        for (dx = x + dw; dx < x + w_prev;) {
+            dw = (dx + MAX_SPLIT_TILE_SIZE <= x + w_prev) ?
+                MAX_SPLIT_TILE_SIZE : (x + w_prev - dx);
+            if (!CheckSolidTile(cl, dx, dy, dw, dh, &colorValue, TRUE))
+                break;
+	    dx += dw;
+        }
+
+        w_prev = dx - x;
+        if (w_prev * (dy + dh - y) > w_best * h_best) {
+            w_best = w_prev;
+            h_best = dy + dh - y;
+        }
+    }
+
+    *w_ptr = w_best;
+    *h_ptr = h_best;
+}
+
+static void
+ExtendSolidArea(cl, x, y, w, h, colorValue, x_ptr, y_ptr, w_ptr, h_ptr)
+    rfbClientPtr cl;
+    int x, y, w, h;
+    uint32_t colorValue;
+    int *x_ptr, *y_ptr, *w_ptr, *h_ptr;
+{
+    int cx, cy;
+
+    /* Try to extend the area upwards. */
+    for ( cy = *y_ptr - 1;
+          cy >= y && CheckSolidTile(cl, *x_ptr, cy, *w_ptr, 1, &colorValue, TRUE);
+          cy-- );
+    *h_ptr += *y_ptr - (cy + 1);
+    *y_ptr = cy + 1;
+
+    /* ... downwards. */
+    for ( cy = *y_ptr + *h_ptr;
+          cy < y + h &&
+              CheckSolidTile(cl, *x_ptr, cy, *w_ptr, 1, &colorValue, TRUE);
+          cy++ );
+    *h_ptr += cy - (*y_ptr + *h_ptr);
+
+    /* ... to the left. */
+    for ( cx = *x_ptr - 1;
+          cx >= x && CheckSolidTile(cl, cx, *y_ptr, 1, *h_ptr, &colorValue, TRUE);
+          cx-- );
+    *w_ptr += *x_ptr - (cx + 1);
+    *x_ptr = cx + 1;
+
+    /* ... to the right. */
+    for ( cx = *x_ptr + *w_ptr;
+          cx < x + w &&
+              CheckSolidTile(cl, cx, *y_ptr, 1, *h_ptr, &colorValue, TRUE);
+          cx++ );
+    *w_ptr += cx - (*x_ptr + *w_ptr);
+}
+
+/*
+ * Check if a rectangle is all of the same color. If needSameColor is
+ * set to non-zero, then also check that its color equals to the
+ * *colorPtr value. The result is 1 if the test is successfull, and in
+ * that case new color will be stored in *colorPtr.
+ */
+
+static rfbBool CheckSolidTile(rfbClientPtr cl, int x, int y, int w, int h, uint32_t* colorPtr, rfbBool needSameColor)
+{
+    switch(cl->screen->rfbServerFormat.bitsPerPixel) {
+    case 32:
+        return CheckSolidTile32(cl, x, y, w, h, colorPtr, needSameColor);
+    case 16:
+        return CheckSolidTile16(cl, x, y, w, h, colorPtr, needSameColor);
+    default:
+        return CheckSolidTile8(cl, x, y, w, h, colorPtr, needSameColor);
+    }
+}
+
+#define DEFINE_CHECK_SOLID_FUNCTION(bpp)                                      \
+                                                                              \
+static rfbBool                                                                   \
+CheckSolidTile##bpp(rfbClientPtr cl, int x, int y, int w, int h, uint32_t* colorPtr, rfbBool needSameColor) \
+{                                                                             \
+    uint##bpp##_t *fbptr;                                                         \
+    uint##bpp##_t colorValue;                                                     \
+    int dx, dy;                                                               \
+                                                                              \
+    fbptr = (uint##bpp##_t *)                                                     \
+        &cl->screen->frameBuffer[y * cl->screen->paddedWidthInBytes + x * (bpp/8)]; \
+                                                                              \
+    colorValue = *fbptr;                                                      \
+    if (needSameColor && (uint32_t)colorValue != *colorPtr)                     \
+        return FALSE;                                                         \
+                                                                              \
+    for (dy = 0; dy < h; dy++) {                                              \
+        for (dx = 0; dx < w; dx++) {                                          \
+            if (colorValue != fbptr[dx])                                      \
+                return FALSE;                                                 \
+        }                                                                     \
+        fbptr = (uint##bpp##_t *)((uint8_t *)fbptr + cl->screen->paddedWidthInBytes); \
+    }                                                                         \
+                                                                              \
+    *colorPtr = (uint32_t)colorValue;                                           \
+    return TRUE;                                                              \
+}
+
+DEFINE_CHECK_SOLID_FUNCTION(8)
+DEFINE_CHECK_SOLID_FUNCTION(16)
+DEFINE_CHECK_SOLID_FUNCTION(32)
+
+static rfbBool
+SendRectSimple(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    int maxBeforeSize, maxAfterSize;
+    int maxRectSize, maxRectWidth;
+    int subrectMaxWidth, subrectMaxHeight;
+    int dx, dy;
+    int rw, rh;
+
+    maxRectSize = tightConf[compressLevel].maxRectSize;
+    maxRectWidth = tightConf[compressLevel].maxRectWidth;
+
+    maxBeforeSize = maxRectSize * (cl->format.bitsPerPixel / 8);
+    maxAfterSize = maxBeforeSize + (maxBeforeSize + 99) / 100 + 12;
+
+    if (tightBeforeBufSize < maxBeforeSize) {
+        tightBeforeBufSize = maxBeforeSize;
+        if (tightBeforeBuf == NULL)
+            tightBeforeBuf = (char *)malloc(tightBeforeBufSize);
+        else
+            tightBeforeBuf = (char *)realloc(tightBeforeBuf,
+                                              tightBeforeBufSize);
+    }
+
+    if (tightAfterBufSize < maxAfterSize) {
+        tightAfterBufSize = maxAfterSize;
+        if (tightAfterBuf == NULL)
+            tightAfterBuf = (char *)malloc(tightAfterBufSize);
+        else
+            tightAfterBuf = (char *)realloc(tightAfterBuf,
+                                             tightAfterBufSize);
+    }
+
+    if (w > maxRectWidth || w * h > maxRectSize) {
+        subrectMaxWidth = (w > maxRectWidth) ? maxRectWidth : w;
+        subrectMaxHeight = maxRectSize / subrectMaxWidth;
+
+        for (dy = 0; dy < h; dy += subrectMaxHeight) {
+            for (dx = 0; dx < w; dx += maxRectWidth) {
+                rw = (dx + maxRectWidth < w) ? maxRectWidth : w - dx;
+                rh = (dy + subrectMaxHeight < h) ? subrectMaxHeight : h - dy;
+                if (!SendSubrect(cl, x+dx, y+dy, rw, rh))
+                    return FALSE;
+            }
+        }
+    } else {
+        if (!SendSubrect(cl, x, y, w, h))
+            return FALSE;
+    }
+
+    return TRUE;
+}
+
+static rfbBool
+SendSubrect(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    char *fbptr;
+    rfbBool success = FALSE;
+
+    /* Send pending data if there is more than 128 bytes. */
+    if (cl->ublen > 128) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    if (!SendTightHeader(cl, x, y, w, h))
+        return FALSE;
+
+    fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y)
+             + (x * (cl->screen->bitsPerPixel / 8)));
+
+    (*cl->translateFn)(cl->translateLookupTable, &cl->screen->rfbServerFormat,
+                       &cl->format, fbptr, tightBeforeBuf,
+                       cl->screen->paddedWidthInBytes, w, h);
+
+    paletteMaxColors = w * h / tightConf[compressLevel].idxMaxColorsDivisor;
+    if ( paletteMaxColors < 2 &&
+         w * h >= tightConf[compressLevel].monoMinRectSize ) {
+        paletteMaxColors = 2;
+    }
+    switch (cl->format.bitsPerPixel) {
+    case 8:
+        FillPalette8(w * h);
+        break;
+    case 16:
+        FillPalette16(w * h);
+        break;
+    default:
+        FillPalette32(w * h);
+    }
+
+    switch (paletteNumColors) {
+    case 0:
+        /* Truecolor image */
+        if (DetectSmoothImage(cl, &cl->format, w, h)) {
+            if (qualityLevel != -1) {
+                success = SendJpegRect(cl, x, y, w, h,
+                                       tightConf[qualityLevel].jpegQuality);
+            } else {
+                success = SendGradientRect(cl, w, h);
+            }
+        } else {
+            success = SendFullColorRect(cl, w, h);
+        }
+        break;
+    case 1:
+        /* Solid rectangle */
+        success = SendSolidRect(cl);
+        break;
+    case 2:
+        /* Two-color rectangle */
+        success = SendMonoRect(cl, w, h);
+        break;
+    default:
+        /* Up to 256 different colors */
+        if ( paletteNumColors > 96 &&
+             qualityLevel != -1 && qualityLevel <= 3 &&
+             DetectSmoothImage(cl, &cl->format, w, h) ) {
+            success = SendJpegRect(cl, x, y, w, h,
+                                   tightConf[qualityLevel].jpegQuality);
+        } else {
+            success = SendIndexedRect(cl, w, h);
+        }
+    }
+    return success;
+}
+
+static rfbBool
+SendTightHeader(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    rfbFramebufferUpdateRectHeader rect;
+
+    if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    rect.r.x = Swap16IfLE(x);
+    rect.r.y = Swap16IfLE(y);
+    rect.r.w = Swap16IfLE(w);
+    rect.r.h = Swap16IfLE(h);
+    rect.encoding = Swap32IfLE(rfbEncodingTight);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+           sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    cl->rfbRectanglesSent[rfbEncodingTight]++;
+    cl->rfbBytesSent[rfbEncodingTight] += sz_rfbFramebufferUpdateRectHeader;
+
+    return TRUE;
+}
+
+/*
+ * Subencoding implementations.
+ */
+
+static rfbBool
+SendSolidRect(cl)
+    rfbClientPtr cl;
+{
+    int len;
+
+    if (usePixelFormat24) {
+        Pack24(cl, tightBeforeBuf, &cl->format, 1);
+        len = 3;
+    } else
+        len = cl->format.bitsPerPixel / 8;
+
+    if (cl->ublen + 1 + len > UPDATE_BUF_SIZE) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    cl->updateBuf[cl->ublen++] = (char)(rfbTightFill << 4);
+    memcpy (&cl->updateBuf[cl->ublen], tightBeforeBuf, len);
+    cl->ublen += len;
+
+    cl->rfbBytesSent[rfbEncodingTight] += len + 1;
+
+    return TRUE;
+}
+
+static rfbBool
+SendMonoRect(cl, w, h)
+    rfbClientPtr cl;
+    int w, h;
+{
+    int streamId = 1;
+    int paletteLen, dataLen;
+
+    if ( cl->ublen + TIGHT_MIN_TO_COMPRESS + 6 +
+	 2 * cl->format.bitsPerPixel / 8 > UPDATE_BUF_SIZE ) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    /* Prepare tight encoding header. */
+    dataLen = (w + 7) / 8;
+    dataLen *= h;
+
+    cl->updateBuf[cl->ublen++] = (streamId | rfbTightExplicitFilter) << 4;
+    cl->updateBuf[cl->ublen++] = rfbTightFilterPalette;
+    cl->updateBuf[cl->ublen++] = 1;
+
+    /* Prepare palette, convert image. */
+    switch (cl->format.bitsPerPixel) {
+
+    case 32:
+        EncodeMonoRect32((uint8_t *)tightBeforeBuf, w, h);
+
+        ((uint32_t *)tightAfterBuf)[0] = monoBackground;
+        ((uint32_t *)tightAfterBuf)[1] = monoForeground;
+        if (usePixelFormat24) {
+            Pack24(cl, tightAfterBuf, &cl->format, 2);
+            paletteLen = 6;
+        } else
+            paletteLen = 8;
+
+        memcpy(&cl->updateBuf[cl->ublen], tightAfterBuf, paletteLen);
+        cl->ublen += paletteLen;
+        cl->rfbBytesSent[rfbEncodingTight] += 3 + paletteLen;
+        break;
+
+    case 16:
+        EncodeMonoRect16((uint8_t *)tightBeforeBuf, w, h);
+
+        ((uint16_t *)tightAfterBuf)[0] = (uint16_t)monoBackground;
+        ((uint16_t *)tightAfterBuf)[1] = (uint16_t)monoForeground;
+
+        memcpy(&cl->updateBuf[cl->ublen], tightAfterBuf, 4);
+        cl->ublen += 4;
+        cl->rfbBytesSent[rfbEncodingTight] += 7;
+        break;
+
+    default:
+        EncodeMonoRect8((uint8_t *)tightBeforeBuf, w, h);
+
+        cl->updateBuf[cl->ublen++] = (char)monoBackground;
+        cl->updateBuf[cl->ublen++] = (char)monoForeground;
+        cl->rfbBytesSent[rfbEncodingTight] += 5;
+    }
+
+    return CompressData(cl, streamId, dataLen,
+                        tightConf[compressLevel].monoZlibLevel,
+                        Z_DEFAULT_STRATEGY);
+}
+
+static rfbBool
+SendIndexedRect(cl, w, h)
+    rfbClientPtr cl;
+    int w, h;
+{
+    int streamId = 2;
+    int i, entryLen;
+
+    if ( cl->ublen + TIGHT_MIN_TO_COMPRESS + 6 +
+	 paletteNumColors * cl->format.bitsPerPixel / 8 >
+         UPDATE_BUF_SIZE ) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    /* Prepare tight encoding header. */
+    cl->updateBuf[cl->ublen++] = (streamId | rfbTightExplicitFilter) << 4;
+    cl->updateBuf[cl->ublen++] = rfbTightFilterPalette;
+    cl->updateBuf[cl->ublen++] = (char)(paletteNumColors - 1);
+
+    /* Prepare palette, convert image. */
+    switch (cl->format.bitsPerPixel) {
+
+    case 32:
+        EncodeIndexedRect32((uint8_t *)tightBeforeBuf, w * h);
+
+        for (i = 0; i < paletteNumColors; i++) {
+            ((uint32_t *)tightAfterBuf)[i] =
+                palette.entry[i].listNode->rgb;
+        }
+        if (usePixelFormat24) {
+            Pack24(cl, tightAfterBuf, &cl->format, paletteNumColors);
+            entryLen = 3;
+        } else
+            entryLen = 4;
+
+        memcpy(&cl->updateBuf[cl->ublen], tightAfterBuf, paletteNumColors * entryLen);
+        cl->ublen += paletteNumColors * entryLen;
+        cl->rfbBytesSent[rfbEncodingTight] += 3 + paletteNumColors * entryLen;
+        break;
+
+    case 16:
+        EncodeIndexedRect16((uint8_t *)tightBeforeBuf, w * h);
+
+        for (i = 0; i < paletteNumColors; i++) {
+            ((uint16_t *)tightAfterBuf)[i] =
+                (uint16_t)palette.entry[i].listNode->rgb;
+        }
