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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
23 /* All Rights Reserved */
24
25
26 /*
27 * University Copyright- Copyright (c) 1982, 1986, 1988
28 * The Regents of the University of California
29 * All Rights Reserved
30 *
31 * University Acknowledgment- Portions of this document are derived from
32 * software developed by the University of California, Berkeley, and its
33 * contributors.
34 */
35
36 /*
37 * mailx -- a modified version of a University of California at Berkeley
38 * mail program
39 */
40
41 #include "rcv.h"
42 #include <pwd.h>
43 #ifdef preSVr4
44 extern struct passwd *getpwnam();
45 extern struct passwd *getpwuid();
46 #endif
47
48 /*
49 * Search the passwd file for a uid. Return name through ref parameter
50 * if found, indicating success with 0 return. Return -1 on error.
51 * If -1 is passed as the user id, close the passwd file.
52 */
53
54 int
getname(uid_t uid,char namebuf[])55 getname(uid_t uid, char namebuf[])
56 {
57 struct passwd *pw;
58
59 if (uid == (uid_t)-1) {
60 endpwent();
61 return(0);
62 }
63 setpwent();
64 pw = getpwuid(uid);
65 if (pw) {
66 strcpy(namebuf, pw->pw_name);
67 return(0);
68 }
69 return(-1);
70 }
71
72 /*
73 * Convert the passed name to a user id and return it. Return -1
74 * on error. Iff the name passed is 0, close the passwd file.
75 */
76
77 uid_t
getuserid(char name[])78 getuserid(char name[])
79 {
80 struct passwd *pw;
81
82 if (name == 0) {
83 endpwent();
84 return(0);
85 }
86 setpwent();
87 pw = getpwnam(name);
88 return pw ? pw->pw_uid : (uid_t)-1;
89 }
90