xref: /freebsd/usr.sbin/pw/pw_user.c (revision 2e3db6fbe02143dd6529fcaba6ddea48dcb94978)
1d6f907dcSJoerg Wunsch /*-
2ad7cf975SJoerg Wunsch  * Copyright (C) 1996
3ad7cf975SJoerg Wunsch  *	David L. Nugent.  All rights reserved.
4d6f907dcSJoerg Wunsch  *
5d6f907dcSJoerg Wunsch  * Redistribution and use in source and binary forms, with or without
6d6f907dcSJoerg Wunsch  * modification, are permitted provided that the following conditions
7d6f907dcSJoerg Wunsch  * are met:
8d6f907dcSJoerg Wunsch  * 1. Redistributions of source code must retain the above copyright
9ad7cf975SJoerg Wunsch  *    notice, this list of conditions and the following disclaimer.
10d6f907dcSJoerg Wunsch  * 2. Redistributions in binary form must reproduce the above copyright
11d6f907dcSJoerg Wunsch  *    notice, this list of conditions and the following disclaimer in the
12d6f907dcSJoerg Wunsch  *    documentation and/or other materials provided with the distribution.
13d6f907dcSJoerg Wunsch  *
14ad7cf975SJoerg Wunsch  * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
15d6f907dcSJoerg Wunsch  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16d6f907dcSJoerg Wunsch  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17ad7cf975SJoerg Wunsch  * ARE DISCLAIMED.  IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
18d6f907dcSJoerg Wunsch  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19d6f907dcSJoerg Wunsch  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20d6f907dcSJoerg Wunsch  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21d6f907dcSJoerg Wunsch  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22d6f907dcSJoerg Wunsch  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23d6f907dcSJoerg Wunsch  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24d6f907dcSJoerg Wunsch  * SUCH DAMAGE.
25d6f907dcSJoerg Wunsch  *
262e3db6fbSDavid Nugent  *	$Id: pw_user.c,v 1.4 1996/12/17 01:43:30 davidn Exp $
27d6f907dcSJoerg Wunsch  */
28d6f907dcSJoerg Wunsch 
29d6f907dcSJoerg Wunsch #include <unistd.h>
30d6f907dcSJoerg Wunsch #include <fcntl.h>
31d6f907dcSJoerg Wunsch #include <ctype.h>
32d6f907dcSJoerg Wunsch #include <paths.h>
33d6f907dcSJoerg Wunsch #include <sys/param.h>
34d6f907dcSJoerg Wunsch #include <dirent.h>
35d6f907dcSJoerg Wunsch #include <termios.h>
36b7d2ba7cSDavid Nugent #include <sys/types.h>
37b7d2ba7cSDavid Nugent #include <sys/time.h>
38b7d2ba7cSDavid Nugent #include <sys/resource.h>
39b7d2ba7cSDavid Nugent #include <md5.h>
40d6f907dcSJoerg Wunsch #include "pw.h"
41d6f907dcSJoerg Wunsch #include "bitmap.h"
42d6f907dcSJoerg Wunsch #include "pwupd.h"
43d6f907dcSJoerg Wunsch 
44d6f907dcSJoerg Wunsch static int      print_user(struct passwd * pwd, int pretty);
45d6f907dcSJoerg Wunsch static uid_t    pw_uidpolicy(struct userconf * cnf, struct cargs * args);
46d6f907dcSJoerg Wunsch static uid_t    pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer);
47d6f907dcSJoerg Wunsch static time_t   pw_pwdpolicy(struct userconf * cnf, struct cargs * args);
48d6f907dcSJoerg Wunsch static time_t   pw_exppolicy(struct userconf * cnf, struct cargs * args);
49d6f907dcSJoerg Wunsch static char    *pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user);
50d6f907dcSJoerg Wunsch static char    *pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell);
51d6f907dcSJoerg Wunsch static char    *pw_password(struct userconf * cnf, struct cargs * args, char const * user);
52d6f907dcSJoerg Wunsch static char    *pw_checkname(char *name, int gecos);
53d6f907dcSJoerg Wunsch static char    *shell_path(char const * path, char *shells[], char *sh);
54d6f907dcSJoerg Wunsch static void     rmat(uid_t uid);
55d6f907dcSJoerg Wunsch 
56d6f907dcSJoerg Wunsch /*-
57d6f907dcSJoerg Wunsch  * -C config      configuration file
58d6f907dcSJoerg Wunsch  * -q             quiet operation
59d6f907dcSJoerg Wunsch  * -n name        login name
60d6f907dcSJoerg Wunsch  * -u uid         user id
61d6f907dcSJoerg Wunsch  * -c comment     user name/comment
62d6f907dcSJoerg Wunsch  * -d directory   home directory
63d6f907dcSJoerg Wunsch  * -e date        account expiry date
64d6f907dcSJoerg Wunsch  * -p date        password expiry date
65d6f907dcSJoerg Wunsch  * -g grp         primary group
66d6f907dcSJoerg Wunsch  * -G grp1,grp2   additional groups
67d6f907dcSJoerg Wunsch  * -m [ -k dir ]  create and set up home
68d6f907dcSJoerg Wunsch  * -s shell       name of login shell
69d6f907dcSJoerg Wunsch  * -o             duplicate uid ok
70d6f907dcSJoerg Wunsch  * -L class       user class
71d6f907dcSJoerg Wunsch  * -l name        new login name
72d6f907dcSJoerg Wunsch  * -h fd          password filehandle
73d6f907dcSJoerg Wunsch  * -F             force print or add
74d6f907dcSJoerg Wunsch  *   Setting defaults:
75d6f907dcSJoerg Wunsch  * -D             set user defaults
76d6f907dcSJoerg Wunsch  * -b dir         default home root dir
77d6f907dcSJoerg Wunsch  * -e period      default expiry period
78d6f907dcSJoerg Wunsch  * -p period      default password change period
79d6f907dcSJoerg Wunsch  * -g group       default group
80d6f907dcSJoerg Wunsch  * -G             grp1,grp2.. default additional groups
81d6f907dcSJoerg Wunsch  * -L class       default login class
82d6f907dcSJoerg Wunsch  * -k dir         default home skeleton
83d6f907dcSJoerg Wunsch  * -s shell       default shell
84d6f907dcSJoerg Wunsch  * -w method      default password method
85d6f907dcSJoerg Wunsch  */
86d6f907dcSJoerg Wunsch 
87d6f907dcSJoerg Wunsch int
88d6f907dcSJoerg Wunsch pw_user(struct userconf * cnf, int mode, struct cargs * args)
89d6f907dcSJoerg Wunsch {
90d6f907dcSJoerg Wunsch 	char           *p = NULL;
91d6f907dcSJoerg Wunsch 	struct carg    *a_name;
92d6f907dcSJoerg Wunsch 	struct carg    *a_uid;
93d6f907dcSJoerg Wunsch 	struct carg    *arg;
94d6f907dcSJoerg Wunsch 	struct passwd  *pwd = NULL;
95d6f907dcSJoerg Wunsch 	struct group   *grp;
96d6f907dcSJoerg Wunsch 	struct stat     st;
97d6f907dcSJoerg Wunsch 	char            line[MAXPWLINE];
98d6f907dcSJoerg Wunsch 
99d6f907dcSJoerg Wunsch 	static struct passwd fakeuser =
100d6f907dcSJoerg Wunsch 	{
101d6f907dcSJoerg Wunsch 		NULL,
102d6f907dcSJoerg Wunsch 		"*",
103d6f907dcSJoerg Wunsch 		-1,
104d6f907dcSJoerg Wunsch 		-1,
105d6f907dcSJoerg Wunsch 		0,
