Annotation of dgamelaunch-openbsd/setproctitle.c, Revision 1.1.1.1
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