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#pragma ident	"%Z%%M%	%I%	%E% SMI"
37
38/*
39 * mailx -- a modified version of a University of California at Berkeley
40 *	mail program
41 */
42
43#include "rcv.h"
44#include <pwd.h>
45#ifdef preSVr4
46extern struct passwd *getpwnam();
47extern struct passwd *getpwuid();
48#endif
49
50/*
51 * Search the passwd file for a uid.  Return name through ref parameter
52 * if found, indicating success with 0 return.  Return -1 on error.
53 * If -1 is passed as the user id, close the passwd file.
54 */
55
56int
57getname(uid_t uid, char namebuf[])
58{
59	struct passwd *pw;
60
61	if (uid == (uid_t)-1) {
62		endpwent();
63		return(0);
64	}
65	setpwent();
66	pw = getpwuid(uid);
67	if (pw) {
68		strcpy(namebuf, pw->pw_name);
69		return(0);
70	}
71	return(-1);
72}
73
74/*
75 * Convert the passed name to a user id and return it.  Return -1
76 * on error.  Iff the name passed is 0, close the passwd file.
77 */
78
79uid_t
80getuserid(char name[])
81{
82	struct passwd *pw;
83
84	if (name == 0) {
85		endpwent();
86		return(0);
87	}
88	setpwent();
89	pw = getpwnam(name);
90	return pw ? pw->pw_uid : (uid_t)-1;
91}
92