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 * @(#) Copyright (c) 1980, 1990, 1993 The Regents of the University of California. All rights reserved. 37 * @(#)edquota.c 8.1 (Berkeley) 6/6/93 38 * $FreeBSD: src/usr.sbin/edquota/edquota.c,v 1.9.2.6 2002/10/31 22:38:43 iedowse Exp $ 39 * $DragonFly: src/usr.sbin/edquota/edquota.c,v 1.8 2006/04/03 01:58:49 dillon Exp $ 40 */ 41 42 /* 43 * Disk quota editor. 44 */ 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 #include <sys/file.h> 48 #include <sys/wait.h> 49 #include <vfs/ufs/quota.h> 50 #include <ctype.h> 51 #include <err.h> 52 #include <errno.h> 53 #include <fstab.h> 54 #include <grp.h> 55 #include <pwd.h> 56 #include <signal.h> 57 #include <stdio.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <unistd.h> 61 #include "pathnames.h" 62 63 const char *qfname = QUOTAFILENAME; 64 const char *qfextension[] = INITQFNAMES; 65 const char *quotagroup = QUOTAGROUP; 66 char tmpfil[] = _PATH_TMP; 67 68 struct quotause { 69 struct quotause *next; 70 long flags; 71 struct ufs_dqblk dqblk; 72 char fsname[MAXPATHLEN + 1]; 73 char qfname[1]; /* actually longer */ 74 }; 75 #define FOUND 0x01 76 77 int alldigits(const char *s); 78 int cvtatos(time_t, char *, time_t *); 79 char *cvtstoa(time_t); 80 int editit(char *); 81 void freeprivs(struct quotause *); 82 int getentry(const char *, int); 83 struct quotause *getprivs(long, int, char *); 84 int hasquota(struct fstab *, int, char **); 85 void putprivs(long, int, struct quotause *); 86 int readprivs(struct quotause *, char *); 87 int readtimes(struct quotause *, char *); 88 static void usage(void); 89 int writetimes(struct quotause *, int, int); 90 int writeprivs(struct quotause *, int, char *, int); 91 92 int 93 main(int argc, char **argv) 94 { 95 struct quotause *qup, *protoprivs, *curprivs; 96 long id, protoid; 97 long long lim; 98 int i, quotatype, range, tmpfd; 99 uid_t startuid, enduid; 100 u_int32_t *limp; 101 char *protoname, *cp, *oldoptarg, ch; 102 int eflag = 0, tflag = 0, pflag = 0; 103 char *fspath = NULL; 104 char buf[MAXLOGNAME]; 105 106 if (argc < 2) 107 usage(); 108 if (getuid()) 109 errx(1, "permission denied"); 110 quotatype = USRQUOTA; 111 protoprivs = NULL; 112 while ((ch = getopt(argc, argv, "ugtf:p:e:")) != -1) { 113 switch(ch) { 114 case 'f': 115 fspath = optarg; 116 break; 117 case 'p': 118 protoname = optarg; 119 pflag++; 120 break; 121 case 'g': 122 quotatype = GRPQUOTA; 123 break; 124 case 'u': 125 quotatype = USRQUOTA; 126 break; 127 case 't': 128 tflag++; 129 break; 130 case 'e': 131 if ((qup = malloc(sizeof(*qup))) == NULL) 132 errx(2, "out of memory"); 133 bzero(qup, sizeof(*qup)); 134 i = 0; 135 oldoptarg = optarg; 136 for (cp = optarg; (cp = strsep(&optarg, ":")) != NULL; 137 i++) { 138 if (cp != oldoptarg) 139 *(cp - 1) = ':'; 140 limp = NULL; 141 switch (i) { 142 case 0: 143 strlcpy(qup->fsname, cp, 144 sizeof(qup->fsname)); 145 break; 146 case 1: 147 limp = &qup->dqblk.dqb_bsoftlimit; 148 break; 149 case 2: 150 limp = &qup->dqblk.dqb_bhardlimit; 151 break; 152 case 3: 153 limp = &qup->dqblk.dqb_isoftlimit; 154 break; 155 case 4: 156 limp = &qup->dqblk.dqb_ihardlimit; 157 break; 158 default: 159 warnx("incorrect quota specification: " 160 "%s", oldoptarg); 161 usage(); 162 break; /* XXX: report an error */ 163 } 164 if (limp != NULL) { 165 lim = strtoll(cp, NULL, 10); 166 if (lim < 0 || lim > UINT_MAX) 