xref: /openbsd/lib/libc/string/strerror_l.c (revision 09467b48)
1 /*	$OpenBSD: strerror_l.c,v 1.1 2017/09/05 03:16:13 schwarze Exp $ */
2 /*
3  * Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <limits.h>
19 #include <string.h>
20 
21 #include "thread_private.h"
22 
23 char *
24 strerror_l(int errnum, locale_t locale)
25 {
26 	static char sel_buf[NL_TEXTMAX];
27 	_THREAD_PRIVATE_KEY(strerror_l);
28 	char *p = _THREAD_PRIVATE(strerror_l, sel_buf, NULL);
29 
30 	return p == NULL ? "no buffer available in strerror_l" :
31 	    strerror_r(errnum, p, sizeof(sel_buf)) ?
32 	    "strerror_r failure" : p;
33 }
34