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
43 static const char copyright[] =
44 "@(#) Copyright (c) 1988, 1993, 1994\n\
45 The Regents of the University of California. All rights reserved.\n";
49 static char sccsid[] = "@(#)chpass.c 8.4 (Berkeley) 4/2/94";
52 #include <sys/cdefs.h>
53 __FBSDID("$FreeBSD$");
55 #include <sys/param.h>
75 static void baduser(void);
76 static void usage(void);
79 main(int argc, char *argv[])
81 enum { NEWSH, LOADENTRY, EDITENTRY, NEWPW, NEWEXP } op;
82 struct passwd lpw, *old_pw, *pw;
88 struct ypclnt *ypclnt;
89 const char *yp_domain = NULL, *yp_host = NULL;
95 while ((ch = getopt(argc, argv, "a:p:s:e:d:h:loy")) != -1)
97 while ((ch = getopt(argc, argv, "a:p:s:e:")) != -1)
142 if (op == EDITENTRY || op == NEWSH || op == NEWPW || op == NEWEXP) {
144 if ((pw = getpwuid(uid)) == NULL)
145 errx(1, "unknown user: uid %lu",
148 if ((pw = getpwnam(*argv)) == NULL)
149 errx(1, "unknown user: %s", *argv);
150 if (uid != 0 && uid != pw->pw_uid)
154 /* Make a copy for later verification */
155 if ((pw = pw_dup(pw)) == NULL ||
156 (old_pw = pw_dup(pw)) == NULL)
161 if (pw != NULL && (pw->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
162 ypclnt = ypclnt_new(yp_domain, "passwd.byname", yp_host);
163 master_mode = (ypclnt != NULL &&
164 ypclnt_connect(ypclnt) != -1 &&
165 ypclnt_havepasswdd(ypclnt) == 1);
169 master_mode = (uid == 0);
172 /* protect p_shell -- it thinks NULL is /bin/sh */
175 if (p_shell(arg, pw, (ENTRY *)NULL) == -1)
180 if (uid) /* only root can change expire */
182 if (p_expire(arg, pw, (ENTRY *)NULL) == -1)
186 if (op == LOADENTRY) {
191 if (!__pw_scan(arg, pw, _PWSCAN_WARN|_PWSCAN_MASTER))
199 if (strchr(arg, ':'))
200 errx(1, "invalid format for password");
204 if (op == EDITENTRY) {
206 * We don't really need pw_*() here, but pw_edit() (used
207 * by edit()) is just too useful...
209 if (pw_init(NULL, NULL))
211 if ((tfd = pw_tmp(-1)) == -1) {
216 pw = edit(pw_tempname(), old_pw);
221 * pw_equal does not check for crypted passwords, so we
222 * should do it explicitly
224 if (pw_equal(old_pw, pw) &&
225 strcmp(old_pw->pw_passwd, pw->pw_passwd) == 0)
226 errx(0, "user information unchanged");
229 if (old_pw && !master_mode) {
230 password = getpass("Password: ");
231 if (strcmp(crypt(password, old_pw->pw_passwd),
232 old_pw->pw_passwd) != 0)
239 pw->pw_fields |= (old_pw->pw_fields & _PWF_SOURCE);
240 switch (pw->pw_fields & _PWF_SOURCE) {
243 ypclnt = ypclnt_new(yp_domain, "passwd.byname", yp_host);
244 if (ypclnt == NULL ||
245 ypclnt_connect(ypclnt) == -1 ||
246 ypclnt_passwd(ypclnt, pw, password) == -1) {
247 warnx("%s", ypclnt->error);
252 errx(0, "NIS user information updated");
256 if (pw_init(NULL, NULL))
258 if ((pfd = pw_lock()) == -1) {
262 if ((tfd = pw_tmp(-1)) == -1) {
266 if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
270 if (pw_mkdb(pw->pw_name) == -1) {
275 errx(0, "user information updated");
278 errx(1, "unsupported passwd source");
286 errx(1, "%s", strerror(EACCES));
293 (void)fprintf(stderr,
294 "usage: chpass%s %s [user]\n",
296 " [-d domain] [-h host]",
300 "[-a list] [-p encpass] [-s shell] [-e mmm dd yy]");