167 errx(1, "invalid limit value: " 168 "%lld", lim); 169 *limp = (u_int32_t)lim; 170 } 171 } 172 qup->dqblk.dqb_bsoftlimit = 173 btodb((off_t)qup->dqblk.dqb_bsoftlimit * 1024); 174 qup->dqblk.dqb_bhardlimit = 175 btodb((off_t)qup->dqblk.dqb_bhardlimit * 1024); 176 if (protoprivs == NULL) { 177 protoprivs = curprivs = qup; 178 } else { 179 curprivs->next = qup; 180 curprivs = qup; 181 } 182 eflag++; 183 pflag++; 184 break; 185 default: 186 usage(); 187 } 188 } 189 argc -= optind; 190 argv += optind; 191 if (pflag) { 192 if (protoprivs == NULL) { 193 if ((protoid = getentry(protoname, quotatype)) == -1) 194 exit(1); 195 protoprivs = getprivs(protoid, quotatype, fspath); 196 for (qup = protoprivs; qup; qup = qup->next) { 197 qup->dqblk.dqb_btime = 0; 198 qup->dqblk.dqb_itime = 0; 199 } 200 } 201 for (; argc-- > 0; argv++) { 202 if (strspn(*argv, "0123456789-") == strlen(*argv) && 203 (cp = strchr(*argv, '-')) != NULL) { 204 *cp++ = '\0'; 205 startuid = atoi(*argv); 206 enduid = atoi(cp); 207 if (enduid < startuid) 208 errx(1, 209 "ending uid (%d) must be >= starting uid (%d) when using uid ranges", 210 enduid, startuid); 211 range = 1; 212 } else { 213 startuid = enduid = 0; 214 range = 0; 215 } 216 for ( ; startuid <= enduid; startuid++) { 217 if (range) 218 snprintf(buf, sizeof(buf), "%d", 219 startuid); 220 else 221 snprintf(buf, sizeof(buf), "%s", 222 *argv); 223 if ((id = getentry(buf, quotatype)) < 0) 224 continue; 225 if (eflag) { 226 for (qup = protoprivs; qup; 227 qup = qup->next) { 228 curprivs = getprivs(id, 229 quotatype, qup->fsname); 230 if (curprivs == NULL) 231 continue; 232 strcpy(qup->qfname, 233 curprivs->qfname); 234 strcpy(qup->fsname, 235 curprivs->fsname); 236 } 237 } 238 putprivs(id, quotatype, protoprivs); 239 } 240 } 241 exit(0); 242 } 243 tmpfd = mkstemp(tmpfil); 244 fchown(tmpfd, getuid(), getgid()); 245 if (tflag) { 246 protoprivs = getprivs(0, quotatype, fspath); 247 if (writetimes(protoprivs, tmpfd, quotatype) == 0) 248 exit(1); 249 if (editit(tmpfil) && readtimes(protoprivs, tmpfil)) 250 putprivs(0, quotatype, protoprivs); 251 freeprivs(protoprivs); 252 close(tmpfd); 253 unlink(tmpfil); 254 exit(0); 255 } 256 for ( ; argc > 0; argc--, argv++) { 257 if ((id = getentry(*argv, quotatype)) == -1) 258 continue; 259 curprivs = getprivs(id, quotatype, fspath); 260 if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0) 261 continue; 262 if (editit(tmpfil) && readprivs(curprivs, tmpfil)) 263 putprivs(id, quotatype, curprivs); 264 freeprivs(curprivs); 265 } 266 close(tmpfd); 267 unlink(tmpfil); 268 exit(0); 269 } 270 271 static void 272 usage(void) 273 { 274 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", 275 "usage: edquota [-u] [-f fspath] [-p username] username ...", 276 " edquota [-u] -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]", 277 " username ...", 278 " edquota -g [-f fspath] [-p groupname] groupname ...", 279 " edquota -g -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]", 280 " groupname ...", 281 " edquota [-u] -t [-f fspath]", 282 " edquota -g -t [-f fspath]"); 283 exit(1); 284 } 285 286 /* 287 * This routine converts a name for a particular quota type to 288 * an identifier. This routine must agree with the kernel routine 289 * getinoquota as to the interpretation of quota types. 