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 char sccsid[] = "@(#)field.c 8.4 (Berkeley) 4/2/94";
49 #include <sys/cdefs.h>
50 __FBSDID("$FreeBSD$");
52 #include <sys/param.h>
68 p_login(char *p, struct passwd *pw, ENTRY *ep __unused)
71 warnx("empty login field");
75 warnx("login names may not begin with a hyphen");
78 if (!(pw->pw_name = strdup(p))) {
79 warnx("can't save entry");
83 warnx("\'.\' is dangerous in a login name");
86 warnx("upper-case letters are dangerous in a login name");
94 p_passwd(char *p, struct passwd *pw, ENTRY *ep __unused)
96 if (!(pw->pw_passwd = strdup(p))) {
97 warnx("can't save password entry");
106 p_uid(char *p, struct passwd *pw, ENTRY *ep __unused)
112 warnx("empty uid field");
116 warnx("illegal uid");
120 id = strtoul(p, &np, 10);
121 if (*np || (id == (uid_t)ULONG_MAX && errno == ERANGE)) {
122 warnx("illegal uid");
131 p_gid(char *p, struct passwd *pw, ENTRY *ep __unused)
138 warnx("empty gid field");
142 if (!(gr = getgrnam(p))) {
143 warnx("unknown group %s", p);
146 pw->pw_gid = gr->gr_gid;
150 id = strtoul(p, &np, 10);
151 if (*np || (id == (uid_t)ULONG_MAX && errno == ERANGE)) {
152 warnx("illegal gid");
161 p_class(char *p, struct passwd *pw, ENTRY *ep __unused)
163 if (!(pw->pw_class = strdup(p))) {
164 warnx("can't save entry");
173 p_change(char *p, struct passwd *pw, ENTRY *ep __unused)
175 if (!atot(p, &pw->pw_change))
177 warnx("illegal date for change field");
183 p_expire(char *p, struct passwd *pw, ENTRY *ep __unused)
185 if (!atot(p, &pw->pw_expire))
187 warnx("illegal date for expire field");
193 p_gecos(char *p, struct passwd *pw __unused, ENTRY *ep)
195 if (!(ep->save = strdup(p))) {
196 warnx("can't save entry");
204 p_hdir(char *p, struct passwd *pw, ENTRY *ep __unused)
207 warnx("empty home directory field");
210 if (!(pw->pw_dir = strdup(p))) {
211 warnx("can't save entry");
219 p_shell(char *p, struct passwd *pw, ENTRY *ep __unused)
224 pw->pw_shell = strdup(_PATH_BSHELL);
227 /* only admin can change from or to "restricted" shells */
228 if (!master_mode && pw->pw_shell && !ok_shell(pw->pw_shell)) {
229 warnx("%s: current shell non-standard", pw->pw_shell);
234 warnx("%s: non-standard shell", p);
237 pw->pw_shell = strdup(p);
240 pw->pw_shell = dup_shell(p);
242 warnx("can't save entry");
245 if (stat(pw->pw_shell, &sbuf) < 0) {
247 warnx("WARNING: shell '%s' does not exist",
250 warn("WARNING: can't stat shell '%s'", pw->pw_shell);
253 if (!S_ISREG(sbuf.st_mode)) {
254 warnx("WARNING: shell '%s' is not a regular file",
258 if ((sbuf.st_mode & (S_IXOTH | S_IXGRP | S_IXUSR)) == 0) {
259 warnx("WARNING: shell '%s' is not executable", pw->pw_shell);