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
50 static const char *qfextension[] = INITQFNAMES;
51
52 static int aflag; /* all filesystems */
53 static int gflag; /* operate on group quotas */
54 static int uflag; /* operate on user quotas */
55 static int vflag; /* verbose */
56
57 static int oneof(char *, char *[], int);
58 static int quotaonoff(struct fstab *fs, int, int);
59 static void usage(void) __dead2;
60
61 int
main(int argc,char ** argv)62 main(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
128 static void
usage(void)129 usage(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
140 static int
quotaonoff(struct fstab * fs,int offmode,int type)141 quotaonoff(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 */
171 static int
oneof(char * target,char * list[],int cnt)172 oneof(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