usr.sbin/edquota/edquota.c

   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 const 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 #if 0
  45 static char sccsid[] = "@(#)edquota.c   8.1 (Berkeley) 6/6/93";
  46 #endif
  47 static const char rcsid[] =
  48   "$FreeBSD$";
  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 <ufs/ufs/quota.h>
  59 #include <ctype.h>
  60 #include <err.h>
  61 #include <errno.h>
  62 #include <fstab.h>
  63 #include <grp.h>
  64 #include <pwd.h>
  65 #include <signal.h>
  66 #include <stdio.h>
  67 #include <stdlib.h>
  68 #include <string.h>
  69 #include <unistd.h>
  70 #include "pathnames.h"
  71
  72 char *qfname = QUOTAFILENAME;
  73 char *qfextension[] = INITQFNAMES;
  74 char *quotagroup = QUOTAGROUP;
  75 char tmpfil[] = _PATH_TMP;
  76
  77 struct quotause {
  78         struct  quotause *next;
  79         long    flags;
  80         struct  dqblk dqblk;
  81         char    fsname[MAXPATHLEN + 1];
  82         char    qfname[1];      /* actually longer */
  83 };
  84 #define FOUND   0x01
  85
  86 int alldigits __P((char *s));
  87 int cvtatos __P((time_t, char *, time_t *));
  88 char *cvtstoa __P((time_t));
  89 int editit __P((char *));
  90 void freeprivs __P((struct quotause *));
  91 int getentry __P((char *, int));
  92 struct quotause *getprivs __P((long, int));
  93 int hasquota __P((struct fstab *, int, char **));
  94 void putprivs __P((long, int, struct quotause *));
  95 int readprivs __P((struct quotause *, char *));
  96 int readtimes __P((struct quotause *, char *));
  97 static void usage __P((void));
  98 int writetimes __P((struct quotause *, int, int));
  99 int writeprivs __P((struct quotause *, int, char *, int));
 100
 101 int
 102 main(argc, argv)
 103         register char **argv;
 104         int argc;
 105 {
 106         register struct quotause *qup, *protoprivs, *curprivs;
 107         register long id, protoid;
 108         register int quotatype, tmpfd;
 109         register uid_t startuid, enduid;
 110         char *protoname, *cp, ch;
 111         int tflag = 0, pflag = 0;
 112         char buf[30];
 113
 114         if (argc < 2)
 115                 usage();
 116         if (getuid())
 117                 errx(1, "permission denied");
 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 (isdigit(*argv[0]) &&
 150                             (cp = strchr(*argv, '-')) != NULL) {
 151                                 *cp++ = '\0';
 152                                 startuid = atoi(*argv);
 153                                 enduid = atoi(cp);
 154                                 if (enduid < startuid)
 155                                         errx(1,
 156         "ending uid (%d) must be >= starting uid (%d) when using uid ranges",
 157                                                 enduid, startuid);
 158                                 for ( ; startuid <= enduid; startuid++) {
 159                                         snprintf(buf, sizeof(buf), "%d",
 160                                             startuid);
 161                                         if ((id = getentry(buf, quotatype)) < 0)
 162                                                 continue;
 163                                         putprivs(id, quotatype, protoprivs);
 164                                 }
 165                                 continue;
 166                         }
 167                         if ((id = getentry(*argv++, quotatype)) < 0)
 168                                 continue;
 169                         putprivs(id, quotatype, protoprivs);
 170                 }
 171                 exit(0);
 172         }
 173         tmpfd = mkstemp(tmpfil);
 174         fchown(tmpfd, getuid(), getgid());
 175         if (tflag) {
 176                 protoprivs = getprivs(0, quotatype);
 177                 if (writetimes(protoprivs, tmpfd, quotatype) == 0)
 178                         exit(1);
 179                 if (editit(tmpfil) && readtimes(protoprivs, tmpfil))
 180                         putprivs(0, quotatype, protoprivs);
 181                 freeprivs(protoprivs);
 182                 close(tmpfd);
 183                 unlink(tmpfil);
 184                 exit(0);
 185         }
 186         for ( ; argc > 0; argc--, argv++) {
 187                 if ((id = getentry(*argv, quotatype)) == -1)
 188                         continue;
 189                 curprivs = getprivs(id, quotatype);
 190                 if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0)
 191                         continue;
 192                 if (editit(tmpfil) && readprivs(curprivs, tmpfil))
 193                         putprivs(id, quotatype, curprivs);
 194                 freeprivs(curprivs);
 195         }
 196         close(tmpfd);
 197         unlink(tmpfil);
 198         exit(0);
 199 }
 200
 201 static void
 202 usage()
 203 {
 204         fprintf(stderr, "%s\n%s\n%s\n%s\n",
 205                 "usage: edquota [-u] [-p username] username ...",
 206                 "       edquota -g [-p groupname] groupname ...",
 207                 "       edquota [-u] -t",
 208                 "       edquota -g -t");
 209         exit(1);
 210 }
 211
 212 /*
 213  * This routine converts a name for a particular quota type to
 214  * an identifier. This routine must agree with the kernel routine
 215  * getinoquota as to the interpretation of quota types.
