xref: /onnv-gate/usr/src/lib/libc/port/gen/getwd.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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
280Sstevel@tonic-gate 
29*6812Sraf #include "lint.h"
300Sstevel@tonic-gate #include <sys/types.h>
310Sstevel@tonic-gate #include <sys/param.h>
320Sstevel@tonic-gate #include <errno.h>
330Sstevel@tonic-gate #include <unistd.h>
340Sstevel@tonic-gate #include <string.h>
350Sstevel@tonic-gate #include <stdlib.h>
360Sstevel@tonic-gate #include <limits.h>
370Sstevel@tonic-gate 
380Sstevel@tonic-gate char *
getwd(char * pathname)390Sstevel@tonic-gate getwd(char *pathname)
400Sstevel@tonic-gate {
410Sstevel@tonic-gate 	char *c;
420Sstevel@tonic-gate 	long val;
430Sstevel@tonic-gate 
440Sstevel@tonic-gate 
450Sstevel@tonic-gate 	if ((val = pathconf(".", _PC_PATH_MAX)) == -1)
460Sstevel@tonic-gate 		val = MAXPATHLEN + 1;
470Sstevel@tonic-gate 
480Sstevel@tonic-gate 	if ((c = getcwd(pathname, val)) == NULL) {
490Sstevel@tonic-gate 		if (errno == EACCES)
500Sstevel@tonic-gate 			(void) strcpy(pathname,
51*6812Sraf 			    "getwd: a parent directory cannot be read");
520Sstevel@tonic-gate 		else if (errno == ERANGE)
530Sstevel@tonic-gate 			(void) strcpy(pathname, "getwd: buffer too small");
540Sstevel@tonic-gate 		else
550Sstevel@tonic-gate 			(void) strcpy(pathname, "getwd: failure occurred");
560Sstevel@tonic-gate 		return (0);
570Sstevel@tonic-gate 	}
580Sstevel@tonic-gate 
590Sstevel@tonic-gate 	return (c);
600Sstevel@tonic-gate }
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