xref: /titanic_41/usr/src/lib/libc/port/gen/getwd.c (revision fd9cb95cbb2f626355a60efb9d02c5f0a33c10e6)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include "synonyms.h"
30 
31 #include <sys/types.h>
32 #include <sys/param.h>
33 #include <errno.h>
34 #include <unistd.h>
35 #include <string.h>
36 #include <stdlib.h>
37 #include <limits.h>
38 
39 char *
40 getwd(char *pathname)
41 {
42 	char *c;
43 	long val;
44 
45 
46 	if ((val = pathconf(".", _PC_PATH_MAX)) == -1)
47 		val = MAXPATHLEN + 1;
48 
49 	if ((c = getcwd(pathname, val)) == NULL) {
50 		if (errno == EACCES)
51 			(void) strcpy(pathname,
52 				"getwd: a parent directory cannot be read");
53 		else if (errno == ERANGE)
54 			(void) strcpy(pathname, "getwd: buffer too small");
55 		else
56 			(void) strcpy(pathname, "getwd: failure occurred");
57 		return (0);
58 	}
59 
60 	return (c);
61 }
62