106d6f907dcSJoerg Wunsch 		"",
107d6f907dcSJoerg Wunsch 		"User &",
108d6f907dcSJoerg Wunsch 		"/bin/sh",
109d6f907dcSJoerg Wunsch 		0,
110d6f907dcSJoerg Wunsch 		0
111d6f907dcSJoerg Wunsch 	};
112d6f907dcSJoerg Wunsch 
113d6f907dcSJoerg Wunsch 	/*
11448aee7f3SJoerg Wunsch 	 * With M_NEXT, we only need to return the
11548aee7f3SJoerg Wunsch 	 * next uid to stdout
11648aee7f3SJoerg Wunsch 	 */
11748aee7f3SJoerg Wunsch 	if (mode == M_NEXT)
11848aee7f3SJoerg Wunsch 	{
11948aee7f3SJoerg Wunsch 		uid_t next = pw_uidpolicy(cnf, args);
12048aee7f3SJoerg Wunsch 		if (getarg(args, 'q'))
12148aee7f3SJoerg Wunsch 			return next;
12248aee7f3SJoerg Wunsch 		printf("%ld:", (long)next);
12348aee7f3SJoerg Wunsch 		pw_group(cnf, mode, args);
12448aee7f3SJoerg Wunsch 		return EXIT_SUCCESS;
12548aee7f3SJoerg Wunsch 	}
12648aee7f3SJoerg Wunsch 
12748aee7f3SJoerg Wunsch 	/*
128d6f907dcSJoerg Wunsch 	 * We can do all of the common legwork here
129d6f907dcSJoerg Wunsch 	 */
130d6f907dcSJoerg Wunsch 
131d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'b')) != NULL) {
13248aee7f3SJoerg Wunsch 		cnf->home = arg->val;
13348aee7f3SJoerg Wunsch 		if (stat(cnf->home, &st) == -1 || !S_ISDIR(st.st_mode))
13448aee7f3SJoerg Wunsch 			cmderr(EX_OSFILE, "root home `%s' is not a directory or does not exist\n", cnf->home);
135d6f907dcSJoerg Wunsch 	}
136d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'e')) != NULL)
137d6f907dcSJoerg Wunsch 		cnf->expire_days = atoi(arg->val);
138d6f907dcSJoerg Wunsch 
139d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'p')) != NULL && arg->val)
140d6f907dcSJoerg Wunsch 		cnf->password_days = atoi(arg->val);
141d6f907dcSJoerg Wunsch 
142d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'g')) != NULL) {
143d6f907dcSJoerg Wunsch 		p = arg->val;
144d6f907dcSJoerg Wunsch 		if ((grp = getgrnam(p)) == NULL) {
145d6f907dcSJoerg Wunsch 			if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL)
14648aee7f3SJoerg Wunsch 				cmderr(EX_NOUSER, "group `%s' does not exist\n", p);
147d6f907dcSJoerg Wunsch 		}
148d6f907dcSJoerg Wunsch 		cnf->default_group = newstr(grp->gr_name);
149d6f907dcSJoerg Wunsch 	}
150d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'L')) != NULL)
151d6f907dcSJoerg Wunsch 		cnf->default_class = pw_checkname(arg->val, 0);
152d6f907dcSJoerg Wunsch 
153d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'G')) != NULL && arg->val) {
154d6f907dcSJoerg Wunsch 		int             i = 0;
155d6f907dcSJoerg Wunsch 
156d6f907dcSJoerg Wunsch 		for (p = strtok(arg->val, ", \t"); i < _UC_MAXGROUPS && p != NULL; p = strtok(NULL, ", \t")) {
157d6f907dcSJoerg Wunsch 			if ((grp = getgrnam(p)) == NULL) {
158d6f907dcSJoerg Wunsch 				if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL)
15948aee7f3SJoerg Wunsch 					cmderr(EX_NOUSER, "group `%s' does not exist\n", p);
160d6f907dcSJoerg Wunsch 			}
161d6f907dcSJoerg Wunsch 			cnf->groups[i++] = newstr(grp->gr_name);
162d6f907dcSJoerg Wunsch 		}
163d6f907dcSJoerg Wunsch 		while (i < _UC_MAXGROUPS)
164d6f907dcSJoerg Wunsch 			cnf->groups[i++] = NULL;
165d6f907dcSJoerg Wunsch 	}
166d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'k')) != NULL) {
167d6f907dcSJoerg Wunsch 		if (stat(cnf->dotdir = arg->val, &st) == -1 || S_ISDIR(st.st_mode))
16848aee7f3SJoerg Wunsch 			cmderr(EX_OSFILE, "skeleton `%s' is not a directory or does not exist\n", cnf->dotdir);
169d6f907dcSJoerg Wunsch 	}
170d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 's')) != NULL)
171d6f907dcSJoerg Wunsch 		cnf->shell_default = arg->val;
172d6f907dcSJoerg Wunsch 
173d6f907dcSJoerg Wunsch 	if (mode == M_ADD && getarg(args, 'D')) {
174d6f907dcSJoerg Wunsch 		if (getarg(args, 'n') != NULL)
17548aee7f3SJoerg Wunsch 			cmderr(EX_DATAERR, "can't combine `-D' with `-n name'\n");
176d6f907dcSJoerg Wunsch 		if ((arg = getarg(args, 'u')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) {
177d6f907dcSJoerg Wunsch 			if ((cnf->min_uid = (uid_t) atoi(p)) == 0)
178d6f907dcSJoerg Wunsch 				cnf->min_uid = 1000;
179d6f907dcSJoerg Wunsch 			if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_uid = (uid_t) atoi(p)) < cnf->min_uid)
180d6f907dcSJoerg Wunsch 				cnf->max_uid = 32000;
181d6f907dcSJoerg Wunsch 		}
182d6f907dcSJoerg Wunsch 		if ((arg = getarg(args, 'i')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) {
183d6f907dcSJoerg Wunsch 			if ((cnf->min_gid = (gid_t) atoi(p)) == 0)
184d6f907dcSJoerg Wunsch 				cnf->min_gid = 1000;
185d6f907dcSJoerg Wunsch 			if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_gid = (gid_t) atoi(p)) < cnf->min_gid)
186d6f907dcSJoerg Wunsch 				cnf->max_gid = 32000;
187d6f907dcSJoerg Wunsch 		}
188d6f907dcSJoerg Wunsch 		if ((arg = getarg(args, 'w')) != NULL)
189d6f907dcSJoerg Wunsch 			cnf->default_password = boolean_val(arg->val, cnf->default_password);
190d6f907dcSJoerg Wunsch 
191d6f907dcSJoerg Wunsch 		arg = getarg(args, 'C');
192d6f907dcSJoerg Wunsch 		if (write_userconfig(arg ? arg->val : NULL))
19348aee7f3SJoerg Wunsch 			return EXIT_SUCCESS;
194d6f907dcSJoerg Wunsch 		perror("config update");
19548aee7f3SJoerg Wunsch 		return EX_IOERR;
196d6f907dcSJoerg Wunsch 	}
197d6f907dcSJoerg Wunsch 	if (mode == M_PRINT && getarg(args, 'a')) {
19848aee7f3SJoerg Wunsch 		int             pretty = getarg(args, 'P') != NULL;
199d6f907dcSJoerg Wunsch 
200d6f907dcSJoerg Wunsch 		setpwent();
201d6f907dcSJoerg Wunsch 		while ((pwd = getpwent()) != NULL)
202d6f907dcSJoerg Wunsch 			print_user(pwd, pretty);
203d6f907dcSJoerg Wunsch 		endpwent();
20448aee7f3SJoerg Wunsch 		return EXIT_SUCCESS;
205d6f907dcSJoerg Wunsch 	}
206d6f907dcSJoerg Wunsch 	if ((a_name = getarg(args, 'n')) != NULL)
207d6f907dcSJoerg Wunsch 		pwd = getpwnam(pw_checkname(a_name->val, 0));
208d6f907dcSJoerg Wunsch 	a_uid = getarg(args, 'u');
209d6f907dcSJoerg Wunsch 
210d6f907dcSJoerg Wunsch 	if (a_uid == NULL) {
211d6f907dcSJoerg Wunsch 		if (a_name == NULL)
21248aee7f3SJoerg Wunsch 			cmderr(EX_DATAERR, "user name or id required\n");
213d6f907dcSJoerg Wunsch 
214d6f907dcSJoerg Wunsch 		/*
215d6f907dcSJoerg Wunsch 		 * Determine whether 'n' switch is name or uid - we don't
216d6f907dcSJoerg Wunsch 		 * really don't really care which we have, but we need to
217d6f907dcSJoerg Wunsch 		 * know.
