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: stable/10/usr.sbin/pw/grupd.c 310173 2016-12-16 20:10:55Z asomers $";
30#endif /* not lint */
31
32#include <err.h>
33#include <grp.h>
34#include <libutil.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <unistd.h>
38
39#include "pwupd.h"
40
41char *
42getgrpath(const char * file)
43{
44	static char pathbuf[MAXPATHLEN];
45
46	snprintf(pathbuf, sizeof pathbuf, "%s/%s", conf.etcpath, file);
47
48	return (pathbuf);
49}
50
51static int
52gr_update(struct group * grp, char const * group)
53{
54	int pfd, tfd;
55	struct group *gr = NULL;
56	struct group *old_gr = NULL;
57
58	if (grp != NULL)
59		gr = gr_dup(grp);
60
61	if (group != NULL)
62		old_gr = GETGRNAM(group);
63
64	if (gr_init(conf.etcpath, NULL))
65		err(1, "gr_init()");
66
67	if ((pfd = gr_lock()) == -1) {
68		gr_fini();
69		err(1, "gr_lock()");
70	}
71	if ((tfd = gr_tmp(-1)) == -1) {
72		gr_fini();
73		err(1, "gr_tmp()");
74	}
75	if (gr_copy(pfd, tfd, gr, old_gr) == -1) {
76		gr_fini();
77		close(tfd);
78		err(1, "gr_copy()");
79	}
80	fsync(tfd);
81	close(tfd);
82	if (gr_mkdb() == -1) {
83		gr_fini();
84		err(1, "gr_mkdb()");
85	}
86	free(gr);
87	gr_fini();
88	return 0;
89}
90
91
92int
93addgrent(struct group * grp)
94{
95	return gr_update(grp, NULL);
96}
97
98int
99chggrent(char const * login, struct group * grp)
100{
101	return gr_update(grp, login);
102}
103
104int
105delgrent(struct group * grp)
106{
107
108	return (gr_update(NULL, grp->gr_name));
109}
110