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/*
* setproctitle.c
*
* The code in this file, setproctitle.c is heavily based on code from
* proftpd, please see the licening information below.
*
* This file added to the heartbeat tree by Horms <horms@vergenet.net>
*
* Code to portably change the title of a programme as displayed
* by ps(1).
*
* heartbeat: Linux-HA heartbeat code
*
* Copyright (C) 1999,2000,2001 Alan Robertson <alanr@unix.sh>
*
* This program 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 program 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.
*/
/*
* ProFTPD - FTP server daemon
* Copyright (c) 1997, 1998 Public Flood Software
* Copyright (C) 1999, 2000 MacGyver aka Habeeb J. Dihu <macgyver@tos.net>
*
* This program 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 program 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.
*
* As a special exemption, Public Flood Software/MacGyver aka Habeeb J. Dihu
* and other respective copyright holders give permission to link this program
* with OpenSSL, and distribute the resulting executable, without including
* the source code for OpenSSL in the source distribution.
*/
#include <lha_internal.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <stdarg.h>
#define PF_ARGV_NONE 0
#define PF_ARGV_NEW 1
#define PF_ARGV_WRITEABLE 2
#define PF_ARGV_PSTAT 3
#define PF_ARGV_PSSTRINGS 4
#if PF_ARGV_TYPE == PF_ARGV_PSTAT
# include <pstat.h>
#endif
#include <clplumbing/setproctitle.h>
#if PF_ARGV_TYPE != PF_ARGV_NONE
static char **Argv = NULL;
static char *LastArgv = NULL;
#endif /* PF_ARGV_TYPE != PF_ARGV_NONE */
extern char **environ;
#ifdef HAVE___PROGNAME
extern char *__progname;
extern char *__progname_full;
#endif /* HAVE___PROGNAME */
int
init_set_proc_title(int argc, char *argv[], char *envp[])
{
#if PF_ARGV_TYPE == PF_ARGV_NONE
return 0;
#else
int i;
int envpsize;
char **p;
/* Move the environment so setproctitle can use the space.
*/
for(i = envpsize = 0; envp[i] != NULL; i++) {
envpsize += strlen(envp[i]) + 1;
}
p = (char **) malloc((i + 1) * sizeof(char *));
if (p == NULL) {
return -1;
}
environ = p;
for(i = 0; envp[i] != NULL; i++) {
environ[i] = strdup(envp[i]);
if(environ[i] == NULL) {
goto error_environ;
}
}
environ[i] = NULL;
Argv = argv;
for(i = 0; i < argc; i++) {
if(!i || (LastArgv + 1 == argv[i]))
LastArgv = argv[i] + strlen(argv[i]);
}
for(i = 0; envp[i] != NULL; i++) {
if((LastArgv + 1) == envp[i]) {
LastArgv = envp[i] + strlen(envp[i]);
}
}
#ifdef HAVE___PROGNAME
/* Set the __progname and __progname_full variables so glibc and
* company don't go nuts. - MacGyver
*/
__progname = strdup("heartbeat");
if (__progname == NULL) {
goto error_environ;
}
__progname_full = strdup(argv[0]);
if (__progname_full == NULL) {
goto error_environ;
}
#endif /* HAVE___PROGNAME */
return 0;
error_environ:
for(i = 0; environ[i] != NULL; i++) {
free(environ[i]);
}
free(environ);
return -1;
#endif /* PF_ARGV_TYPE == PF_ARGV_NONE */
}
void set_proc_title(const char *fmt,...)
{
#if PF_ARGV_TYPE != PF_ARGV_NONE
va_list msg;
static char statbuf[BUFSIZ];
#ifndef HAVE_SETPROCTITLE
#if PF_ARGV_TYPE == PF_ARGV_PSTAT
union pstun pst;
#endif /* PF_ARGV_PSTAT */
int i,maxlen = (LastArgv - Argv[0]) - 2;
char *p;
#endif /* HAVE_SETPROCTITLE */
va_start(msg,fmt);
memset(statbuf, 0, sizeof(statbuf));
#ifdef HAVE_SETPROCTITLE
# if __FreeBSD__ >= 4 && !defined(FREEBSD4_0) && !defined(FREEBSD4_1)
/* FreeBSD's setproctitle() automatically prepends the process name. */
vsnprintf(statbuf, sizeof(statbuf), fmt, msg);
# else /* FREEBSD4 */
/* Manually append the process name for non-FreeBSD platforms. */
vsnprintf(statbuf + strlen(statbuf), sizeof(statbuf) - strlen(statbuf),
fmt, msg);
# endif /* FREEBSD4 */
setproctitle("%s", statbuf);
#else /* HAVE_SETPROCTITLE */
/* Manually append the process name for non-setproctitle() platforms. */
vsnprintf(statbuf + strlen(statbuf), sizeof(statbuf) - strlen(statbuf),
fmt, msg);
#endif /* HAVE_SETPROCTITLE */
va_end(msg);
#ifdef HAVE_SETPROCTITLE
return;
#else
i = strlen(statbuf);
#if PF_ARGV_TYPE == PF_ARGV_NEW
/* We can just replace argv[] arguments. Nice and easy.
*/
Argv[0] = statbuf;
Argv[1] = NULL;
#endif /* PF_ARGV_NEW */
#if PF_ARGV_TYPE == PF_ARGV_WRITEABLE
/* We can overwrite individual argv[] arguments. Semi-nice.
*/
snprintf(Argv[0], maxlen, "%s", statbuf);
p = &Argv[0][i];
while(p < LastArgv)
*p++ = '\0';
Argv[1] = NULL;
#endif /* PF_ARGV_WRITEABLE */
#if PF_ARGV_TYPE == PF_ARGV_PSTAT
pst.pst_command = statbuf;
pstat(PSTAT_SETCMD, pst, i, 0, 0);
#endif /* PF_ARGV_PSTAT */
#if PF_ARGV_TYPE == PF_ARGV_PSSTRINGS
PS_STRINGS->ps_nargvstr = 1;
PS_STRINGS->ps_argvstr = statbuf;
#endif /* PF_ARGV_PSSTRINGS */
#endif /* HAVE_SETPROCTITLE */
#endif /* PF_ARGV_TYPE != PF_ARGV_NONE */
}
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