2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1988, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 * Copyright (c) 2002 Networks Associates Technology, Inc.
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.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
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. All advertising materials mentioning features or use of this software
23 * must display the following acknowledgement:
24 * This product includes software developed by the University of
25 * California, Berkeley and its contributors.
26 * 4. Neither the name of the University nor the names of its contributors
27 * may be used to endorse or promote products derived from this software
28 * without specific prior written permission.
30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
45 static const char copyright[] =
46 "@(#) Copyright (c) 1988, 1993, 1994\n\
47 The Regents of the University of California. All rights reserved.\n";
51 static char sccsid[] = "@(#)chpass.c 8.4 (Berkeley) 4/2/94";
54 #include <sys/cdefs.h>
55 __FBSDID("$FreeBSD$");
57 #include <sys/param.h>
77 static void baduser(void);
78 static void usage(void);
81 main(int argc, char *argv[])
83 enum { NEWSH, LOADENTRY, EDITENTRY, NEWPW, NEWEXP } op;
84 struct passwd lpw, *old_pw, *pw;
87 char *arg = NULL, *cryptpw;
90 struct ypclnt *ypclnt;
91 const char *yp_domain = NULL, *yp_host = NULL;
97 while ((ch = getopt(argc, argv, "a:p:s:e:d:h:loy")) != -1)
99 while ((ch = getopt(argc, argv, "a:p:s:e:")) != -1)
144 if (op == EDITENTRY || op == NEWSH || op == NEWPW || op == NEWEXP) {
146 if ((pw = getpwuid(uid)) == NULL)
147 errx(1, "unknown user: uid %lu",
150 if ((pw = getpwnam(*argv)) == NULL)
151 errx(1, "unknown user: %s", *argv);
152 if (uid != 0 && uid != pw->pw_uid)
156 /* Make a copy for later verification */
157 if ((pw = pw_dup(pw)) == NULL ||
158 (old_pw = pw_dup(pw)) == NULL)
163 if (pw != NULL && (pw->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
164 ypclnt = ypclnt_new(yp_domain, "passwd.byname", yp_host);
165 master_mode = (ypclnt != NULL &&
166 ypclnt_connect(ypclnt) != -1 &&
167 ypclnt_havepasswdd(ypclnt) == 1);
171 master_mode = (uid == 0);
174 /* protect p_shell -- it thinks NULL is /bin/sh */
177 if (p_shell(arg, pw, (ENTRY *)NULL) == -1)
182 if (uid) /* only root can change expire */
184 if (p_expire(arg, pw, (ENTRY *)NULL) == -1)
188 if (op == LOADENTRY) {
193 if (!__pw_scan(arg, pw, _PWSCAN_WARN|_PWSCAN_MASTER))
201 if (strchr(arg, ':'))
202 errx(1, "invalid format for password");
206 if (op == EDITENTRY) {
208 * We don't really need pw_*() here, but pw_edit() (used
209 * by edit()) is just too useful...
211 if (pw_init(NULL, NULL))
213 if ((tfd = pw_tmp(-1)) == -1) {
218 pw = edit(pw_tempname(), old_pw);
223 * pw_equal does not check for crypted passwords, so we
224 * should do it explicitly
226 if (pw_equal(old_pw, pw) &&
227 strcmp(old_pw->pw_passwd, pw->pw_passwd) == 0)
228 errx(0, "user information unchanged");
231 if (old_pw && !master_mode) {
232 password = getpass("Password: ");
233 cryptpw = crypt(password, old_pw->pw_passwd);
234 if (cryptpw == NULL || strcmp(cryptpw, old_pw->pw_passwd) != 0)
241 pw->pw_fields |= (old_pw->pw_fields & _PWF_SOURCE);
242 switch (pw->pw_fields & _PWF_SOURCE) {
245 ypclnt = ypclnt_new(yp_domain, "passwd.byname", yp_host);
246 if (ypclnt == NULL) {
247 warnx("ypclnt_new failed");
250 if (ypclnt_connect(ypclnt) == -1 ||
251 ypclnt_passwd(ypclnt, pw, password) == -1) {
252 warnx("%s", ypclnt->error);
257 errx(0, "NIS user information updated");
261 if (pw_init(NULL, NULL))
263 if ((pfd = pw_lock()) == -1) {
267 if ((tfd = pw_tmp(-1)) == -1) {
271 if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
275 if (pw_mkdb(pw->pw_name) == -1) {
280 errx(0, "user information updated");
283 errx(1, "unsupported passwd source");
291 errx(1, "%s", strerror(EACCES));
298 (void)fprintf(stderr,
299 "usage: chpass%s %s [user]\n",
301 " [-d domain] [-h host]",
305 "[-a list] [-p encpass] [-s shell] [-e mmm dd yy]");