290 */ 291 int 292 getentry(const char *name, int quotatype) 293 { 294 struct passwd *pw; 295 struct group *gr; 296 297 if (alldigits(name)) 298 return (atoi(name)); 299 switch(quotatype) { 300 case USRQUOTA: 301 if ((pw = getpwnam(name))) 302 return (pw->pw_uid); 303 warnx("%s: no such user", name); 304 break; 305 case GRPQUOTA: 306 if ((gr = getgrnam(name))) 307 return (gr->gr_gid); 308 warnx("%s: no such group", name); 309 break; 310 default: 311 warnx("%d: unknown quota type", quotatype); 312 break; 313 } 314 sleep(1); 315 return (-1); 316 } 317 318 /* 319 * Collect the requested quota information. 320 */ 321 struct quotause * 322 getprivs(long id, int quotatype, char *fspath) 323 { 324 struct fstab *fs; 325 struct quotause *qup, *quptail; 326 struct quotause *quphead; 327 int qcmd, qupsize, fd; 328 char *qfpathname; 329 static int warned = 0; 330 331 setfsent(); 332 quphead = NULL; 333 qcmd = QCMD(Q_GETQUOTA, quotatype); 334 while ((fs = getfsent())) { 335 if (fspath && *fspath && strcmp(fspath, fs->fs_spec) && 336 strcmp(fspath, fs->fs_file)) 337 continue; 338 if (strcmp(fs->fs_vfstype, "ufs")) 339 continue; 340 if (!hasquota(fs, quotatype, &qfpathname)) 341 continue; 342 qupsize = sizeof(*qup) + strlen(qfpathname); 343 if ((qup = (struct quotause *)malloc(qupsize)) == NULL) 344 errx(2, "out of memory"); 345 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) { 346 if (errno == EOPNOTSUPP && !warned) { 347 warned++; 348 warnx("warning: quotas are not compiled into this kernel"); 349 sleep(3); 350 } 351 if ((fd = open(qfpathname, O_RDONLY)) < 0) { 352 fd = open(qfpathname, O_RDWR|O_CREAT, 0640); 353 if (fd < 0 && errno != ENOENT) { 354 warn("%s", qfpathname); 355 free(qup); 356 continue; 357 } 358 warnx("creating quota file %s", qfpathname); 359 sleep(3); 360 fchown(fd, getuid(), 361 getentry(quotagroup, GRPQUOTA)); 362 fchmod(fd, 0640); 363 } 364 lseek(fd, (long)(id * sizeof(struct ufs_dqblk)), L_SET); 365 switch (read(fd, &qup->dqblk, sizeof(struct ufs_dqblk))) { 366 case 0: /* EOF */ 367 /* 368 * Convert implicit 0 quota (EOF) 369 * into an explicit one (zero'ed dqblk) 370 */ 371 bzero((caddr_t)&qup->dqblk, 372 sizeof(struct ufs_dqblk)); 373 break; 374 375 case sizeof(struct ufs_dqblk): /* OK */ 376 break; 377 378 default: /* ERROR */ 379 warn("read error in %s", qfpathname); 380 close(fd); 381 free(qup); 382 continue; 383 } 384 close(fd); 385 } 386 strcpy(qup->qfname, qfpathname); 387 strcpy(qup->fsname, fs->fs_file); 388 if (quphead == NULL) 389 quphead = qup; 390 else 391 quptail->next = qup; 392 quptail = qup; 393 qup->next = 0; 394 } 395 endfsent(); 396 return (quphead); 397 } 398 399 /* 400 * Store the requested quota information. 401 */ 402 void 403 putprivs(long id, int quotatype, struct quotause *quplist) 404 { 405 struct quotause *qup; 406 int qcmd, fd; 407 408 qcmd = QCMD(Q_SETQUOTA, quotatype); 409 for (qup = quplist; qup; qup = qup->next) { 410 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0) 411 continue; 412 if ((fd = open(qup->qfname, O_WRONLY)) < 0) { 413 warn("%s", qup->qfname); 414 } else { 415 lseek(fd, (long)id * (long)sizeof(struct ufs_dqblk), 0); 416 if (write(fd, &qup->dqblk, sizeof(struct ufs_dqblk)) != 417 sizeof(struct ufs_dqblk)) { 418 warn("%s", qup->qfname); 419 } 420 close(fd); 421 } 422 } 423 } 424 425 /* 426 * Take a list of priviledges and get it edited. 