usr.bin/quota/quota.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
  42
  43 #ifndef lint
  44 static const char sccsid[] = "from: @(#)quota.c 8.1 (Berkeley) 6/6/93";
  45 #endif /* not lint */
  46
  47 /*
  48  * Disk quota reporting program.
  49  */
  50 #include <sys/cdefs.h>
  51 __FBSDID("$FreeBSD$");
  52
  53 #include <sys/param.h>
  54 #include <sys/types.h>
  55 #include <sys/file.h>
  56 #include <sys/stat.h>
  57 #include <sys/mount.h>
  58 #include <sys/socket.h>
  59
  60 #include <rpc/rpc.h>
  61 #include <rpc/pmap_prot.h>
  62 #include <rpcsvc/rquota.h>
  63
  64 #include <ufs/ufs/quota.h>
  65
  66 #include <ctype.h>
  67 #include <err.h>
  68 #include <fstab.h>
  69 #include <grp.h>
  70 #include <libutil.h>
  71 #include <netdb.h>
  72 #include <pwd.h>
  73 #include <stdio.h>
  74 #include <stdint.h>
  75 #include <stdlib.h>
  76 #include <string.h>
  77 #include <time.h>
  78 #include <unistd.h>
  79
  80 const char *qfname = QUOTAFILENAME;
  81 const char *qfextension[] = INITQFNAMES;
  82
  83 struct quotause {
  84         struct  quotause *next;
  85         long    flags;
  86         struct  dqblk dqblk;
  87         char    fsname[MAXPATHLEN + 1];
  88 };
  89
  90 static char *timeprt(time_t seconds);
  91 static struct quotause *getprivs(long id, int quotatype);
  92 static void usage(void);
  93 static int showuid(u_long uid);
  94 static int showgid(u_long gid);
  95 static int showusrname(char *name);
  96 static int showgrpname(char *name);
  97 static int showquotas(int type, u_long id, const char *name);
  98 static void showrawquotas(int type, u_long id, struct quotause *qup);
  99 static void heading(int type, u_long id, const char *name, const char *tag);
 100 static int ufshasquota(struct fstab *fs, int type, char **qfnamep);
 101 static int getufsquota(struct fstab *fs, struct quotause *qup, long id,
 102         int quotatype);
 103 static int getnfsquota(struct statfs *fst, struct quotause *qup, long id,
 104         int quotatype);
 105 static int callaurpc(char *host, int prognum, int versnum, int procnum,
 106         xdrproc_t inproc, char *in, xdrproc_t outproc, char *out);
 107 static int alldigits(char *s);
 108
 109 int     hflag;
 110 int     lflag;
 111 int     rflag;
 112 int     qflag;
 113 int     vflag;
 114 char    *filename = NULL;
 115
 116 int
 117 main(int argc, char *argv[])
 118 {
 119         int ngroups;
 120         gid_t mygid, gidset[NGROUPS];
 121         int i, ch, gflag = 0, uflag = 0, errflag = 0;
 122
 123         while ((ch = getopt(argc, argv, "f:ghlrquv")) != -1) {
 124                 switch(ch) {
 125                 case 'f':
 126                         filename = optarg;
 127                         break;
 128                 case 'g':
 129                         gflag++;
 130                         break;
 131                 case 'h':
 132                         hflag++;
 133                         break;
 134                 case 'l':
 135                         lflag++;
 136                         break;
 137                 case 'q':
 138                         qflag++;
 139                         break;
 140                 case 'r':
 141                         rflag++;
 142                         break;
 143                 case 'u':
 144                         uflag++;
 145                         break;
 146                 case 'v':
 147                         vflag++;
 148                         break;
 149                 default:
 150                         usage();
 151                 }
 152         }
 153         argc -= optind;
 154         argv += optind;
 155         if (!uflag && !gflag)
 156                 uflag++;
 157         if (argc == 0) {
 158                 if (uflag)
 159                         errflag += showuid(getuid());
 160                 if (gflag) {
 161                         mygid = getgid();
 162                         ngroups = getgroups(NGROUPS, gidset);
 163                         if (ngroups < 0)
 164                                 err(1, "getgroups");
 165                         errflag += showgid(mygid);
 166                         for (i = 0; i < ngroups; i++)
 167                                 if (gidset[i] != mygid)