 216  */
 217 int
 218 getentry(name, quotatype)
 219         char *name;
 220         int quotatype;
 221 {
 222         struct passwd *pw;
 223         struct group *gr;
 224
 225         if (alldigits(name))
 226                 return (atoi(name));
 227         switch(quotatype) {
 228         case USRQUOTA:
 229                 if ((pw = getpwnam(name)))
 230                         return (pw->pw_uid);
 231                 warnx("%s: no such user", name);
 232                 break;
 233         case GRPQUOTA:
 234                 if ((gr = getgrnam(name)))
 235                         return (gr->gr_gid);
 236                 warnx("%s: no such group", name);
 237                 break;
 238         default:
 239                 warnx("%d: unknown quota type", quotatype);
 240                 break;
 241         }
 242         sleep(1);
 243         return (-1);
 244 }
 245
 246 /*
 247  * Collect the requested quota information.
 248  */
 249 struct quotause *
 250 getprivs(id, quotatype)
 251         register long id;
 252         int quotatype;
 253 {
 254         register struct fstab *fs;
 255         register struct quotause *qup, *quptail;
 256         struct quotause *quphead;
 257         int qcmd, qupsize, fd;
 258         char *qfpathname;
 259         static int warned = 0;
 260
 261         setfsent();
 262         quphead = (struct quotause *)0;
 263         qcmd = QCMD(Q_GETQUOTA, quotatype);
 264         while ((fs = getfsent())) {
 265                 if (strcmp(fs->fs_vfstype, "ufs"))
 266                         continue;
 267                 if (!hasquota(fs, quotatype, &qfpathname))
 268                         continue;
 269                 qupsize = sizeof(*qup) + strlen(qfpathname);
 270                 if ((qup = (struct quotause *)malloc(qupsize)) == NULL)
 271                         errx(2, "out of memory");
 272                 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) {
 273                         if (errno == EOPNOTSUPP && !warned) {
 274                                 warned++;
 275                 warnx("warning: quotas are not compiled into this kernel");
 276                                 sleep(3);
 277                         }
 278                         if ((fd = open(qfpathname, O_RDONLY)) < 0) {
 279                                 fd = open(qfpathname, O_RDWR|O_CREAT, 0640);
 280                                 if (fd < 0 && errno != ENOENT) {
 281                                         warn("%s", qfpathname);
 282                                         free(qup);
 283                                         continue;
 284                                 }
 285                                 warnx("creating quota file %s", qfpathname);
 286                                 sleep(3);
 287                                 (void) fchown(fd, getuid(),
 288                                     getentry(quotagroup, GRPQUOTA));
 289                                 (void) fchmod(fd, 0640);
 290                         }
 291                         lseek(fd, (long)(id * sizeof(struct dqblk)), L_SET);
 292                         switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) {
 293                         case 0:                 /* EOF */
 294                                 /*
 295                                  * Convert implicit 0 quota (EOF)
 296                                  * into an explicit one (zero'ed dqblk)
 297                                  */
 298                                 bzero((caddr_t)&qup->dqblk,
 299                                     sizeof(struct dqblk));
 300                                 break;
 301
 302                         case sizeof(struct dqblk):      /* OK */
 303                                 break;
 304
 305                         default:                /* ERROR */
 306                                 warn("read error in %s", qfpathname);
 307                                 close(fd);
 308                                 free(qup);
 309                                 continue;
 310                         }
 311                         close(fd);
 312                 }
 313                 strcpy(qup->qfname, qfpathname);
 314                 strcpy(qup->fsname, fs->fs_file);
 315                 if (quphead == NULL)
 316                         quphead = qup;
 317                 else
 318                         quptail->next = qup;
 319                 quptail = qup;
 320                 qup->next = 0;
 321         }
 322         endfsent();
 323         return (quphead);
 324 }
 325
 326 /*
 327  * Store the requested quota information.
