2 * Copyright (c) 1990, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 static char sccsid[] = "@(#)pw_scan.c 8.3 (Berkeley) 4/2/94";
38 static const char rcsid[] =
39 "$FreeBSD: src/usr.sbin/pwd_mkdb/pw_scan.c,v 1.14.2.1 2002/11/11 08:52:04 maxim Exp $";
43 * This module is used to "verify" password entries by chpass(1) and
47 #include <sys/param.h>
61 * Some software assumes that IDs are short. We should emit warnings
62 * for id's which can not be stored in a short, but we are more liberal
63 * by default, warning for IDs greater than USHRT_MAX.
65 * If pw_big_ids_warning is anything other than -1 on entry to pw_scan()
66 * it will be set based on the existance of PW_SCAN_BIG_IDS in the
69 int pw_big_ids_warning = -1;
80 if (pw_big_ids_warning == -1)
81 pw_big_ids_warning = getenv("PW_SCAN_BIG_IDS") == NULL ? 1 : 0;
84 if (!(pw->pw_name = strsep(&bp, ":"))) /* login */
86 root = !strcmp(pw->pw_name, "root");
87 if(pw->pw_name[0] && (pw->pw_name[0] != '+' || pw->pw_name[1] == '\0'))
88 pw->pw_fields |= _PWF_NAME;
90 if (!(pw->pw_passwd = strsep(&bp, ":"))) /* passwd */
92 if(pw->pw_passwd[0]) pw->pw_fields |= _PWF_PASSWD;
94 if (!(p = strsep(&bp, ":"))) /* uid */
97 pw->pw_fields |= _PWF_UID;
99 if (pw->pw_name[0] != '+' && pw->pw_name[0] != '-') {
100 warnx("no uid for user %s", pw->pw_name);
104 id = strtoul(p, &ep, 10);
105 if (errno == ERANGE) {
106 warnx("%s > max uid value (%lu)", p, ULONG_MAX);
110 warnx("%s uid is incorrect", p);
114 warnx("root uid should be 0");
117 if (pw_big_ids_warning && id > USHRT_MAX) {
118 warnx("%s > recommended max uid value (%u)", p, USHRT_MAX);
119 /*return (0);*/ /* THIS SHOULD NOT BE FATAL! */
123 if (!(p = strsep(&bp, ":"))) /* gid */
126 pw->pw_fields |= _PWF_GID;
128 if (pw->pw_name[0] != '+' && pw->pw_name[0] != '-') {
129 warnx("no gid for user %s", pw->pw_name);
133 id = strtoul(p, &ep, 10);
134 if (errno == ERANGE) {
135 warnx("%s > max gid value (%lu)", p, ULONG_MAX);
139 warnx("%s gid is incorrect", p);
142 if (pw_big_ids_warning && id > USHRT_MAX) {
143 warnx("%s > recommended max gid value (%u)", p, USHRT_MAX);
144 /* return (0); This should not be fatal! */
148 pw->pw_class = strsep(&bp, ":"); /* class */
149 if(pw->pw_class[0]) pw->pw_fields |= _PWF_CLASS;
151 if (!(p = strsep(&bp, ":"))) /* change */
153 if(p[0]) pw->pw_fields |= _PWF_CHANGE;
154 pw->pw_change = atol(p);
156 if (!(p = strsep(&bp, ":"))) /* expire */
158 if(p[0]) pw->pw_fields |= _PWF_EXPIRE;
159 pw->pw_expire = atol(p);
161 if (!(pw->pw_gecos = strsep(&bp, ":"))) /* gecos */
163 if(pw->pw_gecos[0]) pw->pw_fields |= _PWF_GECOS;
165 if (!(pw->pw_dir = strsep(&bp, ":"))) /* directory */
167 if(pw->pw_dir[0]) pw->pw_fields |= _PWF_DIR;
169 if (!(pw->pw_shell = strsep(&bp, ":"))) /* shell */
173 if (root && *p) /* empty == /bin/sh */
174 for (setusershell();;) {
175 if (!(sh = getusershell())) {
176 warnx("warning, unknown root shell");
182 if(p[0]) pw->pw_fields |= _PWF_SHELL;
184 if ((p = strsep(&bp, ":"))) { /* too many */
185 fmt: warnx("corrupted entry");