+
+        memcpy(&cl->updateBuf[cl->ublen], tightAfterBuf, paletteNumColors * 2);
+        cl->ublen += paletteNumColors * 2;
+        cl->rfbBytesSent[rfbEncodingTight] += 3 + paletteNumColors * 2;
+        break;
+
+    default:
+        return FALSE;           /* Should never happen. */
+    }
+
+    return CompressData(cl, streamId, w * h,
+                        tightConf[compressLevel].idxZlibLevel,
+                        Z_DEFAULT_STRATEGY);
+}
+
+static rfbBool
+SendFullColorRect(cl, w, h)
+    rfbClientPtr cl;
+    int w, h;
+{
+    int streamId = 0;
+    int len;
+
+    if (cl->ublen + TIGHT_MIN_TO_COMPRESS + 1 > UPDATE_BUF_SIZE) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    cl->updateBuf[cl->ublen++] = 0x00;  /* stream id = 0, no flushing, no filter */
+    cl->rfbBytesSent[rfbEncodingTight]++;
+
+    if (usePixelFormat24) {
+        Pack24(cl, tightBeforeBuf, &cl->format, w * h);
+        len = 3;
+    } else
+        len = cl->format.bitsPerPixel / 8;
+
+    return CompressData(cl, streamId, w * h * len,
+                        tightConf[compressLevel].rawZlibLevel,
+                        Z_DEFAULT_STRATEGY);
+}
+
+static rfbBool
+SendGradientRect(cl, w, h)
+    rfbClientPtr cl;
+    int w, h;
+{
+    int streamId = 3;
+    int len;
+
+    if (cl->format.bitsPerPixel == 8)
+        return SendFullColorRect(cl, w, h);
+
+    if (cl->ublen + TIGHT_MIN_TO_COMPRESS + 2 > UPDATE_BUF_SIZE) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    if (prevRowBuf == NULL)
+        prevRowBuf = (int *)malloc(2048 * 3 * sizeof(int));
+
+    cl->updateBuf[cl->ublen++] = (streamId | rfbTightExplicitFilter) << 4;
+    cl->updateBuf[cl->ublen++] = rfbTightFilterGradient;
+    cl->rfbBytesSent[rfbEncodingTight] += 2;
+
+    if (usePixelFormat24) {
+        FilterGradient24(cl, tightBeforeBuf, &cl->format, w, h);
+        len = 3;
+    } else if (cl->format.bitsPerPixel == 32) {
+        FilterGradient32(cl, (uint32_t *)tightBeforeBuf, &cl->format, w, h);
+        len = 4;
+    } else {
+        FilterGradient16(cl, (uint16_t *)tightBeforeBuf, &cl->format, w, h);
+        len = 2;
+    }
+
+    return CompressData(cl, streamId, w * h * len,
+                        tightConf[compressLevel].gradientZlibLevel,
+                        Z_FILTERED);
+}
+
+static rfbBool
+CompressData(cl, streamId, dataLen, zlibLevel, zlibStrategy)
+    rfbClientPtr cl;
+    int streamId, dataLen, zlibLevel, zlibStrategy;
+{
+    z_streamp pz;
+    int err;
+
+    if (dataLen < TIGHT_MIN_TO_COMPRESS) {
+        memcpy(&cl->updateBuf[cl->ublen], tightBeforeBuf, dataLen);
+        cl->ublen += dataLen;
+        cl->rfbBytesSent[rfbEncodingTight] += dataLen;
+        return TRUE;
+    }
+
+    pz = &cl->zsStruct[streamId];
+
+    /* Initialize compression stream if needed. */
+    if (!cl->zsActive[streamId]) {
+        pz->zalloc = Z_NULL;
+        pz->zfree = Z_NULL;
+        pz->opaque = Z_NULL;
+
+        err = deflateInit2 (pz, zlibLevel, Z_DEFLATED, MAX_WBITS,
+                            MAX_MEM_LEVEL, zlibStrategy);
+        if (err != Z_OK)
+            return FALSE;
+
+        cl->zsActive[streamId] = TRUE;
+        cl->zsLevel[streamId] = zlibLevel;
+    }
+
+    /* Prepare buffer pointers. */
+    pz->next_in = (Bytef *)tightBeforeBuf;
+    pz->avail_in = dataLen;
+    pz->next_out = (Bytef *)tightAfterBuf;
+    pz->avail_out = tightAfterBufSize;
+
+    /* Change compression parameters if needed. */
+    if (zlibLevel != cl->zsLevel[streamId]) {
+        if (deflateParams (pz, zlibLevel, zlibStrategy) != Z_OK) {
+            return FALSE;
+        }
+        cl->zsLevel[streamId] = zlibLevel;
+    }
+
+    /* Actual compression. */
+    if ( deflate (pz, Z_SYNC_FLUSH) != Z_OK ||
+         pz->avail_in != 0 || pz->avail_out == 0 ) {
+        return FALSE;
+    }
+
+    return SendCompressedData(cl, tightAfterBufSize - pz->avail_out);
+}
+
+static rfbBool SendCompressedData(cl, compressedLen)
+    rfbClientPtr cl;
+    int compressedLen;
+{
+    int i, portionLen;
+
+    cl->updateBuf[cl->ublen++] = compressedLen & 0x7F;
+    cl->rfbBytesSent[rfbEncodingTight]++;
+    if (compressedLen > 0x7F) {
+        cl->updateBuf[cl->ublen-1] |= 0x80;
+        cl->updateBuf[cl->ublen++] = compressedLen >> 7 & 0x7F;
+        cl->rfbBytesSent[rfbEncodingTight]++;
+        if (compressedLen > 0x3FFF) {
+            cl->updateBuf[cl->ublen-1] |= 0x80;
+            cl->updateBuf[cl->ublen++] = compressedLen >> 14 & 0xFF;
+            cl->rfbBytesSent[rfbEncodingTight]++;
+        }
+    }
+
+    portionLen = UPDATE_BUF_SIZE;
+    for (i = 0; i < compressedLen; i += portionLen) {
+        if (i + portionLen > compressedLen) {
+            portionLen = compressedLen - i;
+        }
+        if (cl->ublen + portionLen > UPDATE_BUF_SIZE) {
+            if (!rfbSendUpdateBuf(cl))
+                return FALSE;
+        }
+        memcpy(&cl->updateBuf[cl->ublen], &tightAfterBuf[i], portionLen);
+        cl->ublen += portionLen;
+    }
+    cl->rfbBytesSent[rfbEncodingTight] += compressedLen;
+
+    return TRUE;
+}
+
+/*
+ * Code to determine how many different colors used in rectangle.
+ */
+
+static void
+FillPalette8(count)
+    int count;
+{
+    uint8_t *data = (uint8_t *)tightBeforeBuf;
+    uint8_t c0, c1;
+    int i, n0, n1;
+
+    paletteNumColors = 0;
+
+    c0 = data[0];
+    for (i = 1; i < count && data[i] == c0; i++);
+    if (i == count) {
+        paletteNumColors = 1;
+        return;                 /* Solid rectangle */
+    }
+
+    if (paletteMaxColors < 2)
+        return;
+
+    n0 = i;
+    c1 = data[i];
+    n1 = 0;
+    for (i++; i < count; i++) {
+        if (data[i] == c0) {
+            n0++;
+        } else if (data[i] == c1) {
+            n1++;
+        } else
+            break;
+    }
+    if (i == count) {
+        if (n0 > n1) {
+            monoBackground = (uint32_t)c0;
+            monoForeground = (uint32_t)c1;
+        } else {
+            monoBackground = (uint32_t)c1;
+            monoForeground = (uint32_t)c0;
+        }
+        paletteNumColors = 2;   /* Two colors */
+    }
+}
+
+#define DEFINE_FILL_PALETTE_FUNCTION(bpp)                               \
+                                                                        \
+static void                                                             \
+FillPalette##bpp(count)                                                 \
+    int count;                                                          \
+{                                                                       \
+    uint##bpp##_t *data = (uint##bpp##_t *)tightBeforeBuf;                      \
+    uint##bpp##_t c0, c1, ci;                                               \
+    int i, n0, n1, ni;                                                  \
+                                                                        \
+    c0 = data[0];                                                       \
+    for (i = 1; i < count && data[i] == c0; i++);                       \
+    if (i >= count) {                                                   \
+        paletteNumColors = 1;   /* Solid rectangle */                   \
+        return;                                                         \
+    }                                                                   \
+                                                                        \
+    if (paletteMaxColors < 2) {                                         \
+        paletteNumColors = 0;   /* Full-color encoding preferred */     \
+        return;                                                         \
+    }                                                                   \
+                                                                        \
+    n0 = i;                                                             \
+    c1 = data[i];                                                       \
+    n1 = 0;                                                             \
+    for (i++; i < count; i++) {                                         \
+        ci = data[i];                                                   \
+        if (ci == c0) {                                                 \
+            n0++;                                                       \
+        } else if (ci == c1) {                                          \
+            n1++;                                                       \
+        } else                                                          \
+            break;                                                      \
+    }                                                                   \
+    if (i >= count) {                                                   \
+        if (n0 > n1) {                                                  \
+            monoBackground = (uint32_t)c0;                                \
+            monoForeground = (uint32_t)c1;                                \
+        } else {                                                        \
+            monoBackground = (uint32_t)c1;                                \
+            monoForeground = (uint32_t)c0;                                \
+        }                                                               \
+        paletteNumColors = 2;   /* Two colors */                        \
+        return;                                                         \
+    }                                                                   \
+                                                                        \
+    PaletteReset();                                                     \
+    PaletteInsert (c0, (uint32_t)n0, bpp);                                \
+    PaletteInsert (c1, (uint32_t)n1, bpp);                                \
+                                                                        \
+    ni = 1;                                                             \
+    for (i++; i < count; i++) {                                         \
+        if (data[i] == ci) {                                            \
+            ni++;                                                       \
+        } else {                                                        \
+            if (!PaletteInsert (ci, (uint32_t)ni, bpp))                   \
+                return;                                                 \
+            ci = data[i];                                               \
+            ni = 1;                                                     \
+        }                                                               \
+    }                                                                   \
+    PaletteInsert (ci, (uint32_t)ni, bpp);                                \
+}
+
+DEFINE_FILL_PALETTE_FUNCTION(16)
+DEFINE_FILL_PALETTE_FUNCTION(32)
+
+
+/*
+ * Functions to operate with palette structures.
+ */
+
+#define HASH_FUNC16(rgb) ((int)(((rgb >> 8) + rgb) & 0xFF))
+#define HASH_FUNC32(rgb) ((int)(((rgb >> 16) + (rgb >> 8)) & 0xFF))
+
+static void
+PaletteReset(void)
+{
+    paletteNumColors = 0;
+    memset(palette.hash, 0, 256 * sizeof(COLOR_LIST *));
+}
+
+static int
+PaletteInsert(rgb, numPixels, bpp)
+    uint32_t rgb;
+    int numPixels;
+    int bpp;
+{
+    COLOR_LIST *pnode;
+    COLOR_LIST *prev_pnode = NULL;
+    int hash_key, idx, new_idx, count;
+
+    hash_key = (bpp == 16) ? HASH_FUNC16(rgb) : HASH_FUNC32(rgb);
+
+    pnode = palette.hash[hash_key];
+
+    while (pnode != NULL) {
+        if (pnode->rgb == rgb) {
+            /* Such palette entry already exists. */
+            new_idx = idx = pnode->idx;
+            count = palette.entry[idx].numPixels + numPixels;
+            if (new_idx && palette.entry[new_idx-1].numPixels < count) {
+                do {
+                    palette.entry[new_idx] = palette.entry[new_idx-1];
+                    palette.entry[new_idx].listNode->idx = new_idx;
+                    new_idx--;
+                }
+                while (new_idx && palette.entry[new_idx-1].numPixels < count);
+                palette.entry[new_idx].listNode = pnode;
+                pnode->idx = new_idx;
+            }
+            palette.entry[new_idx].numPixels = count;
+            return paletteNumColors;
+        }
+        prev_pnode = pnode;
+        pnode = pnode->next;
+    }
+
+    /* Check if palette is full. */
+    if (paletteNumColors == 256 || paletteNumColors == paletteMaxColors) {
+        paletteNumColors = 0;
+        return 0;
+    }
+
+    /* Move palette entries with lesser pixel counts. */
+    for ( idx = paletteNumColors;
+          idx > 0 && palette.entry[idx-1].numPixels < numPixels;
+          idx-- ) {
+        palette.entry[idx] = palette.entry[idx-1];
+        palette.entry[idx].listNode->idx = idx;
+    }
+
+    /* Add new palette entry into the freed slot. */
+    pnode = &palette.list[paletteNumColors];
+    if (prev_pnode != NULL) {
+        prev_pnode->next = pnode;
+    } else {
+        palette.hash[hash_key] = pnode;
+    }
+    pnode->next = NULL;
+    pnode->idx = idx;
+    pnode->rgb = rgb;
+    palette.entry[idx].listNode = pnode;
+    palette.entry[idx].numPixels = numPixels;
+
+    return (++paletteNumColors);
+}
+
+
+/*
+ * Converting 32-bit color samples into 24-bit colors.
+ * Should be called only when redMax, greenMax and blueMax are 255.
+ * Color components assumed to be byte-aligned.
