xref: /illumos-gate/usr/src/lib/libc/port/gen/perror.c (revision 7257d1b4)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include "lint.h"
33 #include "_libc_gettext.h"
34 
35 #include <sys/types.h>
36 #include <errno.h>
37 #include <stdio.h>
38 #include <string.h>
39 #include <unistd.h>
40 
41 extern int _sys_num_err;
42 extern const char _sys_errs[];
43 extern const int _sys_index[];
44 
45 /*
46  * Print the error indicated
47  * in the cerror cell.
48  */
49 void
perror(const char * s)50 perror(const char *s)
51 {
52 	const char *c;
53 	int err = errno;
54 
55 	if (err < _sys_num_err && err >= 0)
56 		c = _libc_gettext(&_sys_errs[_sys_index[err]]);
57 	else
58 		c = _libc_gettext("Unknown error");
59 
60 	if (s && *s) {
61 		(void) write(2, s, strlen(s));
62 		(void) write(2, ": ", 2);
63 	}
64 	(void) write(2, c, strlen(c));
65 	(void) write(2, "\n", 1);
66 }
67