xref: /original-bsd/usr.bin/mail/getname.c (revision 7cab520e)
1 /*
2  * Copyright (c) 1980 Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms are permitted
6  * provided that the above copyright notice and this paragraph are
7  * duplicated in all such forms and that any documentation,
8  * advertising materials, and other materials related to such
9  * distribution and use acknowledge that the software was developed
10  * by the University of California, Berkeley.  The name of the
11  * University may not be used to endorse or promote products derived
12  * from this software without specific prior written permission.
13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16  */
17 
18 #ifndef lint
19 static char sccsid[] = "@(#)getname.c	5.6 (Berkeley) 07/07/88";
20 #endif /* not lint */
21 
22 #include <pwd.h>
23 
24 /*
25  * Getname / getuserid for those with
26  * hashed passwd data base).
27  *
28  */
29 
30 #include "rcv.h"
31 
32 /*
33  * Search the passwd file for a uid.  Return name through ref parameter
34  * if found, indicating success with 0 return.  Return -1 on error.
35  */
36 char *
37 getname(uid)
38 {
39 	struct passwd *pw;
40 
41 	if ((pw = getpwuid(uid)) == NULL)
42 		return NOSTR;
43 	return pw->pw_name;
44 }
45 
46 /*
47  * Convert the passed name to a user id and return it.  Return -1
48  * on error.
49  */
50 getuserid(name)
51 	char name[];
52 {
53 	struct passwd *pw;
54 
55 	if ((pw = getpwnam(name)) == NULL)
56 		return -1;
57 	return pw->pw_uid;
58 }
59