xref: /onnv-gate/usr/src/lib/libc/port/gen/strerror.c (revision 6812:febeba71273d)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*6812Sraf  * Common Development and Distribution License (the "License").
6*6812Sraf  * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate  *
80Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate  * See the License for the specific language governing permissions
110Sstevel@tonic-gate  * and limitations under the License.
120Sstevel@tonic-gate  *
130Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate  *
190Sstevel@tonic-gate  * CDDL HEADER END
200Sstevel@tonic-gate  */
21*6812Sraf 
220Sstevel@tonic-gate /*
23*6812Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate  * Use is subject to license terms.
250Sstevel@tonic-gate  */
260Sstevel@tonic-gate 
270Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
280Sstevel@tonic-gate /*	  All Rights Reserved  	*/
290Sstevel@tonic-gate 
30*6812Sraf #pragma ident	"%Z%%M%	%I%	%E% SMI"
310Sstevel@tonic-gate 
32*6812Sraf #include "lint.h"
330Sstevel@tonic-gate #include "_libc_gettext.h"
340Sstevel@tonic-gate #include <string.h>
350Sstevel@tonic-gate #include <sys/types.h>
360Sstevel@tonic-gate #include <errno.h>
370Sstevel@tonic-gate 
380Sstevel@tonic-gate extern const char _sys_errs[];
390Sstevel@tonic-gate extern const int _sys_index[];
400Sstevel@tonic-gate extern int _sys_num_err;
410Sstevel@tonic-gate 
420Sstevel@tonic-gate char *
strerror(int errnum)43*6812Sraf strerror(int errnum)
440Sstevel@tonic-gate {
450Sstevel@tonic-gate 	if (errnum < _sys_num_err && errnum >= 0)
460Sstevel@tonic-gate 		return (_libc_gettext((char *)&_sys_errs[_sys_index[errnum]]));
470Sstevel@tonic-gate 
480Sstevel@tonic-gate 	errno = EINVAL;
490Sstevel@tonic-gate 	return (_libc_gettext("Unknown error"));
500Sstevel@tonic-gate }
510Sstevel@tonic-gate 
520Sstevel@tonic-gate /*
530Sstevel@tonic-gate  * Implemented strerror_r in Solaris 10 to comply with SUSv3 2001.
540Sstevel@tonic-gate  */
550Sstevel@tonic-gate int
strerror_r(int errnum,char * strerrbuf,size_t buflen)56*6812Sraf strerror_r(int errnum, char *strerrbuf, size_t buflen)
570Sstevel@tonic-gate {
580Sstevel@tonic-gate 	char *buf;
590Sstevel@tonic-gate 	int ret = 0;
600Sstevel@tonic-gate 
610Sstevel@tonic-gate 	if (errnum < _sys_num_err && errnum >= 0) {
620Sstevel@tonic-gate 		buf = _libc_gettext((char *)&_sys_errs[_sys_index[errnum]]);
630Sstevel@tonic-gate 	} else {
640Sstevel@tonic-gate 		buf = _libc_gettext("Unknown error");
650Sstevel@tonic-gate 		ret = errno = EINVAL;
660Sstevel@tonic-gate 	}
670Sstevel@tonic-gate 
680Sstevel@tonic-gate 	/*
690Sstevel@tonic-gate 	 * At compile time, there is no way to determine the max size of
700Sstevel@tonic-gate 	 * language-dependent error message.
710Sstevel@tonic-gate 	 */
720Sstevel@tonic-gate 	if (buflen < (strlen(buf) + 1)) {
730Sstevel@tonic-gate 		ret = errno = ERANGE;
740Sstevel@tonic-gate 	} else {
750Sstevel@tonic-gate 		(void) strcpy(strerrbuf, buf);
760Sstevel@tonic-gate 	}
770Sstevel@tonic-gate 
780Sstevel@tonic-gate 	return (ret);
790Sstevel@tonic-gate }
80