 168                                         errflag += showgid(gidset[i]);
 169                 }
 170                 return(errflag);
 171         }
 172         if (uflag && gflag)
 173                 usage();
 174         if (uflag) {
 175                 for (; argc > 0; argc--, argv++) {
 176                         if (alldigits(*argv))
 177                                 errflag += showuid(atoi(*argv));
 178                         else
 179                                 errflag += showusrname(*argv);
 180                 }
 181                 return(errflag);
 182         }
 183         if (gflag) {
 184                 for (; argc > 0; argc--, argv++) {
 185                         if (alldigits(*argv))
 186                                 errflag += showgid(atoi(*argv));
 187                         else
 188                                 errflag += showgrpname(*argv);
 189                 }
 190         }
 191         return(errflag);
 192 }
 193
 194 static void
 195 usage(void)
 196 {
 197
 198         fprintf(stderr, "%s\n%s\n%s\n",
 199             "usage: quota [-ghlu] [-f path] [-v | -q | -r]",
 200             "       quota [-hlu] [-f path] [-v | -q | -r] user ...",
 201             "       quota -g [-hl] [-f path] [-v | -q | -r] group ...");
 202         exit(1);
 203 }
 204
 205 /*
 206  * Print out quotas for a specified user identifier.
 207  */
 208 static int
 209 showuid(u_long uid)
 210 {
 211         struct passwd *pwd = getpwuid(uid);
 212         const char *name;
 213
 214         if (pwd == NULL)
 215                 name = "(no account)";
 216         else
 217                 name = pwd->pw_name;
 218         return(showquotas(USRQUOTA, uid, name));
 219 }
 220
 221 /*
 222  * Print out quotas for a specifed user name.
 223  */
 224 static int
 225 showusrname(char *name)
 226 {
 227         struct passwd *pwd = getpwnam(name);
 228
 229         if (pwd == NULL) {
 230                 warnx("%s: unknown user", name);
 231                 return(1);
 232         }
 233         return(showquotas(USRQUOTA, pwd->pw_uid, name));
 234 }
 235
 236 /*
 237  * Print out quotas for a specified group identifier.
 238  */
 239 static int
 240 showgid(u_long gid)
 241 {
 242         struct group *grp = getgrgid(gid);
 243         const char *name;
 244
 245         if (grp == NULL)
 246                 name = "(no entry)";
 247         else
 248                 name = grp->gr_name;
 249         return(showquotas(GRPQUOTA, gid, name));
 250 }
 251
 252 /*
 253  * Print out quotas for a specifed group name.
 254  */
 255 static int
 256 showgrpname(char *name)
 257 {
 258         struct group *grp = getgrnam(name);
 259
 260         if (grp == NULL) {
 261                 warnx("%s: unknown group", name);
 262                 return(1);
 263         }
 264         return(showquotas(GRPQUOTA, grp->gr_gid, name));
 265 }
 266
 267 static void
 268 prthumanval(int len, int64_t bytes)
 269 {
 270         char buf[len + 1];
 271
 272         humanize_number(buf, sizeof(buf), bytes, "", HN_AUTOSCALE,
 273             HN_B | HN_NOSPACE | HN_DECIMAL);
 274
 275         (void)printf(" %*s", len, buf);
 276 }
 277
 278 static int
 279 showquotas(int type, u_long id, const char *name)
 280 {
 281         struct quotause *qup;
 282         struct quotause *quplist;
 283         const char *msgi, *msgb;
 284         const char *nam;
 285         char *bgrace, *igrace;
 286         int lines = 0, overquota = 0;
 287         static time_t now;
 288
 289         if (now == 0)
 290                 time(&now);
 291         quplist = getprivs(id, type);
 292         for (qup = quplist; qup; qup = qup->next) {
 293                 msgi = (char *)0;
 294                 if (qup->dqblk.dqb_ihardlimit &&
 295                     qup->dqblk.dqb_curinodes >= qup->dqblk.dqb_ihardlimit) {
 296                         overquota++;
 297                         msgi = "File limit reached on";
 298                 }
 299                 else if (qup->dqblk.dqb_isoftlimit &&
 300                     qup->dqblk.dqb_curinodes >= qup->dqblk.dqb_isoftlimit) {
 301                         overquota++;
 302                         if (qup->dqblk.dqb_itime > now)
