xref: /netbsd-src/lib/libc/string/strerror.c (revision 21e37cc72a480a47828990a439cde7ac9ffaf0c6)
1 /*	$NetBSD: strerror.c,v 1.12 2003/08/07 16:43:51 agc Exp $	*/
2 
3 /*
4  * Copyright (c) 1988 Regents of the University of California.
5  * 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
35 static char *sccsid = "@(#)strerror.c	5.6 (Berkeley) 5/4/91";
36 #else
37 __RCSID("$NetBSD: strerror.c,v 1.12 2003/08/07 16:43:51 agc Exp $");
38 #endif
39 #endif /* LIBC_SCCS and not lint */
40 
41 #include <string.h>
42 #include <limits.h>
43 #include "extern.h"
44 
45 /*
46  * Since perror() is not allowed to change the contents of strerror()'s
47  * static buffer, both functions supply their own buffers to the
48  * internal function __strerror().
49  */
50 
51 __aconst char *
52 strerror(num)
53 	int num;
54 {
55 	static char buf[NL_TEXTMAX];
56 
57 	/* LINTED const castaway */
58 	return (__aconst char *)__strerror(num, buf, sizeof(buf));
59 }
60