218d6f907dcSJoerg Wunsch 		 */
219d6f907dcSJoerg Wunsch 		if (mode != M_ADD && pwd == NULL && isdigit(*a_name->val) && atoi(a_name->val) > 0) {	/* Assume uid */
220d6f907dcSJoerg Wunsch 			(a_uid = a_name)->ch = 'u';
221d6f907dcSJoerg Wunsch 			a_name = NULL;
222d6f907dcSJoerg Wunsch 		}
223d6f907dcSJoerg Wunsch 	}
224d6f907dcSJoerg Wunsch 	/*
225d6f907dcSJoerg Wunsch 	 * Update, delete & print require that the user exists
226d6f907dcSJoerg Wunsch 	 */
227d6f907dcSJoerg Wunsch 	if (mode == M_UPDATE || mode == M_DELETE || mode == M_PRINT) {
228d6f907dcSJoerg Wunsch 		if (a_name == NULL && pwd == NULL)	/* Try harder */
229d6f907dcSJoerg Wunsch 			pwd = getpwuid(atoi(a_uid->val));
230d6f907dcSJoerg Wunsch 
231d6f907dcSJoerg Wunsch 		if (pwd == NULL) {
232d6f907dcSJoerg Wunsch 			if (mode == M_PRINT && getarg(args, 'F')) {
233d6f907dcSJoerg Wunsch 				fakeuser.pw_name = a_name ? a_name->val : "nouser";
234d6f907dcSJoerg Wunsch 				fakeuser.pw_uid = a_uid ? (uid_t) atol(a_uid->val) : -1;
23548aee7f3SJoerg Wunsch 				return print_user(&fakeuser, getarg(args, 'P') != NULL);
236d6f907dcSJoerg Wunsch 			}
237d6f907dcSJoerg Wunsch 			if (a_name == NULL)
23848aee7f3SJoerg Wunsch 				cmderr(EX_NOUSER, "no such uid `%s'\n", a_uid->val);
23948aee7f3SJoerg Wunsch 			cmderr(EX_NOUSER, "no such user `%s'\n", a_name->val);
240d6f907dcSJoerg Wunsch 		}
241d6f907dcSJoerg Wunsch 		if (a_name == NULL)	/* May be needed later */
242d6f907dcSJoerg Wunsch 			a_name = addarg(args, 'n', newstr(pwd->pw_name));
243d6f907dcSJoerg Wunsch 
244d6f907dcSJoerg Wunsch 		/*
245d6f907dcSJoerg Wunsch 		 * Handle deletions now
246d6f907dcSJoerg Wunsch 		 */
247d6f907dcSJoerg Wunsch 		if (mode == M_DELETE) {
248d6f907dcSJoerg Wunsch 			char            file[MAXPATHLEN];
249d6f907dcSJoerg Wunsch 			char            home[MAXPATHLEN];
250d6f907dcSJoerg Wunsch 			uid_t           uid = pwd->pw_uid;
251d6f907dcSJoerg Wunsch 
252d6f907dcSJoerg Wunsch 			if (strcmp(pwd->pw_name, "root") == 0)
25348aee7f3SJoerg Wunsch 				cmderr(EX_DATAERR, "cannot remove user 'root'\n");
254d6f907dcSJoerg Wunsch 
255d6f907dcSJoerg Wunsch 			/*
256d6f907dcSJoerg Wunsch 			 * Remove crontabs
257d6f907dcSJoerg Wunsch 			 */
258d6f907dcSJoerg Wunsch 			sprintf(file, "/var/cron/tabs/%s", pwd->pw_name);
259d6f907dcSJoerg Wunsch 			if (access(file, F_OK) == 0) {
260d6f907dcSJoerg Wunsch 				sprintf(file, "crontab -u %s -r", pwd->pw_name);
261d6f907dcSJoerg Wunsch 				system(file);
262d6f907dcSJoerg Wunsch 			}
263d6f907dcSJoerg Wunsch 			/*
264d6f907dcSJoerg Wunsch 			 * Save these for later, since contents of pwd may be
265d6f907dcSJoerg Wunsch 			 * invalidated by deletion
266d6f907dcSJoerg Wunsch 			 */
267d6f907dcSJoerg Wunsch 			sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name);
268d6f907dcSJoerg Wunsch 			strncpy(home, pwd->pw_dir, sizeof home);
269d6f907dcSJoerg Wunsch 			home[sizeof home - 1] = '\0';
270d6f907dcSJoerg Wunsch 
271d6f907dcSJoerg Wunsch 			if (!delpwent(pwd))
27248aee7f3SJoerg Wunsch 				cmderr(EX_IOERR, "Error updating passwd file: %s\n", strerror(errno));
273d6f907dcSJoerg Wunsch 			editgroups(a_name->val, NULL);
274d6f907dcSJoerg Wunsch 
275d6f907dcSJoerg Wunsch 			pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid);
276d6f907dcSJoerg Wunsch 
277d6f907dcSJoerg Wunsch 			/*
278d6f907dcSJoerg Wunsch 			 * Remove mail file
279d6f907dcSJoerg Wunsch 			 */
280d6f907dcSJoerg Wunsch 			remove(file);
281d6f907dcSJoerg Wunsch 
282d6f907dcSJoerg Wunsch 			/*
283d6f907dcSJoerg Wunsch 			 * Remove at jobs
284d6f907dcSJoerg Wunsch 			 */
285d6f907dcSJoerg Wunsch 			if (getpwuid(uid) == NULL)
286d6f907dcSJoerg Wunsch 				rmat(uid);
287d6f907dcSJoerg Wunsch 
288d6f907dcSJoerg Wunsch 			/*
289d6f907dcSJoerg Wunsch 			 * Remove home directory and contents
290d6f907dcSJoerg Wunsch 			 */
291d6f907dcSJoerg Wunsch 			if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) {
292d6f907dcSJoerg Wunsch 				if (stat(home, &st) != -1) {
293d6f907dcSJoerg Wunsch 					rm_r(home, uid);
294d6f907dcSJoerg Wunsch 					pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved",
295d6f907dcSJoerg Wunsch 					       a_name->val, (long) uid, home,
296d6f907dcSJoerg Wunsch 					       stat(home, &st) == -1 ? "" : "not completely ");
297d6f907dcSJoerg Wunsch 				}
298d6f907dcSJoerg Wunsch 			}
29948aee7f3SJoerg Wunsch 			return EXIT_SUCCESS;
300d6f907dcSJoerg Wunsch 		} else if (mode == M_PRINT)
30148aee7f3SJoerg Wunsch 			return print_user(pwd, getarg(args, 'P') != NULL);
302d6f907dcSJoerg Wunsch 
303d6f907dcSJoerg Wunsch 		/*
304d6f907dcSJoerg Wunsch 		 * The rest is edit code
305d6f907dcSJoerg Wunsch 		 */
306d6f907dcSJoerg Wunsch 		if ((arg = getarg(args, 'l')) != NULL) {
307d6f907dcSJoerg Wunsch 			if (strcmp(pwd->pw_name, "root") == 0)
30848aee7f3SJoerg Wunsch 				cmderr(EX_DATAERR, "can't rename `root' account\n");
309d6f907dcSJoerg Wunsch 			pwd->pw_name = pw_checkname(arg->val, 0);
310d6f907dcSJoerg Wunsch 		}
311d6f907dcSJoerg Wunsch 		if ((arg = getarg(args, 'u')) != NULL && isdigit(*arg->val)) {
312d6f907dcSJoerg Wunsch 			pwd->pw_uid = (uid_t) atol(arg->val);
313d6f907dcSJoerg Wunsch 			if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0)
31448aee7f3SJoerg Wunsch 				cmderr(EX_DATAERR, "can't change uid of `root' account\n");
315d6f907dcSJoerg Wunsch 			if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
316d6f907dcSJoerg Wunsch 				fprintf(stderr, "WARNING: account `%s' will have a uid of 0 (superuser access!)\n", pwd->pw_name);
317d6f907dcSJoerg Wunsch 		}
318d6f907dcSJoerg Wunsch 		if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0)	/* Already checked this */
319d6f907dcSJoerg Wunsch 			pwd->pw_gid = (gid_t) getgrnam(cnf->default_group)->gr_gid;
320d6f907dcSJoerg Wunsch 
321d6f907dcSJoerg Wunsch 		if ((arg = getarg(args, 'p')) != NULL) {
322d6f907dcSJoerg Wunsch 			if (*arg->val == '\0' || strcmp(arg->val, "0") == 0)
323d6f907dcSJoerg Wunsch 				pwd->pw_change = 0;
324d6f907dcSJoerg Wunsch 			else {
325d6f907dcSJoerg Wunsch 				time_t          now = time(NULL);
326d6f907dcSJoerg Wunsch 				time_t          expire = parse_date(now, arg->val);
327d6f907dcSJoerg Wunsch 
328d6f907dcSJoerg Wunsch 				if (now == expire)
32948aee7f3SJoerg Wunsch 					cmderr(EX_DATAERR, "Invalid password change date `%s'\n", arg->val);
330d6f907dcSJoerg Wunsch 				pwd->pw_change = expire;
331d6f907dcSJoerg Wunsch 			}
332d6f907dcSJoerg Wunsch 		}
33348aee7f3SJoerg Wunsch 		if ((arg = getarg(args, 'e')) != NULL) {
334d6f907dcSJoerg Wunsch 			if (*arg->val == '\0' || strcmp(arg->val, "0") == 0)
335d6f907dcSJoerg Wunsch 				pwd->pw_expire = 0;
336d6f907dcSJoerg Wunsch 			else {
337d6f907dcSJoerg Wunsch 				time_t          now = time(NULL);
338d6f907dcSJoerg Wunsch 				time_t          expire = parse_date(now, arg->val);
339d6f907dcSJoerg Wunsch 
340d6f907dcSJoerg Wunsch 				if (now == expire)
34148aee7f3SJoerg Wunsch 					cmderr(EX_DATAERR, "Invalid account expiry date `%s'\n", arg->val);
342d6f907dcSJoerg Wunsch 				pwd->pw_expire = expire;
343d6f907dcSJoerg Wunsch 			}
344d6f907dcSJoerg Wunsch 		}
345d6f907dcSJoerg Wunsch 		if ((arg = getarg(args, 's')) != NULL)
346d6f907dcSJoerg Wunsch 			pwd->pw_shell = shell_path(cnf->shelldir, cnf->shells, arg->val);
347d6f907dcSJoerg Wunsch 
348d6f907dcSJoerg Wunsch 		if (getarg(args, 'L'))
349d6f907dcSJoerg Wunsch 			pwd->pw_class = cnf->default_class;
350d6f907dcSJoerg Wunsch 
35148aee7f3SJoerg Wunsch 		if ((arg = getarg(args, 'w')) != NULL && getarg(args, 'h') == NULL)
35248aee7f3SJoerg Wunsch 			pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
