edquota.c revision 1.17.2.2
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 1.17.2.2 2000/01/23 12:03:13 he 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; 244 245 setfsent(); 246 quptail = NULL; 247 quphead = (struct quotause *)0; 248 qcmd = QCMD(Q_GETQUOTA, quotatype); 249 while ((fs = getfsent()) != NULL) { 250 if (strcmp(fs->fs_vfstype, "ffs")) 251 continue; 252 if (!hasquota(fs, quotatype, &qfpathname)) 253 continue; 254 qupsize = sizeof(*qup) + strlen(qfpathname); 255 if ((qup = (struct quotause *)malloc(qupsize)) == NULL) 256 errx(2, "out of memory"); 257 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) { 258 if (errno == EOPNOTSUPP && !warned) { 259 warned++; 260 warnx( 261 "Quotas are not compiled into this kernel"); 262 sleep(3); 263 } 264 if ((fd = open(qfpathname, O_RDONLY)) < 0) { 265 fd = open(qfpathname, O_RDWR|O_CREAT, 0640); 266 if (fd < 0 && errno != ENOENT) { 267 warnx("open `%s'", qfpathname); 268 free(qup); 269 continue; 270 } 271 warnx("Creating quota file %s", qfpathname); 272 sleep(3); 273 (void) fchown(fd, getuid(), 274 getentry(quotagroup, GRPQUOTA)); 275 (void) fchmod(fd, 0640); 276 } 277 (void)lseek(fd, (off_t)(id * sizeof(struct dqblk)), 278 SEEK_SET); 279 switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) { 280 case 0: /* EOF */ 281 /* 282 * Convert implicit 0 quota (EOF) 283 * into an explicit one (zero'ed dqblk) 284 */ 285 memset((caddr_t)&qup->dqblk, 0, 286 sizeof(struct dqblk)); 287 break; 288 289 case sizeof(struct dqblk): /* OK */ 290 break; 291 292 default: /* ERROR */ 293 warn("read error in `%s'", qfpathname); 294 close(fd); 295 free(qup); 296 continue; 297 } 298 close(fd); 299 } 300 strcpy(qup->qfname, qfpathname); 301 strcpy(qup->fsname, fs->fs_file); 302 if (quphead == NULL) 303 quphead = qup; 304 else 305 quptail->next = qup; 306 quptail = qup; 307 qup->next = 0; 308 } 309 endfsent(); 310 return (quphead); 311 } 312 313 /* 314 * Store the requested quota information. 315 */ 316 void 317 putprivs(id, quotatype, quplist) 318 long id; 319 int quotatype; 320 struct quotause *quplist; 321 { 322 struct quotause *qup; 323 int qcmd, fd; 324 325 qcmd = QCMD(Q_SETQUOTA, quotatype); 326 for (qup = quplist; qup; qup = qup->next) { 327 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0) 328 continue; 329 if ((fd = open(qup->qfname, O_WRONLY)) < 0) { 330 warnx("open `%s'", qup->qfname); 331 } else { 332 (void)lseek(fd, 333 (off_t)(id * (long)sizeof (struct dqblk)), 334 SEEK_SET); 335 if (write(fd, &qup->dqblk, sizeof (struct dqblk)) != 336 sizeof (struct dqblk)) 337 warnx("writing `%s'", qup->qfname); 338 close(fd); 339 } 340 } 341 } 342 343 /* 344 * Take a list of priviledges and get it edited. 345 */ 346 int 347 editit(tmpfile) 348 char *tmpfile; 349 { 350 long omask; 351 int pid, stat; 352 353 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 354 top: 355 if ((pid = fork()) < 0) { 356 357 if (errno == EPROCLIM) { 358 warnx("You have too many processes"); 359 return(0); 360 } 361 if (errno == EAGAIN) { 362 sleep(1); 363 goto top; 364 } 365 warn("fork"); 366 return (0); 367 } 368 if (pid == 0) { 369 char *ed; 370 371 sigsetmask(omask); 372 setgid(getgid()); 373 setuid(getuid()); 374 if ((ed = getenv("EDITOR")) == (char *)0) 375 ed = _PATH_VI; 376 execlp(ed, ed, tmpfile, 0); 377 err(1, "%s", ed); 378 } 379 