edquota.c revision 1.23
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 1.23 2002/12/05 22:54:45 jonb 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 #define MAX_TMPSTR (100+MAXPATHLEN) 88 89 int main __P((int, char **)); 90 void usage __P((void)); 91 int getentry __P((char *, int)); 92 struct quotause * 93 getprivs __P((long, int, char *)); 94 void putprivs __P((long, int, struct quotause *)); 95 int editit __P((char *)); 96 int writeprivs __P((struct quotause *, int, char *, int)); 97 int readprivs __P((struct quotause *, int)); 98 int writetimes __P((struct quotause *, int, int)); 99 int readtimes __P((struct quotause *, int)); 100 char * cvtstoa __P((time_t)); 101 int cvtatos __P((time_t, char *, time_t *)); 102 void freeprivs __P((struct quotause *)); 103 int alldigits __P((char *)); 104 int hasquota __P((struct fstab *, int, char **)); 105 106 int 107 main(argc, argv) 108 int argc; 109 char **argv; 110 { 111 struct quotause *qup, *protoprivs, *curprivs; 112 long id, protoid; 113 int quotatype, tmpfd; 114 char *protoname; 115 char *soft = NULL, *hard = NULL; 116 char *fs = NULL; 117 int ch; 118 int tflag = 0, pflag = 0; 119 120 if (argc < 2) 121 usage(); 122 if (getuid()) 123 errx(1, "permission denied"); 124 protoname = NULL; 125 quotatype = USRQUOTA; 126 while ((ch = getopt(argc, argv, "ugtp:s:h:f:")) != -1) { 127 switch(ch) { 128 case 'p': 129 protoname = optarg; 130 pflag++; 131 break; 132 case 'g': 133 quotatype = GRPQUOTA; 134 break; 135 case 'u': 136 quotatype = USRQUOTA; 137 break; 138 case 't': 139 tflag++; 140 break; 141 case 's': 142 soft = optarg; 143 break; 144 case 'h': 145 hard = optarg; 146 break; 147 case 'f': 148 fs = optarg; 149 break; 150 default: 151 usage(); 152 } 153 } 154 argc -= optind; 155 argv += optind; 156 if (pflag) { 157 if (soft || hard) 158 usage(); 159 if ((protoid = getentry(protoname, quotatype)) == -1) 160 exit(1); 161 protoprivs = getprivs(protoid, quotatype, fs); 162 for (qup = protoprivs; qup; qup = qup->next) { 163 qup->dqblk.dqb_btime = 0; 164 qup->dqblk.dqb_itime = 0; 165 } 166 while (argc-- > 0) { 167 if ((id = getentry(*argv++, quotatype)) < 0) 168 continue; 169 putprivs(id, quotatype, protoprivs); 170 } 171 exit(0); 172 } 173 if (soft || hard) { 174 struct quotause *qup; 175 u_int32_t softb, hardb, softi, hardi; 176 if (tflag) 177 usage(); 178 if (soft) { 179 if (sscanf(soft, "%d/%d", &softb, &softi) != 2) 180 usage(); 181 softb = btodb((u_quad_t)softb * 1024); 182 } 183 if (hard) { 184 if (sscanf(hard, "%d/%d", &hardb, &hardi) != 2) 185 usage(); 186 hardb = btodb((u_quad_t)hardb * 1024); 187 } 188 for ( ; argc > 0; argc--, argv++) { 189 if ((id = getentry(*argv, quotatype)) == -1) 190 continue; 191 curprivs = getprivs(id, quotatype, fs); 192 for (qup = curprivs; qup; qup = qup->next) { 193 if (soft) { 194 if (softb && 195 qup->dqblk.dqb_curblocks >= softb && 196 (qup->dqblk.dqb_bsoftlimit == 0 || 197 qup->dqblk.dqb_curblocks < 198 qup->dqblk.dqb_bsoftlimit)) 199 qup->dqblk.dqb_btime = 0; 200 if (softi && 201 qup->dqblk.dqb_curinodes >= softi && 202 (qup->dqblk.dqb_isoftlimit == 0 || 203 qup->dqblk.dqb_curinodes < 204 qup->dqblk.dqb_isoftlimit)) 205 qup->dqblk.dqb_itime = 0; 206 qup->dqblk.dqb_bsoftlimit = softb; 207 qup->dqblk.dqb_isoftlimit = softi; 208 } 209 if (hard) { 210 qup->dqblk.dqb_bhardlimit = hardb; 211 qup->dqblk.dqb_ihardlimit = hardi; 212 } 213 } 214 putprivs(id, quotatype, curprivs); 215 freeprivs(curprivs); 216 } 217 exit(0); 218 } 219 tmpfd = mkstemp(tmpfil); 220 fchown(tmpfd, getuid(), getgid()); 221 if (tflag) { 222 if (soft || hard) 223 usage(); 224 protoprivs = getprivs(0, quotatype, fs); 225 if (writetimes(protoprivs, tmpfd, quotatype) == 0) 226 exit(1); 227 if (editit(tmpfil) && readtimes(protoprivs, tmpfd)) 228 putprivs(0, quotatype, protoprivs); 229 freeprivs(protoprivs); 230 exit(0); 231 } 232 for ( ; argc > 0; argc--, argv++) { 233 if ((id = getentry(*argv, quotatype)) == -1) 234 continue; 235 curprivs = getprivs(id, quotatype, fs); 236 if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0) 237 continue; 238 if (editit(tmpfil) && readprivs(curprivs, tmpfd)) 239 putprivs(id, quotatype, curprivs); 240 freeprivs(curprivs); 241 } 242 close(tmpfd); 243 unlink(tmpfil); 244 exit(0); 245 } 246 247 void 248 usage() 249 { 250 fprintf(stderr, 251 "Usage: edquota [-u] [-p username] [-f filesystem] username ...\n" 252 "\tedquota -g [-p groupname] [-f filesystem] groupname ...\n" 253 "\tedquota [-u] [-f filesystem] [-s b#/i#] [-h b#/i#] username ...\n" 254 "\tedquota -g [-f filesystem] [-s b#/i#] [-h b#/i#] groupname ...\n" 255 "\tedquota [-u] [-f filesystem] -t\n" 256 "\tedquota -g [-f filesystem] -t\n" 257 ); 258 exit(1); 259 } 260 261 /* 262 * This routine converts a name for a particular quota type to 263 * an identifier. This routine must agree with the kernel routine 264 * getinoquota as to the interpretation of quota types. 265 */ 266 int 267 getentry(name, quotatype) 268 char *name; 269 int quotatype; 270 { 271 struct passwd *pw; 272 struct group *gr; 273 274 if (alldigits(name)) 275 return (atoi(name)); 276 switch(quotatype) { 277 case USRQUOTA: 278 if ((pw = getpwnam(name)) != NULL) 279 return (pw->pw_uid); 280 warnx("%s: no such user", name); 281 break; 282 case GRPQUOTA: 283 if ((gr = getgrnam(name)) != NULL) 284 return (gr->gr_gid); 285 warnx("%s: no such group", name); 286 break; 287 default: 288 warnx("%d: unknown quota type", quotatype); 289 break; 290 } 291 sleep(1); 292 return (-1); 293 } 294 295 /* 296 * Collect the requested quota information. 297 */ 298 struct quotause * 299 getprivs(id, quotatype, filesys) 300 long id; 301 int quotatype; 302 char *filesys; 303 { 304 struct fstab *fs; 305 struct quotause *qup, *quptail; 306 struct quotause *quphead; 307 int qcmd, qupsize, fd; 308 char *qfpathname; 309 static int warned = 0; 310 311 setfsent(); 312 quptail = NULL; 313 quphead = (struct quotause *)0; 314 qcmd = QCMD(Q_GETQUOTA, quotatype); 315 while ((fs = getfsent()) != NULL) { 316 if (strcmp(fs->fs_vfstype, "ffs")) 317 continue; 318 if (filesys && strcmp(fs->fs_spec, filesys) != 0 && 319 strcmp(fs->fs_file, filesys) != 0) 320 continue; 321 if (!hasquota(fs, quotatype, &qfpathname)) 322 continue; 323 qupsize = sizeof(*qup) + strlen(qfpathname); 324 if ((qup = (struct quotause *)malloc(qupsize)) == NULL) 325 errx(2, "out of memory"); 326 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) { 327 if (errno == EOPNOTSUPP && !warned) { 328 warned++; 329 warnx( 330 "Quotas are not compiled into this kernel"); 331 sleep(3); 332 } 333 if ((fd = open(qfpathname, O_RDONLY)) < 0) { 334 fd = open(qfpathname, O_RDWR|O_CREAT, 0640); 335 if (fd < 0 && errno != ENOENT) { 336 warnx("open `%s'", qfpathname); 337 free(qup); 338 continue; 339 } 340 warnx("Creating quota file %s", qfpathname); 341 sleep(3); 342 (void) fchown(fd, getuid(), 343 getentry(quotagroup, GRPQUOTA)); 344 (void) fchmod(fd, 0640); 345 } 346 (void)lseek(fd, (off_t)(id * sizeof(struct dqblk)), 347 SEEK_SET); 348 switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) { 349 case 0: /* EOF */ 350 /* 351 * Convert implicit 0 quota (EOF) 352 * into an explicit one (zero'ed dqblk) 353 */ 354 memset((caddr_t)&qup->dqblk, 0, 355 sizeof(struct dqblk)); 356 break; 357 358 case sizeof(struct dqblk): /* OK */ 359 break; 360 361 default: /* ERROR */ 362 warn("read error in `%s'", qfpathname); 363 close(fd); 364 free(qup); 365 continue; 366 } 367 close(fd); 368 } 369 strcpy(qup->qfname, qfpathname); 370 strcpy(qup->fsname, fs->fs_file); 371 if (quphead == NULL) 372 quphead = qup; 373 else 374 quptail->next = qup; 375 quptail = qup; 376 qup->next = 0; 377 } 378 endfsent(); 379 return (quphead); 380 } 381 382 /* 383 * Store the requested quota information. 384 */ 385 void 386 putprivs(id, quotatype, quplist) 387 long id; 388 int quotatype; 389 struct quotause *quplist; 390 { 391 struct quotause *qup; 392 int qcmd, fd; 393 394 qcmd = QCMD(Q_SETQUOTA, quotatype); 395 for (qup = quplist; qup; qup = qup->next) { 396 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0) 397 continue; 398 if ((fd = open(qup->qfname, O_WRONLY)) < 0) { 399 warnx("open `%s'", qup->qfname); 400 } else { 401 (void)lseek(fd, 402 (off_t)(id * (long)sizeof (struct dqblk)), 403 SEEK_SET); 404 if (write(fd, &qup->dqblk, sizeof (struct dqblk)) != 405 sizeof (struct dqblk)) 406 warnx("writing `%s'", qup->qfname); 407 close(fd); 408 } 409 } 410 } 411 412 /* 413 * Take a list of privileges and get it edited. 414 */ 415 int 416 editit(tmpfile) 417 char *tmpfile; 418 { 419 long omask; 420 int pid, stat; 421 char p[MAX_TMPSTR]; 422 423 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 424 top: 425 if ((pid = fork()) < 0) { 426 427 if (errno == EPROCLIM) { 428 warnx("You have too many processes"); 429 return(0); 430 } 431 if (errno == EAGAIN) { 432 sleep(1); 433 goto top; 434 } 435 warn("fork"); 436 return (0); 437 } 438 if (pid == 0) { 439 char *ed; 440 441 sigsetmask(omask); 442 setgid(getgid()); 443 setuid(getuid()); 444 if ((ed = getenv("EDITOR")) == (char *)0) 445 ed = _PATH_VI; 446 if (strlen(ed) + strlen(tmpfile) + 2 >= MAX_TMPSTR) { 447 err (1, "%s", "editor or filename too long"); 448 } 449 snprintf (p, MAX_TMPSTR, "%s %s", ed, tmpfile); 450 execlp(_PATH_BSHELL, _PATH_BSHELL, "-c", p, NULL); 451 err(1, "%s", ed); 452 } 453 waitpid(pid, &stat, 0); 454 sigsetmask(omask); 455 if (!WIFEXITED(stat) || WEXITSTATUS(stat) != 0) 456 return (0); 457 return (1); 458 } 459 460 /* 461 * Convert a quotause list to an ASCII file. 462 */ 463 int 464 writeprivs(quplist, outfd, name, quotatype) 465 struct quotause *quplist; 466 int outfd; 467 char *name; 468 int quotatype; 469 { 470 