grupd.c revision 283810 
1/*-
2 * Copyright (C) 1996
3 *	David L. Nugent.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 *
14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#ifndef lint
28static const char rcsid[] =
29  "$FreeBSD: head/usr.sbin/pw/grupd.c 283810 2015-05-31 10:14:13Z bapt $";
30#endif /* not lint */
31
32#include <grp.h>
33#include <libutil.h>
34#include <err.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38#include <sys/param.h>
39
40#include "pwupd.h"
41
42static char * grpath = _PATH_PWD;
43
44int
45setgrdir(const char * dir)
46{
47	if (dir == NULL)
48		return -1;
49	else
50		grpath = strdup(dir);
51	if (grpath == NULL)
52		return -1;
53
54	return 0;
55}
56
57char *
58getgrpath(const char * file)
59{
60	static char pathbuf[MAXPATHLEN];
61
62	snprintf(pathbuf, sizeof pathbuf, "%s/%s", grpath, file);
63	return pathbuf;
64}
65
66static int
67gr_update(struct group * grp, char const * group)
68{
69	int pfd, tfd;
70	struct group *gr = NULL;
71	struct group *old_gr = NULL;
72
73	if (grp != NULL)
74		gr = gr_dup(grp);
75
76	if (group != NULL)
77		old_gr = GETGRNAM(group);
78
79	if (gr_init(grpath, NULL))
80		err(1, "gr_init()");
81
82	if ((pfd = gr_lock()) == -1) {
83		gr_fini();
84		err(1, "gr_lock()");
85	}
86	if ((tfd = gr_tmp(-1)) == -1) {
87		gr_fini();
88		err(1, "gr_tmp()");
89	}
90	if (gr_copy(pfd, tfd, gr, old_gr) == -1) {
91		gr_fini();
92		err(1, "gr_copy()");
93	}
94	if (gr_mkdb() == -1) {
95		gr_fini();
96		err(1, "gr_mkdb()");
97	}
98	free(gr);
99	gr_fini();
100	return 0;
101}
102
103
104int
105addgrent(struct group * grp)
106{
107	return gr_update(grp, NULL);
108}
109
110int
111chggrent(char const * login, struct group * grp)
112{
113	return gr_update(grp, login);
114}
115
116int
117delgrent(struct group * grp)
118{
119
120	return (gr_update(NULL, grp->gr_name));
121}
122