waitpid(pid, &stat, 0); 380 sigsetmask(omask); 381 if (!WIFEXITED(stat) || WEXITSTATUS(stat) != 0) 382 return (0); 383 return (1); 384 } 385 386 /* 387 * Convert a quotause list to an ASCII file. 388 */ 389 int 390 writeprivs(quplist, outfd, name, quotatype) 391 struct quotause *quplist; 392 int outfd; 393 char *name; 394 int quotatype; 395 { 396 struct quotause *qup; 397 FILE *fd; 398 399 ftruncate(outfd, 0); 400 (void)lseek(outfd, (off_t)0, SEEK_SET); 401 if ((fd = fdopen(dup(outfd), "w")) == NULL) 402 errx(1, "fdopen `%s'", tmpfil); 403 fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name); 404 for (qup = quplist; qup; qup = qup->next) { 405 fprintf(fd, "%s: %s %d, limits (soft = %d, hard = %d)\n", 406 qup->fsname, "blocks in use:", 407 (int)(dbtob((u_quad_t)qup->dqblk.dqb_curblocks) / 1024), 408 (int)(dbtob((u_quad_t)qup->dqblk.dqb_bsoftlimit) / 1024), 409 (int)(dbtob((u_quad_t)qup->dqblk.dqb_bhardlimit) / 1024)); 410 fprintf(fd, "%s %d, limits (soft = %d, hard = %d)\n", 411 "\tinodes in use:", qup->dqblk.dqb_curinodes, 412 qup->dqblk.dqb_isoftlimit, qup->dqblk.dqb_ihardlimit); 413 } 414 fclose(fd); 415 return (1); 416 } 417 418 /* 419 * Merge changes to an ASCII file into a quotause list. 420 */ 421 int 422 readprivs(quplist, infd) 423 struct quotause *quplist; 424 int infd; 425 { 426 struct quotause *qup; 427 FILE *fd; 428 int cnt; 429 char *cp; 430 struct dqblk dqblk; 431 char *fsp, line1[BUFSIZ], line2[BUFSIZ]; 432 433 (void)lseek(infd, (off_t)0, SEEK_SET); 434 fd = fdopen(dup(infd), "r"); 435 if (fd == NULL) { 436 warn("Can't re-read temp file"); 437 return (0); 438 } 439 /* 440 * Discard title line, then read pairs of lines to process. 441 */ 442 (void) fgets(line1, sizeof (line1), fd); 443 while (fgets(line1, sizeof (line1), fd) != NULL && 444 fgets(line2, sizeof (line2), fd) != NULL) { 445 if ((fsp = strtok(line1, " \t:")) == NULL) { 446 warnx("%s: bad format", line1); 447 return (0); 448 } 449 if ((cp = strtok((char *)0, "\n")) == NULL) { 450 warnx("%s: %s: bad format", fsp, 451 &fsp[strlen(fsp) + 1]); 452 return (0); 453 } 454 cnt = sscanf(cp, 455 " blocks in use: %d, limits (soft = %d, hard = %d)", 456 &dqblk.dqb_curblocks, &dqblk.dqb_bsoftlimit, 457 &dqblk.dqb_bhardlimit); 458 if (cnt != 3) { 459 warnx("%s:%s: bad format", fsp, cp); 460 return (0); 461 } 462 dqblk.dqb_curblocks = btodb((u_quad_t) 463 dqblk.dqb_curblocks * 1024); 464 dqblk.dqb_bsoftlimit = btodb((u_quad_t) 465 dqblk.dqb_bsoftlimit * 1024); 466 dqblk.dqb_bhardlimit = btodb((u_quad_t) 467 dqblk.dqb_bhardlimit * 1024); 468 if ((cp = strtok(line2, "\n")) == NULL) { 469 warnx("%s: %s: bad format", fsp, line2); 470 return (0); 471 } 472 cnt = sscanf(cp, 473 "\tinodes in use: %d, limits (soft = %d, hard = %d)", 474 &dqblk.dqb_curinodes, &dqblk.dqb_isoftlimit, 475 &dqblk.dqb_ihardlimit); 476 if (cnt != 3) { 477 warnx("%s: %s: bad format", fsp, line2); 478 return (0); 479 } 480 for (qup = quplist; qup; qup = qup->next) { 481 if (strcmp(fsp, qup->fsname)) 482 continue; 483 /* 484 * Cause time limit to be reset when the quota 485 * is next used if previously had no soft limit 486 * or were under it, but now have a soft limit 487 * and are over it. 488 */ 489 if (dqblk.dqb_bsoftlimit && 490 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit && 491 (qup->dqblk.dqb_bsoftlimit == 0 || 492 qup->dqblk.dqb_curblocks < 493 qup->dqblk.dqb_bsoftlimit)) 494 qup->dqblk.dqb_btime = 0; 495 if (dqblk.dqb_isoftlimit && 496 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit && 497 (qup->dqblk.dqb_isoftlimit == 0 || 498 qup->dqblk.dqb_curinodes < 499 qup->dqblk.dqb_isoftlimit)) 500 qup->dqblk.dqb_itime = 0; 501 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit; 502 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit; 503 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit; 504 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit; 505 qup->flags |= FOUND; 506 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks && 507 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes) 508 break; 509 warnx("%s: cannot change current allocation", fsp); 510 break; 511 } 512 } 513 fclose(fd); 514 /* 515 * Disable quotas for any filesystems that have not been found. 516 */ 517 for (qup = quplist; qup; qup = qup->next) { 518 if (qup->flags & FOUND) { 519 qup->flags &= ~FOUND; 520 continue; 521 } 522 qup->dqblk.dqb_bsoftlimit = 0; 523 qup->dqblk.dqb_bhardlimit = 0; 524 qup->dqblk.dqb_isoftlimit = 0; 525 qup->dqblk.dqb_ihardlimit = 0; 526 } 527 return (1); 528 } 529 530 /* 531 * Convert a quotause list to an ASCII file of grace times. 532 */ 533 int 534 writetimes(quplist, outfd, quotatype) 535 struct quotause *quplist; 536 int outfd; 537 int quotatype; 538 { 539 struct quotause *qup; 540 FILE *fd; 541 542 ftruncate(outfd, 0); 543 (void)lseek(outfd, (off_t)0, SEEK_SET); 544 if ((fd = fdopen(dup(outfd), "w")) == NULL) 545 err(1, "fdopen `%s'", tmpfil); 546 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n"); 547 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n", 548 qfextension[quotatype]); 549 for (qup = quplist; qup; qup = qup->next) { 550 fprintf(fd, "%s: block grace period: %s, ", 551 qup->fsname, cvtstoa(qup->dqblk.dqb_btime)); 552 fprintf(fd, "file grace period: %s\n", 553 cvtstoa(qup->dqblk.dqb_itime)); 554 } 555 fclose(fd); 556 return (1); 557 } 558 559 /* 560 * Merge changes of grace times in an ASCII file into a quotause list. 561 */ 562 int 563 readtimes(quplist, infd) 564 struct quotause *quplist; 565 int infd; 566 { 567 struct quotause *qup; 568 FILE *fd; 569 int cnt; 570 char *cp; 571 long litime, lbtime; 572 time_t itime, btime, iseconds, bseconds; 573 char *fsp, bunits[10], iunits[10], line1[BUFSIZ]; 574 575 (void)lseek(infd, (off_t)0, SEEK_SET); 576 fd = fdopen(dup(infd), "r"); 577 if (fd == NULL) { 578 warnx("Can't re-read temp file!!"); 579 return (0); 580 } 581 /* 582 * Discard two title lines, then read lines to process. 583 */ 584 (void) fgets(line1, sizeof (line1), fd); 585 (void) fgets(line1, sizeof (line1), fd); 586 while (fgets(line1, sizeof (line1), fd) != NULL) { 587 if ((fsp = strtok(line1, " \t:")) == NULL) { 588 warnx("%s: bad format", line1); 589 return (0); 590 } 591 if ((cp = strtok((char *)0, "\n")) == NULL) { 592 warnx("%s: %s: bad format", fsp, 593 &fsp[strlen(fsp) + 1]); 594 return (0); 595 } 596 cnt = sscanf(cp, 597 " block grace period: %ld %s file grace period: %ld %s", 598 &lbtime, bunits, &litime, iunits); 599 if (cnt != 4) { 600 warnx("%s:%s: bad format", fsp, cp); 601 return (0); 602 } 603 itime = (time_t)litime; 604 btime = (time_t)lbtime; 605 if (cvtatos(btime, bunits, &bseconds) == 0) 606 return (0); 607 if (cvtatos(itime, iunits, &iseconds) == 0) 608 return (0); 609 for (qup = quplist; qup; qup = qup->next) { 610 if (strcmp(fsp, qup->fsname)) 611 continue; 612 qup->dqblk.dqb_btime = bseconds; 613 qup->dqblk.dqb_itime = iseconds; 614 qup->flags |= FOUND; 615 break; 616 } 617 } 618 fclose(fd); 619 /* 620 * reset default grace periods for any filesystems 621 * that have not been found. 