 328  */
 329 void
 330 putprivs(id, quotatype, quplist)
 331         long id;
 332         int quotatype;
 333         struct quotause *quplist;
 334 {
 335         register struct quotause *qup;
 336         int qcmd, fd;
 337
 338         qcmd = QCMD(Q_SETQUOTA, quotatype);
 339         for (qup = quplist; qup; qup = qup->next) {
 340                 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0)
 341                         continue;
 342                 if ((fd = open(qup->qfname, O_WRONLY)) < 0) {
 343                         warn("%s", qup->qfname);
 344                 } else {
 345                         lseek(fd, (long)id * (long)sizeof (struct dqblk), 0);
 346                         if (write(fd, &qup->dqblk, sizeof (struct dqblk)) !=
 347                             sizeof (struct dqblk)) {
 348                                 warn("%s", qup->qfname);
 349                         }
 350                         close(fd);
 351                 }
 352         }
 353 }
 354
 355 /*
 356  * Take a list of priviledges and get it edited.
 357  */
 358 int
 359 editit(tmpfile)
 360         char *tmpfile;
 361 {
 362         long omask;
 363         int pid, stat;
 364
 365         omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
 366  top:
 367         if ((pid = fork()) < 0) {
 368
 369                 if (errno == EPROCLIM) {
 370                         warnx("you have too many processes");
 371                         return(0);
 372                 }
 373                 if (errno == EAGAIN) {
 374                         sleep(1);
 375                         goto top;
 376                 }
 377                 warn("fork");
 378                 return (0);
 379         }
 380         if (pid == 0) {
 381                 register char *ed;
 382
 383                 sigsetmask(omask);
 384                 setgid(getgid());
 385                 setuid(getuid());
 386                 if ((ed = getenv("EDITOR")) == (char *)0)
 387                         ed = _PATH_VI;
 388                 execlp(ed, ed, tmpfile, 0);
 389                 err(1, "%s", ed);
 390         }
 391         waitpid(pid, &stat, 0);
 392         sigsetmask(omask);
 393         if (!WIFEXITED(stat) || WEXITSTATUS(stat) != 0)
 394                 return (0);
 395         return (1);
 396 }
 397
 398 /*
 399  * Convert a quotause list to an ASCII file.
 400  */
 401 int
 402 writeprivs(quplist, outfd, name, quotatype)
 403         struct quotause *quplist;
 404         int outfd;
 405         char *name;
 406         int quotatype;
 407 {
 408         register struct quotause *qup;
 409         FILE *fd;
 410
 411         ftruncate(outfd, 0);
 412         lseek(outfd, 0, L_SET);
 413         if ((fd = fdopen(dup(outfd), "w")) == NULL)
 414                 err(1, "%s", tmpfil);
 415         fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name);
 416         for (qup = quplist; qup; qup = qup->next) {
 417                 fprintf(fd, "%s: %s %lu, limits (soft = %lu, hard = %lu)\n",
 418                     qup->fsname, "blocks in use:",
 419                     (unsigned long)(dbtob(qup->dqblk.dqb_curblocks) / 1024),
 420                     (unsigned long)(dbtob(qup->dqblk.dqb_bsoftlimit) / 1024),
 421                     (unsigned long)(dbtob(qup->dqblk.dqb_bhardlimit) / 1024));
 422                 fprintf(fd, "%s %lu, limits (soft = %lu, hard = %lu)\n",
 423                     "\tinodes in use:", qup->dqblk.dqb_curinodes,
 424                     qup->dqblk.dqb_isoftlimit, qup->dqblk.dqb_ihardlimit);
 425         }
 426         fclose(fd);
 427         return (1);
 428 }
 429
 430 /*
 431  * Merge changes to an ASCII file into a quotause list.
