quotaon.c revision 1.18
1 /* $NetBSD: quotaon.c,v 1.18 2003/02/17 23:48:25 perseant Exp $ */ 2 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 #ifndef lint 41 __COPYRIGHT("@(#) Copyright (c) 1980, 1990, 1993\n\ 42 The Regents of the University of California. All rights reserved.\n"); 43 #endif /* not lint */ 44 45 #ifndef lint 46 #if 0 47 static char sccsid[] = "@(#)quotaon.c 8.1 (Berkeley) 6/6/93"; 48 #else 49 __RCSID("$NetBSD: quotaon.c,v 1.18 2003/02/17 23:48:25 perseant Exp $"); 50 #endif 51 #endif /* not lint */ 52 53 /* 54 * Turn quota on/off for a filesystem. 55 */ 56 #include <sys/param.h> 57 #include <sys/file.h> 58 #include <sys/mount.h> 59 #include <ufs/ufs/quota.h> 60 61 #include <err.h> 62 #include <fstab.h> 63 #include <stdio.h> 64 #include <stdlib.h> 65 #include <string.h> 66 #include <unistd.h> 67 68 char *qfname = QUOTAFILENAME; 69 char *qfextension[] = INITQFNAMES; 70 71 int aflag; /* all file systems */ 72 int gflag; /* operate on group quotas */ 73 int uflag; /* operate on user quotas */ 74 int vflag; /* verbose */ 75 76 int main __P((int, char *[])); 77 78 static void usage __P((void)); 79 static int quotaonoff __P((struct fstab *, int, int, char *)); 80 static int oneof __P((const char *, char *[], int)); 81 static int hasquota __P((struct fstab *, int, char **)); 82 static int readonly __P((struct fstab *)); 83 84 int 85 main(argc, argv) 86 int argc; 87 char *argv[]; 88 { 89 struct fstab *fs; 90 char *qfnp; 91 long argnum, done = 0; 92 int i, offmode = 0, errs = 0; 93 int ch; 94 95 if (strcmp(getprogname(), "quotaoff") == 0) 96 offmode++; 97 else if (strcmp(getprogname(), "quotaon") != 0) 98 errx(1, "Name must be quotaon or quotaoff"); 99 100 while ((ch = getopt(argc, argv, "avug")) != -1) { 101 switch(ch) { 102 case 'a': 103 aflag++; 104 break; 105 case 'g': 106 gflag++; 107 break; 108 case 'u': 109 uflag++; 110 break; 111 case 'v': 112 vflag++; 113 break; 114 default: 115 usage(); 116 break; 117 } 118 } 119 argc -= optind; 120 argv += optind; 121 122 if (argc <= 0 && !aflag) 123 usage(); 124 125 if (!gflag && !uflag) { 126 gflag++; 127 uflag++; 128 } 129 setfsent(); 130 while ((fs = getfsent()) != NULL) { 131 if ((strcmp(fs->fs_vfstype, "ffs") && 132 strcmp(fs->fs_vfstype, "lfs")) || 133 strcmp(fs->fs_type, FSTAB_RW)) 134 continue; 135 if (aflag) { 136 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) 137 errs += quotaonoff(fs, offmode, GRPQUOTA, qfnp); 138 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) 139 errs += quotaonoff(fs, offmode, USRQUOTA, qfnp); 140 continue; 141 } 142 if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 || 143 (argnum = oneof(fs->fs_spec, argv, argc)) >= 0) { 144 done |= 1 << argnum; 145 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) 146 errs += quotaonoff(fs, offmode, GRPQUOTA, qfnp); 147 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) 148 errs += quotaonoff(fs, offmode, USRQUOTA, qfnp); 149 } 150 } 151 endfsent(); 152 for (i = 0; i < argc; i++) 153 if ((done & (1 << i)) == 0) 154 warnx("%s not found in fstab", argv[i]); 155 exit(errs); 156 } 157 158 static void 159 usage() 160 { 161 162 (void) fprintf(stderr, "Usage:\n\t%s [-g] [-u] [-v] -a\n", 163 getprogname()); 164 (void) fprintf(stderr, "\t%s [-g] [-u] [-v] filesys ...\n", 165 getprogname()); 166 exit(1); 167 } 168 169 static int 170 quotaonoff(fs, offmode, type, qfpathname) 171 struct fstab *fs; 172 int offmode, type; 173 char *qfpathname; 174 { 175 176 if (strcmp(fs->fs_file, "/") && readonly(fs)) 177 return (1); 178 if (offmode) { 179 if (quotactl(fs->fs_file, QCMD(Q_QUOTAOFF, type), 0, 0) < 0) { 180 warn("%s", fs->fs_file); 181 return (1); 182 } 183 if (vflag) 184 printf("%s: %s quotas turned off\n", 185 fs->fs_file, qfextension[type]); 186 return (0); 187 } 188 if (quotactl(fs->fs_file, QCMD(Q_QUOTAON, type), 0, qfpathname) < 0) { 189 warn("%s quotas using %s on %s", 190 qfextension[type], qfpathname, fs->fs_file); 191 return (1); 192 } 193 if (vflag) 194 printf("%s: %s quotas turned on\n", fs->fs_file, 195 qfextension[type]); 196 return (0); 197 } 198 199 /* 200 * Check to see if target appears in list of size cnt. 201 */ 202 static int 203 oneof(target, list, cnt) 204 const char *target; 205 char *list[]; 206 int cnt; 207 { 208 int i; 209 210 for (i = 0; i < cnt; i++) 211 if (strcmp(target, list[i]) == 0) 212 return (i); 213 return (-1); 214 } 215 216 /* 217 * Check to see if a particular quota is to be enabled. 218 */ 219 static int 220 hasquota(fs, type, qfnamep) 221 struct fstab *fs; 222 int type; 223 char **qfnamep; 224 { 225 char *opt; 226 char *cp = NULL; 227 static char initname, usrname[100], grpname[100]; 228 static char buf[BUFSIZ]; 229 230 if (!initname) { 231 (void) snprintf(usrname, sizeof(usrname), "%s%s", 232 qfextension[USRQUOTA], qfname); 233 (void) snprintf(grpname, sizeof(grpname), "%s%s", 234 qfextension[GRPQUOTA], qfname); 235 initname = 1; 236 } 237 strcpy(buf, fs->fs_mntops); 238 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 239 if ((cp = strchr(opt, '=')) != NULL) 240 *cp++ = '\0'; 241 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 242 break; 243 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 244 break; 245 } 246 if (!opt) 247 return (0); 248 if (cp) { 249 *qfnamep = cp; 250 return (1); 251 } 252 (void) snprintf(buf, sizeof(buf), "%s/%s.%s", fs->fs_file, qfname, 253 qfextension[type]); 254 *qfnamep = buf; 255 return (1); 256 } 257 258 /* 259 * Verify file system is mounted and not readonly. 260 */ 261 static int 262 readonly(fs) 263 struct fstab *fs; 264 { 265 struct statfs fsbuf; 266 267 if (statfs(fs->fs_file, &fsbuf) < 0 || 268 strcmp(fsbuf.f_mntonname, fs->fs_file) || 269 strcmp(fsbuf.f_mntfromname, fs->fs_spec)) { 270 printf("%s: not mounted\n", fs->fs_file); 271 return (1); 272 } 273 if (fsbuf.f_flags & MNT_RDONLY) { 274 printf("%s: mounted read-only\n", fs->fs_file); 275 return (1); 276 } 277 return (0); 278 } 279
Indexes created Thu Oct 02 07:10:07 GMT 2025