edquota.c revision 1.13
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 #ifndef lint 38 static char copyright[] = 39 "@(#) 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 /* static char sccsid[] = "from: @(#)edquota.c 8.3 (Berkeley) 4/27/95"; */ 45 static char *rcsid = "$NetBSD: edquota.c,v 1.13 1997/03/08 21:39:06 mikel Exp $"; 46 #endif /* not lint */ 47 48 /* 49 * Disk quota editor. 50 */ 51 #include <sys/param.h> 52 #include <sys/stat.h> 53 #include <sys/file.h> 54 #include <sys/wait.h> 55 #include <sys/queue.h> 56 #include <ufs/ufs/quota.h> 57 #include <errno.h> 58 #include <fstab.h> 59 #include <pwd.h> 60 #include <grp.h> 61 #include <ctype.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <unistd.h> 66 #include "pathnames.h" 67 68 char *qfname = QUOTAFILENAME; 69 char *qfextension[] = INITQFNAMES; 70 char *quotagroup = QUOTAGROUP; 71 char tmpfil[] = _PATH_TMP; 72 73 struct quotause { 74 struct quotause *next; 75 long flags; 76 struct dqblk dqblk; 77 char fsname[MAXPATHLEN + 1]; 78 char qfname[1]; /* actually longer */ 79 } *getprivs(); 80 #define FOUND 0x01 81 82 void usage __P((void)); 83 int getentry __P((char *, int)); 84 struct quotause * 85 getprivs __P((long, int)); 86 void putprivs __P((long, int, struct quotause *)); 87 int editit __P((char *)); 88 int writeprivs __P((struct quotause *, int, char *, int)); 89 int readprivs __P((struct quotause *, int)); 90 int writetimes __P((struct quotause *, int, int)); 91 int readtimes __P((struct quotause *, int)); 92 char * cvtstoa __P((time_t)); 93 int cvtatos __P((time_t, char *, time_t *)); 94 void freeprivs __P((struct quotause *)); 95 int alldigits __P((char *)); 96 int hasquota __P((struct fstab *, int, char **)); 97 98 int 99 main(argc, argv) 100 register char **argv; 101 int argc; 102 { 103 register struct quotause *qup, *protoprivs, *curprivs; 104 extern char *optarg; 105 extern int optind; 106 register long id, protoid; 107 register int quotatype, tmpfd; 108 char *protoname; 109 int ch; 110 int tflag = 0, pflag = 0; 111 112 if (argc < 2) 113 usage(); 114 if (getuid()) { 115 fprintf(stderr, "edquota: permission denied\n"); 116 exit(1); 117 } 118 quotatype = USRQUOTA; 119 while ((ch = getopt(argc, argv, "ugtp:")) != -1) { 120 switch(ch) { 121 case 'p': 122 protoname = optarg; 123 pflag++; 124 break; 125 case 'g': 126 quotatype = GRPQUOTA; 127 break; 128 case 'u': 129 quotatype = USRQUOTA; 130 break; 131 case 't': 132 tflag++; 133 break; 134 default: 135 usage(); 136 } 137 } 138 argc -= optind; 139 argv += optind; 140 if (pflag) { 141 if ((protoid = getentry(protoname, quotatype)) == -1) 142 exit(1); 143 protoprivs = getprivs(protoid, quotatype); 144 for (qup = protoprivs; qup; qup = qup->next) { 145 qup->dqblk.dqb_btime = 0; 146 qup->dqblk.dqb_itime = 0; 147 } 148 while (argc-- > 0) { 149 if ((id = getentry(*argv++, quotatype)) < 0) 150 continue; 151 putprivs(id, quotatype, protoprivs); 152 } 153 exit(0); 154 } 155 tmpfd = mkstemp(tmpfil); 156 fchown(tmpfd, getuid(), getgid()); 157 if (tflag) { 158 protoprivs = getprivs(0, quotatype); 159 if (writetimes(protoprivs, tmpfd, quotatype) == 0) 160 exit(1); 161 if (editit(tmpfil) && readtimes(protoprivs, tmpfd)) 162 putprivs(0, quotatype, protoprivs); 163 freeprivs(protoprivs); 164 exit(0); 165 } 166 for ( ; argc > 0; argc--, argv++) { 167 if ((id = getentry(*argv, quotatype)) == -1) 168 continue; 169 curprivs = getprivs(id, quotatype); 170 if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0) 171 continue; 172 if (editit(tmpfil) && readprivs(curprivs, tmpfd)) 173 putprivs(id, quotatype, curprivs); 174 freeprivs(curprivs); 175 } 176 close(tmpfd); 177 unlink(tmpfil); 178 exit(0); 179 } 180 181 void 182 usage() 183 { 184 fprintf(stderr, "%s%s%s%s", 185 "Usage: edquota [-u] [-p username] username ...