427 */ 428 int 429 editit(char *tmpf) 430 { 431 long omask; 432 int pid, status; 433 434 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 435 top: 436 if ((pid = fork()) < 0) { 437 438 if (errno == EPROCLIM) { 439 warnx("you have too many processes"); 440 return(0); 441 } 442 if (errno == EAGAIN) { 443 sleep(1); 444 goto top; 445 } 446 warn("fork"); 447 return (0); 448 } 449 if (pid == 0) { 450 const char *ed; 451 452 sigsetmask(omask); 453 setgid(getgid()); 454 setuid(getuid()); 455 if ((ed = getenv("EDITOR")) == NULL) 456 ed = _PATH_VI; 457 execlp(ed, ed, tmpf, NULL); 458 err(1, "%s", ed); 459 } 460 waitpid(pid, &status, 0); 461 sigsetmask(omask); 462 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) 463 return (0); 464 return (1); 465 } 466 467 /* 468 * Convert a quotause list to an ASCII file. 469 */ 470 int 471 writeprivs(struct quotause *quplist, int outfd, char *name, int quotatype) 472 { 473 struct quotause *qup; 474 FILE *fd; 475 476 ftruncate(outfd, 0); 477 lseek(outfd, 0, L_SET); 478 if ((fd = fdopen(dup(outfd), "w")) == NULL) 479 err(1, "%s", tmpfil); 480 fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name); 481 for (qup = quplist; qup; qup = qup->next) { 482 fprintf(fd, "%s: %s %lu, limits (soft = %lu, hard = %lu)\n", 483 qup->fsname, "kbytes in use:", 484 (unsigned long)(dbtob(qup->dqblk.dqb_curblocks) / 1024), 485 (unsigned long)(dbtob(qup->dqblk.dqb_bsoftlimit) / 1024), 486 (unsigned long)(dbtob(qup->dqblk.dqb_bhardlimit) / 1024)); 487 fprintf(fd, "%s %lu, limits (soft = %lu, hard = %lu)\n", 488 "\tinodes in use:", 489 (unsigned long)qup->dqblk.dqb_curinodes, 490 (unsigned long)qup->dqblk.dqb_isoftlimit, 491 (unsigned long)qup->dqblk.dqb_ihardlimit); 492 } 493 fclose(fd); 494 return (1); 495 } 496 497 /* 498 * Merge changes to an ASCII file into a quotause list. 499 */ 500 int 501 readprivs(struct quotause *quplist, char *inname) 502 { 503 struct quotause *qup; 504 FILE *fd; 505 unsigned long bhardlimit, bsoftlimit, curblocks; 506 unsigned long ihardlimit, isoftlimit, curinodes; 507 int cnt; 508 char *cp; 509 struct ufs_dqblk dqblk; 510 char *fsp, line1[BUFSIZ], line2[BUFSIZ]; 511 512 fd = fopen(inname, "r"); 513 if (fd == NULL) { 514 warnx("can't re-read temp file!!"); 515 return (0); 516 } 517 /* 518 * Discard title line, then read pairs of lines to process. 519 */ 520 fgets(line1, sizeof(line1), fd); 521 while (fgets(line1, sizeof(line1), fd) != NULL && 522 fgets(line2, sizeof(line2), fd) != NULL) { 523 if ((fsp = strtok(line1, " \t:")) == NULL) { 524 warnx("%s: bad format", line1); 525 return (0); 526 } 527 if ((cp = strtok(NULL, "\n")) == NULL) { 528 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]); 529 return (0); 530 } 531 cnt = sscanf(cp, 532 " kbytes in use: %lu, limits (soft = %lu, hard = %lu)", 533 &curblocks, &bsoftlimit, &bhardlimit); 534 if (cnt != 3) { 535 warnx("%s:%s: bad format", fsp, cp); 536 return (0); 537 } 538 dqblk.dqb_curblocks = btodb((off_t)curblocks * 1024); 539 dqblk.dqb_bsoftlimit = btodb((off_t)bsoftlimit * 1024); 540 dqblk.dqb_bhardlimit = btodb((off_t)bhardlimit * 1024); 541 if ((cp = strtok(line2, "\n")) == NULL) { 542 warnx("%s: %s: bad format", fsp, line2); 543 return (0); 544 } 545 cnt = sscanf(cp, 546 "\tinodes in use: %lu, limits (soft = %lu, hard = %lu)", 547 &curinodes, &isoftlimit, &ihardlimit); 548 if (cnt != 3) { 549 warnx("%s: %s: bad format", fsp, line2); 550 return (0); 551 } 552 dqblk.dqb_curinodes = curinodes; 553 dqblk.dqb_isoftlimit = isoftlimit; 554 