104 lines
3 KiB
C
104 lines
3 KiB
C
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/* $NetBSD: strerror_r.c,v 1.2 2005/07/30 15:21:21 christos Exp $ */
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/*
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* Copyright (c) 1988 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char *sccsid = "@(#)strerror.c 5.6 (Berkeley) 5/4/91";
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#else
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__RCSID("$NetBSD: strerror_r.c,v 1.2 2005/07/30 15:21:21 christos Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#ifdef NLS
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#include <limits.h>
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#include <nl_types.h>
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#endif
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#include <assert.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include "extern.h"
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#ifdef _LIBC
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# ifdef __weak_alias
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__weak_alias(strerror_r, _strerror_r)
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# endif
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#endif
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int
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#ifdef _LIBC
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_strerror_r(int num, char *buf, size_t buflen)
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#else
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strerror_r(int num, char *buf, size_t buflen)
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#endif
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{
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#define UPREFIX "Unknown error: %u"
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unsigned int errnum = num;
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int retval = 0;
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size_t slen;
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#ifdef NLS
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int saved_errno = errno;
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nl_catd catd;
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catd = catopen("libc", NL_CAT_LOCALE);
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#endif
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_DIAGASSERT(buf != NULL);
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if (errnum < (unsigned int) sys_nerr) {
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#ifdef NLS
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slen = strlcpy(buf, catgets(catd, 1, (int)errnum,
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sys_errlist[errnum]), buflen);
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#else
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slen = strlcpy(buf, sys_errlist[errnum], buflen);
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#endif
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} else {
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#ifdef NLS
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slen = snprintf(buf, buflen,
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catgets(catd, 1, 0xffff, UPREFIX), errnum);
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#else
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slen = snprintf(buf, buflen, UPREFIX, errnum);
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#endif
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retval = EINVAL;
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}
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if (slen >= buflen)
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retval = ERANGE;
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#ifdef NLS
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catclose(catd);
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errno = saved_errno;
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#endif
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return retval;
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}
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