summaryrefslogtreecommitdiffstats
path: root/tdm/backend/netaddr.c
diff options
context:
space:
mode:
authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-01-22 01:02:36 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-01-22 01:02:36 -0600
commitb81e43465b14836b17e4fe2dea91c78a2bdd29b3 (patch)
tree7815d61ce59a6ccb6e655ed44f5fea786f520985 /tdm/backend/netaddr.c
parent7021f40c13f949b7cb5ded32d0241d648a43bf6c (diff)
downloadtdebase-b81e43465b14836b17e4fe2dea91c78a2bdd29b3.tar.gz
tdebase-b81e43465b14836b17e4fe2dea91c78a2bdd29b3.zip
Part 2 of prior commit
Diffstat (limited to 'tdm/backend/netaddr.c')
-rw-r--r--tdm/backend/netaddr.c219
1 files changed, 219 insertions, 0 deletions
diff --git a/tdm/backend/netaddr.c b/tdm/backend/netaddr.c
new file mode 100644
index 000000000..349a53528
--- /dev/null
+++ b/tdm/backend/netaddr.c
@@ -0,0 +1,219 @@
+/*
+
+Copyright 1991, 1998 The Open Group
+Copyright 2002 Sun Microsystems, Inc. All rights reserved.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of a copyright holder shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from the copyright holder.
+
+*/
+
+/*
+ * xdm - display manager daemon
+ * Author: Keith Packard, MIT X Consortium
+ *
+ * netaddr.c - Interpretation of XdmcpNetaddr object.
+ */
+
+#include "dm.h"
+#include "dm_socket.h"
+#include "dm_error.h"
+
+/* given an char *, returns the socket protocol family used,
+ e.g., AF_INET */
+
+int
+NetaddrFamily( char *netaddrp )
+{
+#ifdef STREAMSCONN
+ short family = *(short *)netaddrp;
+ return family;
+#else
+ return ((struct sockaddr *)netaddrp)->sa_family;
+#endif
+}
+
+
+/* given an char *, returns a pointer to the TCP/UDP port used
+ and sets *lenp to the length of the address
+ or 0 if not using TCP or UDP. */
+
+char *
+NetaddrPort( char *netaddrp, int *lenp )
+{
+#ifdef STREAMSCONN
+ *lenp = 2;
+ return netaddrp+2;
+#else
+ switch (NetaddrFamily( netaddrp ))
+ {
+ case AF_INET:
+ *lenp = 2;
+ return (char *)&(((struct sockaddr_in *)netaddrp)->sin_port);
+#if defined(IPv6) && defined(AF_INET6)
+ case AF_INET6:
+ *lenp = 2;
+ return (char *)&(((struct sockaddr_in6 *)netaddrp)->sin6_port);
+#endif
+ default:
+ *lenp = 0;
+ return NULL;
+ }
+#endif
+}
+
+
+/* given an char *, returns a pointer to the network address
+ and sets *lenp to the length of the address */
+
+char *
+NetaddrAddress( char *netaddrp, int *lenp )
+{
+#ifdef STREAMSCONN
+ *lenp = 4;
+ return netaddrp+4;
+#else
+ switch (NetaddrFamily( netaddrp )) {
+#ifdef UNIXCONN
+ case AF_UNIX:
+ *lenp = strlen( ((struct sockaddr_un *)netaddrp)->sun_path );
+ return (char *)(((struct sockaddr_un *)netaddrp)->sun_path);
+#endif
+#ifdef TCPCONN
+ case AF_INET:
+ *lenp = sizeof(struct in_addr);
+ return (char *)&(((struct sockaddr_in *)netaddrp)->sin_addr);
+#if defined(IPv6) && defined(AF_INET6)
+ case AF_INET6:
+ {
+ struct in6_addr *a = &(((struct sockaddr_in6 *)netaddrp)->sin6_addr);
+ if (IN6_IS_ADDR_V4MAPPED( a )) {
+ *lenp = sizeof(struct in_addr);
+ return ((char *)&(a->s6_addr))+12;
+ } else {
+ *lenp = sizeof(struct in6_addr);
+ return (char *)&(a->s6_addr);
+ }
+ }
+#endif
+#endif
+#ifdef DNETCONN
+ case AF_DECnet:
+ *lenp = sizeof(struct dn_naddr);
+ return (char *)&(((struct sockaddr_dn *)netaddrp)->sdn_add);
+#endif
+#ifdef AF_CHAOS
+ case AF_CHAOS:
+#endif
+ default:
+ *lenp = 0;
+ return NULL;
+ }
+#endif /* STREAMSCONN else */
+}
+
+
+/* given an char *, sets *addr to the network address used and
+ sets *len to the number of bytes in addr.
+ Returns the X protocol family used, e.g., FamilyInternet */
+
+int
+ConvertAddr( char *saddr, int *len, char **addr )
+{
+ int retval;
+
+ if (len == NULL)
+ return -1;
+ *addr = NetaddrAddress( saddr, len );
+#ifdef STREAMSCONN
+ /* kludge */
+ if (NetaddrFamily( saddr ) == 2)
+ retval = FamilyInternet;
+#else
+ switch (NetaddrFamily( saddr )) {
+#ifdef AF_UNSPEC
+ case AF_UNSPEC:
+ retval = FamilyLocal;
+ break;
+#endif
+#ifdef AF_UNIX
+#ifndef __hpux
+ case AF_UNIX:
+ retval = FamilyLocal;
+ break;
+#endif
+#endif
+#ifdef TCPCONN
+ case AF_INET:
+ retval = FamilyInternet;
+ break;
+#if defined(IPv6) && defined(AF_INET6)
+ case AF_INET6:
+ if (*len == sizeof(struct in_addr))
+ retval = FamilyInternet;
+ else
+ retval = FamilyInternet6;
+ break;
+#endif
+#endif
+#ifdef DNETCONN
+ case AF_DECnet:
+ retval = FamilyDECnet;
+ break;
+#endif
+#ifdef AF_CHAOS
+ case AF_CHAOS:
+ retval = FamilyChaos;
+ break;
+#endif
+ default:
+ retval = -1;
+ break;
+ }
+#endif /* STREAMSCONN else */
+ Debug( "ConvertAddr returning %d for family %d\n", retval,
+ NetaddrFamily( saddr ) );
+ return retval;
+}
+
+#ifdef XDMCP
+int
+addressEqual( char *a1, int len1, char *a2, int len2 )
+{
+ int partlen1, partlen2;
+ char *part1, *part2;
+
+ if (len1 != len2)
+ return FALSE;
+ if (NetaddrFamily( a1 ) != NetaddrFamily( a2 ))
+ return FALSE;
+ part1 = NetaddrPort( a1, &partlen1 );
+ part2 = NetaddrPort( a2, &partlen2 );
+ if (partlen1 != partlen2 || memcmp( part1, part2, partlen1 ) != 0)
+ return FALSE;
+ part1 = NetaddrAddress( a1, &partlen1 );
+ part2 = NetaddrAddress( a2, &partlen2 );
+ if (partlen1 != partlen2 || memcmp( part1, part2, partlen1 ) != 0)
+ return FALSE;
+ return TRUE;
+}
+#endif