dqblk.dqb_ihardlimit = ihardlimit; 555 for (qup = quplist; qup; qup = qup->next) { 556 if (strcmp(fsp, qup->fsname)) 557 continue; 558 /* 559 * Cause time limit to be reset when the quota 560 * is next used if previously had no soft limit 561 * or were under it, but now have a soft limit 562 * and are over it. 563 */ 564 if (dqblk.dqb_bsoftlimit && 565 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit && 566 (qup->dqblk.dqb_bsoftlimit == 0 || 567 qup->dqblk.dqb_curblocks < 568 qup->dqblk.dqb_bsoftlimit)) 569 qup->dqblk.dqb_btime = 0; 570 if (dqblk.dqb_isoftlimit && 571 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit && 572 (qup->dqblk.dqb_isoftlimit == 0 || 573 qup->dqblk.dqb_curinodes < 574 qup->dqblk.dqb_isoftlimit)) 575 qup->dqblk.dqb_itime = 0; 576 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit; 577 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit; 578 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit; 579 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit; 580 qup->flags |= FOUND; 581 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks && 582 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes) 583 break; 584 warnx("%s: cannot change current allocation", fsp); 585 break; 586 } 587 } 588 fclose(fd); 589 /* 590 * Disable quotas for any filesystems that have not been found. 591 */ 592 for (qup = quplist; qup; qup = qup->next) { 593 if (qup->flags & FOUND) { 594 qup->flags &= ~FOUND; 595 continue; 596 } 597 qup->dqblk.dqb_bsoftlimit = 0; 598 qup->dqblk.dqb_bhardlimit = 0; 599 qup->dqblk.dqb_isoftlimit = 0; 600 qup->dqblk.dqb_ihardlimit = 0; 601 } 602 return (1); 603 } 604 605 /* 606 * Convert a quotause list to an ASCII file of grace times. 607 */ 608 int 609 writetimes(struct quotause *quplist, int outfd, int quotatype) 610 { 611 struct quotause *qup; 612 FILE *fd; 613 614 ftruncate(outfd, 0); 615 lseek(outfd, 0, L_SET); 616 if ((fd = fdopen(dup(outfd), "w")) == NULL) 617 err(1, "%s", tmpfil); 618 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n"); 619 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n", 620 qfextension[quotatype]); 621 for (qup = quplist; qup; qup = qup->next) { 622 fprintf(fd, "%s: block grace period: %s, ", 623 qup->fsname, cvtstoa(qup->dqblk.dqb_btime)); 624 fprintf(fd, "file grace period: %s\n", 625 cvtstoa(qup->dqblk.dqb_itime)); 626 } 627 fclose(fd); 628 return (1); 629 } 630 631 /* 632 * Merge changes of grace times in an ASCII file into a quotause list. 633 */ 634 int 635 readtimes(struct quotause *quplist, char *inname) 636 { 637 struct quotause *qup; 638 FILE *fd; 639 int cnt; 640 char *cp; 641 time_t itime, btime, iseconds, bseconds; 642 long l_itime, l_btime; 643 char *fsp, bunits[10], iunits[10], line1[BUFSIZ]; 644 645 fd = fopen(inname, "r"); 646 if (fd == NULL) { 647 warnx("can't re-read temp file!!"); 648 return (0); 649 } 650 /* 651 * Discard two title lines, then read lines to process. 