+ */
+
+static void Pack24(cl, buf, fmt, count)
+    rfbClientPtr cl;
+    char *buf;
+    rfbPixelFormat *fmt;
+    int count;
+{
+    uint32_t *buf32;
+    uint32_t pix;
+    int r_shift, g_shift, b_shift;
+
+    buf32 = (uint32_t *)buf;
+
+    if (!cl->screen->rfbServerFormat.bigEndian == !fmt->bigEndian) {
+        r_shift = fmt->redShift;
+        g_shift = fmt->greenShift;
+        b_shift = fmt->blueShift;
+    } else {
+        r_shift = 24 - fmt->redShift;
+        g_shift = 24 - fmt->greenShift;
+        b_shift = 24 - fmt->blueShift;
+    }
+
+    while (count--) {
+        pix = *buf32++;
+        *buf++ = (char)(pix >> r_shift);
+        *buf++ = (char)(pix >> g_shift);
+        *buf++ = (char)(pix >> b_shift);
+    }
+}
+
+
+/*
+ * Converting truecolor samples into palette indices.
+ */
+
+#define DEFINE_IDX_ENCODE_FUNCTION(bpp)                                 \
+                                                                        \
+static void                                                             \
+EncodeIndexedRect##bpp(buf, count)                                      \
+    uint8_t *buf;                                                         \
+    int count;                                                          \
+{                                                                       \
+    COLOR_LIST *pnode;                                                  \
+    uint##bpp##_t *src;                                                     \
+    uint##bpp##_t rgb;                                                      \
+    int rep = 0;                                                        \
+                                                                        \
+    src = (uint##bpp##_t *) buf;                                            \
+                                                                        \
+    while (count--) {                                                   \
+        rgb = *src++;                                                   \
+        while (count && *src == rgb) {                                  \
+            rep++, src++, count--;                                      \
+        }                                                               \
+        pnode = palette.hash[HASH_FUNC##bpp(rgb)];                      \
+        while (pnode != NULL) {                                         \
+            if ((uint##bpp##_t)pnode->rgb == rgb) {                         \
+                *buf++ = (uint8_t)pnode->idx;                             \
+                while (rep) {                                           \
+                    *buf++ = (uint8_t)pnode->idx;                         \
+                    rep--;                                              \
+                }                                                       \
+                break;                                                  \
+            }                                                           \
+            pnode = pnode->next;                                        \
+        }                                                               \
+    }                                                                   \
+}
+
+DEFINE_IDX_ENCODE_FUNCTION(16)
+DEFINE_IDX_ENCODE_FUNCTION(32)
+
+#define DEFINE_MONO_ENCODE_FUNCTION(bpp)                                \
+                                                                        \
+static void                                                             \
+EncodeMonoRect##bpp(buf, w, h)                                          \
+    uint8_t *buf;                                                         \
+    int w, h;                                                           \
+{                                                                       \
+    uint##bpp##_t *ptr;                                                     \
+    uint##bpp##_t bg;                                                       \
+    unsigned int value, mask;                                           \
+    int aligned_width;                                                  \
+    int x, y, bg_bits;                                                  \
+                                                                        \
+    ptr = (uint##bpp##_t *) buf;                                            \
+    bg = (uint##bpp##_t) monoBackground;                                    \
+    aligned_width = w - w % 8;                                          \
+                                                                        \
+    for (y = 0; y < h; y++) {                                           \
+        for (x = 0; x < aligned_width; x += 8) {                        \
+            for (bg_bits = 0; bg_bits < 8; bg_bits++) {                 \
+                if (*ptr++ != bg)                                       \
+                    break;                                              \
+            }                                                           \
+            if (bg_bits == 8) {                                         \
+                *buf++ = 0;                                             \
+                continue;                                               \
+            }                                                           \
+            mask = 0x80 >> bg_bits;                                     \
+            value = mask;                                               \
+            for (bg_bits++; bg_bits < 8; bg_bits++) {                   \
+                mask >>= 1;                                             \
+                if (*ptr++ != bg) {                                     \
+                    value |= mask;                                      \
+                }                                                       \
+            }                                                           \
+            *buf++ = (uint8_t)value;                                      \
+        }                                                               \
+                                                                        \
+        mask = 0x80;                                                    \
+        value = 0;                                                      \
+        if (x >= w)                                                     \
+            continue;                                                   \
+                                                                        \
+        for (; x < w; x++) {                                            \
+            if (*ptr++ != bg) {                                         \
+                value |= mask;                                          \
+            }                                                           \
+            mask >>= 1;                                                 \
+        }                                                               \
+        *buf++ = (uint8_t)value;                                          \
+    }                                                                   \
+}
+
+DEFINE_MONO_ENCODE_FUNCTION(8)
+DEFINE_MONO_ENCODE_FUNCTION(16)
+DEFINE_MONO_ENCODE_FUNCTION(32)
+
+
+/*
+ * ``Gradient'' filter for 24-bit color samples.
+ * Should be called only when redMax, greenMax and blueMax are 255.
+ * Color components assumed to be byte-aligned.
+ */
+
+static void
+FilterGradient24(cl, buf, fmt, w, h)
+    rfbClientPtr cl;
+    char *buf;
+    rfbPixelFormat *fmt;
+    int w, h;
+{
+    uint32_t *buf32;
+    uint32_t pix32;
+    int *prevRowPtr;
+    int shiftBits[3];
+    int pixHere[3], pixUpper[3], pixLeft[3], pixUpperLeft[3];
+    int prediction;
+    int x, y, c;
+
+    buf32 = (uint32_t *)buf;
+    memset (prevRowBuf, 0, w * 3 * sizeof(int));
+
+    if (!cl->screen->rfbServerFormat.bigEndian == !fmt->bigEndian) {
+        shiftBits[0] = fmt->redShift;
+        shiftBits[1] = fmt->greenShift;
+        shiftBits[2] = fmt->blueShift;
+    } else {
+        shiftBits[0] = 24 - fmt->redShift;
+        shiftBits[1] = 24 - fmt->greenShift;
+        shiftBits[2] = 24 - fmt->blueShift;
+    }
+
+    for (y = 0; y < h; y++) {
+        for (c = 0; c < 3; c++) {
+            pixUpper[c] = 0;
+            pixHere[c] = 0;
+        }
+        prevRowPtr = prevRowBuf;
+        for (x = 0; x < w; x++) {
+            pix32 = *buf32++;
+            for (c = 0; c < 3; c++) {
+                pixUpperLeft[c] = pixUpper[c];
+                pixLeft[c] = pixHere[c];
+                pixUpper[c] = *prevRowPtr;
+                pixHere[c] = (int)(pix32 >> shiftBits[c] & 0xFF);
+                *prevRowPtr++ = pixHere[c];
+
+                prediction = pixLeft[c] + pixUpper[c] - pixUpperLeft[c];
+                if (prediction < 0) {
+                    prediction = 0;
+                } else if (prediction > 0xFF) {
+                    prediction = 0xFF;
+                }
+                *buf++ = (char)(pixHere[c] - prediction);
+            }
+        }
+    }
+}
+
+
+/*
+ * ``Gradient'' filter for other color depths.
+ */
+
+#define DEFINE_GRADIENT_FILTER_FUNCTION(bpp)                             \
+                                                                         \
+static void                                                              \
+FilterGradient##bpp(cl, buf, fmt, w, h)                                      \
+    rfbClientPtr cl; \
+    uint##bpp##_t *buf;                                                      \
+    rfbPixelFormat *fmt;                                                 \
+    int w, h;                                                            \
+{                                                                        \
+    uint##bpp##_t pix, diff;                                                 \
+    rfbBool endianMismatch;                                                 \
+    int *prevRowPtr;                                                     \
+    int maxColor[3], shiftBits[3];                                       \
+    int pixHere[3], pixUpper[3], pixLeft[3], pixUpperLeft[3];            \
+    int prediction;                                                      \
+    int x, y, c;                                                         \
+                                                                         \
+    memset (prevRowBuf, 0, w * 3 * sizeof(int));                         \
+                                                                         \
+    endianMismatch = (!cl->screen->rfbServerFormat.bigEndian != !fmt->bigEndian);    \
+                                                                         \
+    maxColor[0] = fmt->redMax;                                           \
+    maxColor[1] = fmt->greenMax;                                         \
+    maxColor[2] = fmt->blueMax;                                          \
+    shiftBits[0] = fmt->redShift;                                        \
+    shiftBits[1] = fmt->greenShift;                                      \
+    shiftBits[2] = fmt->blueShift;                                       \
+                                                                         \
+    for (y = 0; y < h; y++) {                                            \
+        for (c = 0; c < 3; c++) {                                        \
+            pixUpper[c] = 0;                                             \
+            pixHere[c] = 0;                                              \
+        }                                                                \
+        prevRowPtr = prevRowBuf;                                         \
+        for (x = 0; x < w; x++) {                                        \
+            pix = *buf;                                                  \
+            if (endianMismatch) {                                        \
+                pix = Swap##bpp(pix);                                    \
+            }                                                            \
+            diff = 0;                                                    \
+            for (c = 0; c < 3; c++) {                                    \
+                pixUpperLeft[c] = pixUpper[c];                           \
+                pixLeft[c] = pixHere[c];                                 \
+                pixUpper[c] = *prevRowPtr;                               \
+                pixHere[c] = (int)(pix >> shiftBits[c] & maxColor[c]);   \
+                *prevRowPtr++ = pixHere[c];                              \
+                                                                         \
+                prediction = pixLeft[c] + pixUpper[c] - pixUpperLeft[c]; \
+                if (prediction < 0) {                                    \
+                    prediction = 0;                                      \
+                } else if (prediction > maxColor[c]) {                   \
+                    prediction = maxColor[c];                            \
+                }                                                        \
+                diff |= ((pixHere[c] - prediction) & maxColor[c])        \
+                    << shiftBits[c];                                     \
+            }                                                            \
+            if (endianMismatch) {                                        \
+                diff = Swap##bpp(diff);                                  \
+            }                                                            \
+            *buf++ = diff;                                               \
+        }                                                                \
+    }                                                                    \
+}
+
+DEFINE_GRADIENT_FILTER_FUNCTION(16)
+DEFINE_GRADIENT_FILTER_FUNCTION(32)
+
+
+/*
+ * Code to guess if given rectangle is suitable for smooth image
+ * compression (by applying "gradient" filter or JPEG coder).
+ */
+
+#define JPEG_MIN_RECT_SIZE  4096
+
+#define DETECT_SUBROW_WIDTH    7
+#define DETECT_MIN_WIDTH       8
+#define DETECT_MIN_HEIGHT      8
+
+static int
+DetectSmoothImage (cl, fmt, w, h)
+    rfbClientPtr cl;
+    rfbPixelFormat *fmt;
+    int w, h;
+{
+    long avgError;
+
+    if ( cl->screen->rfbServerFormat.bitsPerPixel == 8 || fmt->bitsPerPixel == 8 ||
+         w < DETECT_MIN_WIDTH || h < DETECT_MIN_HEIGHT ) {
+        return 0;
+    }
+
+    if (qualityLevel != -1) {
+        if (w * h < JPEG_MIN_RECT_SIZE) {
+            return 0;
+        }
+    } else {
+        if ( rfbTightDisableGradient ||
+             w * h < tightConf[compressLevel].gradientMinRectSize ) {
+            return 0;
+        }
+    }
+
+    if (fmt->bitsPerPixel == 32) {
+        if (usePixelFormat24) {
+            avgError = DetectSmoothImage24(cl, fmt, w, h);
+            if (qualityLevel != -1) {
+                return (avgError < tightConf[qualityLevel].jpegThreshold24);
+            }
+            return (avgError < tightConf[compressLevel].gradientThreshold24);
+        } else {
+            avgError = DetectSmoothImage32(cl, fmt, w, h);
+        }
+    } else {
+        avgError = DetectSmoothImage16(cl, fmt, w, h);
+    }
+    if (qualityLevel != -1) {
+        return (avgError < tightConf[qualityLevel].jpegThreshold);
+    }
+    return (avgError < tightConf[compressLevel].gradientThreshold);
+}
+
+static unsigned long
+DetectSmoothImage24 (cl, fmt, w, h)
+    rfbClientPtr cl;
+    rfbPixelFormat *fmt;
+    int w, h;
+{
+    int off;
+    int x, y, d, dx, c;
+    int diffStat[256];
+    int pixelCount = 0;
+    int pix, left[3];
+    unsigned long avgError;
+
+    /* If client is big-endian, color samples begin from the second
+       byte (offset 1) of a 32-bit pixel value. */
+    off = (fmt->bigEndian != 0);
+
+    memset(diffStat, 0, 256*sizeof(int));
+
+    y = 0, x = 0;
+    while (y < h && x < w) {
+        for (d = 0; d < h - y && d < w - x - DETECT_SUBROW_WIDTH; d++) {
+            for (c = 0; c < 3; c++) {
+                left[c] = (int)tightBeforeBuf[((y+d)*w+x+d)*4+off+c] & 0xFF;
+            }
+            for (dx = 1; dx <= DETECT_SUBROW_WIDTH; dx++) {
+                for (c = 0; c < 3; c++) {
+                    pix = (int)tightBeforeBuf[((y+d)*w+x+d+dx)*4+off+c] & 0xFF;
+                    diffStat[abs(pix - left[c])]++;
+                    left[c] = pix;
+                }
+                pixelCount++;
+            }
+        }
+        if (w > h) {
+            x += h;
+            y = 0;
+        } else {
+            x = 0;
+            y += w;
+        }
+    }
+
+    if (diffStat[0] * 33 / pixelCount >= 95)
+        return 0;
+
+    avgError = 0;
+    for (c = 1; c < 8; c++) {
+        avgError += (unsigned long)diffStat[c] * (unsigned long)(c * c);
+        if (diffStat[c] == 0 || diffStat[c] > diffStat[c-1] * 2)
+            return 0;
+    }
+    for (; c < 256; c++) {
+        avgError += (unsigned long)diffStat[c] * (unsigned long)(c * c);
+    }
+    avgError /= (pixelCount * 3 - diffStat[0]);
+
+    return avgError;
+}
+
+#define DEFINE_DETECT_FUNCTION(bpp)                                          \
+                                                                             \
+static unsigned long                                                         \
+DetectSmoothImage##bpp (cl, fmt, w, h)                                           \
+    rfbClientPtr cl; \
+    rfbPixelFormat *fmt;                                                     \
+    int w, h;                                                                \
+{                                                                            \
+    rfbBool endianMismatch;                                                     \
+    uint##bpp##_t pix;                                                           \
+    int maxColor[3], shiftBits[3];                                           \
+    int x, y, d, dx, c;                                                      \
+    int diffStat[256];                                                       \
+    int pixelCount = 0;                                                      \
+    int sample, sum, left[3];                                                \
+    unsigned long avgError;                                                  \
+                                                                             \
+    endianMismatch = (!cl->screen->rfbServerFormat.bigEndian != !fmt->bigEndian);        \
+                                                                             \
+    maxColor[0] = fmt->redMax;                                               \
+    maxColor[1] = fmt->greenMax;                                             \
+    maxColor[2] = fmt->blueMax;                                              \
+    shiftBits[0] = fmt->redShift;                                            \
+    shiftBits[1] = fmt->greenShift;                                          \
+    shiftBits[2] = fmt->blueShift;                                           \
+                                                                             \
+    memset(diffStat, 0, 256*sizeof(int));                                    \
+                                                                             \
+    y = 0, x = 0;                                                            \
+    while (y < h && x < w) {                                                 \
+        for (d = 0; d < h - y && d < w - x - DETECT_SUBROW_WIDTH; d++) {     \
+            pix = ((uint##bpp##_t *)tightBeforeBuf)[(y+d)*w+x+d];                \
+            if (endianMismatch) {                                            \
+                pix = Swap##bpp(pix);                                        \
+            }                                                                \
+            for (c = 0; c < 3; c++) {                                        \
+                left[c] = (int)(pix >> shiftBits[c] & maxColor[c]);          \
+            }                                                                \
+            for (dx = 1; dx <= DETECT_SUBROW_WIDTH; dx++) {                  \
+                pix = ((uint##bpp##_t *)tightBeforeBuf)[(y+d)*w+x+d+dx];         \
+                if (endianMismatch) {                                        \
+                    pix = Swap##bpp(pix);                                    \
+                }                                                            \
+                sum = 0;                                                     \
+                for (c = 0; c < 3; c++) {                                    \
+                    sample = (int)(pix >> shiftBits[c] & maxColor[c]);       \
+                    sum += abs(sample - left[c]);                            \
+                    left[c] = sample;                                        \
+                }                                                            \
+                if (sum > 255)                                               \
+                    sum = 255;                                               \
+                diffStat[sum]++;                                             \
+                pixelCount++;                                                \
+            }                                                                \
+        }                                                                    \
+        if (w > h) {                                                         \
+            x += h;                                                          \
+            y = 0;                                                           \
+        } else {                                                             \
+            x = 0;                                                           \
+            y += w;                                                          \
+        }                                                                    \
+    }                                                                        \
+                                                                             \
+    if ((diffStat[0] + diffStat[1]) * 100 / pixelCount >= 90)                \
+        return 0;                                                            \
+                                                                             \
+    avgError = 0;                                                            \
+    for (c = 1; c < 8; c++) {                                                \
+        avgError += (unsigned long)diffStat[c] * (unsigned long)(c * c);     \
+        if (diffStat[c] == 0 || diffStat[c] > diffStat[c-1] * 2)             \
+            return 0;                                                        \
+    }                                                                        \
+    for (; c < 256; c++) {                                                   \
+        avgError += (unsigned long)diffStat[c] * (unsigned long)(c * c);     \
+    }                                                                        \
+    avgError /= (pixelCount - diffStat[0]);                                  \
+                                                                             \
+    return avgError;                                                         \
+}
+
+DEFINE_DETECT_FUNCTION(16)
+DEFINE_DETECT_FUNCTION(32)
+
+
+/*
+ * JPEG compression stuff.