35348aee7f3SJoerg Wunsch 
354d6f907dcSJoerg Wunsch 	} else {
355d6f907dcSJoerg Wunsch 		if (a_name == NULL)	/* Required */
35648aee7f3SJoerg Wunsch 			cmderr(EX_DATAERR, "login name required\n");
357d6f907dcSJoerg Wunsch 		else if ((pwd = getpwnam(a_name->val)) != NULL)	/* Exists */
35848aee7f3SJoerg Wunsch 			cmderr(EX_DATAERR, "login name `%s' already exists\n", a_name->val);
359d6f907dcSJoerg Wunsch 
360d6f907dcSJoerg Wunsch 		/*
361d6f907dcSJoerg Wunsch 		 * Now, set up defaults for a new user
362d6f907dcSJoerg Wunsch 		 */
363d6f907dcSJoerg Wunsch 		pwd = &fakeuser;
364d6f907dcSJoerg Wunsch 		pwd->pw_name = a_name->val;
365d6f907dcSJoerg Wunsch 		pwd->pw_class = cnf->default_class ? cnf->default_class : "";
366d6f907dcSJoerg Wunsch 		pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
367d6f907dcSJoerg Wunsch 		pwd->pw_uid = pw_uidpolicy(cnf, args);
368d6f907dcSJoerg Wunsch 		pwd->pw_gid = pw_gidpolicy(cnf, args, pwd->pw_name, (gid_t) pwd->pw_uid);
369d6f907dcSJoerg Wunsch 		pwd->pw_change = pw_pwdpolicy(cnf, args);
370d6f907dcSJoerg Wunsch 		pwd->pw_expire = pw_exppolicy(cnf, args);
371d6f907dcSJoerg Wunsch 		pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name);
372d6f907dcSJoerg Wunsch 		pwd->pw_shell = pw_shellpolicy(cnf, args, NULL);
373d6f907dcSJoerg Wunsch 
374d6f907dcSJoerg Wunsch 		if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
375d6f907dcSJoerg Wunsch 			fprintf(stderr, "WARNING: new account `%s' has a uid of 0 (superuser access!)\n", pwd->pw_name);
376d6f907dcSJoerg Wunsch 	}
377d6f907dcSJoerg Wunsch 
378d6f907dcSJoerg Wunsch 	/*
379d6f907dcSJoerg Wunsch 	 * Shared add/edit code
380d6f907dcSJoerg Wunsch 	 */
381d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'c')) != NULL)
382d6f907dcSJoerg Wunsch 		pwd->pw_gecos = pw_checkname(arg->val, 1);
383d6f907dcSJoerg Wunsch 
384d6f907dcSJoerg Wunsch 	if ((arg = getarg(args, 'h')) != NULL) {
385d6f907dcSJoerg Wunsch 		if (strcmp(arg->val, "-") == 0)
386d6f907dcSJoerg Wunsch 			pwd->pw_passwd = "*";	/* No access */
387d6f907dcSJoerg Wunsch 		else {
388d6f907dcSJoerg Wunsch 			int             fd = atoi(arg->val);
389d6f907dcSJoerg Wunsch 			int             b;
390d6f907dcSJoerg Wunsch 			int             istty = isatty(fd);
391d6f907dcSJoerg Wunsch 			struct termios  t;
392d6f907dcSJoerg Wunsch 
393d6f907dcSJoerg Wunsch 			if (istty) {
394d6f907dcSJoerg Wunsch 				if (tcgetattr(fd, &t) == -1)
395d6f907dcSJoerg Wunsch 					istty = 0;
396d6f907dcSJoerg Wunsch 				else {
397d6f907dcSJoerg Wunsch 					struct termios  n = t;
398d6f907dcSJoerg Wunsch 
399d6f907dcSJoerg Wunsch 					/* Disable echo */
400d6f907dcSJoerg Wunsch 					n.c_lflag &= ~(ECHO);
401d6f907dcSJoerg Wunsch 					tcsetattr(fd, TCSANOW, &n);
402d6f907dcSJoerg Wunsch 					printf("%sassword for user %s:", (mode == M_UPDATE) ? "New p" : "P", pwd->pw_name);
403d6f907dcSJoerg Wunsch 					fflush(stdout);
404d6f907dcSJoerg Wunsch 				}
405d6f907dcSJoerg Wunsch 			}
406d6f907dcSJoerg Wunsch 			b = read(fd, line, sizeof(line) - 1);
407d6f907dcSJoerg Wunsch 			if (istty) {	/* Restore state */
408d6f907dcSJoerg Wunsch 				tcsetattr(fd, TCSANOW, &t);
409d6f907dcSJoerg Wunsch 				fputc('\n', stdout);
410d6f907dcSJoerg Wunsch 				fflush(stdout);
411d6f907dcSJoerg Wunsch 			}
412d6f907dcSJoerg Wunsch 			if (b < 0) {
413d6f907dcSJoerg Wunsch 				perror("-h file descriptor");
41448aee7f3SJoerg Wunsch 				return EX_IOERR;
415d6f907dcSJoerg Wunsch 			}
416d6f907dcSJoerg Wunsch 			line[b] = '\0';
417d6f907dcSJoerg Wunsch 			if ((p = strpbrk(line, " \t\r\n")) != NULL)
418d6f907dcSJoerg Wunsch 				*p = '\0';
419d6f907dcSJoerg Wunsch 			if (!*line)
42048aee7f3SJoerg Wunsch 				cmderr(EX_DATAERR, "empty password read on file descriptor %d\n", fd);
421d6f907dcSJoerg Wunsch 			pwd->pw_passwd = pw_pwcrypt(line);
422d6f907dcSJoerg Wunsch 		}
423d6f907dcSJoerg Wunsch 	}
42448aee7f3SJoerg Wunsch 
42548aee7f3SJoerg Wunsch 	/*
42648aee7f3SJoerg Wunsch 	 * Special case: -N only displays & exits
42748aee7f3SJoerg Wunsch 	 */
42848aee7f3SJoerg Wunsch 	if (getarg(args, 'N') != NULL)
42948aee7f3SJoerg Wunsch 		return print_user(pwd, getarg(args, 'P') != NULL);
43048aee7f3SJoerg Wunsch 
431d6f907dcSJoerg Wunsch 	if ((mode == M_ADD && !addpwent(pwd)) ||
432d6f907dcSJoerg Wunsch 	    (mode == M_UPDATE && !chgpwent(a_name->val, pwd))) {
433d6f907dcSJoerg Wunsch 		perror("password update");
43448aee7f3SJoerg Wunsch 		return EX_IOERR;
435d6f907dcSJoerg Wunsch 	}
436d6f907dcSJoerg Wunsch 	/*
437d6f907dcSJoerg Wunsch 	 * Ok, user is created or changed - now edit group file
438d6f907dcSJoerg Wunsch 	 */
439d6f907dcSJoerg Wunsch 
440d6f907dcSJoerg Wunsch 	if (mode == M_ADD || getarg(args, 'G') != NULL)
441d6f907dcSJoerg Wunsch 		editgroups(pwd->pw_name, cnf->groups);
442d6f907dcSJoerg Wunsch 
443d6f907dcSJoerg Wunsch 	/* pwd may have been invalidated */
444d6f907dcSJoerg Wunsch 	if ((pwd = getpwnam(a_name->val)) == NULL)
44548aee7f3SJoerg Wunsch 		cmderr(EX_NOUSER, "user '%s' disappeared during update\n", a_name->val);
446d6f907dcSJoerg Wunsch 
447d6f907dcSJoerg Wunsch 	grp = getgrgid(pwd->pw_gid);
448d6f907dcSJoerg Wunsch 	pw_log(cnf, mode, W_USER, "%s(%ld):%s(%d):%s:%s:%s",
449d6f907dcSJoerg Wunsch 	       pwd->pw_name, (long) pwd->pw_uid,
450d6f907dcSJoerg Wunsch 	    grp ? grp->gr_name : "unknown", (long) (grp ? grp->gr_gid : -1),
451d6f907dcSJoerg Wunsch 	       pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell);
452d6f907dcSJoerg Wunsch 
453d6f907dcSJoerg Wunsch 	/*
454d6f907dcSJoerg Wunsch 	 * If adding, let's touch and chown the user's mail file. This is not
455d6f907dcSJoerg Wunsch 	 * strictly necessary under BSD with a 0755 maildir but it also
456d6f907dcSJoerg Wunsch 	 * doesn't hurt anything to create the empty mailfile
457d6f907dcSJoerg Wunsch 	 */
458d6f907dcSJoerg Wunsch 	if (mode == M_ADD) {
459d6f907dcSJoerg Wunsch 		FILE           *fp;
460d6f907dcSJoerg Wunsch 
461d6f907dcSJoerg Wunsch 		sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name);
462d6f907dcSJoerg Wunsch 		close(open(line, O_RDWR | O_CREAT, 0600));	/* Preserve contents &
463d6f907dcSJoerg Wunsch 								 * mtime */
464d6f907dcSJoerg Wunsch 		chown(line, pwd->pw_uid, pwd->pw_gid);
465d6f907dcSJoerg Wunsch 
466d6f907dcSJoerg Wunsch 		/*
467d6f907dcSJoerg Wunsch 		 * Send mail to the new user as well, if we are asked to
468d6f907dcSJoerg Wunsch 		 */
469d6f907dcSJoerg Wunsch 		if (cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) {
470d6f907dcSJoerg Wunsch 			FILE           *pfp = popen(_PATH_SENDMAIL " -t", "w");
471d6f907dcSJoerg Wunsch 
472d6f907dcSJoerg Wunsch 			if (pfp == NULL)
473d6f907dcSJoerg Wunsch 				perror("sendmail");
474d6f907dcSJoerg Wunsch 			else {
475d6f907dcSJoerg Wunsch 				fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name);
476d6f907dcSJoerg Wunsch 				while (fgets(line, sizeof(line), fp) != NULL) {
477d6f907dcSJoerg Wunsch 					/* Do substitutions? */
478d6f907dcSJoerg Wunsch 					fputs(line, pfp);
479d6f907dcSJoerg Wunsch 				}
480d6f907dcSJoerg Wunsch 				pclose(pfp);
481d6f907dcSJoerg Wunsch 				pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent",
482d6f907dcSJoerg Wunsch 				       pwd->pw_name, (long) pwd->pw_uid);
483d6f907dcSJoerg Wunsch 			}
484d6f907dcSJoerg Wunsch 			fclose(fp);
485d6f907dcSJoerg Wunsch 		}
486d6f907dcSJoerg Wunsch 	}
487d6f907dcSJoerg Wunsch 	/*
488d6f907dcSJoerg Wunsch 	 * Finally, let's create and populate the user's home directory. Note
489d6f907dcSJoerg Wunsch 	 * that this also `works' for editing users if -m is used, but
490d6f907dcSJoerg Wunsch 	 * existing files will *not* be overwritten.
