1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
23*0Sstevel@tonic-gate /* All Rights Reserved */
24*0Sstevel@tonic-gate
25*0Sstevel@tonic-gate
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate * Copyright (c) 1999 by Sun Microsystems, Inc.
28*0Sstevel@tonic-gate * All rights reserved.
29*0Sstevel@tonic-gate */
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate #include <sys/types.h> /* needed by stat.h */
34*0Sstevel@tonic-gate #include <sys/stat.h> /* stat */
35*0Sstevel@tonic-gate #include <stdio.h> /* NULL */
36*0Sstevel@tonic-gate #include <string.h> /* string functions */
37*0Sstevel@tonic-gate #include <stdlib.h>
38*0Sstevel@tonic-gate
39*0Sstevel@tonic-gate /*
40*0Sstevel@tonic-gate * if the ksh PWD environment variable matches the current
41*0Sstevel@tonic-gate * working directory, don't call getwd()
42*0Sstevel@tonic-gate */
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate char *
mygetwd(char * dir)45*0Sstevel@tonic-gate mygetwd(char *dir)
46*0Sstevel@tonic-gate {
47*0Sstevel@tonic-gate char *pwd; /* PWD environment variable value */
48*0Sstevel@tonic-gate struct stat d_sb; /* current directory status */
49*0Sstevel@tonic-gate struct stat tmp_sb; /* temporary stat buffer */
50*0Sstevel@tonic-gate char *getwd();
51*0Sstevel@tonic-gate
52*0Sstevel@tonic-gate /* get the current directory's status */
53*0Sstevel@tonic-gate if (stat(".", &d_sb) < 0) {
54*0Sstevel@tonic-gate return (NULL);
55*0Sstevel@tonic-gate }
56*0Sstevel@tonic-gate /* use $PWD if it matches this directory */
57*0Sstevel@tonic-gate if ((pwd = getenv("PWD")) != NULL && *pwd != '\0' &&
58*0Sstevel@tonic-gate stat(pwd, &tmp_sb) == 0 &&
59*0Sstevel@tonic-gate d_sb.st_ino == tmp_sb.st_ino && d_sb.st_dev == tmp_sb.st_dev) {
60*0Sstevel@tonic-gate (void) strcpy(dir, pwd);
61*0Sstevel@tonic-gate return (pwd);
62*0Sstevel@tonic-gate }
63*0Sstevel@tonic-gate return (getwd(dir));
64*0Sstevel@tonic-gate }
65