+ */
+
+static struct jpeg_destination_mgr jpegDstManager;
+static rfbBool jpegError;
+static int jpegDstDataLen;
+
+static rfbBool
+SendJpegRect(cl, x, y, w, h, quality)
+    rfbClientPtr cl;
+    int x, y, w, h;
+    int quality;
+{
+    struct jpeg_compress_struct cinfo;
+    struct jpeg_error_mgr jerr;
+    uint8_t *srcBuf;
+    JSAMPROW rowPointer[1];
+    int dy;
+
+    if (cl->screen->rfbServerFormat.bitsPerPixel == 8)
+        return SendFullColorRect(cl, w, h);
+
+    srcBuf = (uint8_t *)malloc(w * 3);
+    if (srcBuf == NULL) {
+        return SendFullColorRect(cl, w, h);
+    }
+    rowPointer[0] = srcBuf;
+
+    cinfo.err = jpeg_std_error(&jerr);
+    jpeg_create_compress(&cinfo);
+
+    cinfo.image_width = w;
+    cinfo.image_height = h;
+    cinfo.input_components = 3;
+    cinfo.in_color_space = JCS_RGB;
+
+    jpeg_set_defaults(&cinfo);
+    jpeg_set_quality(&cinfo, quality, TRUE);
+
+    JpegSetDstManager (&cinfo);
+
+    jpeg_start_compress(&cinfo, TRUE);
+
+    for (dy = 0; dy < h; dy++) {
+        PrepareRowForJpeg(cl, srcBuf, x, y + dy, w);
+        jpeg_write_scanlines(&cinfo, rowPointer, 1);
+        if (jpegError)
+            break;
+    }
+
+    if (!jpegError)
+        jpeg_finish_compress(&cinfo);
+
+    jpeg_destroy_compress(&cinfo);
+    free(srcBuf);
+
+    if (jpegError)
+        return SendFullColorRect(cl, w, h);
+
+    if (cl->ublen + TIGHT_MIN_TO_COMPRESS + 1 > UPDATE_BUF_SIZE) {
+        if (!rfbSendUpdateBuf(cl))
+            return FALSE;
+    }
+
+    cl->updateBuf[cl->ublen++] = (char)(rfbTightJpeg << 4);
+    cl->rfbBytesSent[rfbEncodingTight]++;
+
+    return SendCompressedData(cl, jpegDstDataLen);
+}
+
+static void
+PrepareRowForJpeg(cl, dst, x, y, count)
+    rfbClientPtr cl;
+    uint8_t *dst;
+    int x, y, count;
+{
+    if (cl->screen->rfbServerFormat.bitsPerPixel == 32) {
+        if ( cl->screen->rfbServerFormat.redMax == 0xFF &&
+             cl->screen->rfbServerFormat.greenMax == 0xFF &&
+             cl->screen->rfbServerFormat.blueMax == 0xFF ) {
+            PrepareRowForJpeg24(cl, dst, x, y, count);
+        } else {
+            PrepareRowForJpeg32(cl, dst, x, y, count);
+        }
+    } else {
+        /* 16 bpp assumed. */
+        PrepareRowForJpeg16(cl, dst, x, y, count);
+    }
+}
+
+static void
+PrepareRowForJpeg24(cl, dst, x, y, count)
+    rfbClientPtr cl;
+    uint8_t *dst;
+    int x, y, count;
+{
+    uint32_t *fbptr;
+    uint32_t pix;
+
+    fbptr = (uint32_t *)
+        &cl->screen->frameBuffer[y * cl->screen->paddedWidthInBytes + x * 4];
+
+    while (count--) {
+        pix = *fbptr++;
+        *dst++ = (uint8_t)(pix >> cl->screen->rfbServerFormat.redShift);
+        *dst++ = (uint8_t)(pix >> cl->screen->rfbServerFormat.greenShift);
+        *dst++ = (uint8_t)(pix >> cl->screen->rfbServerFormat.blueShift);
+    }
+}
+
+#define DEFINE_JPEG_GET_ROW_FUNCTION(bpp)                                   \
+                                                                            \
+static void                                                                 \
+PrepareRowForJpeg##bpp(cl, dst, x, y, count)                                    \
+    rfbClientPtr cl; \
+    uint8_t *dst;                                                             \
+    int x, y, count;                                                        \
+{                                                                           \
+    uint##bpp##_t *fbptr;                                                       \
+    uint##bpp##_t pix;                                                          \
+    int inRed, inGreen, inBlue;                                             \
+                                                                            \
+    fbptr = (uint##bpp##_t *)                                                   \
+        &cl->screen->frameBuffer[y * cl->screen->paddedWidthInBytes +             \
+                             x * (bpp / 8)];                                \
+                                                                            \
+    while (count--) {                                                       \
+        pix = *fbptr++;                                                     \
+                                                                            \
+        inRed = (int)                                                       \
+            (pix >> cl->screen->rfbServerFormat.redShift   & cl->screen->rfbServerFormat.redMax);   \
+        inGreen = (int)                                                     \
+            (pix >> cl->screen->rfbServerFormat.greenShift & cl->screen->rfbServerFormat.greenMax); \
+        inBlue  = (int)                                                     \
+            (pix >> cl->screen->rfbServerFormat.blueShift  & cl->screen->rfbServerFormat.blueMax);  \
+                                                                            \
+	*dst++ = (uint8_t)((inRed   * 255 + cl->screen->rfbServerFormat.redMax / 2) /     \
+                         cl->screen->rfbServerFormat.redMax);                           \
+	*dst++ = (uint8_t)((inGreen * 255 + cl->screen->rfbServerFormat.greenMax / 2) /   \
+                         cl->screen->rfbServerFormat.greenMax);                         \
+	*dst++ = (uint8_t)((inBlue  * 255 + cl->screen->rfbServerFormat.blueMax / 2) /    \
+                         cl->screen->rfbServerFormat.blueMax);                          \
+    }                                                                       \
+}
+
+DEFINE_JPEG_GET_ROW_FUNCTION(16)
+DEFINE_JPEG_GET_ROW_FUNCTION(32)
+
+/*
+ * Destination manager implementation for JPEG library.
+ */
+
+static void
+JpegInitDestination(j_compress_ptr cinfo)
+{
+    jpegError = FALSE;
+    jpegDstManager.next_output_byte = (JOCTET *)tightAfterBuf;
+    jpegDstManager.free_in_buffer = (size_t)tightAfterBufSize;
+}
+
+static boolean
+JpegEmptyOutputBuffer(j_compress_ptr cinfo)
+{
+    jpegError = TRUE;
+    jpegDstManager.next_output_byte = (JOCTET *)tightAfterBuf;
+    jpegDstManager.free_in_buffer = (size_t)tightAfterBufSize;
+
+    return TRUE;
+}
+
+static void
+JpegTermDestination(j_compress_ptr cinfo)
+{
+    jpegDstDataLen = tightAfterBufSize - jpegDstManager.free_in_buffer;
+}
+
+static void
+JpegSetDstManager(j_compress_ptr cinfo)
+{
+    jpegDstManager.init_destination = JpegInitDestination;
+    jpegDstManager.empty_output_buffer = JpegEmptyOutputBuffer;
+    jpegDstManager.term_destination = JpegTermDestination;
+    cinfo->dest = &jpegDstManager;
+}
+
diff --git a/libvncserver/translate.c b/libvncserver/translate.c
new file mode 100755
index 0000000..d5f0896
--- /dev/null
+++ b/libvncserver/translate.c
@@ -0,0 +1,484 @@
+/*
+ * translate.c - translate between different pixel formats
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.  
+ *  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+#include <rfb/rfb.h>
+#include <rfb/rfbregion.h>
+
+static void PrintPixelFormat(rfbPixelFormat *pf);
+static rfbBool rfbSetClientColourMapBGR233(rfbClientPtr cl);
+
+rfbBool rfbEconomicTranslate = FALSE;
+
+/*
+ * Some standard pixel formats.
+ */
+
+static const rfbPixelFormat BGR233Format = {
+    8, 8, 0, 1, 7, 7, 3, 0, 3, 6, 0, 0
+};
+
+
+/*
+ * Macro to compare pixel formats.