\n", 186 "\tedquota -g [-p groupname] groupname ...\n", 187 "\tedquota [-u] -t\n", "\tedquota -g -t\n"); 188 exit(1); 189 } 190 191 /* 192 * This routine converts a name for a particular quota type to 193 * an identifier. This routine must agree with the kernel routine 194 * getinoquota as to the interpretation of quota types. 195 */ 196 int 197 getentry(name, quotatype) 198 char *name; 199 int quotatype; 200 { 201 struct passwd *pw; 202 struct group *gr; 203 204 if (alldigits(name)) 205 return (atoi(name)); 206 switch(quotatype) { 207 case USRQUOTA: 208 if (pw = getpwnam(name)) 209 return (pw->pw_uid); 210 fprintf(stderr, "%s: no such user\n", name); 211 break; 212 case GRPQUOTA: 213 if (gr = getgrnam(name)) 214 return (gr->gr_gid); 215 fprintf(stderr, "%s: no such group\n", name); 216 break; 217 default: 218 fprintf(stderr, "%d: unknown quota type\n", quotatype); 219 break; 220 } 221 sleep(1); 222 return (-1); 223 } 224 225 /* 226 * Collect the requested quota information. 227 */ 228 struct quotause * 229 getprivs(id, quotatype) 230 register long id; 231 int quotatype; 232 { 233 register struct fstab *fs; 234 register struct quotause *qup, *quptail; 235 struct quotause *quphead; 236 int qcmd, qupsize, fd; 237 char *qfpathname; 238 static int warned = 0; 239 extern int errno; 240 241 setfsent(); 242 quphead = (struct quotause *)0; 243 qcmd = QCMD(Q_GETQUOTA, quotatype); 244 while (fs = getfsent()) { 245 if (strcmp(fs->fs_vfstype, "ffs")) 246 continue; 247 if (!hasquota(fs, quotatype, &qfpathname)) 248 continue; 249 qupsize = sizeof(*qup) + strlen(qfpathname); 250 if ((qup = (struct quotause *)malloc(qupsize)) == NULL) { 251 fprintf(stderr, "edquota: out of memory\n"); 252 exit(2); 253 } 254 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) { 255 if (errno == EOPNOTSUPP && !warned) { 256 warned++; 257 fprintf(stderr, "Warning: %s\n", 258 "Quotas are not compiled into this kernel"); 259 sleep(3); 260 } 261 if ((fd = open(qfpathname, O_RDONLY)) < 0) { 262 fd = open(qfpathname, O_RDWR|O_CREAT, 0640); 263 if (fd < 0 && errno != ENOENT) { 264 perror(qfpathname); 265 free(qup); 266 continue; 267 } 268 fprintf(stderr, "Creating quota file %s\n", 269 qfpathname); 270 sleep(3); 271 (void) fchown(fd, getuid(), 272 getentry(quotagroup, GRPQUOTA)); 273 (void) fchmod(fd, 0640); 274 } 275 lseek(fd, (off_t)(id * sizeof(struct dqblk)), L_SET); 276 switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) { 277 case 0: /* EOF */ 278 /* 279 * Convert implicit 0 quota (EOF) 280 * into an explicit one (zero'ed dqblk) 281 */ 282 bzero((caddr_t)&qup->dqblk, 283 sizeof(struct dqblk)); 284 break; 285 286 case sizeof(struct dqblk): /* OK */ 287 break; 288 289 default: /* ERROR */ 290 fprintf(stderr, "edquota: read error in "); 291 perror(qfpathname); 292 close(fd); 293 free(qup); 294 continue; 295 } 296 close(fd); 297 } 298 strcpy(qup->qfname, qfpathname); 299 strcpy(qup->fsname, fs->fs_file); 300 if (quphead == NULL) 301 quphead = qup; 302 else 303 quptail->next = qup; 304 quptail = qup; 305 qup->next = 0; 306 } 307 endfsent(); 308 return (quphead); 309 } 310 311 /* 312 * Store the requested quota information. 313 */ 314 void 315 putprivs(id, quotatype, quplist) 316 long id; 317 int quotatype; 318 struct quotause *quplist; 319 { 320 register struct quotause *qup; 321 int qcmd, fd; 322 323 qcmd = QCMD(Q_SETQUOTA, quotatype); 324 for (qup = quplist; qup; qup = qup->next) { 325 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0) 326 continue; 327 if ((fd = open(qup->qfname, O_WRONLY)) < 0) { 328 perror(qup->qfname); 329 } else { 330 lseek(fd, 331 (off_t)(id * (long)sizeof (struct dqblk)), L_SET); 332 if (write(fd, &qup->dqblk, sizeof (struct dqblk)) != 333 sizeof (struct dqblk)) { 334 fprintf(stderr, "edquota: "); 335 perror(qup->qfname); 336 } 337 close(fd); 338 } 339 } 340 } 341 342 /* 343 * Take a list of priviledges and get it edited. 