491d6f907dcSJoerg Wunsch 	 */
492d6f907dcSJoerg Wunsch 	if (getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) {
493d6f907dcSJoerg Wunsch 		copymkdir(pwd->pw_dir, cnf->dotdir, 0755, pwd->pw_uid, pwd->pw_gid);
494d6f907dcSJoerg Wunsch 		pw_log(cnf, mode, W_USER, "%s(%ld) home %s made",
495d6f907dcSJoerg Wunsch 		       pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir);
496d6f907dcSJoerg Wunsch 	}
49748aee7f3SJoerg Wunsch 	return EXIT_SUCCESS;
498d6f907dcSJoerg Wunsch }
499d6f907dcSJoerg Wunsch 
500d6f907dcSJoerg Wunsch 
501d6f907dcSJoerg Wunsch static          uid_t
502d6f907dcSJoerg Wunsch pw_uidpolicy(struct userconf * cnf, struct cargs * args)
503d6f907dcSJoerg Wunsch {
504d6f907dcSJoerg Wunsch 	struct passwd  *pwd;
505d6f907dcSJoerg Wunsch 	uid_t           uid = (uid_t) - 1;
506d6f907dcSJoerg Wunsch 	struct carg    *a_uid = getarg(args, 'u');
507d6f907dcSJoerg Wunsch 
508d6f907dcSJoerg Wunsch 	/*
509d6f907dcSJoerg Wunsch 	 * Check the given uid, if any
510d6f907dcSJoerg Wunsch 	 */
511d6f907dcSJoerg Wunsch 	if (a_uid != NULL) {
512d6f907dcSJoerg Wunsch 		uid = (uid_t) atol(a_uid->val);
513d6f907dcSJoerg Wunsch 
514d6f907dcSJoerg Wunsch 		if ((pwd = getpwuid(uid)) != NULL && getarg(args, 'o') == NULL)
51548aee7f3SJoerg Wunsch 			cmderr(EX_DATAERR, "uid `%ld' has already been allocated\n", (long) pwd->pw_uid);
516d6f907dcSJoerg Wunsch 	} else {
517d6f907dcSJoerg Wunsch 		struct bitmap   bm;
518d6f907dcSJoerg Wunsch 
519d6f907dcSJoerg Wunsch 		/*
520d6f907dcSJoerg Wunsch 		 * We need to allocate the next available uid under one of
521d6f907dcSJoerg Wunsch 		 * two policies a) Grab the first unused uid b) Grab the
522d6f907dcSJoerg Wunsch 		 * highest possible unused uid
523d6f907dcSJoerg Wunsch 		 */
524d6f907dcSJoerg Wunsch 		if (cnf->min_uid >= cnf->max_uid) {	/* Sanity
525d6f907dcSJoerg Wunsch 							 * claus^H^H^H^Hheck */
526d6f907dcSJoerg Wunsch 			cnf->min_uid = 1000;
527d6f907dcSJoerg Wunsch 			cnf->max_uid = 32000;
528d6f907dcSJoerg Wunsch 		}
529d6f907dcSJoerg Wunsch 		bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1);
530d6f907dcSJoerg Wunsch 
531d6f907dcSJoerg Wunsch 		/*
532d6f907dcSJoerg Wunsch 		 * Now, let's fill the bitmap from the password file
533d6f907dcSJoerg Wunsch 		 */
534d6f907dcSJoerg Wunsch 		setpwent();
535d6f907dcSJoerg Wunsch 		while ((pwd = getpwent()) != NULL)
536d6f907dcSJoerg Wunsch 			if (pwd->pw_uid >= (int) cnf->min_uid && pwd->pw_uid <= (int) cnf->max_uid)
537d6f907dcSJoerg Wunsch 				bm_setbit(&bm, pwd->pw_uid - cnf->min_uid);
538d6f907dcSJoerg Wunsch 		endpwent();
539d6f907dcSJoerg Wunsch 
540d6f907dcSJoerg Wunsch 		/*
541d6f907dcSJoerg Wunsch 		 * Then apply the policy, with fallback to reuse if necessary
542d6f907dcSJoerg Wunsch 		 */
543d6f907dcSJoerg Wunsch 		if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid)
544d6f907dcSJoerg Wunsch 			uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid);
545d6f907dcSJoerg Wunsch 
546d6f907dcSJoerg Wunsch 		/*
547d6f907dcSJoerg Wunsch 		 * Another sanity check
548d6f907dcSJoerg Wunsch 		 */
549d6f907dcSJoerg Wunsch 		if (uid < cnf->min_uid || uid > cnf->max_uid)
55048aee7f3SJoerg Wunsch 			cmderr(EX_SOFTWARE, "unable to allocate a new uid - range fully used\n");
551d6f907dcSJoerg Wunsch 		bm_dealloc(&bm);
552d6f907dcSJoerg Wunsch 	}
553d6f907dcSJoerg Wunsch 	return uid;
554d6f907dcSJoerg Wunsch }
555d6f907dcSJoerg Wunsch 
556d6f907dcSJoerg Wunsch 
557d6f907dcSJoerg Wunsch static          uid_t
558d6f907dcSJoerg Wunsch pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer)
559d6f907dcSJoerg Wunsch {
560d6f907dcSJoerg Wunsch 	struct group   *grp;
561d6f907dcSJoerg Wunsch 	gid_t           gid = (uid_t) - 1;
562d6f907dcSJoerg Wunsch 	struct carg    *a_gid = getarg(args, 'g');
563d6f907dcSJoerg Wunsch 
564d6f907dcSJoerg Wunsch 	/*
565d6f907dcSJoerg Wunsch 	 * If no arg given, see if default can help out
566d6f907dcSJoerg Wunsch 	 */
567d6f907dcSJoerg Wunsch 	if (a_gid == NULL && cnf->default_group && *cnf->default_group)
568d6f907dcSJoerg Wunsch 		a_gid = addarg(args, 'g', cnf->default_group);
569d6f907dcSJoerg Wunsch 
570d6f907dcSJoerg Wunsch 	/*
571d6f907dcSJoerg Wunsch 	 * Check the given gid, if any
572d6f907dcSJoerg Wunsch 	 */
573d6f907dcSJoerg Wunsch 	setgrent();
57448aee7f3SJoerg Wunsch 	if (a_gid != NULL) {
575d6f907dcSJoerg Wunsch 		if ((grp = getgrnam(a_gid->val)) == NULL) {
576d6f907dcSJoerg Wunsch 			gid = (gid_t) atol(a_gid->val);
577d6f907dcSJoerg Wunsch 			if ((gid == 0 && !isdigit(*a_gid->val)) || (grp = getgrgid(gid)) == NULL)
57848aee7f3SJoerg Wunsch 				cmderr(EX_NOUSER, "group `%s' is not defined\n", a_gid->val);
579d6f907dcSJoerg Wunsch 		}
580d6f907dcSJoerg Wunsch 		gid = grp->gr_gid;
58148aee7f3SJoerg Wunsch 	} else if ((grp = getgrnam(nam)) != NULL && grp->gr_mem[0] == NULL) {
58248aee7f3SJoerg Wunsch 		gid = grp->gr_gid;  /* Already created? Use it anyway... */
583d6f907dcSJoerg Wunsch 	} else {
584d6f907dcSJoerg Wunsch 		struct cargs    grpargs;
585d6f907dcSJoerg Wunsch 		char            tmp[32];
586d6f907dcSJoerg Wunsch 
587d6f907dcSJoerg Wunsch 		LIST_INIT(&grpargs);
588d6f907dcSJoerg Wunsch 		addarg(&grpargs, 'n', nam);
589d6f907dcSJoerg Wunsch 
590d6f907dcSJoerg Wunsch 		/*
591d6f907dcSJoerg Wunsch 		 * We need to auto-create a group with the user's name. We
592d6f907dcSJoerg Wunsch 		 * can send all the appropriate output to our sister routine
593d6f907dcSJoerg Wunsch 		 * bit first see if we can create a group with gid==uid so we
594d6f907dcSJoerg Wunsch 		 * can keep the user and group ids in sync. We purposely do
595d6f907dcSJoerg Wunsch 		 * NOT check the gid range if we can force the sync. If the
596d6f907dcSJoerg Wunsch 		 * user's name dups an existing group, then the group add
597d6f907dcSJoerg Wunsch 		 * function will happily handle that case for us and exit.