 303                                 msgi = "In file grace period on";
 304                         else
 305                                 msgi = "Over file quota on";
 306                 }
 307                 msgb = (char *)0;
 308                 if (qup->dqblk.dqb_bhardlimit &&
 309                     qup->dqblk.dqb_curblocks >= qup->dqblk.dqb_bhardlimit) {
 310                         overquota++;
 311                         msgb = "Block limit reached on";
 312                 }
 313                 else if (qup->dqblk.dqb_bsoftlimit &&
 314                     qup->dqblk.dqb_curblocks >= qup->dqblk.dqb_bsoftlimit) {
 315                         overquota++;
 316                         if (qup->dqblk.dqb_btime > now)
 317                                 msgb = "In block grace period on";
 318                         else
 319                                 msgb = "Over block quota on";
 320                 }
 321                 if (rflag) {
 322                         showrawquotas(type, id, qup);
 323                         continue;
 324                 }
 325                 if (!vflag &&
 326                     qup->dqblk.dqb_isoftlimit == 0 &&
 327                     qup->dqblk.dqb_ihardlimit == 0 &&
 328                     qup->dqblk.dqb_bsoftlimit == 0 &&
 329                     qup->dqblk.dqb_bhardlimit == 0)
 330                         continue;
 331                 if (qflag) {
 332                         if ((msgi != (char *)0 || msgb != (char *)0) &&
 333                             lines++ == 0)
 334                                 heading(type, id, name, "");
 335                         if (msgi != (char *)0)
 336                                 printf("\t%s %s\n", msgi, qup->fsname);
 337                         if (msgb != (char *)0)
 338                                 printf("\t%s %s\n", msgb, qup->fsname);
 339                         continue;
 340                 }
 341                 if (vflag ||
 342                     qup->dqblk.dqb_curblocks ||
 343                     qup->dqblk.dqb_curinodes) {
 344                         if (lines++ == 0)
 345                                 heading(type, id, name, "");
 346                         nam = qup->fsname;
 347                         if (strlen(qup->fsname) > 15) {
 348                                 printf("%s\n", qup->fsname);
 349                                 nam = "";
 350                         }
 351                         printf("%15s", nam);
 352                         if (hflag) {
 353                                 prthumanval(7, dbtob(qup->dqblk.dqb_curblocks));
 354                                 printf("%c", (msgb == (char *)0) ? ' ' : '*');
 355                                 prthumanval(6, dbtob(qup->dqblk.dqb_bsoftlimit));
 356                                 prthumanval(7, dbtob(qup->dqblk.dqb_bhardlimit));
 357                         } else {
 358                                 printf(" %7ju%c %6ju %7ju",
 359                                     (uintmax_t)(dbtob(qup->dqblk.dqb_curblocks)
 360                                         / 1024),
 361                                     (msgb == NULL) ? ' ' : '*',
 362                                     (uintmax_t)(dbtob(qup->dqblk.dqb_bsoftlimit)
 363                                         / 1024),
 364                                     (uintmax_t)(dbtob(qup->dqblk.dqb_bhardlimit)
 365                                         / 1024));
 366                         }
 367                         if (msgb != NULL)
 368                                 bgrace = timeprt(qup->dqblk.dqb_btime);
 369                         if (msgi != NULL)
 370                                 igrace = timeprt(qup->dqblk.dqb_itime);
 371                         printf(" %7s %7ju%c %6ju %7ju %7s\n",
 372                             (msgb == NULL) ? "" : bgrace,
 373                             (uintmax_t)qup->dqblk.dqb_curinodes,
 374                             (msgi == NULL) ? ' ' : '*',
 375                             (uintmax_t)qup->dqblk.dqb_isoftlimit,
 376                             (uintmax_t)qup->dqblk.dqb_ihardlimit,
 377                             (msgi == NULL) ? "" : igrace
 378                         );
