1 /*
2 * Copyright (c) 2016 Nicholas Marriott <nicholas.marriott@gmail.com>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
14 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <sys/types.h>
18
19 #include <stdarg.h>
20 #include <stdlib.h>
21 #include <string.h>
22
23 #include "compat.h"
24
25 #if defined(HAVE_PRCTL) && defined(HAVE_PR_SET_NAME)
26
27 #include <sys/prctl.h>
28
29 void
setproctitle(const char * fmt,...)30 setproctitle(const char *fmt, ...)
31 {
32 char title[16], name[16], *cp;
33 va_list ap;
34 int used;
35
36 va_start(ap, fmt);
37 vsnprintf(title, sizeof title, fmt, ap);
38 va_end(ap);
39
40 used = snprintf(name, sizeof name, "%s: %s", getprogname(), title);
41 if (used >= (int)sizeof name) {
42 cp = strrchr(name, ' ');
43 if (cp != NULL)
44 *cp = '\0';
45 }
46 prctl(PR_SET_NAME, name);
47 }
48 #else
49 void
setproctitle(__unused const char * fmt,...)50 setproctitle(__unused const char *fmt, ...)
51 {
52 }
53 #endif
54