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 <string.h>
21
22#include "compat.h"
23
24#if defined(HAVE_PRCTL) && defined(HAVE_PR_SET_NAME)
25
26#include <sys/prctl.h>
27
28void
29setproctitle(const char *fmt, ...)
30{
31	char	title[16], name[16], *cp;
32	va_list	ap;
33	int	used;
34
35	va_start(ap, fmt);
36	vsnprintf(title, sizeof title, fmt, ap);
37	va_end(ap);
38
39	used = snprintf(name, sizeof name, "%s: %s", getprogname(), title);
40	if (used >= (int)sizeof name) {
41		cp = strrchr(name, ' ');
42		if (cp != NULL)
43			*cp = '\0';
44	}
45	prctl(PR_SET_NAME, name);
46}
47#else
48void
49setproctitle(__unused const char *fmt, ...)
50{
51}
52#endif
53