104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/* $NetBSD: __strerror.c,v 1.17 2001/08/24 00:11:54 yamt 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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.c,v 1.17 2001/08/24 00:11:54 yamt 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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/*
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* Since perror() is not allowed to change the contents of strerror()'s
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* static buffer, both functions supply their own buffers to the
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* internal function __strerror().
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*/
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const char *
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__strerror(num, buf, buflen)
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int num;
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char *buf;
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size_t buflen;
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{
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#define UPREFIX "Unknown error: %u"
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unsigned int errnum;
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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", 0);
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#endif
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_DIAGASSERT(buf != NULL);
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errnum = num; /* convert to unsigned */
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if (errnum < sys_nerr) {
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#ifdef NLS
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(void)strncpy(buf, catgets(catd, 1, (int)errnum,
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sys_errlist[errnum]), buflen);
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buf[buflen - 1] = '\0';
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#else
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return(sys_errlist[errnum]);
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#endif
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} else {
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#ifdef NLS
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snprintf(buf, buflen,
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catgets(catd, 1, 0xffff, UPREFIX), errnum);
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#else
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snprintf(buf, buflen, UPREFIX, errnum);
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#endif
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}
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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 buf;
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}
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