1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1987, 1993, 1994
5 *	The Regents of the University of California.  All rights reserved.
6 * Copyright (c) 2002 Networks Associates Technology, Inc.
7 * All rights reserved.
8 *
9 * Portions of this software were developed for the FreeBSD Project by
10 * ThinkSec AS and NAI Labs, the Security Research Division of Network
11 * Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
12 * ("CBOSS"), as part of the DARPA CHATS research program.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 *    notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 *    notice, this list of conditions and the following disclaimer in the
21 *    documentation and/or other materials provided with the distribution.
22 * 3. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 */
38
39#if 0
40#ifndef lint
41static const char copyright[] =
42"@(#) Copyright (c) 1987, 1993, 1994\n\
43	The Regents of the University of California.  All rights reserved.\n";
44#endif /* not lint */
45
46#ifndef lint
47static char sccsid[] = "@(#)vipw.c	8.3 (Berkeley) 4/2/94";
48#endif /* not lint */
49#endif
50#include <sys/cdefs.h>
51__FBSDID("$FreeBSD$");
52
53#include <sys/types.h>
54#include <sys/stat.h>
55
56#include <err.h>
57#include <pwd.h>
58#include <stdio.h>
59#include <stdlib.h>
60#include <string.h>
61#include <unistd.h>
62
63#include <libutil.h>		/* must be after pwd.h */
64
65static void	usage(void);
66
67int
68main(int argc, char *argv[])
69{
70	const char *passwd_dir = NULL;
71	int ch, pfd, tfd;
72	char *line;
73	size_t len;
74
75	while ((ch = getopt(argc, argv, "d:")) != -1)
76		switch (ch) {
77		case 'd':
78			passwd_dir = optarg;
79			break;
80		case '?':
81		default:
82			usage();
83		}
84
85	argc -= optind;
86	argv += optind;
87
88	if (argc != 0)
89		usage();
90
91	if (pw_init(passwd_dir, NULL) == -1)
92		err(1, "pw_init()");
93	if ((pfd = pw_lock()) == -1) {
94		pw_fini();
95		err(1, "pw_lock()");
96	}
97	if ((tfd = pw_tmp(pfd)) == -1) {
98		pw_fini();
99		err(1, "pw_tmp()");
100	}
101	(void)close(tfd);
102	/* Force umask for partial writes made in the edit phase */
103	(void)umask(077);
104
105	for (;;) {
106		switch (pw_edit(0)) {
107		case -1:
108			pw_fini();
109			err(1, "pw_edit()");
110		case 0:
111			pw_fini();
112			errx(0, "no changes made");
113		default:
114			break;
115		}
116		if (pw_mkdb(NULL) == 0) {
117			pw_fini();
118			errx(0, "password list updated");
119		}
120		printf("re-edit the password file? ");
121		fflush(stdout);
122		if ((line = fgetln(stdin, &len)) == NULL) {
123			pw_fini();
124			err(1, "fgetln()");
125		}
126		if (len > 0 && (*line == 'N' || *line == 'n'))
127			break;
128	}
129	pw_fini();
130	exit(0);
131}
132
133static void
134usage(void)
135{
136
137	(void)fprintf(stderr, "usage: vipw [-d directory]\n");
138	exit(1);
139}
140