+ */
+
+#define PF_EQ(x,y)                                                      \
+        ((x.bitsPerPixel == y.bitsPerPixel) &&                          \
+         (x.depth == y.depth) &&                                        \
+         ((x.bigEndian == y.bigEndian) || (x.bitsPerPixel == 8)) &&     \
+         (x.trueColour == y.trueColour) &&                              \
+         (!x.trueColour || ((x.redMax == y.redMax) &&                   \
+                            (x.greenMax == y.greenMax) &&               \
+                            (x.blueMax == y.blueMax) &&                 \
+                            (x.redShift == y.redShift) &&               \
+                            (x.greenShift == y.greenShift) &&           \
+                            (x.blueShift == y.blueShift))))
+
+#define CONCAT2(a,b) a##b
+#define CONCAT2E(a,b) CONCAT2(a,b)
+#define CONCAT3(a,b,c) a##b##c
+#define CONCAT3E(a,b,c) CONCAT3(a,b,c)
+#define CONCAT4(a,b,c,d) a##b##c##d
+#define CONCAT4E(a,b,c,d) CONCAT4(a,b,c,d)
+
+#undef OUT
+#undef IN
+
+#define OUT 8
+#include "tableinitcmtemplate.c"
+#include "tableinittctemplate.c"
+#define IN 8
+#include "tabletranstemplate.c"
+#undef IN
+#define IN 16
+#include "tabletranstemplate.c"
+#undef IN
+#define IN 32
+#include "tabletranstemplate.c"
+#undef IN
+#undef OUT
+
+#define OUT 16
+#include "tableinitcmtemplate.c"
+#include "tableinittctemplate.c"
+#define IN 8
+#include "tabletranstemplate.c"
+#undef IN
+#define IN 16
+#include "tabletranstemplate.c"
+#undef IN
+#define IN 32
+#include "tabletranstemplate.c"
+#undef IN
+#undef OUT
+
+#define OUT 32
+#include "tableinitcmtemplate.c"
+#include "tableinittctemplate.c"
+#define IN 8
+#include "tabletranstemplate.c"
+#undef IN
+#define IN 16
+#include "tabletranstemplate.c"
+#undef IN
+#define IN 32
+#include "tabletranstemplate.c"
+#undef IN
+#undef OUT
+
+#ifdef LIBVNCSERVER_ALLOW24BPP
+#define COUNT_OFFSETS 4
+#define BPP2OFFSET(bpp) ((bpp)/8-1)
+#include "tableinit24.c"
+#define BPP 8
+#include "tabletrans24template.c"
+#undef BPP
+#define BPP 16
+#include "tabletrans24template.c"
+#undef BPP
+#define BPP 24
+#include "tabletrans24template.c"
+#undef BPP
+#define BPP 32
+#include "tabletrans24template.c"
+#undef BPP
+#else
+#define COUNT_OFFSETS 3
+#define BPP2OFFSET(bpp) ((int)(bpp)/16)
+#endif
+
+typedef void (*rfbInitCMTableFnType)(char **table, rfbPixelFormat *in,
+                                   rfbPixelFormat *out,rfbColourMap* cm);
+typedef void (*rfbInitTableFnType)(char **table, rfbPixelFormat *in,
+                                   rfbPixelFormat *out);
+
+rfbInitCMTableFnType rfbInitColourMapSingleTableFns[COUNT_OFFSETS] = {
+    rfbInitColourMapSingleTable8,
+    rfbInitColourMapSingleTable16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+    rfbInitColourMapSingleTable24,
+#endif
+    rfbInitColourMapSingleTable32
+};
+
+rfbInitTableFnType rfbInitTrueColourSingleTableFns[COUNT_OFFSETS] = {
+    rfbInitTrueColourSingleTable8,
+    rfbInitTrueColourSingleTable16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+    rfbInitTrueColourSingleTable24,
+#endif
+    rfbInitTrueColourSingleTable32
+};
+
+rfbInitTableFnType rfbInitTrueColourRGBTablesFns[COUNT_OFFSETS] = {
+    rfbInitTrueColourRGBTables8,
+    rfbInitTrueColourRGBTables16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+    rfbInitTrueColourRGBTables24,
+#endif
+    rfbInitTrueColourRGBTables32
+};
+
+rfbTranslateFnType rfbTranslateWithSingleTableFns[COUNT_OFFSETS][COUNT_OFFSETS] = {
+    { rfbTranslateWithSingleTable8to8,
+      rfbTranslateWithSingleTable8to16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+      rfbTranslateWithSingleTable8to24,
+#endif
+      rfbTranslateWithSingleTable8to32 },
+    { rfbTranslateWithSingleTable16to8,
+      rfbTranslateWithSingleTable16to16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+      rfbTranslateWithSingleTable16to24,
+#endif
+      rfbTranslateWithSingleTable16to32 },
+#ifdef LIBVNCSERVER_ALLOW24BPP
+    { rfbTranslateWithSingleTable24to8,
+      rfbTranslateWithSingleTable24to16,
+      rfbTranslateWithSingleTable24to24,
+      rfbTranslateWithSingleTable24to32 },
+#endif
+    { rfbTranslateWithSingleTable32to8,
+      rfbTranslateWithSingleTable32to16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+      rfbTranslateWithSingleTable32to24,
+#endif
+      rfbTranslateWithSingleTable32to32 }
+};
+
+rfbTranslateFnType rfbTranslateWithRGBTablesFns[COUNT_OFFSETS][COUNT_OFFSETS] = {
+    { rfbTranslateWithRGBTables8to8,
+      rfbTranslateWithRGBTables8to16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+      rfbTranslateWithRGBTables8to24,
+#endif
+      rfbTranslateWithRGBTables8to32 },
+    { rfbTranslateWithRGBTables16to8,
+      rfbTranslateWithRGBTables16to16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+      rfbTranslateWithRGBTables16to24,
+#endif
+      rfbTranslateWithRGBTables16to32 },
+#ifdef LIBVNCSERVER_ALLOW24BPP
+    { rfbTranslateWithRGBTables24to8,
+      rfbTranslateWithRGBTables24to16,
+      rfbTranslateWithRGBTables24to24,
+      rfbTranslateWithRGBTables24to32 },
+#endif
+    { rfbTranslateWithRGBTables32to8,
+      rfbTranslateWithRGBTables32to16,
+#ifdef LIBVNCSERVER_ALLOW24BPP
+      rfbTranslateWithRGBTables32to24,
+#endif
+      rfbTranslateWithRGBTables32to32 }
+};
+
+
+
+/*
+ * rfbTranslateNone is used when no translation is required.
+ */
+
+void
+rfbTranslateNone(char *table, rfbPixelFormat *in, rfbPixelFormat *out,
+                 char *iptr, char *optr, int bytesBetweenInputLines,
+                 int width, int height)
+{
+    int bytesPerOutputLine = width * (out->bitsPerPixel / 8);
+
+    while (height > 0) {
+        memcpy(optr, iptr, bytesPerOutputLine);
+        iptr += bytesBetweenInputLines;
+        optr += bytesPerOutputLine;
+        height--;
+    }
+}
+
+
+/*
+ * rfbSetTranslateFunction sets the translation function.
+ */
+
+rfbBool
+rfbSetTranslateFunction(cl)
+    rfbClientPtr cl;
+{
+    rfbLog("Pixel format for client %s:\n",cl->host);
+    PrintPixelFormat(&cl->format);
+
+    /*
+     * Check that bits per pixel values are valid
+     */
+
+    if ((cl->screen->rfbServerFormat.bitsPerPixel != 8) &&
+        (cl->screen->rfbServerFormat.bitsPerPixel != 16) &&
+#ifdef LIBVNCSERVER_ALLOW24BPP
+	(cl->screen->rfbServerFormat.bitsPerPixel != 24) &&
+#endif
+        (cl->screen->rfbServerFormat.bitsPerPixel != 32))
+    {
+        rfbErr("%s: server bits per pixel not 8, 16 or 32 (is %d)\n",
+	       "rfbSetTranslateFunction", 
+	       cl->screen->rfbServerFormat.bitsPerPixel);
+        rfbCloseClient(cl);
+        return FALSE;
+    }
+
+    if ((cl->format.bitsPerPixel != 8) &&
+        (cl->format.bitsPerPixel != 16) &&
+#ifdef LIBVNCSERVER_ALLOW24BPP
+	(cl->format.bitsPerPixel != 24) &&
+#endif
+        (cl->format.bitsPerPixel != 32))
+    {
+        rfbErr("%s: client bits per pixel not 8, 16 or 32\n",
+                "rfbSetTranslateFunction");
+        rfbCloseClient(cl);
+        return FALSE;
+    }
+
+    if (!cl->format.trueColour && (cl->format.bitsPerPixel != 8)) {
+        rfbErr("rfbSetTranslateFunction: client has colour map "
+                "but %d-bit - can only cope with 8-bit colour maps\n",
+                cl->format.bitsPerPixel);
+        rfbCloseClient(cl);
+        return FALSE;
+    }
+
+    /*
+     * bpp is valid, now work out how to translate
+     */
+
+    if (!cl->format.trueColour) {
+        /*
+         * truecolour -> colour map
+         *
+         * Set client's colour map to BGR233, then effectively it's
+         * truecolour as well
+         */
+
+        if (!rfbSetClientColourMapBGR233(cl))
+            return FALSE;
+
+        cl->format = BGR233Format;
+    }
+
+    /* truecolour -> truecolour */
+
+    if (PF_EQ(cl->format,cl->screen->rfbServerFormat)) {
+
+        /* client & server the same */
+
+        rfbLog("no translation needed\n");
+        cl->translateFn = rfbTranslateNone;
+        return TRUE;
+    }
+
+    if ((cl->screen->rfbServerFormat.bitsPerPixel < 16) ||
+        ((!cl->screen->rfbServerFormat.trueColour || !rfbEconomicTranslate) &&
+	   (cl->screen->rfbServerFormat.bitsPerPixel == 16))) {
+
+        /* we can use a single lookup table for <= 16 bpp */
+
+        cl->translateFn = rfbTranslateWithSingleTableFns
+                              [BPP2OFFSET(cl->screen->rfbServerFormat.bitsPerPixel)]
+                                  [BPP2OFFSET(cl->format.bitsPerPixel)];
+
+	if(cl->screen->rfbServerFormat.trueColour)
+	  (*rfbInitTrueColourSingleTableFns
+	   [BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable,
+						   &(cl->screen->rfbServerFormat), &cl->format);
+	else
+	  (*rfbInitColourMapSingleTableFns
+	   [BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable,
+						   &(cl->screen->rfbServerFormat), &cl->format,&cl->screen->colourMap);
+
+    } else {
+
+        /* otherwise we use three separate tables for red, green and blue */
+
+        cl->translateFn = rfbTranslateWithRGBTablesFns
+                              [BPP2OFFSET(cl->screen->rfbServerFormat.bitsPerPixel)]
+                                  [BPP2OFFSET(cl->format.bitsPerPixel)];
+
+        (*rfbInitTrueColourRGBTablesFns
+            [BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable,
+                                             &(cl->screen->rfbServerFormat), &cl->format);
+    }
+
+    return TRUE;
+}
+
+
+
+/*
+ * rfbSetClientColourMapBGR233 sets the client's colour map so that it's
+ * just like an 8-bit BGR233 true colour client.
+ */
+
+static rfbBool
+rfbSetClientColourMapBGR233(cl)
+    rfbClientPtr cl;
+{
+    char buf[sz_rfbSetColourMapEntriesMsg + 256 * 3 * 2];
+    rfbSetColourMapEntriesMsg *scme = (rfbSetColourMapEntriesMsg *)buf;
+    uint16_t *rgb = (uint16_t *)(&buf[sz_rfbSetColourMapEntriesMsg]);
+    int i, len;
+    int r, g, b;
+
+    if (cl->format.bitsPerPixel != 8 ) {
+        rfbErr("%s: client not 8 bits per pixel\n",
+                "rfbSetClientColourMapBGR233");
+        rfbCloseClient(cl);
+        return FALSE;
+    }
+    
+    scme->type = rfbSetColourMapEntries;
+
+    scme->firstColour = Swap16IfLE(0);
+    scme->nColours = Swap16IfLE(256);
+
+    len = sz_rfbSetColourMapEntriesMsg;
+
+    i = 0;
+
+    for (b = 0; b < 4; b++) {
+        for (g = 0; g < 8; g++) {
+            for (r = 0; r < 8; r++) {
+                rgb[i++] = Swap16IfLE(r * 65535 / 7);
+                rgb[i++] = Swap16IfLE(g * 65535 / 7);
+                rgb[i++] = Swap16IfLE(b * 65535 / 3);
+            }
+        }
+    }
+
+    len += 256 * 3 * 2;
+
+    if (WriteExact(cl, buf, len) < 0) {
+        rfbLogPerror("rfbSetClientColourMapBGR233: write");
+        rfbCloseClient(cl);
+        return FALSE;
+    }
+    return TRUE;
+}
+
+/* this function is not called very often, so it needn't be
+   efficient. */
+
+/*
+ * rfbSetClientColourMap is called to set the client's colour map.  If the
+ * client is a true colour client, we simply update our own translation table
+ * and mark the whole screen as having been modified.
+ */
+
+rfbBool
+rfbSetClientColourMap(cl, firstColour, nColours)
+    rfbClientPtr cl;
+    int firstColour;
+    int nColours;
+{
+    if (cl->screen->rfbServerFormat.trueColour || !cl->readyForSetColourMapEntries) {
+	return TRUE;
+    }
+
+    if (nColours == 0) {
+	nColours = cl->screen->colourMap.count;
+    }
+
+    if (cl->format.trueColour) {
+	(*rfbInitColourMapSingleTableFns
+	    [BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable,
+					     &cl->screen->rfbServerFormat, &cl->format,&cl->screen->colourMap);
+
+	sraRgnDestroy(cl->modifiedRegion);
+	cl->modifiedRegion =
+	  sraRgnCreateRect(0,0,cl->screen->width,cl->screen->height);
+
+	return TRUE;
+    }
+
+    return rfbSendSetColourMapEntries(cl, firstColour, nColours);
+}
+
+
+/*
+ * rfbSetClientColourMaps sets the colour map for each RFB client.
+ */
+
+void
+rfbSetClientColourMaps(rfbScreen, firstColour, nColours)
+    rfbScreenInfoPtr rfbScreen;
+    int firstColour;
+    int nColours;
+{
+    rfbClientIteratorPtr i;
+    rfbClientPtr cl;
+
+    i = rfbGetClientIterator(rfbScreen);
+    while((cl = rfbClientIteratorNext(i)))
+      rfbSetClientColourMap(cl, firstColour, nColours);
+    rfbReleaseClientIterator(i);
+}
+
+static void
+PrintPixelFormat(pf)
+    rfbPixelFormat *pf;
+{
+    if (pf->bitsPerPixel == 1) {
+        rfbLog("  1 bpp, %s sig bit in each byte is leftmost on the screen.\n",
+               (pf->bigEndian ? "most" : "least"));
+    } else {
+        rfbLog("  %d bpp, depth %d%s\n",pf->bitsPerPixel,pf->depth,
+               ((pf->bitsPerPixel == 8) ? ""
+                : (pf->bigEndian ? ", big endian" : ", little endian")));
+        if (pf->trueColour) {
+            rfbLog("  true colour: max r %d g %d b %d, shift r %d g %d b %d\n",
+                   pf->redMax, pf->greenMax, pf->blueMax,
+                   pf->redShift, pf->greenShift, pf->blueShift);
+        } else {
+            rfbLog("  uses a colour map (not true colour).\n");
+        }
+    }
+}
diff --git a/libvncserver/vncauth.c b/libvncserver/vncauth.c
new file mode 100644
index 0000000..2146e67
--- /dev/null
+++ b/libvncserver/vncauth.c
@@ -0,0 +1,185 @@
+/*
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ */
+
+/*
+ * vncauth.c - Functions for VNC password management and authentication.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <rfb/rfbproto.h>
+#include "d3des.h"
+
+#include <string.h>
+#include <math.h>
+
+#ifdef LIBVNCSERVER_HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef LIBVNCSERVER_HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#include <time.h>
+
+#ifdef WIN32
+#define srandom srand
+#define random rand
+#else
+#include <sys/time.h>
+#endif
+
+
+/*
+ * We use a fixed key to store passwords, since we assume that our local
+ * file system is secure but nonetheless don't want to store passwords
+ * as plaintext.
+ */
+
+static unsigned char fixedkey[8] = {23,82,107,6,35,78,88,7};
+
+
+/*
+ * Encrypt a password and store it in a file.  Returns 0 if successful,
+ * 1 if the file could not be written.
+ */
+
+int
+vncEncryptAndStorePasswd(char *passwd, char *fname)
+{
+    FILE *fp;
+    unsigned int i;
+    unsigned char encryptedPasswd[8];
+
+    if ((fp = fopen(fname,"w")) == NULL) return 1;
+
+	/* windows security sux */
+#ifndef WIN32
+    fchmod(fileno(fp), S_IRUSR|S_IWUSR);
+#endif
+
+    /* pad password with nulls */
+
+    for (i = 0; i < 8; i++) {
+	if (i < strlen(passwd)) {
+	    encryptedPasswd[i] = passwd[i];
+	} else {
+	    encryptedPasswd[i] = 0;
+	}
+    }
+
+    /* Do encryption in-place - this way we overwrite our copy of the plaintext
+       password */
+
+    deskey(fixedkey, EN0);
+    des(encryptedPasswd, encryptedPasswd);
+
+    for (i = 0; i < 8; i++) {
+	putc(encryptedPasswd[i], fp);
+    }
+  
+    fclose(fp);
+    return 0;
+}
+
+
+/*
+ * Decrypt a password from a file.  Returns a pointer to a newly allocated
+ * string containing the password or a null pointer if the password could
+ * not be retrieved for some reason.
