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. 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.
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
36 * @(#) Copyright (c) 1988, 1993, 1994 The Regents of the University of California. All rights reserved.
37 * @(#)chpass.c 8.4 (Berkeley) 4/2/94
38 * $FreeBSD: src/usr.bin/chpass/chpass.c,v 1.28 2006/09/25 15:06:24 marck Exp $
41 #include <sys/param.h>
61 static void baduser(void);
62 static void usage(void);
65 main(int argc, char **argv)
67 enum { NEWSH, LOADENTRY, EDITENTRY, NEWPW, NEWEXP } op;
68 struct passwd lpw, *old_pw, *pw;
75 struct ypclnt *ypclnt;
76 const char *yp_domain = NULL, *yp_host = NULL;
82 while ((ch = getopt(argc, argv, "a:p:s:e:d:h:loy")) != -1)
84 while ((ch = getopt(argc, argv, "a:p:s:e:")) != -1)
129 if (op == EDITENTRY || op == NEWSH || op == NEWPW || op == NEWEXP) {
131 if ((pw = getpwuid(uid)) == NULL)
132 errx(1, "unknown user: uid %lu",
135 if ((pw = getpwnam(*argv)) == NULL)
136 errx(1, "unknown user: %s", *argv);
137 if (uid != 0 && uid != pw->pw_uid)
141 /* Make a copy for later verification */
142 if ((pw = pw_dup(pw)) == NULL ||
143 (old_pw = pw_dup(pw)) == NULL)
148 if (pw != NULL && (pw->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
149 ypclnt = ypclnt_new(yp_domain, "passwd.byname", yp_host);
150 master_mode = (ypclnt != NULL &&
151 ypclnt_connect(ypclnt) != -1 &&
152 ypclnt_havepasswdd(ypclnt) == 1);
156 master_mode = (uid == 0);
159 /* protect p_shell -- it thinks NULL is /bin/sh */
162 if (p_shell(arg, pw, NULL) == -1)
167 if (uid) /* only root can change expire */
169 if (p_expire(arg, pw, NULL) == -1)
173 if (op == LOADENTRY) {
178 if (!__pw_scan(arg, pw, _PWSCAN_WARN|_PWSCAN_MASTER))
186 if (strchr(arg, ':'))
187 errx(1, "invalid format for password");
191 if (op == EDITENTRY) {
193 * We don't really need pw_*() here, but pw_edit() (used
194 * by edit()) is just too useful...
196 if (pw_init(NULL, NULL))
198 if ((tfd = pw_tmp(-1)) == -1) {
203 pw = edit(pw_tempname(), old_pw);
208 * pw_equal does not check for crypted passwords, so we
209 * should do it explicitly
211 if (pw_equal(old_pw, pw) &&
212 strcmp(old_pw->pw_passwd, pw->pw_passwd) == 0)
213 errx(0, "user information unchanged");
216 if (old_pw && !master_mode) {
217 password = getpass("Password: ");
218 cryptpw = crypt(password, old_pw->pw_passwd);
219 if (cryptpw == NULL || strcmp(cryptpw, old_pw->pw_passwd) != 0)
226 pw->pw_fields |= (old_pw->pw_fields & _PWF_SOURCE);
227 switch (pw->pw_fields & _PWF_SOURCE) {
230 ypclnt = ypclnt_new(yp_domain, "passwd.byname", yp_host);
231 if (ypclnt == NULL) {
232 warnx("ypclnt_new failed");
235 if (ypclnt_connect(ypclnt) == -1 ||
236 ypclnt_passwd(ypclnt, pw, password) == -1) {
237 warnx("%s", ypclnt->error);
242 errx(0, "NIS user information updated");
246 if (pw_init(NULL, NULL))
248 if ((pfd = pw_lock()) == -1) {
252 if ((tfd = pw_tmp(-1)) == -1) {
256 if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
260 if (pw_mkdb(pw->pw_name) == -1) {
265 errx(0, "user information updated");
268 errx(1, "unsupported passwd source");
276 errx(1, "%s", strerror(EACCES));
284 "usage: chpass%s %s [user]\n",
286 " [-d domain] [-h host]",
290 "[-a list] [-p encpass] [-s shell] [-e mmm dd yy]");