psignal.c revision 677b6e605be95f434602f19a627ea0dea2927ccd 
1/*	$NetBSD: psignal.c,v 1.23 2012/03/13 21:13:36 christos Exp $	*/
2
3/*
4 * Copyright (c) 1983, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33#if defined(LIBC_SCCS) && !defined(lint)
34#if 0
35static char sccsid[] = "@(#)psignal.c	8.1 (Berkeley) 6/4/93";
36#else
37__RCSID("$NetBSD: psignal.c,v 1.23 2012/03/13 21:13:36 christos Exp $");
38#endif
39#endif /* LIBC_SCCS and not lint */
40
41#include "namespace.h"
42
43#include <sys/types.h>
44#include <sys/uio.h>
45
46#include <limits.h>
47#include <signal.h>
48#include <string.h>
49#include <unistd.h>
50
51#include "extern.h"
52
53#ifdef __weak_alias
54__weak_alias(psignal,_psignal)
55#endif
56
57void
58psignal(int sig, const char *s)
59{
60	struct iovec *v;
61	struct iovec iov[4];
62	char buf[NL_TEXTMAX];
63
64	v = iov;
65	if (s && *s) {
66		v->iov_base = __UNCONST(s);
67		v->iov_len = strlen(s);
68		v++;
69		v->iov_base = __UNCONST(": ");
70		v->iov_len = 2;
71		v++;
72	}
73	v->iov_base = __UNCONST(__strsignal((int)sig, buf, sizeof(buf)));
74	v->iov_len = strlen(v->iov_base);
75	v++;
76	v->iov_base = __UNCONST("\n");
77	v->iov_len = 1;
78	(void)writev(STDERR_FILENO, iov, (int)((v - iov) + 1));
79}
80
81void
82psiginfo(const siginfo_t *si, const char *s)
83{
84	psignal(si->si_signo, s);
85}
86