+ */
+
+char *
+vncDecryptPasswdFromFile(char *fname)
+{
+    FILE *fp;
+    int i, ch;
+    unsigned char *passwd = (unsigned char *)malloc(9);
+
+    if ((fp = fopen(fname,"r")) == NULL) return NULL;
+
+    for (i = 0; i < 8; i++) {
+	ch = getc(fp);
+	if (ch == EOF) {
+	    fclose(fp);
+	    return NULL;
+	}
+	passwd[i] = ch;
+    }
+
+    fclose(fp);
+
+    deskey(fixedkey, DE1);
+    des(passwd, passwd);
+
+    passwd[8] = 0;
+
+    return (char *)passwd;
+}
+
+
+/*
+ * Generate CHALLENGESIZE random bytes for use in challenge-response
+ * authentication.
+ */
+
+void
+vncRandomBytes(unsigned char *bytes)
+{
+    int i;
+    static rfbBool s_srandom_called = FALSE;
+
+    if (!s_srandom_called) {
+	srandom((unsigned int)time(0) ^ (unsigned int)getpid());
+	s_srandom_called = TRUE;
+    }
+
+    for (i = 0; i < CHALLENGESIZE; i++) {
+	bytes[i] = (unsigned char)(random() & 255);    
+    }
+}
+
+
+/*
+ * Encrypt CHALLENGESIZE bytes in memory using a password.
+ */
+
+void
+vncEncryptBytes(unsigned char *bytes, char *passwd)
+{
+    unsigned char key[8];
+    unsigned int i;
+
+    /* key is simply password padded with nulls */
+
+    for (i = 0; i < 8; i++) {
+	if (i < strlen(passwd)) {
+	    key[i] = passwd[i];
+	} else {
+	    key[i] = 0;
+	}
+    }
+
+    deskey(key, EN0);
+
+    for (i = 0; i < CHALLENGESIZE; i += 8) {
+	des(bytes+i, bytes+i);
+    }
+}
diff --git a/libvncserver/zlib.c b/libvncserver/zlib.c
new file mode 100644
index 0000000..9905810
--- /dev/null
+++ b/libvncserver/zlib.c
@@ -0,0 +1,302 @@
+/*
+ * zlib.c
+ *
+ * Routines to implement zlib based encoding (deflate).
+ */
+
+/*
+ *  Copyright (C) 2000 Tridia Corporation.  All Rights Reserved.
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ *  This is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This software is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this software; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ *  USA.
+ *
+ * For the latest source code, please check:
+ *
+ * http://www.developVNC.org/
+ *
+ * or send email to feedback@developvnc.org.
+ */
+
+#include <rfb/rfb.h>
+
+/*
+ * zlibBeforeBuf contains pixel data in the client's format.
+ * zlibAfterBuf contains the zlib (deflated) encoding version.
+ * If the zlib compressed/encoded version is
+ * larger than the raw data or if it exceeds zlibAfterBufSize then
+ * raw encoding is used instead.
+ */
+
+static int zlibBeforeBufSize = 0;
+static char *zlibBeforeBuf = NULL;
+
+static int zlibAfterBufSize = 0;
+static char *zlibAfterBuf = NULL;
+static int zlibAfterBufLen;
+
+/*
+ * rfbSendOneRectEncodingZlib - send a given rectangle using one Zlib
+ *                              rectangle encoding.
+ */
+
+rfbBool
+rfbSendOneRectEncodingZlib(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    rfbFramebufferUpdateRectHeader rect;
+    rfbZlibHeader hdr;
+    int deflateResult;
+    int previousOut;
+    int i;
+    char *fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y)
+    	   + (x * (cl->screen->bitsPerPixel / 8)));
+
+    int maxRawSize;
+    int maxCompSize;
+
+    maxRawSize = (cl->screen->width * cl->screen->height
+                  * (cl->format.bitsPerPixel / 8));
+
+    if (zlibBeforeBufSize < maxRawSize) {
+	zlibBeforeBufSize = maxRawSize;
+	if (zlibBeforeBuf == NULL)
+	    zlibBeforeBuf = (char *)malloc(zlibBeforeBufSize);
+	else
+	    zlibBeforeBuf = (char *)realloc(zlibBeforeBuf, zlibBeforeBufSize);
+    }
+
+    /* zlib compression is not useful for very small data sets.
+     * So, we just send these raw without any compression.
+     */
+    if (( w * h * (cl->screen->bitsPerPixel / 8)) <
+          VNC_ENCODE_ZLIB_MIN_COMP_SIZE ) {
+
+        int result;
+
+        /* The translation function (used also by the in raw encoding)
+         * requires 4/2/1 byte alignment in the output buffer (which is
+         * updateBuf for the raw encoding) based on the bitsPerPixel of
+         * the viewer/client.  This prevents SIGBUS errors on some
+         * architectures like SPARC, PARISC...
+         */
+        if (( cl->format.bitsPerPixel > 8 ) &&
+            ( cl->ublen % ( cl->format.bitsPerPixel / 8 )) != 0 ) {
+            if (!rfbSendUpdateBuf(cl))
+                return FALSE;
+        }
+
+        result = rfbSendRectEncodingRaw(cl, x, y, w, h);
+
+        return result;
+
+    }
+
+    /*
+     * zlib requires output buffer to be slightly larger than the input
+     * buffer, in the worst case.
+     */
+    maxCompSize = maxRawSize + (( maxRawSize + 99 ) / 100 ) + 12;
+
+    if (zlibAfterBufSize < maxCompSize) {
+	zlibAfterBufSize = maxCompSize;
+	if (zlibAfterBuf == NULL)
+	    zlibAfterBuf = (char *)malloc(zlibAfterBufSize);
+	else
+	    zlibAfterBuf = (char *)realloc(zlibAfterBuf, zlibAfterBufSize);
+    }
+
+    /* 
+     * Convert pixel data to client format.
+     */
+    (*cl->translateFn)(cl->translateLookupTable, &cl->screen->rfbServerFormat,
+		       &cl->format, fbptr, zlibBeforeBuf,
+		       cl->screen->paddedWidthInBytes, w, h);
+
+    cl->compStream.next_in = ( Bytef * )zlibBeforeBuf;
+    cl->compStream.avail_in = w * h * (cl->format.bitsPerPixel / 8);
+    cl->compStream.next_out = ( Bytef * )zlibAfterBuf;
+    cl->compStream.avail_out = maxCompSize;
+    cl->compStream.data_type = Z_BINARY;
+
+    /* Initialize the deflation state. */
+    if ( cl->compStreamInited == FALSE ) {
+
+        cl->compStream.total_in = 0;
+        cl->compStream.total_out = 0;
+        cl->compStream.zalloc = Z_NULL;
+        cl->compStream.zfree = Z_NULL;
+        cl->compStream.opaque = Z_NULL;
+
+        deflateInit2( &(cl->compStream),
+                        cl->zlibCompressLevel,
+                        Z_DEFLATED,
+                        MAX_WBITS,
+                        MAX_MEM_LEVEL,
+                        Z_DEFAULT_STRATEGY );
+        /* deflateInit( &(cl->compStream), Z_BEST_COMPRESSION ); */
+        /* deflateInit( &(cl->compStream), Z_BEST_SPEED ); */
+        cl->compStreamInited = TRUE;
+
+    }
+
+    previousOut = cl->compStream.total_out;
+
+    /* Perform the compression here. */
+    deflateResult = deflate( &(cl->compStream), Z_SYNC_FLUSH );
+
+    /* Find the total size of the resulting compressed data. */
+    zlibAfterBufLen = cl->compStream.total_out - previousOut;
+
+    if ( deflateResult != Z_OK ) {
+        rfbErr("zlib deflation error: %s\n", cl->compStream.msg);
+        return FALSE;
+    }
+
+    /* Note that it is not possible to switch zlib parameters based on
+     * the results of the compression pass.  The reason is
+     * that we rely on the compressor and decompressor states being
+     * in sync.  Compressing and then discarding the results would
+     * cause lose of synchronization.
+     */
+
+    /* Update statics */
+    cl->rfbRectanglesSent[rfbEncodingZlib]++;
+    cl->rfbBytesSent[rfbEncodingZlib] += (sz_rfbFramebufferUpdateRectHeader
+					 + sz_rfbZlibHeader + zlibAfterBufLen);
+
+    if (cl->ublen + sz_rfbFramebufferUpdateRectHeader + sz_rfbZlibHeader
+	> UPDATE_BUF_SIZE)
+    {
+	if (!rfbSendUpdateBuf(cl))
+	    return FALSE;
+    }
+
+    rect.r.x = Swap16IfLE(x);
+    rect.r.y = Swap16IfLE(y);
+    rect.r.w = Swap16IfLE(w);
+    rect.r.h = Swap16IfLE(h);
+    rect.encoding = Swap32IfLE(rfbEncodingZlib);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
+	   sz_rfbFramebufferUpdateRectHeader);
+    cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+    hdr.nBytes = Swap32IfLE(zlibAfterBufLen);
+
+    memcpy(&cl->updateBuf[cl->ublen], (char *)&hdr, sz_rfbZlibHeader);
+    cl->ublen += sz_rfbZlibHeader;
+
+    for (i = 0; i < zlibAfterBufLen;) {
+
+	int bytesToCopy = UPDATE_BUF_SIZE - cl->ublen;
+
+	if (i + bytesToCopy > zlibAfterBufLen) {
+	    bytesToCopy = zlibAfterBufLen - i;
+	}
+
+	memcpy(&cl->updateBuf[cl->ublen], &zlibAfterBuf[i], bytesToCopy);
+
+	cl->ublen += bytesToCopy;
+	i += bytesToCopy;
+
+	if (cl->ublen == UPDATE_BUF_SIZE) {
+	    if (!rfbSendUpdateBuf(cl))
+		return FALSE;
+	}
+    }
+
+    return TRUE;
+
+}
+
+
+/*
+ * rfbSendRectEncodingZlib - send a given rectangle using one or more
+ *                           Zlib encoding rectangles.
+ */
+
+rfbBool
+rfbSendRectEncodingZlib(cl, x, y, w, h)
+    rfbClientPtr cl;
+    int x, y, w, h;
+{
+    int  maxLines;
+    int  linesRemaining;
+    rfbRectangle partialRect;
+
+    partialRect.x = x;
+    partialRect.y = y;
+    partialRect.w = w;
+    partialRect.h = h;
+
+    /* Determine maximum pixel/scan lines allowed per rectangle. */
+    maxLines = ( ZLIB_MAX_SIZE(w) / w );
+
+    /* Initialize number of scan lines left to do. */
+    linesRemaining = h;
+
+    /* Loop until all work is done. */
+    while ( linesRemaining > 0 ) {
+
+        int linesToComp;
+
+        if ( maxLines < linesRemaining )
+            linesToComp = maxLines;
+        else
+            linesToComp = linesRemaining;
+
+        partialRect.h = linesToComp;
+
+        /* Encode (compress) and send the next rectangle. */
+        if ( ! rfbSendOneRectEncodingZlib( cl,
+                                           partialRect.x,
+                                           partialRect.y,
+                                           partialRect.w,
+                                           partialRect.h )) {
+
+            return FALSE;
+        }
+
+        /* Technically, flushing the buffer here is not extrememly
+         * efficient.  However, this improves the overall throughput
+         * of the system over very slow networks.  By flushing
+         * the buffer with every maximum size zlib rectangle, we
+         * improve the pipelining usage of the server CPU, network,
+         * and viewer CPU components.  Insuring that these components
+         * are working in parallel actually improves the performance
+         * seen by the user.
+         * Since, zlib is most useful for slow networks, this flush
+         * is appropriate for the desired behavior of the zlib encoding.
+         */
+        if (( cl->ublen > 0 ) &&
+            ( linesToComp == maxLines )) {
+            if (!rfbSendUpdateBuf(cl)) {
+
+                return FALSE;
+            }
+        }
+
+        /* Update remaining and incremental rectangle location. */
+        linesRemaining -= linesToComp;
+        partialRect.y += linesToComp;
+
+    }
+
+    return TRUE;
+
+}
+
diff --git a/libvncserver/zrle.c b/libvncserver/zrle.c
new file mode 100644
index 0000000..6ab933e
--- /dev/null
+++ b/libvncserver/zrle.c
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2002 RealVNC Ltd.  All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+/*
+ * zrle.c
+ *
+ * Routines to implement Zlib Run-length Encoding (ZRLE).
+ */
+
+#include "rfb/rfb.h"
+#include "zrleoutstream.h"
+
+
+#define GET_IMAGE_INTO_BUF(tx,ty,tw,th,buf)                                \
+{  char *fbptr = (cl->screen->frameBuffer                                   \
+		 + (cl->screen->paddedWidthInBytes * ty)                   \
+                 + (tx * (cl->screen->bitsPerPixel / 8)));                 \
+                                                                           \
+  (*cl->translateFn)(cl->translateLookupTable, &cl->screen->rfbServerFormat,\
+                     &cl->format, fbptr, (char*)buf,                       \
+                     cl->screen->paddedWidthInBytes, tw, th); }
+
+#define EXTRA_ARGS , rfbClientPtr cl
+
+#define BPP 8
+#include <zrleencodetemplate.c>
+#undef BPP
+#define BPP 16
+#include <zrleencodetemplate.c>
+#undef BPP
+#define BPP 32
+#include <zrleencodetemplate.c>
+#define CPIXEL 24A
+#include <zrleencodetemplate.c>
+#undef CPIXEL
+#define CPIXEL 24B
+#include <zrleencodetemplate.c>
+#undef CPIXEL
+#undef BPP
+
+
+/*
+ * zrleBeforeBuf contains pixel data in the client's format.  It must be at
+ * least one pixel bigger than the largest tile of pixel data, since the
+ * ZRLE encoding algorithm writes to the position one past the end of the pixel
+ * data.
