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/* $NetBSD: strerror_r.c,v 1.3 2013/08/19 13:03:12 joerg Exp $ */
/*
* Copyright (c) 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: strerror_r.c,v 1.3 2013/08/19 13:03:12 joerg Exp $");
#include "namespace.h"
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#ifdef NLS
#include <limits.h>
#include <nl_types.h>
#define __SETLOCALE_SOURCE__
#include <locale.h>
#include "setlocale_local.h"
#endif
#include "extern.h"
__weak_alias(strerror_r, _strerror_r)
int
_strerror_lr(int num, char *buf, size_t buflen, locale_t loc)
{
#define UPREFIX "Unknown error: %u"
unsigned int errnum = num;
int retval = 0;
size_t slen;
#ifdef NLS
int saved_errno = errno;
nl_catd catd;
catd = catopen_l("libc", NL_CAT_LOCALE, loc);
#endif
_DIAGASSERT(buf != NULL);
if (errnum < (unsigned int) sys_nerr) {
#ifdef NLS
slen = strlcpy(buf, catgets(catd, 1, (int)errnum,
sys_errlist[errnum]), buflen);
#else
slen = strlcpy(buf, sys_errlist[errnum], buflen);
#endif
} else {
#ifdef NLS
slen = snprintf_l(buf, buflen, loc,
catgets(catd, 1, 0xffff, UPREFIX), errnum);
#else
slen = snprintf(buf, buflen, UPREFIX, errnum);
#endif
retval = EINVAL;
}
if (slen >= buflen)
retval = ERANGE;
#ifdef NLS
catclose(catd);
errno = saved_errno;
#endif
return retval;
}
int
strerror_r(int num, char *buf, size_t buflen)
{
#ifdef NLS
return _strerror_lr(num, buf, buflen, _current_locale());
#else
return _strerror_lr(num, buf, buflen, NULL);
#endif
}
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