edquota.c revision 1.18
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 #include <sys/cdefs.h> 38 #ifndef lint 39 __COPYRIGHT("@(#) 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 #if 0 45 static char sccsid[] = "from: @(#)edquota.c 8.3 (Berkeley) 4/27/95"; 46 #else 47 __RCSID("$NetBSD: edquota.c,v 1.18 1999/08/16 03:12:31 simonb Exp $"); 48 #endif 49 #endif /* not lint */ 50 51 /* 52 * Disk quota editor. 53 */ 54 #include <sys/param.h> 55 #include <sys/stat.h> 56 #include <sys/file.h> 57 #include <sys/wait.h> 58 #include <sys/queue.h> 59 #include <ufs/ufs/quota.h> 60 #include <err.h> 61 #include <errno.h> 62 #include <fstab.h> 63 #include <pwd.h> 64 #include <grp.h> 65 #include <ctype.h> 66 #include <signal.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <unistd.h> 71 #include "pathnames.h" 72 73 char *qfname = QUOTAFILENAME; 74 char *qfextension[] = INITQFNAMES; 75 char *quotagroup = QUOTAGROUP; 76 char tmpfil[] = _PATH_TMP; 77 78 struct quotause { 79 struct quotause *next; 80 long flags; 81 struct dqblk dqblk; 82 char fsname[MAXPATHLEN + 1]; 83 char qfname[1]; /* actually longer */ 84 }; 85 #define FOUND 0x01 86 87 int main __P((int, char **)); 88 void usage __P((void)); 89 int getentry __P((char *, int)); 90 struct quotause * 91 getprivs __P((long, int)); 92 void putprivs __P((long, int, struct quotause *)); 93 int editit __P((char *)); 94 int writeprivs __P((struct quotause *, int, char *, int)); 95 int readprivs __P((struct quotause *, int)); 96 int writetimes __P((struct quotause *, int, int)); 97 int readtimes __P((struct quotause *, int)); 98 char * cvtstoa __P((time_t)); 99 int cvtatos __P((time_t, char *, time_t *)); 100 void freeprivs __P((struct quotause *)); 101 int alldigits __P((char *)); 102 int hasquota __P((struct fstab *, int, char **)); 103 104 int 105 main(argc, argv) 106 int argc; 107 char **argv; 108 { 109 struct quotause *qup, *protoprivs, *curprivs; 110 extern char *optarg; 111 extern int optind; 112 long id, protoid; 113 int quotatype, tmpfd; 114 char *protoname; 115 int ch; 116 int tflag = 0, pflag = 0; 117 118 if (argc < 2) 119 usage(); 120 if (getuid()) 121 errx(1, "permission denied"); 122 protoname = NULL; 123 quotatype = USRQUOTA; 124 while ((ch = getopt(argc, argv, "ugtp:")) != -1) { 125 switch(ch) { 126 case 'p': 127 protoname = optarg; 128 pflag++; 129 break; 130 case 'g': 131 quotatype = GRPQUOTA; 132 break; 133 case 'u': 134 quotatype = USRQUOTA; 135 break; 136 case 't': 137 tflag++; 138 break; 139 default: 140 usage(); 141 } 142 } 143 argc -= optind; 144 argv += optind; 145 if (pflag) { 146 if ((protoid = getentry(protoname, quotatype)) == -1) 147 exit(1); 148 protoprivs = getprivs(protoid, quotatype); 149 for (qup = protoprivs; qup; qup = qup->next) { 150 qup->dqblk.dqb_btime = 0; 151 qup->dqblk.dqb_itime = 0; 152 } 153 while (argc-- > 0) { 154 if ((id = getentry(*argv++, quotatype)) < 0) 155 continue; 156 putprivs(id, quotatype, protoprivs); 157 } 158 exit(0); 159 } 160 tmpfd = mkstemp(tmpfil); 161 fchown(tmpfd, getuid(), getgid()); 162 if (tflag) { 163 protoprivs = getprivs(0, quotatype); 164 if (writetimes(protoprivs, tmpfd, quotatype) == 0) 165 exit(1); 166 if (editit(tmpfil) && readtimes(protoprivs, tmpfd)) 167 putprivs(0, quotatype, protoprivs); 168 freeprivs(protoprivs); 169 exit(0); 170 } 171 for ( ; argc > 0; argc--, argv++) { 172 if ((id = getentry(*argv, quotatype)) == -1) 173 continue; 174 curprivs = getprivs(id, quotatype); 175 if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0) 176 continue; 177 if (editit(tmpfil) && readprivs(curprivs, tmpfd)) 178 putprivs(id, quotatype, curprivs); 179 freeprivs(curprivs); 180 } 181 close(tmpfd); 182 unlink(tmpfil); 183 exit(0); 184 } 185 186 void 187 usage() 188 { 189 fprintf(stderr, "%s%s%s%s", 190 "Usage: edquota [-u] [-p username] username ...