dmake: do not set MAKEFLAGS=k
[unleashed/tickless.git] / usr / src / cmd / mailx / getname.c
blob6fbf95a5f1d5efd3f099c2bcfe48688839b1a813
1 /*
2 * CDDL HEADER START
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.
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.
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]
20 * CDDL HEADER END
22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
23 /* All Rights Reserved */
27 * University Copyright- Copyright (c) 1982, 1986, 1988
28 * The Regents of the University of California
29 * All Rights Reserved
31 * University Acknowledgment- Portions of this document are derived from
32 * software developed by the University of California, Berkeley, and its
33 * contributors.
36 #pragma ident "%Z%%M% %I% %E% SMI"
39 * mailx -- a modified version of a University of California at Berkeley
40 * mail program
43 #include "rcv.h"
44 #include <pwd.h>
45 #ifdef preSVr4
46 extern struct passwd *getpwnam();
47 extern struct passwd *getpwuid();
48 #endif
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.
56 int
57 getname(uid_t uid, char namebuf[])
59 struct passwd *pw;
61 if (uid == (uid_t)-1) {
62 endpwent();
63 return(0);
65 setpwent();
66 pw = getpwuid(uid);
67 if (pw) {
68 strcpy(namebuf, pw->pw_name);
69 return(0);
71 return(-1);
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.
79 uid_t
80 getuserid(char name[])
82 struct passwd *pw;
84 if (name == 0) {
85 endpwent();
86 return(0);
88 setpwent();
89 pw = getpwnam(name);
90 return pw ? pw->pw_uid : (uid_t)-1;