2 * Copyright (c) 1988, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 2002 Networks Associates Technology, Inc.
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.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
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. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the University of
23 * California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * @(#) Copyright (c) 1988, 1993, 1994 The Regents of the University of California. All rights reserved.
41 * @(#)chpass.c 8.4 (Berkeley) 4/2/94
42 * $FreeBSD: src/usr.bin/chpass/chpass.c,v 1.28 2006/09/25 15:06:24 marck Exp $
43 * $DragonFly: src/usr.bin/chpass/chpass.c,v 1.4 2003/11/03 19:31:28 eirikn Exp $
46 #include <sys/param.h>
66 static void baduser(void);
67 static void usage(void);
70 main(int argc, char **argv)
72 enum { NEWSH, LOADENTRY, EDITENTRY, NEWPW, NEWEXP } op;
73 struct passwd lpw, *old_pw, *pw;
80 struct ypclnt *ypclnt;
81 const char *yp_domain = NULL, *yp_host = NULL;
87 while ((ch = getopt(argc, argv, "a:p:s:e:d:h:loy")) != -1)
89 while ((ch = getopt(argc, argv, "a:p:s:e:")) != -1)
134 if (op == EDITENTRY || op == NEWSH || op == NEWPW || op == NEWEXP) {
136 if ((pw = getpwuid(uid)) == NULL)
137 errx(1, "unknown user: uid %lu",
140 if ((pw = getpwnam(*argv)) == NULL)
141 errx(1, "unknown user: %s", *argv);
142 if (uid != 0 && uid != pw->pw_uid)
146 /* Make a copy for later verification */
147 if ((pw = pw_dup(pw)) == NULL ||
148 (old_pw = pw_dup(pw)) == NULL)
153 if (pw != NULL && (pw->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
154 ypclnt = ypclnt_new(yp_domain, "passwd.byname", yp_host);
155 master_mode = (ypclnt != NULL &&
156 ypclnt_connect(ypclnt) != -1 &&
157 ypclnt_havepasswdd(ypclnt) == 1);
161 master_mode = (uid == 0);
164 /* protect p_shell -- it thinks NULL is /bin/sh */
167 if (p_shell(arg, pw, NULL) == -1)
172 if (uid) /* only root can change expire */
174 if (p_expire(arg, pw, NULL) == -1)
178 if (op == LOADENTRY) {
183 if (!__pw_scan(arg, pw, _PWSCAN_WARN|_PWSCAN_MASTER))
191 if (strchr(arg, ':'))
192 errx(1, "invalid format for password");
196 if (op == EDITENTRY) {
198 * We don't really need pw_*() here, but pw_edit() (used
199 * by edit()) is just too useful...
201 if (pw_init(NULL, NULL))
203 if ((tfd = pw_tmp(-1)) == -1) {
208 pw = edit(pw_tempname(), old_pw);
213 * pw_equal does not check for crypted passwords, so we
214 * should do it explicitly
216 if (pw_equal(old_pw, pw) &&
217 strcmp(old_pw->pw_passwd, pw->pw_passwd) == 0)
218 errx(0, "user information unchanged");
221 if (old_pw && !master_mode) {
222 password = getpass("Password: ");
223 cryptpw = crypt(password, old_pw->pw_passwd);
224 if (cryptpw == NULL || strcmp(cryptpw, old_pw->pw_passwd) != 0)
231 pw->pw_fields |= (old_pw->pw_fields & _PWF_SOURCE);
232 switch (pw->pw_fields & _PWF_SOURCE) {
235 ypclnt = ypclnt_new(yp_domain, "passwd.byname", yp_host);
236 if (ypclnt == NULL ||
237 ypclnt_connect(ypclnt) == -1 ||
238 ypclnt_passwd(ypclnt, pw, password) == -1) {
239 warnx("%s", ypclnt->error);
244 errx(0, "NIS user information updated");
248 if (pw_init(NULL, NULL))
250 if ((pfd = pw_lock()) == -1) {
254 if ((tfd = pw_tmp(-1)) == -1) {
258 if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
262 if (pw_mkdb(pw->pw_name) == -1) {
267 errx(0, "user information updated");
270 errx(1, "unsupported passwd source");
278 errx(1, "%s", strerror(EACCES));
286 "usage: chpass%s %s [user]\n",
288 " [-d domain] [-h host]",
292 "[-a list] [-p encpass] [-s shell] [-e mmm dd yy]");