344 */ 345 int 346 editit(tmpfile) 347 char *tmpfile; 348 { 349 long omask; 350 int pid, stat; 351 extern char *getenv(); 352 353 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 354 top: 355 if ((pid = fork()) < 0) { 356 extern errno; 357 358 if (errno == EPROCLIM) { 359 fprintf(stderr, "You have too many processes\n"); 360 return(0); 361 } 362 if (errno == EAGAIN) { 363 sleep(1); 364 goto top; 365 } 366 perror("fork"); 367 return (0); 368 } 369 if (pid == 0) { 370 register 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 perror(ed); 379 exit(1); 380 } 381 waitpid(pid, &stat, 0); 382 sigsetmask(omask); 383 if (!WIFEXITED(stat) || WEXITSTATUS(stat) != 0) 384 return (0); 385 return (1); 386 } 387 388 /* 389 * Convert a quotause list to an ASCII file. 390 */ 391 int 392 writeprivs(quplist, outfd, name, quotatype) 393 struct quotause *quplist; 394 int outfd; 395 char *name; 396 int quotatype; 397 { 398 register struct quotause *qup; 399 FILE *fd; 400 401 ftruncate(outfd, 0); 402 lseek(outfd, 0, L_SET); 403 if ((fd = fdopen(dup(outfd), "w")) == NULL) { 404 fprintf(stderr, "edquota: "); 405 perror(tmpfil); 406 exit(1); 407 } 408 fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name); 409 for (qup = quplist; qup; qup = qup->next) { 410 fprintf(fd, "%s: %s %d, limits (soft = %d, hard = %d)\n", 411 qup->fsname, "blocks in use:", 412 dbtob(qup->dqblk.dqb_curblocks) / 1024, 413 dbtob(qup->dqblk.dqb_bsoftlimit) / 1024, 414 dbtob(qup->dqblk.dqb_bhardlimit) / 1024); 415 fprintf(fd, "%s %d, limits (soft = %d, hard = %d)\n", 416 "\tinodes in use:", qup->dqblk.dqb_curinodes, 417 qup->dqblk.dqb_isoftlimit, qup->dqblk.dqb_ihardlimit); 418 } 419 fclose(fd); 420 return (1); 421 } 422 423 /* 424 * Merge changes to an ASCII file into a quotause list. 425 */ 426 int 427 readprivs(quplist, infd) 428 struct quotause *quplist; 429 int infd; 430 { 431 register struct quotause *qup; 432 FILE *fd; 433 int cnt; 434 register char *cp; 435 struct dqblk dqblk; 436 char *fsp, line1[BUFSIZ], line2[BUFSIZ]; 437 438 lseek(infd, 0, L_SET); 439 fd = fdopen(dup(infd), "r"); 440 if (fd == NULL) { 441 fprintf(stderr, "Can't re-read temp file!!\n"); 442 return (0); 443 } 444 /* 445 * Discard title line, then read pairs of lines to process. 446 */ 447 (void) fgets(line1, sizeof (line1), fd); 448 while (fgets(line1, sizeof (line1), fd) != NULL && 449 fgets(line2, sizeof (line2), fd) != NULL) { 450 if ((fsp = strtok(line1, " \t:")) == NULL) { 451 fprintf(stderr, "%s: bad format\n", line1); 452 return (0); 453 } 454 if ((cp = strtok((char *)0, "\n")) == NULL) { 455 fprintf(stderr, "%s: %s: bad format\n", fsp, 456 &fsp[strlen(fsp) + 1]); 457 return (0); 458 } 459 cnt = sscanf(cp, 460 " blocks in use: %d, limits (soft = %d, hard = %d)", 461 &dqblk.dqb_curblocks, &dqblk.dqb_bsoftlimit, 462 &dqblk.dqb_bhardlimit); 463 if (cnt != 3) { 464 fprintf(stderr, "%s:%s: bad format\n", fsp, cp); 465 return (0); 466 } 467 dqblk.dqb_curblocks = btodb(dqblk.dqb_curblocks * 1024); 468 dqblk.dqb_bsoftlimit = btodb(dqblk.dqb_bsoftlimit * 1024); 469 dqblk.dqb_bhardlimit = btodb(dqblk.dqb_bhardlimit * 1024); 470 if ((cp = strtok(line2, "\n")) == NULL) { 471 fprintf(stderr, "%s: %s: bad format\n", fsp, line2); 472 return (0); 473 } 474 cnt = sscanf(cp, 475 "\tinodes in use: %d, limits (soft = %d, hard = %d)", 476 &dqblk.dqb_curinodes, &dqblk.dqb_isoftlimit, 477 &dqblk.dqb_ihardlimit); 478 if (cnt != 3) { 479 fprintf(stderr, "%s: %s: bad format\n", fsp, line2); 480 return (0); 481 } 482 for (qup = quplist; qup; qup = qup->next) { 483 if (strcmp(fsp, qup->fsname)) 484 continue; 485 /* 486 * Cause time limit to be reset when the quota 487 * is next used if previously had no soft limit 488 * or were under it, but now have a soft limit 489 * and are over it. 490 */ 491 if (dqblk.dqb_bsoftlimit && 492 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit && 493 (qup->dqblk.dqb_bsoftlimit == 0 || 494 qup->dqblk.dqb_curblocks < 495 qup->dqblk.dqb_bsoftlimit)) 496 qup->dqblk.dqb_btime = 0; 497 if (dqblk.dqb_isoftlimit && 498 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit && 499 (qup->dqblk.dqb_isoftlimit == 0 || 500 qup->dqblk.dqb_curinodes < 501 qup->dqblk.dqb_isoftlimit)) 502 qup->dqblk.dqb_itime = 0; 503 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit; 504 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit; 505 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit; 506 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit; 507 qup->flags |= FOUND; 508 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks && 509 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes) 510 break; 511 fprintf(stderr, 512 "%s: cannot change current allocation\n", fsp); 513 break; 514 } 515 } 516 fclose(fd); 517 /* 518 * Disable quotas for any filesystems that have not been found. 519 */ 520 for (qup = quplist; qup; qup = qup->next) { 521 if (qup->flags & FOUND) { 522 qup->flags &= ~FOUND; 523 continue; 524 } 525 qup->dqblk.dqb_bsoftlimit = 0; 526 qup->dqblk.dqb_bhardlimit = 0; 527 qup->dqblk.dqb_isoftlimit = 0; 528 qup->dqblk.dqb_ihardlimit = 0; 529 } 530 return (1); 531 } 532 533 /* 534 * Convert a quotause list to an ASCII file of grace times. 535 */ 536 int 537 writetimes(quplist, outfd, quotatype) 538 struct quotause *quplist; 539 int outfd; 540 int quotatype; 541 { 542 register struct quotause *qup; 543 char *cvtstoa(); 544 FILE *fd; 545 546 ftruncate(outfd, 0); 547 lseek(outfd, 0, L_SET); 548 if ((fd = fdopen(dup(outfd), "w")) == NULL) { 549 fprintf(stderr, "edquota: "); 550 perror(tmpfil); 551 exit(1); 552 } 553 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n"); 554 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n", 555 qfextension[quotatype]); 556 for (qup = quplist; qup; qup = qup->next) { 557 fprintf(fd, "%s: block grace period: %s, ", 558 qup->fsname, cvtstoa(qup->dqblk.dqb_btime)); 559 fprintf(fd, "file grace period: %s\n", 560 cvtstoa(qup->dqblk.dqb_itime)); 561 } 562 fclose(fd); 563 return (1); 564 } 565 566 /* 567 * Merge changes of grace times in an ASCII file into a quotause list. 568 */ 569 int 570 readtimes(quplist, infd) 571 struct quotause *quplist; 572 int infd; 573 { 574 register struct quotause *qup; 575 FILE *fd; 576 int cnt; 577 register char *cp; 578 time_t itime, btime, iseconds, bseconds; 579 char *fsp, bunits[10], iunits[10], line1[BUFSIZ]; 580 581 lseek(infd, 0, L_SET); 582 fd = fdopen(dup(infd), "r"); 583 if (fd == NULL) { 584 fprintf(stderr, "Can't re-read temp file!!\n"); 585 return (0); 586 } 587 /* 588 * Discard two title lines, then read lines to process. 