598d6f907dcSJoerg Wunsch 		 */
599d6f907dcSJoerg Wunsch 		if (getgrgid(prefer) == NULL) {
600d6f907dcSJoerg Wunsch 			sprintf(tmp, "%lu", (unsigned long) prefer);
601d6f907dcSJoerg Wunsch 			addarg(&grpargs, 'g', tmp);
602d6f907dcSJoerg Wunsch 		}
60348aee7f3SJoerg Wunsch 		if (getarg(args, 'N'))
60448aee7f3SJoerg Wunsch 		{
60548aee7f3SJoerg Wunsch 			addarg(&grpargs, 'N', NULL);
60648aee7f3SJoerg Wunsch 			addarg(&grpargs, 'q', NULL);
60748aee7f3SJoerg Wunsch 			gid = pw_group(cnf, M_NEXT, &grpargs);
608d6f907dcSJoerg Wunsch 		}
60948aee7f3SJoerg Wunsch 		else
61048aee7f3SJoerg Wunsch 		{
61148aee7f3SJoerg Wunsch 			pw_group(cnf, M_ADD, &grpargs);
612d6f907dcSJoerg Wunsch 			if ((grp = getgrnam(nam)) != NULL)
613d6f907dcSJoerg Wunsch 				gid = grp->gr_gid;
614d6f907dcSJoerg Wunsch 		}
61548aee7f3SJoerg Wunsch 		a_gid = grpargs.lh_first;
61648aee7f3SJoerg Wunsch 		while (a_gid != NULL) {
61748aee7f3SJoerg Wunsch 			struct carg    *t = a_gid->list.le_next;
61848aee7f3SJoerg Wunsch 			LIST_REMOVE(a_gid, list);
61948aee7f3SJoerg Wunsch 			a_gid = t;
62048aee7f3SJoerg Wunsch 		}
62148aee7f3SJoerg Wunsch 	}
62248aee7f3SJoerg Wunsch 	endgrent();
623d6f907dcSJoerg Wunsch 	return gid;
624d6f907dcSJoerg Wunsch }
625d6f907dcSJoerg Wunsch 
626d6f907dcSJoerg Wunsch 
627d6f907dcSJoerg Wunsch static          time_t
628d6f907dcSJoerg Wunsch pw_pwdpolicy(struct userconf * cnf, struct cargs * args)
629d6f907dcSJoerg Wunsch {
630d6f907dcSJoerg Wunsch 	time_t          result = 0;
631d6f907dcSJoerg Wunsch 	time_t          now = time(NULL);
632d6f907dcSJoerg Wunsch 	struct carg    *arg = getarg(args, 'e');
633d6f907dcSJoerg Wunsch 
634d6f907dcSJoerg Wunsch 	if (arg != NULL) {
635d6f907dcSJoerg Wunsch 		if ((result = parse_date(now, arg->val)) == now)
63648aee7f3SJoerg Wunsch 			cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val);
637d6f907dcSJoerg Wunsch 	} else if (cnf->password_days > 0)
638d6f907dcSJoerg Wunsch 		result = now + ((long) cnf->password_days * 86400L);
639d6f907dcSJoerg Wunsch 	return result;
640d6f907dcSJoerg Wunsch }
641d6f907dcSJoerg Wunsch 
642d6f907dcSJoerg Wunsch 
643d6f907dcSJoerg Wunsch static          time_t
644d6f907dcSJoerg Wunsch pw_exppolicy(struct userconf * cnf, struct cargs * args)
645d6f907dcSJoerg Wunsch {
646d6f907dcSJoerg Wunsch 	time_t          result = 0;
647d6f907dcSJoerg Wunsch 	time_t          now = time(NULL);
648d6f907dcSJoerg Wunsch 	struct carg    *arg = getarg(args, 'e');
649d6f907dcSJoerg Wunsch 
650d6f907dcSJoerg Wunsch 	if (arg != NULL) {
651d6f907dcSJoerg Wunsch 		if ((result = parse_date(now, arg->val)) == now)
65248aee7f3SJoerg Wunsch 			cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val);
653d6f907dcSJoerg Wunsch 	} else if (cnf->expire_days > 0)
654d6f907dcSJoerg Wunsch 		result = now + ((long) cnf->expire_days * 86400L);
655d6f907dcSJoerg Wunsch 	return result;
656d6f907dcSJoerg Wunsch }
657d6f907dcSJoerg Wunsch 
658d6f907dcSJoerg Wunsch 
659d6f907dcSJoerg Wunsch static char    *
660d6f907dcSJoerg Wunsch pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user)
661d6f907dcSJoerg Wunsch {
662d6f907dcSJoerg Wunsch 	struct carg    *arg = getarg(args, 'd');
663d6f907dcSJoerg Wunsch 
664d6f907dcSJoerg Wunsch 	if (arg)
665d6f907dcSJoerg Wunsch 		return arg->val;
666d6f907dcSJoerg Wunsch 	else {
667d6f907dcSJoerg Wunsch 		static char     home[128];
668d6f907dcSJoerg Wunsch 
669d6f907dcSJoerg Wunsch 		if (cnf->home == NULL || *cnf->home == '\0')
67048aee7f3SJoerg Wunsch 			cmderr(EX_CONFIG, "no base home directory set\n");
671d6f907dcSJoerg Wunsch 		sprintf(home, "%s/%s", cnf->home, user);
672d6f907dcSJoerg Wunsch 		return home;
673d6f907dcSJoerg Wunsch 	}
674d6f907dcSJoerg Wunsch }
675d6f907dcSJoerg Wunsch 
676d6f907dcSJoerg Wunsch static char    *
677d6f907dcSJoerg Wunsch shell_path(char const * path, char *shells[], char *sh)
678d6f907dcSJoerg Wunsch {
679d6f907dcSJoerg Wunsch 	if (sh != NULL && (*sh == '/' || *sh == '\0'))
680d6f907dcSJoerg Wunsch 		return sh;	/* specified full path or forced none */
681d6f907dcSJoerg Wunsch 	else {
682d6f907dcSJoerg Wunsch 		char           *p;
683d6f907dcSJoerg Wunsch 		char            paths[_UC_MAXLINE];
684d6f907dcSJoerg Wunsch 
685d6f907dcSJoerg Wunsch 		/*
686d6f907dcSJoerg Wunsch 		 * We need to search paths
687d6f907dcSJoerg Wunsch 		 */
688d6f907dcSJoerg Wunsch 		strncpy(paths, path, sizeof paths);
689d6f907dcSJoerg Wunsch 		paths[sizeof paths - 1] = '\0';
690d6f907dcSJoerg Wunsch 		for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) {
691d6f907dcSJoerg Wunsch 			int             i;
692d6f907dcSJoerg Wunsch 			static char     shellpath[256];
693d6f907dcSJoerg Wunsch 
694d6f907dcSJoerg Wunsch 			if (sh != NULL) {
695d6f907dcSJoerg Wunsch 				sprintf(shellpath, "%s/%s", p, sh);
696d6f907dcSJoerg Wunsch 				if (access(shellpath, X_OK) == 0)
697d6f907dcSJoerg Wunsch 					return shellpath;
698d6f907dcSJoerg Wunsch 			} else
699d6f907dcSJoerg Wunsch 				for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) {
700d6f907dcSJoerg Wunsch 					sprintf(shellpath, "%s/%s", p, shells[i]);
701d6f907dcSJoerg Wunsch 					if (access(shellpath, X_OK) == 0)
702d6f907dcSJoerg Wunsch 						return shellpath;
703d6f907dcSJoerg Wunsch 				}
704d6f907dcSJoerg Wunsch 		}
705d6f907dcSJoerg Wunsch 		if (sh == NULL)
70648aee7f3SJoerg Wunsch 			cmderr(EX_OSFILE, "can't find shell `%s' in shell paths\n", sh);
70748aee7f3SJoerg Wunsch 		cmderr(EX_CONFIG, "no default shell available or defined\n");
708d6f907dcSJoerg Wunsch 		return NULL;
709d6f907dcSJoerg Wunsch 	}
710d6f907dcSJoerg Wunsch }
711d6f907dcSJoerg Wunsch 
712d6f907dcSJoerg Wunsch 
713d6f907dcSJoerg Wunsch static char    *
714d6f907dcSJoerg Wunsch pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell)
715d6f907dcSJoerg Wunsch {
716d6f907dcSJoerg Wunsch 	char           *sh = newshell;
717d6f907dcSJoerg Wunsch 	struct carg    *arg = getarg(args, 's');
718d6f907dcSJoerg Wunsch 
719d6f907dcSJoerg Wunsch 	if (newshell == NULL && arg != NULL)
720d6f907dcSJoerg Wunsch 		sh = arg->val;
721d6f907dcSJoerg Wunsch 	return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default);
722d6f907dcSJoerg Wunsch }
723d6f907dcSJoerg Wunsch 
724d6f907dcSJoerg Wunsch static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.";