 432  */
 433 int
 434 readprivs(quplist, inname)
 435         struct quotause *quplist;
 436         char *inname;
 437 {
 438         register struct quotause *qup;
 439         FILE *fd;
 440         int cnt;
 441         register char *cp;
 442         struct dqblk dqblk;
 443         char *fsp, line1[BUFSIZ], line2[BUFSIZ];
 444
 445         fd = fopen(inname, "r");
 446         if (fd == NULL) {
 447                 warnx("can't re-read temp file!!");
 448                 return (0);
 449         }
 450         /*
 451          * Discard title line, then read pairs of lines to process.
 452          */
 453         (void) fgets(line1, sizeof (line1), fd);
 454         while (fgets(line1, sizeof (line1), fd) != NULL &&
 455                fgets(line2, sizeof (line2), fd) != NULL) {
 456                 if ((fsp = strtok(line1, " \t:")) == NULL) {
 457                         warnx("%s: bad format", line1);
 458                         return (0);
 459                 }
 460                 if ((cp = strtok((char *)0, "\n")) == NULL) {
 461                         warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
 462                         return (0);
 463                 }
 464                 cnt = sscanf(cp,
 465                     " blocks in use: %lu, limits (soft = %lu, hard = %lu)",
 466                     &dqblk.dqb_curblocks, &dqblk.dqb_bsoftlimit,
 467                     &dqblk.dqb_bhardlimit);
 468                 if (cnt != 3) {
 469                         warnx("%s:%s: bad format", fsp, cp);
 470                         return (0);
 471                 }
 472                 dqblk.dqb_curblocks = btodb((off_t)dqblk.dqb_curblocks * 1024);
 473                 dqblk.dqb_bsoftlimit = btodb((off_t)dqblk.dqb_bsoftlimit
 474                     * 1024);
 475                 dqblk.dqb_bhardlimit = btodb((off_t)dqblk.dqb_bhardlimit
 476                     * 1024);
 477                 if ((cp = strtok(line2, "\n")) == NULL) {
 478                         warnx("%s: %s: bad format", fsp, line2);
 479                         return (0);
 480                 }
 481                 cnt = sscanf(cp,
 482                     "\tinodes in use: %lu, limits (soft = %lu, hard = %lu)",
 483                     &dqblk.dqb_curinodes, &dqblk.dqb_isoftlimit,
 484                     &dqblk.dqb_ihardlimit);
 485                 if (cnt != 3) {
 486                         warnx("%s: %s: bad format", fsp, line2);
 487                         return (0);
 488                 }
 489                 for (qup = quplist; qup; qup = qup->next) {
 490                         if (strcmp(fsp, qup->fsname))
 491                                 continue;
 492                         /*
 493                          * Cause time limit to be reset when the quota
 494                          * is next used if previously had no soft limit
 495                          * or were under it, but now have a soft limit
 496                          * and are over it.
 497                          */
 498                         if (dqblk.dqb_bsoftlimit &&
 499                             qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit &&
 500                             (qup->dqblk.dqb_bsoftlimit == 0 ||
 501                              qup->dqblk.dqb_curblocks <
 502                              qup->dqblk.dqb_bsoftlimit))
 503                                 qup->dqblk.dqb_btime = 0;
 504                         if (dqblk.dqb_isoftlimit &&
 505                             qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit &&
 506                             (qup->dqblk.dqb_isoftlimit == 0 ||
 507                              qup->dqblk.dqb_curinodes <
 508                              qup->dqblk.dqb_isoftlimit))
 509                                 qup->dqblk.dqb_itime = 0;
 510                         qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit;
 511                         qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit;
 512                         qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit;
 513                         qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit;
 514                         qup->flags |= FOUND;
 515                         if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks &&
 516                             dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes)
 517                                 break;
 518                         warnx("%s: cannot change current allocation", fsp);
 519                         break;
 520                 }
 521         }
 522         fclose(fd);
 523         /*
 524          * Disable quotas for any filesystems that have not been found.
