1 /* 2 * Copyright (c) 1980, 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Robert Elz at The University of Melbourne. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 static const char copyright[] = 39 "@(#) Copyright (c) 1980, 1990, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)quotaon.c 8.1 (Berkeley) 6/6/93"; 46 #endif 47 static const char rcsid[] = 48 "$FreeBSD$"; 49 #endif /* not lint */ 50 51 /* 52 * Turn quota on/off for a filesystem. 53 */ 54 #include <sys/param.h> 55 #include <sys/file.h> 56 #include <sys/mount.h> 57 #include <ufs/ufs/quota.h> 58 #include <err.h> 59 #include <fstab.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <unistd.h> 64 65 char *qfname = QUOTAFILENAME; 66 char *qfextension[] = INITQFNAMES; 67 68 int aflag; /* all filesystems */ 69 int gflag; /* operate on group quotas */ 70 int uflag; /* operate on user quotas */ 71 int vflag; /* verbose */ 72 73 int hasquota __P((struct fstab *, int, char **)); 74 int oneof __P((char *, char *[], int)); 75 int quotaonoff __P((struct fstab *fs, int, int, char *)); 76 int readonly __P((struct fstab *)); 77 static void usage __P((void)); 78 79 int 80 main(argc, argv) 81 int argc; 82 char **argv; 83 { 84 register struct fstab *fs; 85 char ch, *qfnp, *whoami; 86 long argnum, done = 0; 87 int i, offmode = 0, errs = 0; 88 89 whoami = rindex(*argv, '/') + 1; 90 if (whoami == (char *)1) 91 whoami = *argv; 92 if (strcmp(whoami, "quotaoff") == 0) 93 offmode++; 94 else if (strcmp(whoami, "quotaon") != 0) 95 errx(1, "name must be quotaon or quotaoff"); 96 while ((ch = getopt(argc, argv, "avug")) != -1) { 97 switch(ch) { 98 case 'a': 99 aflag++; 100 break; 101 case 'g': 102 gflag++; 103 break; 104 case 'u': 105 uflag++; 106 break; 107 case 'v': 108 vflag++; 109 break; 110 default: 111 usage(); 112 } 113 } 114 argc -= optind; 115 argv += optind; 116 if (argc <= 0 && !aflag) 117 usage(); 118 if (!gflag && !uflag) { 119 gflag++; 120 uflag++; 121 } 122 setfsent(); 123 while ((fs = getfsent()) != NULL) { 124 if (strcmp(fs->fs_vfstype, "ufs") || 125 strcmp(fs->fs_type, FSTAB_RW)) 126 continue; 127 if (aflag) { 128 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) 129 errs += quotaonoff(fs, offmode, GRPQUOTA, qfnp); 130 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) 131 errs += quotaonoff(fs, offmode, USRQUOTA, qfnp); 132 continue; 133 } 134 if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 || 135 (argnum = oneof(fs->fs_spec, argv, argc)) >= 0) { 136 done |= 1 << argnum; 137 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) 138 errs += quotaonoff(fs, offmode, GRPQUOTA, qfnp); 139 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) 140 errs += quotaonoff(fs, offmode, USRQUOTA, qfnp); 141 } 142 } 143 endfsent(); 144 for (i = 0; i < argc; i++) 145 if ((done & (1 << i)) == 0) 146 warnx("%s not found in fstab", argv[i]); 147 exit(errs); 148 } 149 150 static void 151 usage() 152 { 153 154 fprintf(stderr, "%s\n%s\n%s\n%s\n", 155 "usage: quotaon [-g] [-u] [-v] -a", 156 " quotaon [-g] [-u] [-v] filesystem ...", 157 " quotaoff [-g] [-u] [-v] -a", 158 " quotaoff [-g] [-u] [-v] filesystem ..."); 159 exit(1); 160 } 161 162 int 163 quotaonoff(fs, offmode, type, qfpathname) 164 register struct fstab *fs; 165 int offmode, type; 166 char *qfpathname; 167 { 168 169 if (strcmp(fs->fs_file, "/") && readonly(fs)) 170 return (1); 171 if (offmode) { 172 if (quotactl(fs->fs_file, QCMD(Q_QUOTAOFF, type), 0, 0) < 0) { 173 warn("%s", fs->fs_file); 174 return (1); 175 } 176 if (vflag) 177 printf("%s: quotas turned off\n", fs->fs_file); 178 return (0); 179 } 180 if (quotactl(fs->fs_file, QCMD(Q_QUOTAON, type), 0, qfpathname) < 0) { 181 warnx("using %s on", qfpathname); 182 warn("%s", fs->fs_file); 183 return (1); 184 } 185 if (vflag) 186 printf("%s: %s quotas turned on\n", fs->fs_file, 187 qfextension[type]); 188 return (0); 189 } 190 191 /* 192 * Check to see if target appears in list of size cnt. 193 */ 194 int 195 oneof(target, list, cnt) 196 register char *target, *list[]; 197 int cnt; 198 { 199 register int i; 200 201 for (i = 0; i < cnt; i++) 202 if (strcmp(target, list[i]) == 0) 203 return (i); 204 return (-1); 205 } 206 207 /* 208 * Check to see if a particular quota is to be enabled. 209 */ 210 int 211 hasquota(fs, type, qfnamep) 212 register struct fstab *fs; 213 int type; 214 char **qfnamep; 215 { 216 register char *opt; 217 char *cp; 218 static char initname, usrname[100], grpname[100]; 219 static char buf[BUFSIZ]; 220 221 if (!initname) { 222 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 223 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 224 initname = 1; 225 } 226 strcpy(buf, fs->fs_mntops); 227 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 228 if ((cp = index(opt, '='))) 229 *cp++ = '\0'; 230 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 231 break; 232 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 233 break; 234 } 235 if (!opt) 236 return (0); 237 if (cp) { 238 *qfnamep = cp; 239 return (1); 240 } 241 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 242 *qfnamep = buf; 243 return (1); 244 } 245 246 /* 247 * Verify filesystem is mounted and not readonly. 248 */ 249 int 250 readonly(fs) 251 register struct fstab *fs; 252 { 253 struct statfs fsbuf; 254 255 if (statfs(fs->fs_file, &fsbuf) < 0 || 256 strcmp(fsbuf.f_mntonname, fs->fs_file) || 257 strcmp(fsbuf.f_mntfromname, fs->fs_spec)) { 258 printf("%s: not mounted\n", fs->fs_file); 259 return (1); 260 } 261 if (fsbuf.f_flags & MNT_RDONLY) { 262 printf("%s: mounted read-only\n", fs->fs_file); 263 return (1); 264 } 265 return (0); 266 } 267