+ */
+
+static char zrleBeforeBuf[rfbZRLETileWidth * rfbZRLETileHeight * 4 + 4];
+
+
+
+/*
+ * rfbSendRectEncodingZRLE - send a given rectangle using ZRLE encoding.
+ */
+
+
+rfbBool rfbSendRectEncodingZRLE(rfbClientPtr cl, int x, int y, int w, int h)
+{
+  zrleOutStream* zos;
+  rfbFramebufferUpdateRectHeader rect;
+  rfbZRLEHeader hdr;
+  int i;
+
+  if (!cl->zrleData)
+    cl->zrleData = zrleOutStreamNew();
+  zos = cl->zrleData;
+  zos->in.ptr = zos->in.start;
+  zos->out.ptr = zos->out.start;
+
+  switch (cl->format.bitsPerPixel) {
+
+  case 8:
+    zrleEncode8( x, y, w, h, zos, zrleBeforeBuf, cl);
+    break;
+
+  case 16:
+    zrleEncode16(x, y, w, h, zos, zrleBeforeBuf, cl);
+    break;
+
+  case 32: {
+    rfbBool fitsInLS3Bytes
+      = ((cl->format.redMax   << cl->format.redShift)   < (1<<24) &&
+         (cl->format.greenMax << cl->format.greenShift) < (1<<24) &&
+         (cl->format.blueMax  << cl->format.blueShift)  < (1<<24));
+
+    rfbBool fitsInMS3Bytes = (cl->format.redShift   > 7  &&
+                           cl->format.greenShift > 7  &&
+                           cl->format.blueShift  > 7);
+
+    if ((fitsInLS3Bytes && !cl->format.bigEndian) ||
+        (fitsInMS3Bytes && cl->format.bigEndian))
+    {
+      zrleEncode24A(x, y, w, h, zos, zrleBeforeBuf, cl);
+    }
+    else if ((fitsInLS3Bytes && cl->format.bigEndian) ||
+             (fitsInMS3Bytes && !cl->format.bigEndian))
+    {
+      zrleEncode24B(x, y, w, h, zos, zrleBeforeBuf, cl);
+    }
+    else
+    {
+      zrleEncode32(x, y, w, h, zos, zrleBeforeBuf, cl);
+    }
+  }
+    break;
+  }
+
+  cl->rfbRectanglesSent[rfbEncodingZRLE]++;
+  cl->rfbBytesSent[rfbEncodingZRLE] += (sz_rfbFramebufferUpdateRectHeader
+                                        + sz_rfbZRLEHeader + ZRLE_BUFFER_LENGTH(&zos->out));
+
+  if (cl->ublen + sz_rfbFramebufferUpdateRectHeader + sz_rfbZRLEHeader
+      > UPDATE_BUF_SIZE)
+    {
+      if (!rfbSendUpdateBuf(cl))
+        return FALSE;
+    }
+
+  rect.r.x = Swap16IfLE(x);
+  rect.r.y = Swap16IfLE(y);
+  rect.r.w = Swap16IfLE(w);
+  rect.r.h = Swap16IfLE(h);
+  rect.encoding = Swap32IfLE(rfbEncodingZRLE);
+
+  memcpy(cl->updateBuf+cl->ublen, (char *)&rect,
+         sz_rfbFramebufferUpdateRectHeader);
+  cl->ublen += sz_rfbFramebufferUpdateRectHeader;
+
+  hdr.length = Swap32IfLE(ZRLE_BUFFER_LENGTH(&zos->out));
+
+  memcpy(cl->updateBuf+cl->ublen, (char *)&hdr, sz_rfbZRLEHeader);
+  cl->ublen += sz_rfbZRLEHeader;
+
+  /* copy into updateBuf and send from there.  Maybe should send directly? */
+
+  for (i = 0; i < ZRLE_BUFFER_LENGTH(&zos->out);) {
+
+    int bytesToCopy = UPDATE_BUF_SIZE - cl->ublen;
+
+    if (i + bytesToCopy > ZRLE_BUFFER_LENGTH(&zos->out)) {
+      bytesToCopy = ZRLE_BUFFER_LENGTH(&zos->out) - i;
+    }
+
+    memcpy(cl->updateBuf+cl->ublen, (uint8_t*)zos->out.start + i, bytesToCopy);
+
+    cl->ublen += bytesToCopy;
+    i += bytesToCopy;
+
+    if (cl->ublen == UPDATE_BUF_SIZE) {
+      if (!rfbSendUpdateBuf(cl))
+        return FALSE;
+    }
+  }
+
+  return TRUE;
+}
+
+
+void FreeZrleData(rfbClientPtr cl)
+{
+  if (cl->zrleData)
+    zrleOutStreamFree(cl->zrleData);
+  cl->zrleData = NULL;
+}
+
diff --git a/libvncserver/zrleencodetemplate.c b/libvncserver/zrleencodetemplate.c
new file mode 100644
index 0000000..a1772ae
--- /dev/null
+++ b/libvncserver/zrleencodetemplate.c
@@ -0,0 +1,272 @@
+/*
+ * Copyright (C) 2002 RealVNC Ltd.  All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+/*
+ * Before including this file, you must define a number of CPP macros.
+ *
+ * BPP should be 8, 16 or 32 depending on the bits per pixel.
+ * GET_IMAGE_INTO_BUF should be some code which gets a rectangle of pixel data
+ * into the given buffer.  EXTRA_ARGS can be defined to pass any other
+ * arguments needed by GET_IMAGE_INTO_BUF.
+ *
+ * Note that the buf argument to ZRLE_ENCODE needs to be at least one pixel
+ * bigger than the largest tile of pixel data, since the ZRLE encoding
+ * algorithm writes to the position one past the end of the pixel data.
+ */
+
+#include "zrleoutstream.h"
+#include "zrlepalettehelper.h"
+#include <assert.h>
+
+/* __RFB_CONCAT2 concatenates its two arguments.  __RFB_CONCAT2E does the same
+   but also expands its arguments if they are macros */
+
+#ifndef __RFB_CONCAT2E
+#define __RFB_CONCAT2(a,b) a##b
+#define __RFB_CONCAT2E(a,b) __RFB_CONCAT2(a,b)
+#endif
+
+#ifdef CPIXEL
+#define PIXEL_T __RFB_CONCAT2E(zrle_U,BPP)
+#define zrleOutStreamWRITE_PIXEL __RFB_CONCAT2E(zrleOutStreamWriteOpaque,CPIXEL)
+#define ZRLE_ENCODE __RFB_CONCAT2E(zrleEncode,CPIXEL)
+#define ZRLE_ENCODE_TILE __RFB_CONCAT2E(zrleEncodeTile,CPIXEL)
+#define BPPOUT 24
+#else
+#define PIXEL_T __RFB_CONCAT2E(zrle_U,BPP)
+#define zrleOutStreamWRITE_PIXEL __RFB_CONCAT2E(zrleOutStreamWriteOpaque,BPP)
+#define ZRLE_ENCODE __RFB_CONCAT2E(zrleEncode,BPP)
+#define ZRLE_ENCODE_TILE __RFB_CONCAT2E(zrleEncodeTile,BPP)
+#define BPPOUT BPP
+#endif
+
+#ifndef ZRLE_ONCE
+#define ZRLE_ONCE
+
+static const int bitsPerPackedPixel[] = {
+  0, 1, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4
+};
+
+static zrlePaletteHelper paletteHelper;
+
+#endif /* ZRLE_ONCE */
+
+void ZRLE_ENCODE_TILE (PIXEL_T* data, int w, int h, zrleOutStream* os);
+
+void ZRLE_ENCODE (int x, int y, int w, int h,
+		  zrleOutStream* os, void* buf
+                  EXTRA_ARGS
+                  )
+{
+  int ty;
+  for (ty = y; ty < y+h; ty += rfbZRLETileHeight) {
+    int tx, th = rfbZRLETileHeight;
+    if (th > y+h-ty) th = y+h-ty;
+    for (tx = x; tx < x+w; tx += rfbZRLETileWidth) {
+      int tw = rfbZRLETileWidth;
+      if (tw > x+w-tx) tw = x+w-tx;
+
+      GET_IMAGE_INTO_BUF(tx,ty,tw,th,buf);
+
+      ZRLE_ENCODE_TILE((PIXEL_T*)buf, tw, th, os);
+    }
+  }
+  zrleOutStreamFlush(os);
+}
+
+
+void ZRLE_ENCODE_TILE (PIXEL_T* data, int w, int h, zrleOutStream* os)
+{
+  /* First find the palette and the number of runs */
+
+  zrlePaletteHelper *ph;
+
+  int runs = 0;
+  int singlePixels = 0;
+
+  rfbBool useRle;
+  rfbBool usePalette;
+
+  int estimatedBytes;
+  int plainRleBytes;
+  int i;
+
+  PIXEL_T* ptr = data;
+  PIXEL_T* end = ptr + h * w;
+  *end = ~*(end-1); /* one past the end is different so the while loop ends */
+
+  ph = &paletteHelper;
+  zrlePaletteHelperInit(ph);
+
+  while (ptr < end) {
+    PIXEL_T pix = *ptr;
+    if (*++ptr != pix) {
+      singlePixels++;
+    } else {
+      while (*++ptr == pix) ;
+      runs++;
+    }
+    zrlePaletteHelperInsert(ph, pix);
+  }
+
+  /* Solid tile is a special case */
+
+  if (ph->size == 1) {
+    zrleOutStreamWriteU8(os, 1);
+    zrleOutStreamWRITE_PIXEL(os, ph->palette[0]);
+    return;
+  }
+
+  // Try to work out whether to use RLE and/or a palette.  We do this by
+  // estimating the number of bytes which will be generated and picking the
+  // method which results in the fewest bytes.  Of course this may not result
+  // in the fewest bytes after compression...
+
+  useRle = FALSE;
+  usePalette = FALSE;
+
+  estimatedBytes = w * h * (BPPOUT/8); // start assuming raw
+
+  plainRleBytes = ((BPPOUT/8)+1) * (runs + singlePixels);
+
+  if (plainRleBytes < estimatedBytes) {
+    useRle = TRUE;
+    estimatedBytes = plainRleBytes;
+  }
+
+  if (ph->size < 128) {
+    int paletteRleBytes = (BPPOUT/8) * ph->size + 2 * runs + singlePixels;
+
+    if (paletteRleBytes < estimatedBytes) {
+      useRle = TRUE;
+      usePalette = TRUE;
+      estimatedBytes = paletteRleBytes;
+    }
+
+    if (ph->size < 17) {
+      int packedBytes = ((BPPOUT/8) * ph->size +
+                         w * h * bitsPerPackedPixel[ph->size-1] / 8);
+
+      if (packedBytes < estimatedBytes) {
+        useRle = FALSE;
+        usePalette = TRUE;
+        estimatedBytes = packedBytes;
+      }
+    }
+  }
+
+  if (!usePalette) ph->size = 0;
+
+  zrleOutStreamWriteU8(os, (useRle ? 128 : 0) | ph->size);
+
+  for (i = 0; i < ph->size; i++) {
+    zrleOutStreamWRITE_PIXEL(os, ph->palette[i]);
+  }
+
+  if (useRle) {
+
+    PIXEL_T* ptr = data;
+    PIXEL_T* end = ptr + w * h;
+    PIXEL_T* runStart;
+    PIXEL_T pix;
+    while (ptr < end) {
+      int len;
+      runStart = ptr;
+      pix = *ptr++;
+      while (*ptr == pix && ptr < end)
+        ptr++;
+      len = ptr - runStart;
+      if (len <= 2 && usePalette) {
+        int index = zrlePaletteHelperLookup(ph, pix);
+        if (len == 2)
+          zrleOutStreamWriteU8(os, index);
+        zrleOutStreamWriteU8(os, index);
+        continue;
+      }
+      if (usePalette) {
+        int index = zrlePaletteHelperLookup(ph, pix);
+        zrleOutStreamWriteU8(os, index | 128);
+      } else {
+        zrleOutStreamWRITE_PIXEL(os, pix);
+      }
+      len -= 1;
+      while (len >= 255) {
+        zrleOutStreamWriteU8(os, 255);
+        len -= 255;
+      }
+      zrleOutStreamWriteU8(os, len);
+    }
+
+  } else {
+
+    // no RLE
+
+    if (usePalette) {
+      int bppp;
+      PIXEL_T* ptr = data;
+
+      // packed pixels
+
+      assert (ph->size < 17);
+
+      bppp = bitsPerPackedPixel[ph->size-1];
+
+      for (i = 0; i < h; i++) {
+        zrle_U8 nbits = 0;
+        zrle_U8 byte = 0;
+
+        PIXEL_T* eol = ptr + w;
+
+        while (ptr < eol) {
+          PIXEL_T pix = *ptr++;
+          zrle_U8 index = zrlePaletteHelperLookup(ph, pix);
+          byte = (byte << bppp) | index;
+          nbits += bppp;
+          if (nbits >= 8) {
+            zrleOutStreamWriteU8(os, byte);
+            nbits = 0;
+          }
+        }
+        if (nbits > 0) {
+          byte <<= 8 - nbits;
+          zrleOutStreamWriteU8(os, byte);
+        }
+      }
+    } else {
+
+      // raw
+
+#ifdef CPIXEL
+      PIXEL_T *ptr;
+      for (ptr = data; ptr < data+w*h; ptr++) {
+        zrleOutStreamWRITE_PIXEL(os, *ptr);
+      }
+#else
+      zrleOutStreamWriteBytes(os, (zrle_U8 *)data, w*h*(BPP/8));
+#endif
+    }
+  }
+}
+
+#undef PIXEL_T
+#undef zrleOutStreamWRITE_PIXEL
+#undef ZRLE_ENCODE
+#undef ZRLE_ENCODE_TILE
+#undef BPPOUT
diff --git a/libvncserver/zrleoutstream.c b/libvncserver/zrleoutstream.c
new file mode 100644
index 0000000..d22d649
--- /dev/null
+++ b/libvncserver/zrleoutstream.c
@@ -0,0 +1,276 @@
+/*
+ * Copyright (C) 2002 RealVNC Ltd.  All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#include "zrleoutstream.h"
+#include <stdlib.h>
+
+#define ZRLE_IN_BUFFER_SIZE  16384
+#define ZRLE_OUT_BUFFER_SIZE 1024
+#undef  ZRLE_DEBUG
+
+static rfbBool zrleBufferAlloc(zrleBuffer *buffer, int size)
+{
+  buffer->ptr = buffer->start = malloc(size);