\n", 191 "\tedquota -g [-p groupname] groupname ...\n", 192 "\tedquota [-u] -t\n", "\tedquota -g -t\n"); 193 exit(1); 194 } 195 196 /* 197 * This routine converts a name for a particular quota type to 198 * an identifier. This routine must agree with the kernel routine 199 * getinoquota as to the interpretation of quota types. 200 */ 201 int 202 getentry(name, quotatype) 203 char *name; 204 int quotatype; 205 { 206 struct passwd *pw; 207 struct group *gr; 208 209 if (alldigits(name)) 210 return (atoi(name)); 211 switch(quotatype) { 212 case USRQUOTA: 213 if ((pw = getpwnam(name)) != NULL) 214 return (pw->pw_uid); 215 warnx("%s: no such user", name); 216 break; 217 case GRPQUOTA: 218 if ((gr = getgrnam(name)) != NULL) 219 return (gr->gr_gid); 220 warnx("%s: no such group", name); 221 break; 222 default: 223 warnx("%d: unknown quota type", quotatype); 224 break; 225 } 226 sleep(1); 227 return (-1); 228 } 229 230 /* 231 * Collect the requested quota information. 232 */ 233 struct quotause * 234 getprivs(id, quotatype) 235 long id; 236 int quotatype; 237 { 238 struct fstab *fs; 239 struct quotause *qup, *quptail; 240 struct quotause *quphead; 241 int qcmd, qupsize, fd; 242 char *qfpathname; 243 static int warned = 0; 244 extern int errno; 245 246 setfsent(); 247 quptail = NULL; 248 quphead = (struct quotause *)0; 249 qcmd = QCMD(Q_GETQUOTA, quotatype); 250 while ((fs = getfsent()) != NULL) { 251 if (strcmp(fs->fs_vfstype, "ffs")) 252 continue; 253 if (!hasquota(fs, quotatype, &qfpathname)) 254 continue; 255 qupsize = sizeof(*qup) + strlen(qfpathname); 256 if ((qup = (struct quotause *)malloc(qupsize)) == NULL) 257 errx(2, "out of memory"); 258 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) { 259 if (errno == EOPNOTSUPP && !warned) { 260 warned++; 261 warnx( 262 "Quotas are not compiled into this kernel"); 263 sleep(3); 264 } 265 if ((fd = open(qfpathname, O_RDONLY)) < 0) { 266 fd = open(qfpathname, O_RDWR|O_CREAT, 0640); 267 if (fd < 0 && errno != ENOENT) { 268 warnx("open `%s'", qfpathname); 269 free(qup); 270 continue; 271 } 272 warnx("Creating quota file %s", qfpathname); 273 sleep(3); 274 (void) fchown(fd, getuid(), 275 getentry(quotagroup, GRPQUOTA)); 276 (void) fchmod(fd, 0640); 277 } 278 (void)lseek(fd, (off_t)(id * sizeof(struct dqblk)), 279 SEEK_SET); 280 switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) { 281 case 0: /* EOF */ 282 /* 283 * Convert implicit 0 quota (EOF) 284 * into an explicit one (zero'ed dqblk) 285 */ 286 memset((caddr_t)&qup->dqblk, 0, 287 sizeof(struct dqblk)); 288 break; 289 290 case sizeof(struct dqblk): /* OK */ 291 break; 292 293 default: /* ERROR */ 294 warn("read error in `%s'", qfpathname); 295 close(fd); 296 free(qup); 297 continue; 298 } 299 close(fd); 300 } 301 strcpy(qup->qfname, qfpathname); 302 strcpy(qup->fsname, fs->fs_file); 303 if (quphead == NULL) 304 quphead = qup; 305 else 306 quptail->next = qup; 307 quptail = qup; 308 qup->next = 0; 309 } 310 endfsent(); 311 return (quphead); 312 } 313 314 /* 315 * Store the requested quota information. 316 */ 317 void 318 putprivs(id, quotatype, quplist) 319 long id; 320 int quotatype; 321 struct quotause *quplist; 322 { 323 struct quotause *qup; 324 int qcmd, fd; 325 326 qcmd = QCMD(Q_SETQUOTA, quotatype); 327 for (qup = quplist; qup; qup = qup->next) { 328 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0) 329 continue; 330 if ((fd = open(qup->qfname, O_WRONLY)) < 0) { 331 warnx("open `%s'", qup->qfname); 332 } else { 333 (void)lseek(fd, 334 (off_t)(id * (long)sizeof (struct dqblk)), 335 SEEK_SET); 336 if (write(fd, &qup->dqblk, sizeof (struct dqblk)) != 337 sizeof (struct dqblk)) 338 warnx("writing `%s'", qup->qfname); 339 close(fd); 340 } 341 } 342 } 343 344 /* 345 * Take a list of privileges and get it edited. 