Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 302 insertions, 0 deletions

diff --git a/kinit/setproctitle.cpp b/kinit/setproctitle.cpp
new file mode 100644
index 000000000..a326ef291
--- /dev/null
+++ b/kinit/setproctitle.cpp
@@ -0,0 +1,302 @@
+/*
+ * Copyright (c) 1998 Sendmail, Inc.  All rights reserved.
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman.  All rights reserved.
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the sendmail distribution.
+ *
+ * A copy of the above mentioned LICENSE file can be found in
+ * LICENSE.setproctitle.
+ *
+ * Ported for use with KDE by Waldo Bastian <bastian@kde.org>
+ */
+
+#include "setproctitle.h"
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/* _GNU_SOURCE might already be defined in <config.h> */
+#ifndef _GNU_SOURCE
+#  define _GNU_SOURCE
+#endif
+#include <stdio.h>
+#include <stdarg.h>
+#include <sys/ioctl.h>
+#include <sys/param.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* _PATH_KMEM should be defined in <paths.h> */
+#ifndef _PATH_KMEM
+# define _PATH_KMEM	"/dev/kmem"
+#endif
+
+#define SPACELEFT(buf, ptr)	(sizeof buf - ((ptr) - buf))
+
+
+/*
+**  SETPROCTITLE -- set process title for ps
+**
+**	Parameters:
+**		fmt -- a printf style format string.
+**		a, b, c -- possible parameters to fmt.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Clobbers argv of our main procedure so ps(1) will
+**		display the title.
+*/
+
+#define SPT_NONE	0	/* don't use it at all */
+#define SPT_REUSEARGV	1	/* cover argv with title information */
+#define SPT_BUILTIN	2	/* use libc builtin */
+#define SPT_PSTAT	3	/* use pstat(PSTAT_SETCMD, ...) */
+#define SPT_PSSTRINGS	4	/* use PS_STRINGS->... */
+#define SPT_SYSMIPS	5	/* use sysmips() supported by NEWS-OS 6 */
+#define SPT_SCO		6	/* write kernel u. area */
+#define SPT_CHANGEARGV	7	/* write our own strings into argv[] */
+
+#ifndef SPT_TYPE
+# define SPT_TYPE	SPT_REUSEARGV
+#endif
+
+#if SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN
+
+# if SPT_TYPE == SPT_PSTAT
+#  include <sys/pstat.h>
+# endif
+# if SPT_TYPE == SPT_PSSTRINGS
+#  include <machine/vmparam.h>
+#  ifdef HAVE_SYS_EXEC_H
+#    include <sys/exec.h>
+#  endif
+#  ifndef PS_STRINGS	/* hmmmm....  apparently not available after all */
+#   undef SPT_TYPE
+#   define SPT_TYPE	SPT_REUSEARGV
+#  else
+#   ifndef NKPDE			/* FreeBSD 2.0 */
+#    define NKPDE 63
+typedef unsigned int	*pt_entry_t;
+#   endif
+#  endif
+# endif
+
+# if SPT_TYPE == SPT_PSSTRINGS || SPT_TYPE == SPT_CHANGEARGV
+#  define SETPROC_STATIC	static
+# else
+#  define SETPROC_STATIC
+# endif
+
+# if SPT_TYPE == SPT_SYSMIPS
+#  include <sys/sysmips.h>
+#  include <sys/sysnews.h>
+# endif
+
+# if SPT_TYPE == SPT_SCO
+#  include <sys/immu.h>
+#  include <sys/dir.h>
+#  include <sys/user.h>
+#  include <sys/fs/s5param.h>
+#  if PSARGSZ > MAXLINE
+#   define SPT_BUFSIZE	PSARGSZ
+#  endif
+# endif
+
+# ifndef SPT_PADCHAR
+#  ifdef _AIX
+#   define SPT_PADCHAR	'\0'
+#  else
+#   define SPT_PADCHAR	' '
+#  endif
+# endif
+
+#endif /* SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN */
+
+# ifndef SPT_BUFSIZE
+#  define SPT_BUFSIZE	2048
+# endif
+
+/*
+**  Pointers for setproctitle.
+**	This allows "ps" listings to give more useful information.
+*/
+
+char		**Argv = NULL;		/* pointer to argument vector */
+char		*LastArgv = NULL;	/* end of argv */
+
+void
+kdeinit_initsetproctitle(int argc, char **argv, char **envp)
+{
+	register int i, envpsize = 0;
+#if !defined(HAVE_NSGETENVIRON) || !defined(HAVE_CRT_EXTERNS_H)
+	extern char **environ;
+#endif
+
+	/*
+	**  Move the environment so setproctitle can use the space at
+	**  the top of memory.
