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 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 static char sccsid[] = "@(#)quotaon.c 8.1 (Berkeley) 6/6/93"; 45 #endif /* not lint */ 46 47 /* 48 * Turn quota on/off for a filesystem. 49 */ 50 #include <sys/param.h> 51 #include <sys/file.h> 52 #include <sys/mount.h> 53 #include <ufs/ufs/quota.h> 54 #include <stdio.h> 55 #include <fstab.h> 56 57 char *qfname = QUOTAFILENAME; 58 char *qfextension[] = INITQFNAMES; 59 60 int aflag; /* all file systems */ 61 int gflag; /* operate on group quotas */ 62 int uflag; /* operate on user quotas */ 63 int vflag; /* verbose */ 64 65 main(argc, argv) 66 int argc; 67 char **argv; 68 { 69 register struct fstab *fs; 70 char ch, *qfnp, *whoami, *rindex(); 71 long argnum, done = 0; 72 int i, offmode = 0, errs = 0; 73 extern char *optarg; 74 extern int optind; 75 76 whoami = rindex(*argv, '/') + 1; 77 if (whoami == (char *)1) 78 whoami = *argv; 79 if (strcmp(whoami, "quotaoff") == 0) 80 offmode++; 81 else if (strcmp(whoami, "quotaon") != 0) { 82 fprintf(stderr, "Name must be quotaon or quotaoff not %s\n", 83 whoami); 84 exit(1); 85 } 86 while ((ch = getopt(argc, argv, "avug")) != EOF) { 87 switch(ch) { 88 case 'a': 89 aflag++; 90 break; 91 case 'g': 92 gflag++; 93 break; 94 case 'u': 95 uflag++; 96 break; 97 case 'v': 98 vflag++; 99 break; 100 default: 101 usage(whoami); 102 } 103 } 104 argc -= optind; 105 argv += optind; 106 if (argc <= 0 && !aflag) 107 usage(whoami); 108 if (!gflag && !uflag) { 109 gflag++; 110 uflag++; 111 } 112 setfsent(); 113 while ((fs = getfsent()) != NULL) { 114 if (strcmp(fs->fs_vfstype, "ufs") || 115 strcmp(fs->fs_type, FSTAB_RW)) 116 continue; 117 if (aflag) { 118 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) 119 errs += quotaonoff(fs, offmode, GRPQUOTA, qfnp); 120 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) 121 errs += quotaonoff(fs, offmode, USRQUOTA, qfnp); 122 continue; 123 } 124 if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 || 125 (argnum = oneof(fs->fs_spec, argv, argc)) >= 0) { 126 done |= 1 << argnum; 127 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) 128 errs += quotaonoff(fs, offmode, GRPQUOTA, qfnp); 129 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) 130 errs += quotaonoff(fs, offmode, USRQUOTA, qfnp); 131 } 132 } 133 endfsent(); 134 for (i = 0; i < argc; i++) 135 if ((done & (1 << i)) == 0) 136 fprintf(stderr, "%s not found in fstab\n", 137 argv[i]); 138 exit(errs); 139 } 140 141 usage(whoami) 142 char *whoami; 143 { 144 145 fprintf(stderr, "Usage:\n\t%s [-g] [-u] [-v] -a\n", whoami); 146 fprintf(stderr, "\t%s [-g] [-u] [-v] filesys ...\n", whoami); 147 exit(1); 148 } 149 150 quotaonoff(fs, offmode, type, qfpathname) 151 register struct fstab *fs; 152 int offmode, type; 153 char *qfpathname; 154 { 155 156 if (strcmp(fs->fs_file, "/") && readonly(fs)) 157 return (1); 158 if (offmode) { 159 if (quotactl(fs->fs_file, QCMD(Q_QUOTAOFF, type), 0, 0) < 0) { 160 fprintf(stderr, "quotaoff: "); 161 perror(fs->fs_file); 162 return (1); 163 } 164 if (vflag) 165 printf("%s: quotas turned off\n", fs->fs_file); 166 return (0); 167 } 168 if (quotactl(fs->fs_file, QCMD(Q_QUOTAON, type), 0, qfpathname) < 0) { 169 fprintf(stderr, "quotaon: using %s on", qfpathname); 170 perror(fs->fs_file); 171 return (1); 172 } 173 if (vflag) 174 printf("%s: %s quotas turned on\n", fs->fs_file, 175 qfextension[type]); 176 return (0); 177 } 178 179 /* 180 * Check to see if target appears in list of size cnt. 181 */ 182 oneof(target, list, cnt) 183 register char *target, *list[]; 184 int cnt; 185 { 186 register int i; 187 188 for (i = 0; i < cnt; i++) 189 if (strcmp(target, list[i]) == 0) 190 return (i); 191 return (-1); 192 } 193 194 /* 195 * Check to see if a particular quota is to be enabled. 196 */ 197 hasquota(fs, type, qfnamep) 198 register struct fstab *fs; 199 int type; 200 char **qfnamep; 201 { 202 register char *opt; 203 char *cp, *index(), *strtok(); 204 static char initname, usrname[100], grpname[100]; 205 static char buf[BUFSIZ]; 206 207 if (!initname) { 208 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 209 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 210 initname = 1; 211 } 212 strcpy(buf, fs->fs_mntops); 213 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 214 if (cp = index(opt, '=')) 215 *cp++ = '\0'; 216 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 217 break; 218 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 219 break; 220 } 221 if (!opt) 222 return (0); 223 if (cp) { 224 *qfnamep = cp; 225 return (1); 226 } 227 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 228 *qfnamep = buf; 229 return (1); 230 } 231 232 /* 233 * Verify file system is mounted and not readonly. 234 */ 235 readonly(fs) 236 register struct fstab *fs; 237 { 238 struct statfs fsbuf; 239 240 if (statfs(fs->fs_file, &fsbuf) < 0 || 241 strcmp(fsbuf.f_mntonname, fs->fs_file) || 242 strcmp(fsbuf.f_mntfromname, fs->fs_spec)) { 243 printf("%s: not mounted\n", fs->fs_file); 244 return (1); 245 } 246 if (fsbuf.f_flags & MNT_RDONLY) { 247 printf("%s: mounted read-only\n", fs->fs_file); 248 return (1); 249 } 250 return (0); 251 } 252