1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1980, 1990, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Robert Elz at The University of Melbourne.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35/*
36 * Turn quota on/off for a filesystem.
37 */
38#include <sys/param.h>
39#include <sys/file.h>
40#include <sys/mount.h>
41#include <ufs/ufs/quota.h>
42#include <err.h>
43#include <fstab.h>
44#include <libutil.h>
45#include <stdio.h>
46#include <stdlib.h>
47#include <string.h>
48#include <unistd.h>
49
50static const char *qfextension[] = INITQFNAMES;
51
52static int	aflag;		/* all filesystems */
53static int	gflag;		/* operate on group quotas */
54static int	uflag;		/* operate on user quotas */
55static int	vflag;		/* verbose */
56
57static int oneof(char *, char *[], int);
58static int quotaonoff(struct fstab *fs, int, int);
59static void usage(void) __dead2;
60
61int
62main(int argc, char **argv)
63{
64	struct fstab *fs;
65	const char *whoami;
66	long argnum, done = 0;
67	int ch, i, offmode = 0, errs = 0;
68
69	whoami = getprogname();
70	if (strcmp(whoami, "quotaoff") == 0)
71		offmode++;
72	else if (strcmp(whoami, "quotaon") != 0)
73		errx(1, "name must be quotaon or quotaoff");
74	while ((ch = getopt(argc, argv, "avug")) != -1) {
75		switch(ch) {
76		case 'a':
77			aflag++;
78			break;
79		case 'g':
80			gflag++;
81			break;
82		case 'u':
83			uflag++;
84			break;
85		case 'v':
86			vflag++;
87			break;
88		default:
89			usage();
90		}
91	}
92	argc -= optind;
93	argv += optind;
94	if (argc <= 0 && !aflag)
95		usage();
96	if (!gflag && !uflag) {
97		gflag++;
98		uflag++;
99	}
100	setfsent();
101	while ((fs = getfsent()) != NULL) {
102		if (strcmp(fs->fs_vfstype, "ufs") ||
103		    strcmp(fs->fs_type, FSTAB_RW))
104			continue;
105		if (aflag) {
106			if (gflag)
107				errs += quotaonoff(fs, offmode, GRPQUOTA);
108			if (uflag)
109				errs += quotaonoff(fs, offmode, USRQUOTA);
110			continue;
111		}
112		if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 ||
113		    (argnum = oneof(fs->fs_spec, argv, argc)) >= 0) {
114			done |= 1 << argnum;
115			if (gflag)
116				errs += quotaonoff(fs, offmode, GRPQUOTA);
117			if (uflag)
118				errs += quotaonoff(fs, offmode, USRQUOTA);
119		}
120	}
121	endfsent();
122	for (i = 0; i < argc; i++)
123		if ((done & (1 << i)) == 0)
124			warnx("%s not found in fstab", argv[i]);
125	exit(errs);
126}
127
128static void
129usage(void)
130{
131
132	fprintf(stderr, "%s\n%s\n%s\n%s\n",
133		"usage: quotaon [-g] [-u] [-v] -a",
134		"       quotaon [-g] [-u] [-v] filesystem ...",
135		"       quotaoff [-g] [-u] [-v] -a",
136		"       quotaoff [-g] [-u] [-v] filesystem ...");
137	exit(1);
138}
139
140static int
141quotaonoff(struct fstab *fs, int offmode, int type)
142{
143	struct quotafile *qf;
144
145	if ((qf = quota_open(fs, type, O_RDONLY)) == NULL)
146		return (0);
147	if (offmode) {
148		if (quota_off(qf) != 0) {
149			warn("%s", quota_fsname(qf));
150			return (1);
151		}
152		if (vflag)
153			printf("%s: quotas turned off\n", quota_fsname(qf));
154		quota_close(qf);
155		return(0);
156	}
157	if (quota_on(qf) != 0) {
158		warn("using %s on %s", quota_qfname(qf), quota_fsname(qf));
159		return (1);
160	}
161	if (vflag)
162		printf("%s: %s quotas turned on with data file %s\n",
163		    quota_fsname(qf), qfextension[type], quota_qfname(qf));
164	quota_close(qf);
165	return(0);
166}
167
168/*
169 * Check to see if target appears in list of size cnt.
170 */
171static int
172oneof(char *target, char *list[], int cnt)
173{
174	int i;
175
176	for (i = 0; i < cnt; i++)
177		if (strcmp(target, list[i]) == 0)
178			return (i);
179	return (-1);
180}
181