1 /* $OpenBSD: psignal.c,v 1.10 2015/08/31 02:53:57 guenther Exp $ */
2 /*
3 * Copyright (c) 1983, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 /*
32 * Print the name of the signal indicated
33 * along with the supplied message.
34 */
35 #include <sys/types.h>
36 #include <sys/uio.h>
37 #include <signal.h>
38 #include <string.h>
39 #include <unistd.h>
40 #include <limits.h>
41
42 void
psignal(unsigned int sig,const char * s)43 psignal(unsigned int sig, const char *s)
44 {
45 static char buf[NL_TEXTMAX];
46 const char *c;
47 struct iovec iov[4];
48 int niov = 0;
49
50 c = __strsignal(sig, buf);
51 if (s && *s) {
52 iov[0].iov_base = (void *)s;
53 iov[0].iov_len = strlen(s);
54 iov[1].iov_base = ": ";
55 iov[1].iov_len = 2;
56 niov = 2;
57 }
58 iov[niov].iov_base = (void *)c;
59 iov[niov].iov_len = strlen(c);
60 iov[niov+1].iov_base = "\n";
61 iov[niov+1].iov_len = 1;
62 (void)writev(STDERR_FILENO, iov, niov+2);
63 }
64