quotaon.c revision 78720
11573Srgrimes/* 21573Srgrimes * Copyright (c) 1980, 1990, 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * This code is derived from software contributed to Berkeley by 61573Srgrimes * Robert Elz at The University of Melbourne. 71573Srgrimes * 81573Srgrimes * Redistribution and use in source and binary forms, with or without 91573Srgrimes * modification, are permitted provided that the following conditions 101573Srgrimes * are met: 111573Srgrimes * 1. Redistributions of source code must retain the above copyright 121573Srgrimes * notice, this list of conditions and the following disclaimer. 131573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141573Srgrimes * notice, this list of conditions and the following disclaimer in the 151573Srgrimes * documentation and/or other materials provided with the distribution. 16251069Semaste * 3. All advertising materials mentioning features or use of this software 171573Srgrimes * must display the following acknowledgement: 181573Srgrimes * This product includes software developed by the University of 191573Srgrimes * California, Berkeley and its contributors. 201573Srgrimes * 4. Neither the name of the University nor the names of its contributors 211573Srgrimes * may be used to endorse or promote products derived from this software 221573Srgrimes * without specific prior written permission. 231573Srgrimes * 241573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3350476Speter * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341573Srgrimes * SUCH DAMAGE. 35103036Swollman */ 361573Srgrimes 371573Srgrimes#ifndef lint 381573Srgrimesstatic const char copyright[] = 391573Srgrimes"@(#) Copyright (c) 1980, 1990, 1993\n\ 401573Srgrimes The Regents of the University of California. All rights reserved.\n"; 4159460Sphantom#endif /* not lint */ 4259460Sphantom 431573Srgrimes#ifndef lint 4483206Sasmodai#if 0 451573Srgrimesstatic char sccsid[] = "@(#)quotaon.c 8.1 (Berkeley) 6/6/93"; 461573Srgrimes#endif 471573Srgrimesstatic const char rcsid[] = 481573Srgrimes "$FreeBSD: head/usr.sbin/quotaon/quotaon.c 78720 2001-06-24 20:25:23Z dd $"; 491573Srgrimes#endif /* not lint */ 501573Srgrimes 511573Srgrimes/* 52108040Sru * Turn quota on/off for a filesystem. 531573Srgrimes */ 541573Srgrimes#include <sys/param.h> 551573Srgrimes#include <sys/file.h> 56108040Sru#include <sys/mount.h> 571573Srgrimes#include <ufs/ufs/quota.h> 581573Srgrimes#include <err.h> 59103036Swollman#include <fstab.h> 60103036Swollman#include <stdio.h> 61103036Swollman#include <stdlib.h> 62103036Swollman#include <string.h> 63103036Swollman#include <unistd.h> 64103036Swollman 65107387Sruchar *qfname = QUOTAFILENAME; 66107387Sruchar *qfextension[] = INITQFNAMES; 67103036Swollman 68103036Swollmanint aflag; /* all file systems */ 69103036Swollmanint gflag; /* operate on group quotas */ 701573Srgrimesint uflag; /* operate on user quotas */ 711573Srgrimesint vflag; /* verbose */ 72103036Swollman 731573Srgrimesint hasquota __P((struct fstab *, int, char **)); 741573Srgrimesint oneof __P((char *, char *[], int)); 751573Srgrimesint quotaonoff __P((struct fstab *fs, int, int, char *)); 7660075Sphantomint readonly __P((struct fstab *)); 771573Srgrimesstatic void usage __P((void)); 781573Srgrimes 791573Srgrimesint 801573Srgrimesmain(argc, argv) 811573Srgrimes int argc; 82228322Stheraven char **argv; 831573Srgrimes{ 841573Srgrimes register struct fstab *fs; 851573Srgrimes char ch, *qfnp, *whoami; 861573Srgrimes long argnum, done = 0; 871573Srgrimes int i, offmode = 0, errs = 0; 881573Srgrimes 8973088Sru 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 150static void 151usage() 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 162int 163quotaonoff(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 */ 194int 195oneof(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 */ 210int 211hasquota(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 file system is mounted and not readonly. 248 */ 249int 250readonly(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