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Diffstat (limited to '')
| -rw-r--r-- | lib/clplumbing/setproctitle.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/lib/clplumbing/setproctitle.c b/lib/clplumbing/setproctitle.c new file mode 100644 index 0000000..ffc5481 --- /dev/null +++ b/lib/clplumbing/setproctitle.c @@ -0,0 +1,235 @@ +/* + * 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 */ +} |