725d6f907dcSJoerg Wunsch 
726d6f907dcSJoerg Wunsch char           *
727d6f907dcSJoerg Wunsch pw_pwcrypt(char *password)
728d6f907dcSJoerg Wunsch {
729d6f907dcSJoerg Wunsch 	int             i;
730d6f907dcSJoerg Wunsch 	char            salt[12];
731d6f907dcSJoerg Wunsch 
732d6f907dcSJoerg Wunsch 	static char     buf[256];
733d6f907dcSJoerg Wunsch 
734d6f907dcSJoerg Wunsch 	/*
735d6f907dcSJoerg Wunsch 	 * Calculate a salt value
736d6f907dcSJoerg Wunsch 	 */
737b7d2ba7cSDavid Nugent 	srandom((unsigned) (time(NULL) ^ getpid()));
738d6f907dcSJoerg Wunsch 	for (i = 0; i < 8; i++)
739d6f907dcSJoerg Wunsch 		salt[i] = chars[random() % 63];
740d6f907dcSJoerg Wunsch 	salt[i] = '\0';
741d6f907dcSJoerg Wunsch 
742d6f907dcSJoerg Wunsch 	return strcpy(buf, crypt(password, salt));
743d6f907dcSJoerg Wunsch }
744d6f907dcSJoerg Wunsch 
7452e3db6fbSDavid Nugent #if defined(__FreeBSD__)
7462e3db6fbSDavid Nugent 
7472e3db6fbSDavid Nugent #if defined(USE_MD5RAND)
748b7d2ba7cSDavid Nugent u_char *
7492e3db6fbSDavid Nugent pw_getrand(u_char *buf, int len)	/* cryptographically secure rng */
750b7d2ba7cSDavid Nugent {
7512e3db6fbSDavid Nugent 	int i;
7522e3db6fbSDavid Nugent 	for (i=0;i<len;i+=16) {
7532e3db6fbSDavid Nugent 		u_char ubuf[16];
7542e3db6fbSDavid Nugent 
755b7d2ba7cSDavid Nugent 		MD5_CTX md5_ctx;
756b7d2ba7cSDavid Nugent 		struct timeval tv, tvo;
757b7d2ba7cSDavid Nugent 		struct rusage ru;
758b7d2ba7cSDavid Nugent 		int n=0;
759b7d2ba7cSDavid Nugent 		int t;
7602e3db6fbSDavid Nugent 
761b7d2ba7cSDavid Nugent 		MD5Init (&md5_ctx);
762b7d2ba7cSDavid Nugent 		t=getpid();
763b7d2ba7cSDavid Nugent 		MD5Update (&md5_ctx, (u_char*)&t, sizeof t);
764b7d2ba7cSDavid Nugent 		t=getppid();
765b7d2ba7cSDavid Nugent 		MD5Update (&md5_ctx, (u_char*)&t, sizeof t);
766b7d2ba7cSDavid Nugent 		gettimeofday (&tvo, NULL);
767b7d2ba7cSDavid Nugent 		do {
768b7d2ba7cSDavid Nugent 			getrusage (RUSAGE_SELF, &ru);
769b7d2ba7cSDavid Nugent 			MD5Update (&md5_ctx, (u_char*)&ru, sizeof ru);
770b7d2ba7cSDavid Nugent 			gettimeofday (&tv, NULL);
771b7d2ba7cSDavid Nugent 			MD5Update (&md5_ctx, (u_char*)&tv, sizeof tv);
772b7d2ba7cSDavid Nugent 		} while (n++<20 || tv.tv_usec-tvo.tv_usec<100*1000);
7732e3db6fbSDavid Nugent 		MD5Final (ubuf, &md5_ctx);
7742e3db6fbSDavid Nugent 		memcpy(buf+i, ubuf, MIN(16, len-n));
775b7d2ba7cSDavid Nugent 	}
7762e3db6fbSDavid Nugent 	return buf;
7772e3db6fbSDavid Nugent }
7782e3db6fbSDavid Nugent 
7792e3db6fbSDavid Nugent #else	/* Use random device (preferred) */
780b7d2ba7cSDavid Nugent 
781b7d2ba7cSDavid Nugent static u_char *
782b7d2ba7cSDavid Nugent pw_getrand(u_char *buf, int len)
783b7d2ba7cSDavid Nugent {
784b7d2ba7cSDavid Nugent 	int		fd;
785b7d2ba7cSDavid Nugent 	fd = open("/dev/urandom", O_RDONLY);
7862e3db6fbSDavid Nugent 	if (fd==-1)
7872e3db6fbSDavid Nugent 		cmderr(EX_OSFILE, "can't open /dev/urandom: %s\n", strerror(errno));
7882e3db6fbSDavid Nugent 	else if (read(fd, buf, len)!=len)
7892e3db6fbSDavid Nugent 		cmderr(EX_IOERR, "read error on /dev/urandom\n");
790b7d2ba7cSDavid Nugent 	close(fd);
791b7d2ba7cSDavid Nugent 	return buf;
792b7d2ba7cSDavid Nugent }
793d6f907dcSJoerg Wunsch 
7942e3db6fbSDavid Nugent #endif
7952e3db6fbSDavid Nugent 
7962e3db6fbSDavid Nugent #else	/* Portable version */
7972e3db6fbSDavid Nugent 
7982e3db6fbSDavid Nugent static u_char *
7992e3db6fbSDavid Nugent pw_getrand(u_char *buf, int len)
8002e3db6fbSDavid Nugent {
8012e3db6fbSDavid Nugent 	int i;
8022e3db6fbSDavid Nugent 
8032e3db6fbSDavid Nugent 	for (i = 0; i < len; i++) {
8042e3db6fbSDavid Nugent 		unsigned val = random();
8052e3db6fbSDavid Nugent 		/* Use all bits in the random value */
8062e3db6fbSDavid Nugent 		buf[i]=(u_char)((val >> 24) ^ (val >> 16) ^ (val >> 8) ^ val);
8072e3db6fbSDavid Nugent 	}
8082e3db6fbSDavid Nugent 	return buf;
8092e3db6fbSDavid Nugent }
8102e3db6fbSDavid Nugent 
8112e3db6fbSDavid Nugent #endif
8122e3db6fbSDavid Nugent 
813d6f907dcSJoerg Wunsch static char    *
814d6f907dcSJoerg Wunsch pw_password(struct userconf * cnf, struct cargs * args, char const * user)
815d6f907dcSJoerg Wunsch {
816d6f907dcSJoerg Wunsch 	int             i, l;
817d6f907dcSJoerg Wunsch 	char            pwbuf[32];
818b7d2ba7cSDavid Nugent 	u_char		rndbuf[sizeof pwbuf];
819d6f907dcSJoerg Wunsch 
820d6f907dcSJoerg Wunsch 	switch (cnf->default_password) {
821d6f907dcSJoerg Wunsch 	case -1:		/* Random password */
822b7d2ba7cSDavid Nugent 		srandom((unsigned) (time(NULL) ^ getpid()));
823d6f907dcSJoerg Wunsch 		l = (random() % 8 + 8);	/* 8 - 16 chars */
824b7d2ba7cSDavid Nugent 		pw_getrand(rndbuf, l);
825d6f907dcSJoerg Wunsch 		for (i = 0; i < l; i++)
826b7d2ba7cSDavid Nugent 			pwbuf[i] = chars[rndbuf[i] % sizeof(chars)];
827d6f907dcSJoerg Wunsch 		pwbuf[i] = '\0';
828d6f907dcSJoerg Wunsch 
829d6f907dcSJoerg Wunsch 		/*
830d6f907dcSJoerg Wunsch 		 * We give this information back to the user
831d6f907dcSJoerg Wunsch 		 */
83248aee7f3SJoerg Wunsch 		if (getarg(args, 'h') == NULL && getarg(args, 'N') == NULL) {
833d6f907dcSJoerg Wunsch 			if (isatty(0))
834d6f907dcSJoerg Wunsch 				printf("Password is: ");
835d6f907dcSJoerg Wunsch 			printf("%s\n", pwbuf);
836d6f907dcSJoerg Wunsch 			fflush(stdout);
837d6f907dcSJoerg Wunsch 		}
838d6f907dcSJoerg Wunsch 		break;
839d6f907dcSJoerg Wunsch 
840d6f907dcSJoerg Wunsch 	case -2:		/* No password at all! */
841d6f907dcSJoerg Wunsch 		return "";
842d6f907dcSJoerg Wunsch 
843d6f907dcSJoerg Wunsch 	case 0:		/* No login - default */
844d6f907dcSJoerg Wunsch 	default:
845d6f907dcSJoerg Wunsch 		return "*";
846d6f907dcSJoerg Wunsch 
847d6f907dcSJoerg Wunsch 	case 1:		/* user's name */
848d6f907dcSJoerg Wunsch 		strncpy(pwbuf, user, sizeof pwbuf);
849d6f907dcSJoerg Wunsch 		pwbuf[sizeof pwbuf - 1] = '\0';
850d6f907dcSJoerg Wunsch 		break;
851d6f907dcSJoerg Wunsch 	}
852d6f907dcSJoerg Wunsch 	return pw_pwcrypt(pwbuf);
853d6f907dcSJoerg Wunsch }
854d6f907dcSJoerg Wunsch 
855d6f907dcSJoerg Wunsch 
856d6f907dcSJoerg Wunsch static int
857d6f907dcSJoerg Wunsch print_user(struct passwd * pwd, int pretty)
858d6f907dcSJoerg Wunsch {
859d6f907dcSJoerg Wunsch 	if (!pretty) {
860d6f907dcSJoerg Wunsch 		char            buf[_UC_MAXLINE];
