Annotation of dgamelaunch-openbsd/setproctitle.c, Revision 1.1
1.1 ! rubenllo 1: /* Based on conf.c from UCB sendmail 8.8.8 */
! 2:
! 3: /*
! 4: * Copyright 2003 Damien Miller
! 5: * Copyright (c) 1983, 1995-1997 Eric P. Allman
! 6: * Copyright (c) 1988, 1993
! 7: * The Regents of the University of California. All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: * 3. Neither the name of the University nor the names of its contributors
! 18: * may be used to endorse or promote products derived from this software
! 19: * without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: */
! 33:
! 34: #include "config.h"
! 35: #include "dgamelaunch.h"
! 36:
! 37: #include <stdlib.h>
! 38: #include <stdio.h>
! 39: #include <string.h>
! 40: #include <unistd.h>
! 41: #include <stdarg.h>
! 42: #ifdef HAVE_SYS_PSTAT_H
! 43: #include <sys/pstat.h>
! 44: #endif
! 45:
! 46: #define SPT_NONE 0 /* don't use it at all */
! 47: #define SPT_PSTAT 1 /* use pstat(PSTAT_SETCMD, ...) */
! 48: #define SPT_REUSEARGV 2 /* cover argv with title information */
! 49:
! 50: #ifndef SPT_TYPE
! 51: # define SPT_TYPE SPT_NONE
! 52: #endif
! 53:
! 54: #ifndef SPT_PADCHAR
! 55: # define SPT_PADCHAR '\0'
! 56: #endif
! 57:
! 58: #if SPT_TYPE == SPT_REUSEARGV
! 59: static char *argv_start = NULL;
! 60: static size_t argv_env_len = 0;
! 61: #endif
! 62:
! 63: void
! 64: compat_init_setproctitle(int argc, char *argv[])
! 65: {
! 66: #if defined(SPT_TYPE) && SPT_TYPE == SPT_REUSEARGV
! 67: extern char **environ;
! 68: char *lastargv = NULL;
! 69: char **envp = environ;
! 70: int i;
! 71:
! 72: /*
! 73: * NB: This assumes that argv has already been copied out of the
! 74: * way. This is true for sshd, but may not be true for other
! 75: * programs. Beware.
! 76: */
! 77:
! 78: if (argc == 0 || argv[0] == NULL)
! 79: return;
! 80:
! 81: /* Fail if we can't allocate room for the new environment */
! 82: for (i = 0; envp[i] != NULL; i++)
! 83: ;
! 84: if ((environ = malloc(sizeof(*environ) * (i + 1))) == NULL) {
! 85: environ = envp; /* put it back */
! 86: return;
! 87: }
! 88:
! 89: /*
! 90: * Find the last argv string or environment variable within
! 91: * our process memory area.
! 92: */
! 93: for (i = 0; i < argc; i++) {
! 94: if (lastargv == NULL || lastargv + 1 == argv[i])
! 95: lastargv = argv[i] + strlen(argv[i]);
! 96: }
! 97: for (i = 0; envp[i] != NULL; i++) {
! 98: if (lastargv + 1 == envp[i])
! 99: lastargv = envp[i] + strlen(envp[i]);
! 100: }
! 101:
! 102: argv[1] = NULL;
! 103: argv_start = argv[0];
! 104: argv_env_len = lastargv - argv[0] - 1;
! 105:
! 106: /*
! 107: * Copy environment
! 108: * XXX - will truncate env on strdup fail
! 109: */
! 110: for (i = 0; envp[i] != NULL; i++)
! 111: environ[i] = strdup(envp[i]);
! 112: environ[i] = NULL;
! 113: #endif /* SPT_REUSEARGV */
! 114: }
! 115:
! 116: void
! 117: setproctitle(const char *fmt, ...)
! 118: {
! 119: #if SPT_TYPE != SPT_NONE
! 120: va_list ap;
! 121: char buf[1024];
! 122: size_t len;
! 123: extern char *__progname;
! 124: #if SPT_TYPE == SPT_PSTAT
! 125: union pstun pst;
! 126: #endif
! 127:
! 128: #if SPT_TYPE == SPT_REUSEARGV
! 129: if (argv_env_len <= 0)
! 130: return;
! 131: #endif
! 132:
! 133: strlcpy(buf, __progname, sizeof(buf));
! 134:
! 135: va_start(ap, fmt);
! 136: if (fmt != NULL) {
! 137: len = strlcat(buf, ": ", sizeof(buf));
! 138: if (len < sizeof(buf))
! 139: vsnprintf(buf + len, sizeof(buf) - len , fmt, ap);
! 140: }
! 141: va_end(ap);
! 142:
! 143: #if SPT_TYPE == SPT_PSTAT
! 144: pst.pst_command = buf;
! 145: pstat(PSTAT_SETCMD, pst, strlen(buf), 0, 0);
! 146: #elif SPT_TYPE == SPT_REUSEARGV
! 147: /* debug("setproctitle: copy \"%s\" into len %d",
! 148: buf, argv_env_len); */
! 149: len = strlcpy(argv_start, buf, argv_env_len);
! 150: for(; len < argv_env_len; len++)
! 151: argv_start[len] = SPT_PADCHAR;
! 152: #endif
! 153:
! 154: #endif /* SPT_NONE */
! 155: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to setproctitle.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [contributed] / dgamelaunch-openbsd