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
41 static 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
47 static char sccsid[] = "@(#)vipw.c 8.3 (Berkeley) 4/2/94";
48 #endif /* not lint */
49 #endif
50 #include <sys/cdefs.h>
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
63 static void usage(void);
64
65 int
main(int argc,char * argv[])66 main(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
131 static void
usage(void)132 usage(void)
133 {
134
135 (void)fprintf(stderr, "usage: vipw [-d directory]\n");
136 exit(1);
137 }
138