+  if (buffer->start == NULL) {
+    buffer->end = NULL;
+    return FALSE;
+  }
+
+  buffer->end = buffer->start + size;
+
+  return TRUE;
+}
+
+static void zrleBufferFree(zrleBuffer *buffer)
+{
+  if (buffer->start)
+    free(buffer->start);
+  buffer->start = buffer->ptr = buffer->end = NULL;
+}
+
+static rfbBool zrleBufferGrow(zrleBuffer *buffer, int size)
+{
+  int offset;
+
+  size  += buffer->end - buffer->start;
+  offset = ZRLE_BUFFER_LENGTH (buffer);
+
+  buffer->start = realloc(buffer->start, size);
+  if (!buffer->start) {
+    return FALSE;
+  }
+
+  buffer->end = buffer->start + size;
+  buffer->ptr = buffer->start + offset;
+
+  return TRUE;
+}
+
+zrleOutStream *zrleOutStreamNew(void)
+{
+  zrleOutStream *os;
+
+  os = malloc(sizeof(zrleOutStream));
+  if (os == NULL)
+    return NULL;
+
+  if (!zrleBufferAlloc(&os->in, ZRLE_IN_BUFFER_SIZE)) {
+    free(os);
+    return NULL;
+  }
+
+  if (!zrleBufferAlloc(&os->out, ZRLE_OUT_BUFFER_SIZE)) {
+    zrleBufferFree(&os->in);
+    free(os);
+    return NULL;
+  }
+
+  os->zs.zalloc = Z_NULL;
+  os->zs.zfree  = Z_NULL;
+  os->zs.opaque = Z_NULL;
+  if (deflateInit(&os->zs, Z_DEFAULT_COMPRESSION) != Z_OK) {
+    zrleBufferFree(&os->in);
+    free(os);
+    return NULL;
+  }
+
+  return os;
+}
+
+void zrleOutStreamFree (zrleOutStream *os)
+{
+  deflateEnd(&os->zs);
+  zrleBufferFree(&os->in);
+  zrleBufferFree(&os->out);
+  free(os);
+}
+
+rfbBool zrleOutStreamFlush(zrleOutStream *os)
+{
+  os->zs.next_in = os->in.start;
+  os->zs.avail_in = ZRLE_BUFFER_LENGTH (&os->in);
+  
+#ifdef ZRLE_DEBUG
+  rfbLog("zrleOutStreamFlush: avail_in %d\n", os->zs.avail_in);
+#endif
+
+  while (os->zs.avail_in != 0) {
+    do {
+      int ret;
+
+      if (os->out.ptr >= os->out.end &&
+	  !zrleBufferGrow(&os->out, os->out.end - os->out.start)) {
+	rfbLog("zrleOutStreamFlush: failed to grow output buffer\n");
+	return FALSE;
+      }
+
+      os->zs.next_out = os->out.ptr;
+      os->zs.avail_out = os->out.end - os->out.ptr;
+
+#ifdef ZRLE_DEBUG
+      rfbLog("zrleOutStreamFlush: calling deflate, avail_in %d, avail_out %d\n",
+	     os->zs.avail_in, os->zs.avail_out);
+#endif 
+
+      if ((ret = deflate(&os->zs, Z_SYNC_FLUSH)) != Z_OK) {
+	rfbLog("zrleOutStreamFlush: deflate failed with error code %d\n", ret);
+	return FALSE;
+      }
+
+#ifdef ZRLE_DEBUG
+      rfbLog("zrleOutStreamFlush: after deflate: %d bytes\n",
+	     os->zs.next_out - os->out.ptr);
+#endif
+
+      os->out.ptr = os->zs.next_out;
+    } while (os->zs.avail_out == 0);
+  }
+
+  os->in.ptr = os->in.start;
+ 
+  return TRUE;
+}
+
+static int zrleOutStreamOverrun(zrleOutStream *os,
+				int            size)
+{
+#ifdef ZRLE_DEBUG
+  rfbLog("zrleOutStreamOverrun\n");
+#endif
+
+  while (os->in.end - os->in.ptr < size && os->in.ptr > os->in.start) {
+    os->zs.next_in = os->in.start;
+    os->zs.avail_in = ZRLE_BUFFER_LENGTH (&os->in);
+
+    do {
+      int ret;
+
+      if (os->out.ptr >= os->out.end &&
+	  !zrleBufferGrow(&os->out, os->out.end - os->out.start)) {
+	rfbLog("zrleOutStreamOverrun: failed to grow output buffer\n");
+	return FALSE;
+      }
+
+      os->zs.next_out = os->out.ptr;
+      os->zs.avail_out = os->out.end - os->out.ptr;
+
+#ifdef ZRLE_DEBUG
+      rfbLog("zrleOutStreamOverrun: calling deflate, avail_in %d, avail_out %d\n",
+	     os->zs.avail_in, os->zs.avail_out);
+#endif
+
+      if ((ret = deflate(&os->zs, 0)) != Z_OK) {
+	rfbLog("zrleOutStreamOverrun: deflate failed with error code %d\n", ret);
+	return 0;
+      }
+
+#ifdef ZRLE_DEBUG
+      rfbLog("zrleOutStreamOverrun: after deflate: %d bytes\n",
+	     os->zs.next_out - os->out.ptr);
+#endif
+
+      os->out.ptr = os->zs.next_out;
+    } while (os->zs.avail_out == 0);
+
+    /* output buffer not full */
+
+    if (os->zs.avail_in == 0) {
+      os->in.ptr = os->in.start;
+    } else {
+      /* but didn't consume all the data?  try shifting what's left to the
+       * start of the buffer.
+       */
+      rfbLog("zrleOutStreamOverrun: out buf not full, but in data not consumed\n");
+      memmove(os->in.start, os->zs.next_in, os->in.ptr - os->zs.next_in);
+      os->in.ptr -= os->zs.next_in - os->in.start;
+    }
+  }
+
+  if (size > os->in.end - os->in.ptr)
+    size = os->in.end - os->in.ptr;
+
+  return size;
+}
+
+static inline int zrleOutStreamCheck(zrleOutStream *os,
+				     int            size)
+{
+  if (os->in.ptr + size > os->in.end) {
+    return zrleOutStreamOverrun(os, size);
+  }
+  return size;
+}
+
+void zrleOutStreamWriteBytes(zrleOutStream *os,
+			     const zrle_U8 *data,
+			     int            length)
+{
+  const zrle_U8* dataEnd = data + length;
+  while (data < dataEnd) {
+    int n = zrleOutStreamCheck(os, dataEnd - data);
+    memcpy(os->in.ptr, data, n);
+    os->in.ptr += n;
+    data += n;
+  }
+}
+
+void zrleOutStreamWriteU8(zrleOutStream *os, zrle_U8 u)
+{
+  zrleOutStreamCheck(os, 1);
+  *os->in.ptr++ = u;
+}
+
+void zrleOutStreamWriteOpaque8(zrleOutStream *os, zrle_U8 u)
+{
+  zrleOutStreamCheck(os, 1);
+  *os->in.ptr++ = u;
+}
+
+void zrleOutStreamWriteOpaque16 (zrleOutStream *os, zrle_U16 u)
+{
+  zrleOutStreamCheck(os, 2);
+  *os->in.ptr++ = ((zrle_U8*)&u)[0];
+  *os->in.ptr++ = ((zrle_U8*)&u)[1];
+}
+
+void zrleOutStreamWriteOpaque32 (zrleOutStream *os, zrle_U32 u)
+{
+  zrleOutStreamCheck(os, 4);
+  *os->in.ptr++ = ((zrle_U8*)&u)[0];
+  *os->in.ptr++ = ((zrle_U8*)&u)[1];
+  *os->in.ptr++ = ((zrle_U8*)&u)[2];
+  *os->in.ptr++ = ((zrle_U8*)&u)[3];
+}
+
+void zrleOutStreamWriteOpaque24A(zrleOutStream *os, zrle_U32 u)
+{
+  zrleOutStreamCheck(os, 3);
+  *os->in.ptr++ = ((zrle_U8*)&u)[0];
+  *os->in.ptr++ = ((zrle_U8*)&u)[1];
+  *os->in.ptr++ = ((zrle_U8*)&u)[2];
+}
+
+void zrleOutStreamWriteOpaque24B(zrleOutStream *os, zrle_U32 u)
+{
+  zrleOutStreamCheck(os, 3);
+  *os->in.ptr++ = ((zrle_U8*)&u)[1];
+  *os->in.ptr++ = ((zrle_U8*)&u)[2];
+  *os->in.ptr++ = ((zrle_U8*)&u)[3];
+}
diff --git a/libvncserver/zrleoutstream.h b/libvncserver/zrleoutstream.h
new file mode 100644
index 0000000..9e4fe51
--- /dev/null
+++ b/libvncserver/zrleoutstream.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2002 RealVNC Ltd.  All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifndef __ZRLE_OUT_STREAM_H__
+#define __ZRLE_OUT_STREAM_H__
+
+#include <zlib.h>
+#include "zrletypes.h"
+#include "rfb/rfb.h"
+
+typedef struct {
+  zrle_U8 *start;
+  zrle_U8 *ptr;
+  zrle_U8 *end;
+} zrleBuffer;
+
+typedef struct {
+  zrleBuffer in;
+  zrleBuffer out;
+
+  z_stream   zs;
+} zrleOutStream;
+
+#define ZRLE_BUFFER_LENGTH(b) ((b)->ptr - (b)->start)
+
+zrleOutStream *zrleOutStreamNew           (void);
+void           zrleOutStreamFree          (zrleOutStream *os);
+rfbBool        zrleOutStreamFlush         (zrleOutStream *os);
+void           zrleOutStreamWriteBytes    (zrleOutStream *os,
+					   const zrle_U8 *data,
+					   int            length);
+void           zrleOutStreamWriteU8       (zrleOutStream *os,
+					   zrle_U8        u);
+void           zrleOutStreamWriteOpaque8  (zrleOutStream *os,
+					   zrle_U8        u);
+void           zrleOutStreamWriteOpaque16 (zrleOutStream *os,
+					   zrle_U16       u);
+void           zrleOutStreamWriteOpaque32 (zrleOutStream *os,
+					   zrle_U32       u);
+void           zrleOutStreamWriteOpaque24A(zrleOutStream *os,
+					   zrle_U32       u);
+void           zrleOutStreamWriteOpaque24B(zrleOutStream *os,
+					   zrle_U32       u);
+
+#endif /* __ZRLE_OUT_STREAM_H__ */
diff --git a/libvncserver/zrlepalettehelper.c b/libvncserver/zrlepalettehelper.c
new file mode 100644
index 0000000..d758a26
--- /dev/null
+++ b/libvncserver/zrlepalettehelper.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2002 RealVNC Ltd.  All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#include "zrlepalettehelper.h"
+#include <assert.h>
+#include <string.h>
+
+#define ZRLE_HASH(pix) (((pix) ^ ((pix) >> 17)) & 4095)
+
+void zrlePaletteHelperInit(zrlePaletteHelper *helper)
+{
+  memset(helper->palette, 0, sizeof(helper->palette));
+  memset(helper->index, 255, sizeof(helper->index));
+  memset(helper->key, 0, sizeof(helper->key));
+  helper->size = 0;
+}
+
+void zrlePaletteHelperInsert(zrlePaletteHelper *helper, zrle_U32 pix)
+{
+  if (helper->size < ZRLE_PALETTE_MAX_SIZE) {
+    int i = ZRLE_HASH(pix);
+
+    while (helper->index[i] != 255 && helper->key[i] != pix)
+      i++;
+    if (helper->index[i] != 255) return;
+
+    helper->index[i] = helper->size;
+    helper->key[i] = pix;
+    helper->palette[helper->size] = pix;
+  }
+  helper->size++;
+}
+
+int zrlePaletteHelperLookup(zrlePaletteHelper *helper, zrle_U32 pix)
+{
+  int i = ZRLE_HASH(pix);
+
+  assert(helper->size <= ZRLE_PALETTE_MAX_SIZE);
+  
+  while (helper->index[i] != 255 && helper->key[i] != pix)
+    i++;
+  if (helper->index[i] != 255) return helper->index[i];
+
+  return -1;
+}
diff --git a/libvncserver/zrlepalettehelper.h b/libvncserver/zrlepalettehelper.h
new file mode 100644
index 0000000..e1213d1
--- /dev/null
+++ b/libvncserver/zrlepalettehelper.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2002 RealVNC Ltd.  All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+/*
+ * The PaletteHelper class helps us build up the palette from pixel data by
+ * storing a reverse index using a simple hash-table
+ */
+
+#ifndef __ZRLE_PALETTE_HELPER_H__
+#define __ZRLE_PALETTE_HELPER_H__
+
+#include "zrletypes.h"
+
+#define ZRLE_PALETTE_MAX_SIZE 127
+
+typedef struct {
+  zrle_U32  palette[ZRLE_PALETTE_MAX_SIZE];
+  zrle_U8   index[ZRLE_PALETTE_MAX_SIZE + 4096];
+  zrle_U32  key[ZRLE_PALETTE_MAX_SIZE + 4096];
+  int       size;
+} zrlePaletteHelper;
+
+void zrlePaletteHelperInit  (zrlePaletteHelper *helper);
+void zrlePaletteHelperInsert(zrlePaletteHelper *helper,
+			     zrle_U32           pix);
+int  zrlePaletteHelperLookup(zrlePaletteHelper *helper,
+			     zrle_U32           pix);
+
+#endif /* __ZRLE_PALETTE_HELPER_H__ */
diff --git a/libvncserver/zrletypes.h b/libvncserver/zrletypes.h
new file mode 100755
index 0000000..0df42c9
--- /dev/null
+++ b/libvncserver/zrletypes.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2002 RealVNC Ltd.  All Rights Reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifndef __ZRLE_TYPES_H__
+#define __ZRLE_TYPES_H__
+
+typedef unsigned char  zrle_U8;
+typedef unsigned short zrle_U16;
+typedef unsigned int   zrle_U32;
+typedef signed char    zrle_S8;
+typedef signed short   zrle_S16;
+typedef signed int     zrle_S32;
+
+#endif /* __ZRLE_TYPES_H__ */