struct quotause *qup; 471 FILE *fd; 472 473 ftruncate(outfd, 0); 474 (void)lseek(outfd, (off_t)0, SEEK_SET); 475 if ((fd = fdopen(dup(outfd), "w")) == NULL) 476 errx(1, "fdopen `%s'", tmpfil); 477 fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name); 478 for (qup = quplist; qup; qup = qup->next) { 479 fprintf(fd, "%s: %s %d, limits (soft = %d, hard = %d)\n", 480 qup->fsname, "blocks in use:", 481 (int)(dbtob((u_quad_t)qup->dqblk.dqb_curblocks) / 1024), 482 (int)(dbtob((u_quad_t)qup->dqblk.dqb_bsoftlimit) / 1024), 483 (int)(dbtob((u_quad_t)qup->dqblk.dqb_bhardlimit) / 1024)); 484 fprintf(fd, "%s %d, limits (soft = %d, hard = %d)\n", 485 "\tinodes in use:", qup->dqblk.dqb_curinodes, 486 qup->dqblk.dqb_isoftlimit, qup->dqblk.dqb_ihardlimit); 487 } 488 fclose(fd); 489 return (1); 490 } 491 492 /* 493 * Merge changes to an ASCII file into a quotause list. 494 */ 495 int 496 readprivs(quplist, infd) 497 struct quotause *quplist; 498 int infd; 499 { 500 struct quotause *qup; 501 FILE *fd; 502 int cnt; 503 char *cp; 504 struct dqblk dqblk; 505 char *fsp, line1[BUFSIZ], line2[BUFSIZ]; 506 507 (void)lseek(infd, (off_t)0, SEEK_SET); 508 fd = fdopen(dup(infd), "r"); 509 if (fd == NULL) { 510 warn("Can't re-read temp file"); 511 return (0); 512 } 513 /* 514 * Discard title line, then read pairs of lines to process. 515 */ 516 (void) fgets(line1, sizeof (line1), fd); 517 while (fgets(line1, sizeof (line1), fd) != NULL && 518 fgets(line2, sizeof (line2), fd) != NULL) { 519 if ((fsp = strtok(line1, " \t:")) == NULL) { 520 warnx("%s: bad format", line1); 521 return (0); 522 } 523 if ((cp = strtok((char *)0, "\n")) == NULL) { 524 warnx("%s: %s: bad format", fsp, 525 &fsp[strlen(fsp) + 1]); 526 return (0); 527 } 528 cnt = sscanf(cp, 529 " blocks in use: %d, limits (soft = %d, hard = %d)", 530 &dqblk.dqb_curblocks, &dqblk.dqb_bsoftlimit, 531 &dqblk.dqb_bhardlimit); 532 if (cnt != 3) { 533 warnx("%s:%s: bad format", fsp, cp); 534 return (0); 535 } 536 dqblk.dqb_curblocks = btodb((u_quad_t) 537 dqblk.dqb_curblocks * 1024); 538 dqblk.dqb_bsoftlimit = btodb((u_quad_t) 539 dqblk.dqb_bsoftlimit * 1024); 540 dqblk.dqb_bhardlimit = btodb((u_quad_t) 541 dqblk.dqb_bhardlimit * 1024); 542 if ((cp = strtok(line2, "\n")) == NULL) { 543 warnx("%s: %s: bad format", fsp, line2); 544 return (0); 545 } 546 cnt = sscanf(cp, 547 "\tinodes in use: %d, limits (soft = %d, hard = %d)", 548 &dqblk.dqb_curinodes, &dqblk.dqb_isoftlimit, 549 &dqblk.dqb_ihardlimit); 550 if (cnt != 3) { 551 warnx("%s: %s: bad format", fsp, line2); 552 return (0); 553 } 554 for (qup = quplist; qup; qup = qup->next) { 555 if (strcmp(fsp, qup->fsname)) 556 continue; 557 /* 558 * Cause time limit to be reset when the quota 559 * is next used if previously had no soft limit 560 * or were under it, but now have a soft limit 561 * and are over it. 562 */ 563 if (dqblk.dqb_bsoftlimit && 564 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit && 565 (qup->dqblk.dqb_bsoftlimit == 0 || 566 qup->dqblk.dqb_curblocks < 567 qup->dqblk.dqb_bsoftlimit)) 568 qup->dqblk.dqb_btime = 0; 569 if (dqblk.dqb_isoftlimit && 570 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit && 571 (qup->dqblk.dqb_isoftlimit == 0 || 572 qup->dqblk.dqb_curinodes < 573 qup->dqblk.dqb_isoftlimit)) 574 qup->dqblk.dqb_itime = 0; 575 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit; 576 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit; 577 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit; 578 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit; 579 qup->flags |= FOUND; 580 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks && 581 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes) 582 break; 583 warnx("%s: cannot change current allocation", fsp); 584 break; 585 } 586 } 587 fclose(fd); 588 /* 589 * Disable quotas for any filesystems that have not been found. 590 */ 591 for (qup = quplist; qup; qup = qup->next) { 592 if (qup->flags & FOUND) { 593 qup->flags &= ~FOUND; 594 continue; 595 } 596 qup->dqblk.dqb_bsoftlimit = 0; 597 qup->dqblk.dqb_bhardlimit = 0; 598 qup->dqblk.dqb_isoftlimit = 0; 599 qup->dqblk.dqb_ihardlimit = 0; 600 } 601 return (1); 602 } 603 604 /* 605 * Convert a quotause list to an ASCII file of grace times. 606 */ 607 int 608 writetimes(quplist, outfd, quotatype) 609 struct quotause *quplist; 610 int outfd; 611 int quotatype; 612 { 613 struct quotause *qup; 614 FILE *fd; 615 616 ftruncate(outfd, 0); 617 (void)lseek(outfd, (off_t)0, SEEK_SET); 618 if ((fd = fdopen(dup(outfd), "w")) == NULL) 619 err(1, "fdopen `%s'", tmpfil); 620 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n"); 621 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n", 622 qfextension[quotatype]); 623 for (qup = quplist; qup; qup = qup->next) { 624 fprintf(fd, "%s: block grace period: %s, ", 625 qup->fsname, cvtstoa(qup->dqblk.dqb_btime)); 626 fprintf(fd, "file grace period: %s\n", 627 cvtstoa(qup->dqblk.dqb_itime)); 628 } 629 fclose(fd); 630 return (1); 631 } 632 633 /* 634 * Merge changes of grace times in an ASCII file into a quotause list. 635 */ 636 int 637 readtimes(quplist, infd) 638 struct quotause *quplist; 639 int infd; 640 { 641 struct quotause *qup; 642 FILE *fd; 643 int cnt; 644 char *cp; 645 long litime, lbtime; 646 time_t itime, btime, iseconds, bseconds; 647 char *fsp, bunits[10], iunits[10], line1[BUFSIZ]; 648 649 (void)lseek(infd, (off_t)0, SEEK_SET); 650 fd = fdopen(dup(infd), "r"); 651 if (fd == NULL) { 652 warnx("Can't re-read temp file!!"); 653 return (0); 654 } 655 /* 656 * Discard two title lines, then read lines to process. 657 */ 658 (void) fgets(line1, sizeof (line1), fd); 659 (void) fgets(line1, sizeof (line1), fd); 660 while (fgets(line1, sizeof (line1), fd) != NULL) { 661 if ((fsp = strtok(line1, " \t:")) == NULL) { 662 warnx("%s: bad format", line1); 663 return (0); 664 } 665 if ((cp = strtok((char *)0, "\n")) == NULL) { 666 warnx("%s: %s: bad format", fsp, 667 &fsp[strlen(fsp) + 1]); 668 return (0); 669 } 670 cnt = sscanf(cp, 671 " block grace period: %ld %s file grace period: %ld %s", 672 &lbtime, bunits, &litime, iunits); 673 if (cnt != 4) { 674 warnx("%s:%s: bad format", fsp, cp); 675 return (0); 676 } 677 itime = (time_t)litime; 678 btime = (time_t)lbtime; 679 if (cvtatos(btime, bunits, &bseconds) == 0) 680 return (0); 681 if (cvtatos(itime, iunits, &iseconds) == 0) 682 return (0); 683 for (qup = quplist; qup; qup = qup->next) { 684 if (strcmp(fsp, qup->fsname)) 685 continue; 686 qup->dqblk.dqb_btime = bseconds; 687 qup->dqblk.dqb_itime = iseconds; 688 qup->flags |= FOUND; 689 break; 690 } 691 } 692 fclose(fd); 693 /* 694 * reset default grace periods for any filesystems 695 * that have not been found. 