1 /* $OpenBSD: getname.c,v 1.7 2003/06/03 02:56:11 millert Exp $ */
2 /* $NetBSD: getname.c,v 1.4 1996/06/08 19:48:23 christos Exp $ */
3
4 /*
5 * Copyright (c) 1980, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #ifndef lint
34 #if 0
35 static const char sccsid[] = "@(#)getname.c 8.1 (Berkeley) 6/6/93";
36 #else
37 static const char rcsid[] = "$OpenBSD: getname.c,v 1.7 2003/06/03 02:56:11 millert Exp $";
38 #endif
39 #endif /* not lint */
40
41 #include "rcv.h"
42 #include <pwd.h>
43 #include "extern.h"
44
45 /* Getname / getuserid for those with hashed passwd data base. */
46
47 /*
48 * Search the passwd file for a uid. Return name on success, NULL on failure
49 */
50 char *
getname(uid_t uid)51 getname(uid_t uid)
52 {
53 struct passwd *pw;
54
55 if ((pw = getpwuid(uid)) == NULL)
56 return(NULL);
57 return(pw->pw_name);
58 }
59
60 /*
61 * Convert the passed name to a user id and return it. Return -1
62 * on error.
63 */
64 uid_t
getuserid(char * name)65 getuserid(char *name)
66 {
67 struct passwd *pw;
68
69 if ((pw = getpwnam(name)) == NULL)
70 return(UID_MAX);
71 return(pw->pw_uid);
72 }
73