861d6f907dcSJoerg Wunsch 
862d6f907dcSJoerg Wunsch 		fmtpwent(buf, pwd);
863d6f907dcSJoerg Wunsch 		fputs(buf, stdout);
864d6f907dcSJoerg Wunsch 	} else {
86548aee7f3SJoerg Wunsch 		int		j;
866d6f907dcSJoerg Wunsch 		char           *p;
867d6f907dcSJoerg Wunsch 		struct group   *grp = getgrgid(pwd->pw_gid);
868d6f907dcSJoerg Wunsch 		char            uname[60] = "User &", office[60] = "[None]",
869d6f907dcSJoerg Wunsch 		                wphone[60] = "[None]", hphone[60] = "[None]";
8702e3db6fbSDavid Nugent 		char		acexpire[32] = "[None]", pwexpire[32] = "[None]";
8712e3db6fbSDavid Nugent 		struct tm *    tptr;
872d6f907dcSJoerg Wunsch 
873d6f907dcSJoerg Wunsch 		if ((p = strtok(pwd->pw_gecos, ",")) != NULL) {
874d6f907dcSJoerg Wunsch 			strncpy(uname, p, sizeof uname);
875d6f907dcSJoerg Wunsch 			uname[sizeof uname - 1] = '\0';
876d6f907dcSJoerg Wunsch 			if ((p = strtok(NULL, ",")) != NULL) {
877d6f907dcSJoerg Wunsch 				strncpy(office, p, sizeof office);
878d6f907dcSJoerg Wunsch 				office[sizeof office - 1] = '\0';
879d6f907dcSJoerg Wunsch 				if ((p = strtok(NULL, ",")) != NULL) {
880d6f907dcSJoerg Wunsch 					strncpy(wphone, p, sizeof wphone);
881d6f907dcSJoerg Wunsch 					wphone[sizeof wphone - 1] = '\0';
882d6f907dcSJoerg Wunsch 					if ((p = strtok(NULL, "")) != NULL) {
883d6f907dcSJoerg Wunsch 						strncpy(hphone, p, sizeof hphone);
884d6f907dcSJoerg Wunsch 						hphone[sizeof hphone - 1] = '\0';
885d6f907dcSJoerg Wunsch 					}
886d6f907dcSJoerg Wunsch 				}
887d6f907dcSJoerg Wunsch 			}
888d6f907dcSJoerg Wunsch 		}
889d6f907dcSJoerg Wunsch 		/*
890d6f907dcSJoerg Wunsch 		 * Handle '&' in gecos field
891d6f907dcSJoerg Wunsch 		 */
892d6f907dcSJoerg Wunsch 		if ((p = strchr(uname, '&')) != NULL) {
893d6f907dcSJoerg Wunsch 			int             l = strlen(pwd->pw_name);
894d6f907dcSJoerg Wunsch 			int             m = strlen(p);
895d6f907dcSJoerg Wunsch 
896d6f907dcSJoerg Wunsch 			memmove(p + l, p + 1, m);
897d6f907dcSJoerg Wunsch 			memmove(p, pwd->pw_name, l);
898d6f907dcSJoerg Wunsch 			*p = (char) toupper(*p);
899d6f907dcSJoerg Wunsch 		}
9002e3db6fbSDavid Nugent 		if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL)
9012e3db6fbSDavid Nugent 		  strftime(acexpire, sizeof acexpire, "%c", tptr);
9022e3db6fbSDavid Nugent 		if (pwd->pw_change > (time_t)9 && (tptr = localtime(&pwd->pw_change)) != NULL)
9032e3db6fbSDavid Nugent 		  strftime(pwexpire, sizeof pwexpire, "%c", tptr);
904d6f907dcSJoerg Wunsch 		printf("Login Name : %-10s   #%-22ld  Group : %-10s   #%ld\n"
905d6f907dcSJoerg Wunsch 		       " Full Name : %s\n"
906d6f907dcSJoerg Wunsch 		       "      Home : %-32.32s      Class : %s\n"
907d6f907dcSJoerg Wunsch 		       "     Shell : %-32.32s     Office : %s\n"
9082e3db6fbSDavid Nugent 		       "Work Phone : %-32.32s Home Phone : %s\n"
9092e3db6fbSDavid Nugent 		       "Acc Expire : %-32.32s Pwd Expire : %s\n",
910d6f907dcSJoerg Wunsch 		       pwd->pw_name, (long) pwd->pw_uid,
911d6f907dcSJoerg Wunsch 		       grp ? grp->gr_name : "(invalid)", (long) pwd->pw_gid,
912d6f907dcSJoerg Wunsch 		       uname, pwd->pw_dir, pwd->pw_class,
9132e3db6fbSDavid Nugent 		       pwd->pw_shell, office, wphone, hphone,
9142e3db6fbSDavid Nugent 		       acexpire, pwexpire);
91548aee7f3SJoerg Wunsch 	        setgrent();
91648aee7f3SJoerg Wunsch 		j = 0;
91748aee7f3SJoerg Wunsch 		while ((grp=getgrent()) != NULL)
91848aee7f3SJoerg Wunsch 		{
91948aee7f3SJoerg Wunsch 			int     i = 0;
92048aee7f3SJoerg Wunsch 			while (i < _UC_MAXGROUPS && grp->gr_mem[i] != NULL)
92148aee7f3SJoerg Wunsch 			{
92248aee7f3SJoerg Wunsch 				if (strcmp(grp->gr_mem[i], pwd->pw_name)==0)
92348aee7f3SJoerg Wunsch 				{
92448aee7f3SJoerg Wunsch 					printf(j++ == 0 ? "    Groups : %s" : ",%s", grp->gr_name);
92548aee7f3SJoerg Wunsch 					break;
926d6f907dcSJoerg Wunsch 				}
92748aee7f3SJoerg Wunsch 				++i;
92848aee7f3SJoerg Wunsch 			}
92948aee7f3SJoerg Wunsch 		}
93048aee7f3SJoerg Wunsch 		endgrent();
93148aee7f3SJoerg Wunsch 		printf("%s\n", j ? "\n" : "");
93248aee7f3SJoerg Wunsch 	}
93348aee7f3SJoerg Wunsch 	return EXIT_SUCCESS;
934d6f907dcSJoerg Wunsch }
935d6f907dcSJoerg Wunsch 
936d6f907dcSJoerg Wunsch static char    *
937d6f907dcSJoerg Wunsch pw_checkname(char *name, int gecos)
938d6f907dcSJoerg Wunsch {
939d6f907dcSJoerg Wunsch 	int             l = 0;
940669d2046SJoerg Wunsch 	char const     *notch = gecos ? ":" : " ,\t:+-&#%$^()!@~*?<>=|\\/\"";
941d6f907dcSJoerg Wunsch 
942d6f907dcSJoerg Wunsch 	while (name[l]) {
943669d2046SJoerg Wunsch 		if (strchr(notch, name[l]) != NULL || name[l] < ' ' || name[l] > 126)
944669d2046SJoerg Wunsch 			cmderr(EX_DATAERR, (name[l]<' ' || (unsigned char)name[l] > 126)
945669d2046SJoerg Wunsch 					    ? "invalid character `%c' in field\n"
946669d2046SJoerg Wunsch 					    : "invalid character 0x$02x in field\n",
947669d2046SJoerg Wunsch 					    name[l]);
948d6f907dcSJoerg Wunsch 		++l;
949d6f907dcSJoerg Wunsch 	}
950669d2046SJoerg Wunsch 	if (!gecos && l > MAXLOGNAME)
95148aee7f3SJoerg Wunsch 		cmderr(EX_DATAERR, "name too long `%s'\n", name);
952d6f907dcSJoerg Wunsch 	return name;
953d6f907dcSJoerg Wunsch }
954d6f907dcSJoerg Wunsch 
955d6f907dcSJoerg Wunsch 
956d6f907dcSJoerg Wunsch static void
957d6f907dcSJoerg Wunsch rmat(uid_t uid)
958d6f907dcSJoerg Wunsch {
959d6f907dcSJoerg Wunsch 	DIR            *d = opendir("/var/at/jobs");
960d6f907dcSJoerg Wunsch 
961d6f907dcSJoerg Wunsch 	if (d != NULL) {
962d6f907dcSJoerg Wunsch 		struct dirent  *e;
963d6f907dcSJoerg Wunsch 
964d6f907dcSJoerg Wunsch 		while ((e = readdir(d)) != NULL) {
965d6f907dcSJoerg Wunsch 			struct stat     st;
966d6f907dcSJoerg Wunsch 
967d6f907dcSJoerg Wunsch 			if (strncmp(e->d_name, ".lock", 5) != 0 &&
968d6f907dcSJoerg Wunsch 			    stat(e->d_name, &st) == 0 &&
969d6f907dcSJoerg Wunsch 			    !S_ISDIR(st.st_mode) &&
970d6f907dcSJoerg Wunsch 			    st.st_uid == uid) {
971d6f907dcSJoerg Wunsch 				char            tmp[MAXPATHLEN];
972d6f907dcSJoerg Wunsch 
973d6f907dcSJoerg Wunsch 				sprintf(tmp, "/usr/bin/atrm %s", e->d_name);
974d6f907dcSJoerg Wunsch 				system(tmp);
975d6f907dcSJoerg Wunsch 			}
976d6f907dcSJoerg Wunsch 		}
977d6f907dcSJoerg Wunsch 		closedir(d);
978d6f907dcSJoerg Wunsch 	}
979d6f907dcSJoerg Wunsch }
980