696 */ 697 for (qup = quplist; qup; qup = qup->next) { 698 if (qup->flags & FOUND) { 699 qup->flags &= ~FOUND; 700 continue; 701 } 702 qup->dqblk.dqb_btime = 0; 703 qup->dqblk.dqb_itime = 0; 704 } 705 return (1); 706 } 707 708 /* 709 * Convert seconds to ASCII times. 710 */ 711 char * 712 cvtstoa(time) 713 time_t time; 714 { 715 static char buf[20]; 716 717 if (time % (24 * 60 * 60) == 0) { 718 time /= 24 * 60 * 60; 719 snprintf(buf, sizeof buf, "%ld day%s", (long)time, 720 time == 1 ? "" : "s"); 721 } else if (time % (60 * 60) == 0) { 722 time /= 60 * 60; 723 sprintf(buf, "%ld hour%s", (long)time, time == 1 ? "" : "s"); 724 } else if (time % 60 == 0) { 725 time /= 60; 726 sprintf(buf, "%ld minute%s", (long)time, time == 1 ? "" : "s"); 727 } else 728 sprintf(buf, "%ld second%s", (long)time, time == 1 ? "" : "s"); 729 return (buf); 730 } 731 732 /* 733 * Convert ASCII input times to seconds. 734 */ 735 int 736 cvtatos(time, units, seconds) 737 time_t time; 738 char *units; 739 time_t *seconds; 740 { 741 742 if (memcmp(units, "second", 6) == 0) 743 *seconds = time; 744 else if (memcmp(units, "minute", 6) == 0) 745 *seconds = time * 60; 746 else if (memcmp(units, "hour", 4) == 0) 747 *seconds = time * 60 * 60; 748 else if (memcmp(units, "day", 3) == 0) 749 *seconds = time * 24 * 60 * 60; 750 else { 751 printf("%s: bad units, specify %s\n", units, 752 "days, hours, minutes, or seconds"); 753 return (0); 754 } 755 return (1); 756 } 757 758 /* 759 * Free a list of quotause structures. 760 */ 761 void 762 freeprivs(quplist) 763 struct quotause *quplist; 764 { 765 struct quotause *qup, *nextqup; 766 767 for (qup = quplist; qup; qup = nextqup) { 768 nextqup = qup->next; 769 free(qup); 770 } 771 } 772 773 /* 774 * Check whether a string is completely composed of digits. 775 */ 776 int 777 alldigits(s) 778 char *s; 779 { 780 int c; 781 782 c = *s++; 783 do { 784 if (!isdigit(c)) 785 return (0); 786 } while ((c = *s++) != 0); 787 return (1); 788 } 789 790 /* 791 * Check to see if a particular quota is to be enabled. 792 */ 793 int 794 hasquota(fs, type, qfnamep) 795 struct fstab *fs; 796 int type; 797 char **qfnamep; 798 { 799 char *opt; 800 char *cp; 801 static char initname, usrname[100], grpname[100]; 802 static char buf[BUFSIZ]; 803 804 if (!initname) { 805 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 806 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 807 initname = 1; 808 } 809 strcpy(buf, fs->fs_mntops); 810 cp = NULL; 811 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 812 if ((cp = strchr(opt, '=')) != NULL) 813 *cp++ = '\0'; 814 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 815 break; 816 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 817 break; 818 } 819 if (!opt) 820 return (0); 821 if (cp) { 822 *qfnamep = cp; 823 return (1); 824 } 825 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 826 *qfnamep = buf; 827 return (1); 828 } 829
Indexes created Tue Sep 30 20:09:53 GMT 2025