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 * 3. 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 * @(#) Copyright (c) 1987, 1993, 1994 The Regents of the University of California. All rights reserved.
37 * @(#)vipw.c 8.3 (Berkeley) 4/2/94
38 * $FreeBSD: src/usr.sbin/vipw/vipw.c,v 1.16 2004/08/07 04:28:56 imp Exp $
39 * $DragonFly: src/usr.sbin/vipw/vipw.c,v 1.5 2005/12/05 01:23:23 swildner Exp $
40 */
41
42 #include <sys/types.h>
43 #include <sys/stat.h>
44
45 #include <err.h>
46 #include <pwd.h>
47 #include <stdio.h>
48 #include <stdlib.h>
49 #include <string.h>
50 #include <unistd.h>
51
52 #include <libutil.h> /* must be after pwd.h */
53
54 static void usage(void);
55
56 int
main(int argc,char * argv[])57 main(int argc, char *argv[])
58 {
59 const char *passwd_dir = NULL;
60 int ch, pfd, tfd;
61 char *line;
62 size_t len;
63
64 while ((ch = getopt(argc, argv, "d:")) != -1)
65 switch (ch) {
66 case 'd':
67 passwd_dir = optarg;
68 break;
69 case '?':
70 default:
71 usage();
72 }
73
74 argc -= optind;
75 argv += optind;
76
77 if (argc != 0)
78 usage();
79
80 if (pw_init(passwd_dir, NULL) == -1)
81 err(1, "pw_init()");
82 if ((pfd = pw_lock()) == -1) {
83 pw_fini();
84 err(1, "pw_lock()");
85 }
86 if ((tfd = pw_tmp(pfd)) == -1) {
87 pw_fini();
88 err(1, "pw_tmp()");
89 }
90 close(tfd);
91 /* Force umask for partial writes made in the edit phase */
92 umask(077);
93
94 for (;;) {
95 switch (pw_edit(0)) {
96 case -1:
97 pw_fini();
98 err(1, "pw_edit()");
99 case 0:
100 pw_fini();
101 errx(0, "no changes made");
102 default:
103 break;
104 }
105 if (pw_mkdb(NULL) == 0) {
106 pw_fini();
107 errx(0, "password list updated");
108 }
109 printf("re-edit the password file? ");
110 fflush(stdout);
111 if ((line = fgetln(stdin, &len)) == NULL) {
112 pw_fini();
113 err(1, "fgetln()");
114 }
115 if (len > 0 && (*line == 'N' || *line == 'n'))
116 break;
117 }
118 pw_fini();
119 exit(0);
120 }
121
122 static void
usage(void)123 usage(void)
124 {
125 fprintf(stderr, "usage: vipw [ -d directory ]\n");
126 exit(1);
127 }
128