346 */ 347 int 348 editit(tmpfile) 349 char *tmpfile; 350 { 351 long omask; 352 int pid, stat; 353 354 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 355 top: 356 if ((pid = fork()) < 0) { 357 358 if (errno == EPROCLIM) { 359 warnx("You have too many processes"); 360 return(0); 361 } 362 if (errno == EAGAIN) { 363 sleep(1); 364 goto top; 365 } 366 warn("fork"); 367 return (0); 368 } 369 if (pid == 0) { 370 char *ed; 371 372 sigsetmask(omask); 373 setgid(getgid()); 374 setuid(getuid()); 375 if ((ed = getenv("EDITOR")) == (char *)0) 376 ed = _PATH_VI; 377 execlp(ed, ed, tmpfile, 0); 378 err(1, "%s", ed); 379 } 380 waitpid(pid, &stat, 0); 381 sigsetmask(omask); 382 if (!WIFEXITED(stat) || WEXITSTATUS(stat) != 0) 383 return (0); 384 return (1); 385 } 386 387 /* 388 * Convert a quotause list to an ASCII file. 389 */ 390 int 391 writeprivs(quplist, outfd, name, quotatype) 392 struct quotause *quplist; 393 int outfd; 394 char *name; 395 int quotatype; 396 { 397 struct quotause *qup; 398 FILE *fd; 399 400 ftruncate(outfd, 0); 401 (void)lseek(outfd, (off_t)0, SEEK_SET); 402 if ((fd = fdopen(dup(outfd), "w")) == NULL) 403 errx(1, "fdopen `%s'", tmpfil); 404 fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name); 405 for (qup = quplist; qup; qup = qup->next) { 406 fprintf(fd, "%s: %s %d, limits (soft = %d, hard = %d)\n", 407 qup->fsname, "blocks in use:", 408 dbtob(qup->dqblk.dqb_curblocks) / 1024, 409 dbtob(qup->dqblk.dqb_bsoftlimit) / 1024, 410 dbtob(qup->dqblk.dqb_bhardlimit) / 1024); 411 fprintf(fd, "%s %d, limits (soft = %d, hard = %d)\n", 412 "\tinodes in use:", qup->dqblk.dqb_curinodes, 413 qup->dqblk.dqb_isoftlimit, qup->dqblk.dqb_ihardlimit); 414 } 415 fclose(fd); 416 return (1); 417 } 418 419 /* 420 * Merge changes to an ASCII file into a quotause list. 421 */ 422 int 423 readprivs(quplist, infd) 424 struct quotause *quplist; 425 int infd; 426 { 427 struct quotause *qup; 428 FILE *fd; 429 int cnt; 430 char *cp; 431 struct dqblk dqblk; 432 char *fsp, line1[BUFSIZ], line2[BUFSIZ]; 433 434 (void)lseek(infd, (off_t)0, SEEK_SET); 435 fd = fdopen(dup(infd), "r"); 436 if (fd == NULL) { 437 warn("Can't re-read temp file"); 438 return (0); 439 } 440 /* 441 * Discard title line, then read pairs of lines to process. 442 */ 443 (void) fgets(line1, sizeof (line1), fd); 444 while (fgets(line1, sizeof (line1), fd) != NULL && 445 fgets(line2, sizeof (line2), fd) != NULL) { 446 if ((fsp = strtok(line1, " \t:")) == NULL) { 447 warnx("%s: bad format", line1); 448 return (0); 449 } 450 if ((cp = strtok((char *)0, "\n")) == NULL) { 451 warnx("%s: %s: bad format", fsp, 452 &fsp[strlen(fsp) + 1]); 453 return (0); 454 } 455 cnt = sscanf(cp, 456 " blocks in use: %d, limits (soft = %d, hard = %d)", 457 &dqblk.dqb_curblocks, &dqblk.dqb_bsoftlimit, 458 &dqblk.dqb_bhardlimit); 459 if (cnt != 3) { 460 warnx("%s:%s: bad format", fsp, cp); 461 return (0); 462 } 463 dqblk.dqb_curblocks = btodb(dqblk.dqb_curblocks * 1024); 464 dqblk.dqb_bsoftlimit = btodb(dqblk.dqb_bsoftlimit * 1024); 465 dqblk.dqb_bhardlimit = btodb(dqblk.dqb_bhardlimit * 1024); 466 if ((cp = strtok(line2, "\n")) == NULL) { 467 warnx("%s: %s: bad format", fsp, line2); 468 return (0); 469 } 470 cnt = sscanf(cp, 471 "\tinodes in use: %d, limits (soft = %d, hard = %d)", 472 &dqblk.dqb_curinodes, &dqblk.dqb_isoftlimit, 473 &dqblk.dqb_ihardlimit); 474 if (cnt != 3) { 475 warnx("%s: %s: bad format", fsp, line2); 476 return (0); 477 } 478 for (qup = quplist; qup; qup = qup->next) { 479 if (strcmp(fsp, qup->fsname)) 480 continue; 481 /* 482 * Cause time limit to be reset when the quota 483 * is next used if previously had no soft limit 484 * or were under it, but now have a soft limit 485 * and are over it. 486 */ 487 if (dqblk.dqb_bsoftlimit && 488 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit && 489 (qup->dqblk.dqb_bsoftlimit == 0 || 490 qup->dqblk.dqb_curblocks < 491 qup->dqblk.dqb_bsoftlimit)) 492 qup->dqblk.dqb_btime = 0; 493 if (dqblk.dqb_isoftlimit && 494 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit && 495 (qup->dqblk.dqb_isoftlimit == 0 || 496 qup->dqblk.dqb_curinodes < 497 qup->dqblk.dqb_isoftlimit)) 498 qup->dqblk.dqb_itime = 0; 499 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit; 500 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit; 501 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit; 502 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit; 503 qup->flags |= FOUND; 504 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks && 505 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes) 506 break; 507 warnx("%s: cannot change current allocation", fsp); 508 break; 509 } 510 } 511 fclose(fd); 512 /* 513 * Disable quotas for any filesystems that have not been found. 514 */ 515 for (qup = quplist; qup; qup = qup->next) { 516 if (qup->flags & FOUND) { 517 qup->flags &= ~FOUND; 518 continue; 519 } 520 qup->dqblk.dqb_bsoftlimit = 0; 521 qup->dqblk.dqb_bhardlimit = 0; 522 qup->dqblk.dqb_isoftlimit = 0; 523 qup->dqblk.dqb_ihardlimit = 0; 524 } 525 return (1); 526 } 527 528 /* 529 * Convert a quotause list to an ASCII file of grace times. 530 */ 531 int 532 writetimes(quplist, outfd, quotatype) 533 struct quotause *quplist; 534 int outfd; 535 int quotatype; 536 { 537 struct quotause *qup; 538 FILE *fd; 539 540 ftruncate(outfd, 0); 541 (void)lseek(outfd, (off_t)0, SEEK_SET); 542 if ((fd = fdopen(dup(outfd), "w")) == NULL) 543 err(1, "fdopen `%s'", tmpfil); 544 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n"); 545 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n", 546 qfextension[quotatype]); 547 for (qup = quplist; qup; qup = qup->next) { 548 fprintf(fd, "%s: block grace period: %s, ", 549 qup->fsname, cvtstoa(qup->dqblk.dqb_btime)); 550 fprintf(fd, "file grace period: %s\n", 551 cvtstoa(qup->dqblk.dqb_itime)); 552 } 553 fclose(fd); 554 return (1); 555 } 556 557 /* 558 * Merge changes of grace times in an ASCII file into a quotause list. 559 */ 560 int 561 readtimes(quplist, infd) 562 struct quotause *quplist; 563 int infd; 564 { 565 struct quotause *qup; 566 FILE *fd; 567 int cnt; 568 char *cp; 569 long litime, lbtime; 570 time_t itime, btime, iseconds, bseconds; 571 char *fsp, bunits[10], iunits[10], line1[BUFSIZ]; 572 573 (void)lseek(infd, (off_t)0, SEEK_SET); 574 fd = fdopen(dup(infd), "r"); 575 if (fd == NULL) { 576 warnx("Can't re-read temp file!!"); 577 return (0); 578 } 579 /* 580 * Discard two title lines, then read lines to process. 