+	*/
+
+	for (i = 0; envp[i] != NULL; i++)
+		envpsize += strlen(envp[i]) + 1;
+	environ = (char **) malloc(sizeof (char *) * (i + 1));
+	if (environ == NULL)
+        	return;
+
+	for (i = 0; envp[i] != NULL; i++)
+		environ[i] = strdup(envp[i]);
+	environ[i] = NULL;
+
+	/*
+	**  Save start and extent of argv for setproctitle.
+	*/
+
+	Argv = argv;
+
+	/*
+	**  Determine how much space we can use for setproctitle.
+	**  Use all contiguous argv and envp pointers starting at argv[0]
+ 	*/
+	for (i = 0; i < argc; i++)
+	{
+		if (i==0 || LastArgv + 1 == argv[i])
+			LastArgv = argv[i] + strlen(argv[i]);
+		else
+			continue;
+	}
+
+        /*
+         * On linux, we don't want to reuse the memory allocated for
+         * the environment, as there are tools that try to read our environment
+         * variables while we're running (ConsoleKit does that). 
+         * There is no way to move or resize it, so just not touchint it
+         * seems to be the only option
+         */
+#ifndef __linux__
+	for (i=0; envp[i] != NULL; i++)
+	{
+		if (LastArgv + 1 == envp[i])
+			LastArgv = envp[i] + strlen(envp[i]);
+		else
+			continue;
+	}
+#endif
+}
+
+#if SPT_TYPE != SPT_BUILTIN
+
+/*VARARGS1*/
+static void
+setproctitle(const char *fmt, ...)
+{
+# if SPT_TYPE != SPT_NONE
+	register char *p;
+	register int i;
+	SETPROC_STATIC char buf[SPT_BUFSIZE];
+	va_list ap;
+#  if SPT_TYPE == SPT_PSTAT
+	union pstun pst;
+#  endif
+#  if SPT_TYPE == SPT_SCO
+	off_t seek_off;
+	static int kmem = -1;
+#warning (rikkus) kmempid is declared as int, should be long
+	static int kmempid = -1;
+	struct user u;
+#  endif
+
+	p = buf;
+
+	/* print the argument string */
+	va_start(ap, fmt);
+	(void) vsnprintf(p, SPACELEFT(buf, p), fmt, ap);
+	va_end(ap);
+
+	i = strlen(buf);
+
+#  if SPT_TYPE == SPT_PSTAT
+	pst.pst_command = buf;
+	pstat(PSTAT_SETCMD, pst, i, 0, 0);
+#  endif
+#  if SPT_TYPE == SPT_PSSTRINGS
+	PS_STRINGS->ps_nargvstr = 1;
+	PS_STRINGS->ps_argvstr = buf;
+#  endif
+#  if SPT_TYPE == SPT_SYSMIPS
+	sysmips(SONY_SYSNEWS, NEWS_SETPSARGS, buf);
+#  endif
+#  if SPT_TYPE == SPT_SCO
+	if (kmem < 0 || kmempid != getpid())
+	{
+		if (kmem >= 0)
+			close(kmem);
+		kmem = open(_PATH_KMEM, O_RDWR, 0);
+		if (kmem < 0)
+			return;
+		(void) fcntl(kmem, F_SETFD, 1);
+		kmempid = getpid();
+	}
+	buf[PSARGSZ - 1] = '\0';
+	seek_off = UVUBLK + (off_t) u.u_psargs - (off_t) &u;
+	if (lseek(kmem, (off_t) seek_off, SEEK_SET) == seek_off)
+		(void) write(kmem, buf, PSARGSZ);
+#  endif
+#  if SPT_TYPE == SPT_REUSEARGV
+	if (i > LastArgv - Argv[0] - 2)
+	{
+		i = LastArgv - Argv[0] - 2;
+		buf[i] = '\0';
+	}
+	(void) strcpy(Argv[0], buf);
+	p = &Argv[0][i];
+	while (p < LastArgv)
+		*p++ = SPT_PADCHAR;
+	Argv[1] = NULL;
+#  endif
+#  if SPT_TYPE == SPT_CHANGEARGV
+	Argv[0] = buf;
+	Argv[1] = 0;
+#  endif
+# endif /* SPT_TYPE != SPT_NONE */
+}
+
+#endif /* SPT_TYPE != SPT_BUILTIN */
+/*
+**  SM_SETPROCTITLE -- set process task and set process title for ps
+**
+**	Possibly set process status and call setproctitle() to
+**	change the ps display.
+**
+**	Parameters:
+**		status -- whether or not to store as process status
+**		fmt -- a printf style format string.
+**		a, b, c -- possible parameters to fmt.
+**
+**	Returns:
+**		none.
+*/
+
+/*VARARGS2*/
+void
+kdeinit_setproctitle(const char *fmt, ...)
+{
+	char buf[SPT_BUFSIZE];
+
+	va_list ap;
+	/* print the argument string */
+	va_start(ap, fmt);
+	(void) vsnprintf(buf, SPT_BUFSIZE, fmt, ap);
+	va_end(ap);
+
+	setproctitle("%s", buf);
+}
+