 525          */
 526         for (qup = quplist; qup; qup = qup->next) {
 527                 if (qup->flags & FOUND) {
 528                         qup->flags &= ~FOUND;
 529                         continue;
 530                 }
 531                 qup->dqblk.dqb_bsoftlimit = 0;
 532                 qup->dqblk.dqb_bhardlimit = 0;
 533                 qup->dqblk.dqb_isoftlimit = 0;
 534                 qup->dqblk.dqb_ihardlimit = 0;
 535         }
 536         return (1);
 537 }
 538
 539 /*
 540  * Convert a quotause list to an ASCII file of grace times.
 541  */
 542 int
 543 writetimes(quplist, outfd, quotatype)
 544         struct quotause *quplist;
 545         int outfd;
 546         int quotatype;
 547 {
 548         register struct quotause *qup;
 549         FILE *fd;
 550
 551         ftruncate(outfd, 0);
 552         lseek(outfd, 0, L_SET);
 553         if ((fd = fdopen(dup(outfd), "w")) == NULL)
 554                 err(1, "%s", tmpfil);
 555         fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n");
 556         fprintf(fd, "Grace period before enforcing soft limits for %ss:\n",
 557             qfextension[quotatype]);
 558         for (qup = quplist; qup; qup = qup->next) {
 559                 fprintf(fd, "%s: block grace period: %s, ",
 560                     qup->fsname, cvtstoa(qup->dqblk.dqb_btime));
 561                 fprintf(fd, "file grace period: %s\n",
 562                     cvtstoa(qup->dqblk.dqb_itime));
 563         }
 564         fclose(fd);
 565         return (1);
 566 }
 567
 568 /*
 569  * Merge changes of grace times in an ASCII file into a quotause list.
 570  */
 571 int
 572 readtimes(quplist, inname)
 573         struct quotause *quplist;
 574         char *inname;
 575 {
 576         register struct quotause *qup;
 577         FILE *fd;
 578         int cnt;
 579         register char *cp;
 580         time_t itime, btime, iseconds, bseconds;
 581         char *fsp, bunits[10], iunits[10], line1[BUFSIZ];
 582
 583         fd = fopen(inname, "r");
 584         if (fd == NULL) {
 585                 warnx("can't re-read temp file!!");
 586                 return (0);
 587         }
 588         /*
 589          * Discard two title lines, then read lines to process.
 590          */
 591         (void) fgets(line1, sizeof (line1), fd);
 592         (void) fgets(line1, sizeof (line1), fd);
 593         while (fgets(line1, sizeof (line1), fd) != NULL) {
 594                 if ((fsp = strtok(line1, " \t:")) == NULL) {
 595                         warnx("%s: bad format", line1);
 596                         return (0);
 597                 }
 598                 if ((cp = strtok((char *)0, "\n")) == NULL) {
 599                         warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
 600                         return (0);
 601                 }
 602                 cnt = sscanf(cp,
 603                     " block grace period: %ld %s file grace period: %ld %s",
 604                     &btime, bunits, &itime, iunits);
 605                 if (cnt != 4) {
 606                         warnx("%s:%s: bad format", 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, "%ld day%s", time, time == 1 ? "" : "s");
 650         } else if (time % (60 * 60) == 0) {
 651                 time /= 60 * 60;
 652                 sprintf(buf, "%ld hour%s", time, time == 1 ? "" : "s");
 653         } else if (time % 60 == 0) {
 654                 time /= 60;
 655                 sprintf(buf, "%ld minute%s", time, time == 1 ? "" : "s");
 656         } else
 657                 sprintf(buf, "%ld 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;
 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 }