581 */ 582 (void) fgets(line1, sizeof (line1), fd); 583 (void) fgets(line1, sizeof (line1), fd); 584 while (fgets(line1, sizeof (line1), fd) != NULL) { 585 if ((fsp = strtok(line1, " \t:")) == NULL) { 586 warnx("%s: bad format", line1); 587 return (0); 588 } 589 if ((cp = strtok((char *)0, "\n")) == NULL) { 590 warnx("%s: %s: bad format", fsp, 591 &fsp[strlen(fsp) + 1]); 592 return (0); 593 } 594 cnt = sscanf(cp, 595 " block grace period: %ld %s file grace period: %ld %s", 596 &lbtime, bunits, &litime, iunits); 597 if (cnt != 4) { 598 warnx("%s:%s: bad format", fsp, cp); 599 return (0); 600 } 601 itime = (time_t)litime; 602 btime = (time_t)lbtime; 603 if (cvtatos(btime, bunits, &bseconds) == 0) 604 return (0); 605 if (cvtatos(itime, iunits, &iseconds) == 0) 606 return (0); 607 for (qup = quplist; qup; qup = qup->next) { 608 if (strcmp(fsp, qup->fsname)) 609 continue; 610 qup->dqblk.dqb_btime = bseconds; 611 qup->dqblk.dqb_itime = iseconds; 612 qup->flags |= FOUND; 613 break; 614 } 615 } 616 fclose(fd); 617 /* 618 * reset default grace periods for any filesystems 619 * that have not been found. 620 */ 621 for (qup = quplist; qup; qup = qup->next) { 622 if (qup->flags & FOUND) { 623 qup->flags &= ~FOUND; 624 continue; 625 } 626 qup->dqblk.dqb_btime = 0; 627 qup->dqblk.dqb_itime = 0; 628 } 629 return (1); 630 } 631 632 /* 633 * Convert seconds to ASCII times. 634 */ 635 char * 636 cvtstoa(time) 637 time_t time; 638 { 639 static char buf[20]; 640 641 if (time % (24 * 60 * 60) == 0) { 642 time /= 24 * 60 * 60; 643 snprintf(buf, sizeof buf, "%ld day%s", (long)time, 644 time == 1 ? "" : "s"); 645 } else if (time % (60 * 60) == 0) { 646 time /= 60 * 60; 647 sprintf(buf, "%ld hour%s", (long)time, time == 1 ? "" : "s"); 648 } else if (time % 60 == 0) { 649 time /= 60; 650 sprintf(buf, "%ld minute%s", (long)time, time == 1 ? "" : "s"); 651 } else 652 sprintf(buf, "%ld second%s", (long)time, time == 1 ? "" : "s"); 653 return (buf); 654 } 655 656 /* 657 * Convert ASCII input times to seconds. 658 */ 659 int 660 cvtatos(time, units, seconds) 661 time_t time; 662 char *units; 663 time_t *seconds; 664 { 665 666 if (memcmp(units, "second", 6) == 0) 667 *seconds = time; 668 else if (memcmp(units, "minute", 6) == 0) 669 *seconds = time * 60; 670 else if (memcmp(units, "hour", 4) == 0) 671 *seconds = time * 60 * 60; 672 else if (memcmp(units, "day", 3) == 0) 673 *seconds = time * 24 * 60 * 60; 674 else { 675 printf("%s: bad units, specify %s\n", units, 676 "days, hours, minutes, or seconds"); 677 return (0); 678 } 679 return (1); 680 } 681 682 /* 683 * Free a list of quotause structures. 684 */ 685 void 686 freeprivs(quplist) 687 struct quotause *quplist; 688 { 689 struct quotause *qup, *nextqup; 690 691 for (qup = quplist; qup; qup = nextqup) { 692 nextqup = qup->next; 693 free(qup); 694 } 695 } 696 697 /* 698 * Check whether a string is completely composed of digits. 699 */ 700 int 701 alldigits(s) 702 char *s; 703 { 704 int c; 705 706 c = *s++; 707 do { 708 if (!isdigit(c)) 709 return (0); 710 } while ((c = *s++) != 0); 711 return (1); 712 } 713 714 /* 715 * Check to see if a particular quota is to be enabled. 716 */ 717 int 718 hasquota(fs, type, qfnamep) 719 struct fstab *fs; 720 int type; 721 char **qfnamep; 722 { 723 char *opt; 724 char *cp; 725 static char initname, usrname[100], grpname[100]; 726 static char buf[BUFSIZ]; 727 728 if (!initname) { 729 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 730 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 731 initname = 1; 732 } 733 strcpy(buf, fs->fs_mntops); 734 cp = NULL; 735 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 736 if ((cp = strchr(opt, '=')) != NULL) 737 *cp++ = '\0'; 738 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 739 break; 740 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 741 break; 742 } 743 if (!opt) 744 return (0); 745 if (cp) { 746 *qfnamep = cp; 747 return (1); 748 } 749 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 750 *qfnamep = buf; 751 return (1); 752 } 753
Indexes created Tue Sep 30 20:09:53 GMT 2025