quotaon.c revision 1.7
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[] = "from: @(#)quotaon.c 8.1 (Berkeley) 6/6/93";*/ 45 static char *rcsid = "$Id: quotaon.c,v 1.7 1996/03/30 23:46:04 mark Exp $"; 46 #endif /* not lint */ 47 48 /* 49 * Turn quota on/off for a filesystem. 50 */ 51 #include <sys/param.h> 52 #include <sys/file.h> 53 #include <sys/mount.h> 54 #include <ufs/ufs/quota.h> 55 #include <stdio.h> 56 #include <string.h> 57 #include <fstab.h> 58 59 char *qfname = QUOTAFILENAME; 60 char *qfextension[] = INITQFNAMES; 61 62 int aflag; /* all file systems */ 63 int gflag; /* operate on group quotas */ 64 int uflag; /* operate on user quotas */ 65 int vflag; /* verbose */ 66 67 main(argc, argv) 68 int argc; 69 char **argv; 70 { 71 register struct fstab *fs; 72 char *qfnp, *whoami, *rindex(); 73 long argnum, done = 0; 74 int i, offmode = 0, errs = 0; 75 extern char *optarg; 76 extern int optind; 77 int ch; 78 79 whoami = rindex(*argv, '/') + 1; 80 if (whoami == (char *)1) 81 whoami = *argv; 82 if (strcmp(whoami, "quotaoff") == 0) 83 offmode++; 84 else if (strcmp(whoami, "quotaon") != 0) { 85 fprintf(stderr, "Name must be quotaon or quotaoff not %s\n", 86 whoami); 87 exit(1); 88 } 89 while ((ch = getopt(argc, argv, "avug")) != -1) { 90 switch(ch) { 91 case 'a': 92 aflag++; 93 break; 94 case 'g': 95 gflag++; 96 break; 97 case 'u': 98 uflag++; 99 break; 100 case 'v': 101 vflag++; 102 break; 103 default: 104 usage(whoami); 105 } 106 } 107 argc -= optind; 108 argv += optind; 109 if (argc <= 0 && !aflag) 110 usage(whoami); 111 if (!gflag && !uflag) { 112 gflag++; 113 uflag++; 114 } 115 setfsent(); 116 while ((fs = getfsent()) != NULL) { 117 if (strcmp(fs->fs_vfstype, "ffs") || 118 strcmp(fs->fs_type, FSTAB_RW)) 119 continue; 120 if (aflag) { 121 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) 122 errs += quotaonoff(fs, offmode, GRPQUOTA, qfnp); 123 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) 124 errs += quotaonoff(fs, offmode, USRQUOTA, qfnp); 125 continue; 126 } 127 if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 || 128 (argnum = oneof(fs->fs_spec, argv, argc)) >= 0) { 129 done |= 1 << argnum; 130 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) 131 errs += quotaonoff(fs, offmode, GRPQUOTA, qfnp); 132 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) 133 errs += quotaonoff(fs, offmode, USRQUOTA, qfnp); 134 } 135 } 136 endfsent(); 137 for (i = 0; i < argc; i++) 138 if ((done & (1 << i)) == 0) 139 fprintf(stderr, "%s not found in fstab\n", 140 argv[i]); 141 exit(errs); 142 } 143 144 usage(whoami) 145 char *whoami; 146 { 147 148 fprintf(stderr, "Usage:\n\t%s [-g] [-u] [-v] -a\n", whoami); 149 fprintf(stderr, "\t%s [-g] [-u] [-v] filesys ...\n", whoami); 150 exit(1); 151 } 152 153 quotaonoff(fs, offmode, type, qfpathname) 154 register struct fstab *fs; 155 int offmode, type; 156 char *qfpathname; 157 { 158 159 if (strcmp(fs->fs_file, "/") && readonly(fs)) 160 return (1); 161 if (offmode) { 162 if (quotactl(fs->fs_file, QCMD(Q_QUOTAOFF, type), 0, 0) < 0) { 163 fprintf(stderr, "quotaoff: "); 164 perror(fs->fs_file); 165 return (1); 166 } 167 if (vflag) 168 printf("%s: quotas turned off\n", fs->fs_file); 169 return (0); 170 } 171 if (quotactl(fs->fs_file, QCMD(Q_QUOTAON, type), 0, qfpathname) < 0) { 172 fprintf(stderr, "quotaon: using %s on", qfpathname); 173 perror(fs->fs_file); 174 return (1); 175 } 176 if (vflag) 177 printf("%s: %s quotas turned on\n", fs->fs_file, 178 qfextension[type]); 179 return (0); 180 } 181 182 /* 183 * Check to see if target appears in list of size cnt. 184 */ 185 oneof(target, list, cnt) 186 register char *target, *list[]; 187 int cnt; 188 { 189 register int i; 190 191 for (i = 0; i < cnt; i++) 192 if (strcmp(target, list[i]) == 0) 193 return (i); 194 return (-1); 195 } 196 197 /* 198 * Check to see if a particular quota is to be enabled. 199 */ 200 hasquota(fs, type, qfnamep) 201 register struct fstab *fs; 202 int type; 203 char **qfnamep; 204 { 205 register char *opt; 206 char *cp, *index(), *strtok(); 207 static char initname, usrname[100], grpname[100]; 208 static char buf[BUFSIZ]; 209 210 if (!initname) { 211 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 212 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 213 initname = 1; 214 } 215 strcpy(buf, fs->fs_mntops); 216 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 217 if (cp = index(opt, '=')) 218 *cp++ = '\0'; 219 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 220 break; 221 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 222 break; 223 } 224 if (!opt) 225 return (0); 226 if (cp) { 227 *qfnamep = cp; 228 return (1); 229 } 230 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 231 *qfnamep = buf; 232 return (1); 233 } 234 235 /* 236 * Verify file system is mounted and not readonly. 237 */ 238 readonly(fs) 239 register struct fstab *fs; 240 { 241 struct statfs fsbuf; 242 243 if (statfs(fs->fs_file, &fsbuf) < 0 || 244 strcmp(fsbuf.f_mntonname, fs->fs_file) || 245 strcmp(fsbuf.f_mntfromname, fs->fs_spec)) { 246 printf("%s: not mounted\n", fs->fs_file); 247 return (1); 248 } 249 if (fsbuf.f_flags & MNT_RDONLY) { 250 printf("%s: mounted read-only\n", fs->fs_file); 251 return (1); 252 } 253 return (0); 254 } 255
Indexes created Thu Oct 02 07:10:07 GMT 2025