xref: /illumos-gate/usr/src/lib/libc/port/gen/psignal.c (revision 45ede40b2394db7967e59f19288fae9b62efd4aa)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1988 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 /*
41  * Print the name of the signal indicated by "sig", along with the
42  * supplied message
43  */
44 
45 #pragma weak _psignal = psignal
46 
47 #include "lint.h"
48 #include "_libc_gettext.h"
49 #include <sys/types.h>
50 #include <stdio.h>
51 #include <unistd.h>
52 #include <string.h>
53 #include <signal.h>
54 #include <siginfo.h>
55 
56 #define	strsignal(i)	(_libc_gettext(_sys_siglistp[i]))
57 
58 void
59 psignal(int sig, const char *s)
60 {
61 	char *c;
62 	size_t n = 0;
63 	char buf[256];
64 
65 	if (sig < 0 || sig >= NSIG)
66 		sig = 0;
67 	c = strsignal(sig);
68 	if (s != NULL)
69 		n = strlen(s);
70 	if (n != 0) {
71 		(void) snprintf(buf, sizeof (buf), "%s: %s\n", s, c);
72 	} else {
73 		(void) snprintf(buf, sizeof (buf), "%s\n", c);
74 	}
75 	(void) write(2, buf, strlen(buf));
76 }
77