622 */ 623 for (qup = quplist; qup; qup = qup->next) { 624 if (qup->flags & FOUND) { 625 qup->flags &= ~FOUND; 626 continue; 627 } 628 qup->dqblk.dqb_btime = 0; 629 qup->dqblk.dqb_itime = 0; 630 } 631 return (1); 632 } 633 634 /* 635 * Convert seconds to ASCII times. 636 */ 637 char * 638 cvtstoa(time) 639 time_t time; 640 { 641 static char buf[20]; 642 643 if (time % (24 * 60 * 60) == 0) { 644 time /= 24 * 60 * 60; 645 snprintf(buf, sizeof buf, "%ld day%s", (long)time, 646 time == 1 ? "" : "s"); 647 } else if (time % (60 * 60) == 0) { 648 time /= 60 * 60; 649 sprintf(buf, "%ld hour%s", (long)time, time == 1 ? "" : "s"); 650 } else if (time % 60 == 0) { 651 time /= 60; 652 sprintf(buf, "%ld minute%s", (long)time, time == 1 ? "" : "s"); 653 } else 654 sprintf(buf, "%ld second%s", (long)time, time == 1 ? "" : "s"); 655 return (buf); 656 } 657 658 /* 659 * Convert ASCII input times to seconds. 660 */ 661 int 662 cvtatos(time, units, seconds) 663 time_t time; 664 char *units; 665 time_t *seconds; 666 { 667 668 if (memcmp(units, "second", 6) == 0) 669 *seconds = time; 670 else if (memcmp(units, "minute", 6) == 0) 671 *seconds = time * 60; 672 else if (memcmp(units, "hour", 4) == 0) 673 *seconds = time * 60 * 60; 674 else if (memcmp(units, "day", 3) == 0) 675 *seconds = time * 24 * 60 * 60; 676 else { 677 printf("%s: bad units, specify %s\n", units, 678 "days, hours, minutes, or seconds"); 679 return (0); 680 } 681 return (1); 682 } 683 684 /* 685 * Free a list of quotause structures. 686 */ 687 void 688 freeprivs(quplist) 689 struct quotause *quplist; 690 { 691 struct quotause *qup, *nextqup; 692 693 for (qup = quplist; qup; qup = nextqup) { 694 nextqup = qup->next; 695 free(qup); 696 } 697 } 698 699 /* 700 * Check whether a string is completely composed of digits. 701 */ 702 int 703 alldigits(s) 704 char *s; 705 { 706 int c; 707 708 c = *s++; 709 do { 710 if (!isdigit(c)) 711 return (0); 712 } while ((c = *s++) != 0); 713 return (1); 714 } 715 716 /* 717 * Check to see if a particular quota is to be enabled. 718 */ 719 int 720 hasquota(fs, type, qfnamep) 721 struct fstab *fs; 722 int type; 723 char **qfnamep; 724 { 725 char *opt; 726 char *cp; 727 static char initname, usrname[100], grpname[100]; 728 static char buf[BUFSIZ]; 729 730 if (!initname) { 731 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 732 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 733 initname = 1; 734 } 735 strcpy(buf, fs->fs_mntops); 736 cp = NULL; 737 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 738 if ((cp = strchr(opt, '=')) != NULL) 739 *cp++ = '\0'; 740 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 741 break; 742 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 743 break; 744 } 745 if (!opt) 746 return (0); 747 if (cp) { 748 *qfnamep = cp; 749 return (1); 750 } 751 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 752 *qfnamep = buf; 753 return (1); 754 } 755
Indexes created Sat Oct 25 16:10:12 GMT 2025