652 */ 653 fgets(line1, sizeof(line1), fd); 654 fgets(line1, sizeof(line1), fd); 655 while (fgets(line1, sizeof(line1), fd) != NULL) { 656 if ((fsp = strtok(line1, " \t:")) == NULL) { 657 warnx("%s: bad format", line1); 658 return (0); 659 } 660 if ((cp = strtok(NULL, "\n")) == NULL) { 661 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]); 662 return (0); 663 } 664 cnt = sscanf(cp, 665 " block grace period: %ld %s file grace period: %ld %s", 666 &l_btime, bunits, &l_itime, iunits); 667 if (cnt != 4) { 668 warnx("%s:%s: bad format", fsp, cp); 669 return (0); 670 } 671 btime = l_btime; 672 itime = l_itime; 673 if (cvtatos(btime, bunits, &bseconds) == 0) 674 return (0); 675 if (cvtatos(itime, iunits, &iseconds) == 0) 676 return (0); 677 for (qup = quplist; qup; qup = qup->next) { 678 if (strcmp(fsp, qup->fsname)) 679 continue; 680 qup->dqblk.dqb_btime = bseconds; 681 qup->dqblk.dqb_itime = iseconds; 682 qup->flags |= FOUND; 683 break; 684 } 685 } 686 fclose(fd); 687 /* 688 * reset default grace periods for any filesystems 689 * that have not been found. 690 */ 691 for (qup = quplist; qup; qup = qup->next) { 692 if (qup->flags & FOUND) { 693 qup->flags &= ~FOUND; 694 continue; 695 } 696 qup->dqblk.dqb_btime = 0; 697 qup->dqblk.dqb_itime = 0; 698 } 699 return (1); 700 } 701 702 /* 703 * Convert seconds to ASCII times. 704 */ 705 char * 706 cvtstoa(time_t secs) 707 { 708 static char buf[20]; 709 710 if (secs % (24 * 60 * 60) == 0) { 711 secs /= 24 * 60 * 60; 712 sprintf(buf, "%ld day%s", (long)secs, secs == 1 ? "" : "s"); 713 } else if (secs % (60 * 60) == 0) { 714 secs /= 60 * 60; 715 sprintf(buf, "%ld hour%s", (long)secs, secs == 1 ? "" : "s"); 716 } else if (secs % 60 == 0) { 717 secs /= 60; 718 sprintf(buf, "%ld minute%s", (long)secs, secs == 1 ? "" : "s"); 719 } else 720 sprintf(buf, "%ld second%s", (long)secs, secs == 1 ? "" : "s"); 721 return (buf); 722 } 723 724 /* 725 * Convert ASCII input times to seconds. 726 */ 727 int 728 cvtatos(time_t period, char *units, time_t *seconds) 729 { 730 731 if (bcmp(units, "second", 6) == 0) 732 *seconds = period; 733 else if (bcmp(units, "minute", 6) == 0) 734 *seconds = period * 60; 735 else if (bcmp(units, "hour", 4) == 0) 736 *seconds = period * 60 * 60; 737 else if (bcmp(units, "day", 3) == 0) 738 *seconds = period * 24 * 60 * 60; 739 else { 740 printf("%s: bad units, specify %s\n", units, 741 "days, hours, minutes, or seconds"); 742 return (0); 743 } 744 return (1); 745 } 746 747 /* 748 * Free a list of quotause structures. 749 */ 750 void 751 freeprivs(struct quotause *quplist) 752 { 753 struct quotause *qup, *nextqup; 754 755 for (qup = quplist; qup; qup = nextqup) { 756 nextqup = qup->next; 757 free(qup); 758 } 759 } 760 761 /* 762 * Check whether a string is completely composed of digits. 763 */ 764 int 765 alldigits(const char *s) 766 { 767 int c; 768 769 c = *s++; 770 do { 771 if (!isdigit(c)) 772 return (0); 773 } while ((c = *s++)); 774 return (1); 775 } 776 777 /* 778 * Check to see if a particular quota is to be enabled. 779 */ 780 int 781 hasquota(struct fstab *fs, int type, char **qfnamep) 782 { 783 char *opt; 784 char *cp; 785 static char initname, usrname[100], grpname[100]; 786 static char buf[BUFSIZ]; 787 788 if (!initname) { 789 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 790 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 791 initname = 1; 792 } 793 strcpy(buf, fs->fs_mntops); 794 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 795 if ((cp = strchr(opt, '='))) 796 *cp++ = '\0'; 797 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 798 break; 799 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 800 break; 801 } 802 if (!opt) 803 return (0); 804 if (cp) { 805 *qfnamep = cp; 806 return (1); 807 } 808 sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 809 *qfnamep = buf; 810 return (1); 811 } 812