589 */ 590 (void) fgets(line1, sizeof (line1), fd); 591 (void) fgets(line1, sizeof (line1), fd); 592 while (fgets(line1, sizeof (line1), fd) != NULL) { 593 if ((fsp = strtok(line1, " \t:")) == NULL) { 594 fprintf(stderr, "%s: bad format\n", line1); 595 return (0); 596 } 597 if ((cp = strtok((char *)0, "\n")) == NULL) { 598 fprintf(stderr, "%s: %s: bad format\n", fsp, 599 &fsp[strlen(fsp) + 1]); 600 return (0); 601 } 602 cnt = sscanf(cp, 603 " block grace period: %d %s file grace period: %d %s", 604 &btime, bunits, &itime, iunits); 605 if (cnt != 4) { 606 fprintf(stderr, "%s:%s: bad format\n", fsp, cp); 607 return (0); 608 } 609 if (cvtatos(btime, bunits, &bseconds) == 0) 610 return (0); 611 if (cvtatos(itime, iunits, &iseconds) == 0) 612 return (0); 613 for (qup = quplist; qup; qup = qup->next) { 614 if (strcmp(fsp, qup->fsname)) 615 continue; 616 qup->dqblk.dqb_btime = bseconds; 617 qup->dqblk.dqb_itime = iseconds; 618 qup->flags |= FOUND; 619 break; 620 } 621 } 622 fclose(fd); 623 /* 624 * reset default grace periods for any filesystems 625 * that have not been found. 626 */ 627 for (qup = quplist; qup; qup = qup->next) { 628 if (qup->flags & FOUND) { 629 qup->flags &= ~FOUND; 630 continue; 631 } 632 qup->dqblk.dqb_btime = 0; 633 qup->dqblk.dqb_itime = 0; 634 } 635 return (1); 636 } 637 638 /* 639 * Convert seconds to ASCII times. 640 */ 641 char * 642 cvtstoa(time) 643 time_t time; 644 { 645 static char buf[20]; 646 647 if (time % (24 * 60 * 60) == 0) { 648 time /= 24 * 60 * 60; 649 sprintf(buf, "%d day%s", time, time == 1 ? "" : "s"); 650 } else if (time % (60 * 60) == 0) { 651 time /= 60 * 60; 652 sprintf(buf, "%d hour%s", time, time == 1 ? "" : "s"); 653 } else if (time % 60 == 0) { 654 time /= 60; 655 sprintf(buf, "%d minute%s", time, time == 1 ? "" : "s"); 656 } else 657 sprintf(buf, "%d second%s", time, time == 1 ? "" : "s"); 658 return (buf); 659 } 660 661 /* 662 * Convert ASCII input times to seconds. 663 */ 664 int 665 cvtatos(time, units, seconds) 666 time_t time; 667 char *units; 668 time_t *seconds; 669 { 670 671 if (bcmp(units, "second", 6) == 0) 672 *seconds = time; 673 else if (bcmp(units, "minute", 6) == 0) 674 *seconds = time * 60; 675 else if (bcmp(units, "hour", 4) == 0) 676 *seconds = time * 60 * 60; 677 else if (bcmp(units, "day", 3) == 0) 678 *seconds = time * 24 * 60 * 60; 679 else { 680 printf("%s: bad units, specify %s\n", units, 681 "days, hours, minutes, or seconds"); 682 return (0); 683 } 684 return (1); 685 } 686 687 /* 688 * Free a list of quotause structures. 689 */ 690 void 691 freeprivs(quplist) 692 struct quotause *quplist; 693 { 694 register struct quotause *qup, *nextqup; 695 696 for (qup = quplist; qup; qup = nextqup) { 697 nextqup = qup->next; 698 free(qup); 699 } 700 } 701 702 /* 703 * Check whether a string is completely composed of digits. 704 */ 705 int 706 alldigits(s) 707 register char *s; 708 { 709 register c; 710 711 c = *s++; 712 do { 713 if (!isdigit(c)) 714 return (0); 715 } while (c = *s++); 716 return (1); 717 } 718 719 /* 720 * Check to see if a particular quota is to be enabled. 721 */ 722 int 723 hasquota(fs, type, qfnamep) 724 register struct fstab *fs; 725 int type; 726 char **qfnamep; 727 { 728 register char *opt; 729 char *cp, *index(), *strtok(); 730 static char initname, usrname[100], grpname[100]; 731 static char buf[BUFSIZ]; 732 733 if (!initname) { 734 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 735 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 736 initname = 1; 737 } 738 strcpy(buf, fs->fs_mntops); 739 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 740 if (cp = index(opt, '=')) 741 *cp++ = '\0'; 742 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 743 break; 744 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 745 break; 746 } 747 if (!opt) 748 return (0); 749 if (cp) { 750 *qfnamep = cp; 751 return (1); 752 } 753 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 754 *qfnamep = buf; 755 return (1); 756 } 757
Indexes created Tue Sep 30 17:09:57 GMT 2025