xref: /titanic_44/usr/src/cmd/bnu/gwd.c (revision a60349c89adffc0902b2353230891d8e7f2b24d9)
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 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
32 
33 #include "uucp.h"
34 
35 /*
36  *	gwd - get working directory
37  *	Uid and Euid are global
38  *	return
39  *		0 - ok
40  *	 	FAIL - failed
41  */
42 
43 int
44 gwd(wkdir)
45 char *wkdir;
46 {
47 	FILE *fp;
48 	char cmd[BUFSIZ];
49 
50 	*wkdir = '\0';
51 	(void) sprintf(cmd, "%s pwd 2>&-", PATH);
52 
53 #ifndef V7
54 	(void) setuid(Uid);
55 	fp = popen(cmd, "r");
56 	(void) setuid(Euid);
57 #else
58 	fp = popen(cmd, "r");
59 #endif
60 
61 	if (fp == NULL)
62 		return(FAIL);
63 
64 	if (fgets(wkdir, MAXFULLNAME, fp) == NULL) {
65 		(void) pclose(fp);
66 		return(FAIL);
67 	}
68 	if (wkdir[strlen(wkdir)-1] == '\n')
69 		wkdir[strlen(wkdir)-1] = '\0';
70 	(void) pclose(fp);
71 	return(0);
72 }
73 
74 
75 /*
76  * uidstat(file, &statbuf)
77  * This is a stat call with the uid set from Euid to Uid.
78  * Used from uucp.c and uux.c to permit file copies
79  * from directories that may not be searchable by other.
80  * return:
81  *	same as stat()
82  */
83 
84 int
85 uidstat(file, buf)
86 char *file;
87 struct stat *buf;
88 {
89 #ifndef V7
90 	int ret;
91 
92 	(void) setuid(Uid);
93 	ret = stat(file, buf);
94 	(void) setuid(Euid);
95 	return(ret);
96 #else /* V7 */
97 	int	ret;
98 
99 	if (vfork() == 0) {
100 		(void) setuid(Uid);
101 		_exit(stat(file, buf));
102 	}
103 	wait(&ret);
104 	return(ret);
105 #endif /* V7 */
106 }
107