islocal.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
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#pragma ident	"%Z%%M%	%I%	%E% SMI"
26
27#include <sys/param.h>
28#include "mail.h"
29
30/*
31 * islocal (char *user, uid_t *puid) - see if user exists on this system
32 */
33islocal(user, puid)
34char *user;
35uid_t *puid;
36{
37	char	fname[MAXPATHLEN];
38	struct stat statb;
39	struct passwd *pwd_ptr;
40
41	/* Check for existing mailfile first */
42	(void) snprintf(fname, sizeof (fname), "%s%s", maildir, user);
43	if (stat(fname, &statb) == 0) {
44		*puid = statb.st_uid;
45		return (TRUE);
46	}
47
48	/* If no existing mailfile, check passwd file */
49	setpwent();
50	if ((pwd_ptr = getpwnam(user)) == NULL) {
51		return (FALSE);
52	}
53	*puid = pwd_ptr->pw_uid;
54	return (TRUE);
55}
56