1/*
2 * Copyright (c) 1987, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 * Copyright (c) 2002 Networks Associates Technology, Inc.
5 * All rights reserved.
6 *
7 * Portions of this software were developed for the FreeBSD Project by
8 * ThinkSec AS and NAI Labs, the Security Research Division of Network
9 * Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
10 * ("CBOSS"), as part of the DARPA CHATS research program.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#if 0
38#ifndef lint
39static const char copyright[] =
40"@(#) Copyright (c) 1987, 1993, 1994\n\
41	The Regents of the University of California.  All rights reserved.\n";
42#endif /* not lint */
43
44#ifndef lint
45static char sccsid[] = "@(#)vipw.c	8.3 (Berkeley) 4/2/94";
46#endif /* not lint */
47#endif
48#include <sys/cdefs.h>
49__FBSDID("$FreeBSD: releng/11.0/usr.sbin/vipw/vipw.c 133249 2004-08-07 04:28:56Z imp $");
50
51#include <sys/types.h>
52#include <sys/stat.h>
53
54#include <err.h>
55#include <pwd.h>
56#include <stdio.h>
57#include <stdlib.h>
58#include <string.h>
59#include <unistd.h>
60
61#include <libutil.h>		/* must be after pwd.h */
62
63static void	usage(void);
64
65int
66main(int argc, char *argv[])
67{
68	const char *passwd_dir = NULL;
69	int ch, pfd, tfd;
70	char *line;
71	size_t len;
72
73	while ((ch = getopt(argc, argv, "d:")) != -1)
74		switch (ch) {
75		case 'd':
76			passwd_dir = optarg;
77			break;
78		case '?':
79		default:
80			usage();
81		}
82
83	argc -= optind;
84	argv += optind;
85
86	if (argc != 0)
87		usage();
88
89	if (pw_init(passwd_dir, NULL) == -1)
90		err(1, "pw_init()");
91	if ((pfd = pw_lock()) == -1) {
92		pw_fini();
93		err(1, "pw_lock()");
94	}
95	if ((tfd = pw_tmp(pfd)) == -1) {
96		pw_fini();
97		err(1, "pw_tmp()");
98	}
99	(void)close(tfd);
100	/* Force umask for partial writes made in the edit phase */
101	(void)umask(077);
102
103	for (;;) {
104		switch (pw_edit(0)) {
105		case -1:
106			pw_fini();
107			err(1, "pw_edit()");
108		case 0:
109			pw_fini();
110			errx(0, "no changes made");
111		default:
112			break;
113		}
114		if (pw_mkdb(NULL) == 0) {
115			pw_fini();
116			errx(0, "password list updated");
117		}
118		printf("re-edit the password file? ");
119		fflush(stdout);
120		if ((line = fgetln(stdin, &len)) == NULL) {
121			pw_fini();
122			err(1, "fgetln()");
123		}
124		if (len > 0 && (*line == 'N' || *line == 'n'))
125			break;
126	}
127	pw_fini();
128	exit(0);
129}
130
131static void
132usage(void)
133{
134
135	(void)fprintf(stderr, "usage: vipw [-d directory]\n");
136	exit(1);
137}
138