 379                         if (msgb != NULL)
 380                                 free(bgrace);
 381                         if (msgi != NULL)
 382                                 free(igrace);
 383                         continue;
 384                 }
 385         }
 386         if (!qflag && !rflag && lines == 0)
 387                 heading(type, id, name, "none");
 388         return(overquota);
 389 }
 390
 391 static void
 392 showrawquotas(type, id, qup)
 393         int type;
 394         u_long id;
 395         struct quotause *qup;
 396 {
 397         printf("Raw %s quota information for id %lu on %s\n",
 398             type == USRQUOTA ? "user" : "group", id, qup->fsname);
 399         printf("block hard limit:     %ju\n", (uintmax_t)qup->dqblk.dqb_bhardlimit);
 400         printf("block soft limit:     %ju\n", (uintmax_t)qup->dqblk.dqb_bsoftlimit);
 401         printf("current block count:  %ju\n", (uintmax_t)qup->dqblk.dqb_curblocks);
 402         printf("i-node hard limit:    %ju\n", (uintmax_t)qup->dqblk.dqb_ihardlimit);
 403         printf("i-node soft limit:    %ju\n", (uintmax_t)qup->dqblk.dqb_isoftlimit);
 404         printf("current i-node count: %ju\n", (uintmax_t)qup->dqblk.dqb_curinodes);
 405         printf("block grace time:     %jd", (intmax_t)qup->dqblk.dqb_btime);
 406         if (qup->dqblk.dqb_btime != 0)
 407                 printf(" %s", ctime(&qup->dqblk.dqb_btime));
 408         else
 409                 printf("\n");
 410         printf("i-node grace time:    %jd", (intmax_t)qup->dqblk.dqb_itime);
 411         if (qup->dqblk.dqb_itime != 0)
 412                 printf(" %s", ctime(&qup->dqblk.dqb_itime));
 413         else
 414                 printf("\n");
 415 }
 416
 417
 418 static void
 419 heading(int type, u_long id, const char *name, const char *tag)
 420 {
 421
 422         printf("Disk quotas for %s %s (%cid %lu): %s\n", qfextension[type],
 423             name, *qfextension[type], id, tag);
 424         if (!qflag && tag[0] == '\0') {
 425                 printf("%15s %7s  %6s %7s %7s %7s  %6s %7s %7s\n"
 426                         , "Filesystem"
 427                         , "usage"
 428                         , "quota"
 429                         , "limit"
 430                         , "grace"
 431                         , "files"
 432                         , "quota"
 433                         , "limit"
 434                         , "grace"
 435                 );
 436         }
 437 }
 438
 439 /*
 440  * Calculate the grace period and return a printable string for it.
 441  */
 442 static char *
 443 timeprt(time_t seconds)
 444 {
 445         time_t hours, minutes;
 446         char    *buf;
 447         static time_t now;
 448
 449         if (now == 0)
 450                 time(&now);
 451         if (now > seconds) {
 452                 return strdup("none");
 453         }
 454         seconds -= now;
 455         minutes = (seconds + 30) / 60;
 456         hours = (minutes + 30) / 60;
 457         if (hours >= 36) {
 458                 if (asprintf(&buf, "%lddays", ((long)hours + 12) / 24) < 0)
 459                         errx(1, "asprintf failed in timeprt(1)");
 460                 return (buf);
 461         }
 462         if (minutes >= 60) {
 463                 if (asprintf(&buf, "%2ld:%ld", (long)minutes / 60,
 464                     (long)minutes % 60) < 0)
 465                         errx(1, "asprintf failed in timeprt(2)");
 466                 return (buf);
 467         }
 468         if (asprintf(&buf, "%2ld", (long)minutes) < 0)
 469                 errx(1, "asprintf failed in timeprt(3)");
 470         return (buf);
 471 }
 472
 473 /*
 474  * Collect the requested quota information.
 475  */
 476 static struct quotause *
 477 getprivs(long id, int quotatype)
 478 {
 479         struct quotause *qup, *quptail = NULL;
 480         struct fstab *fs;
 481         struct quotause *quphead;
 482         struct statfs *fst;
 483         int nfst, i;
 484         struct statfs sfb;
 485
 486         qup = quphead = (struct quotause *)0;
 487
 488         if (filename != NULL && statfs(filename, &sfb) != 0)
 489                 err(1, "cannot statfs %s", filename);
 490         nfst = getmntinfo(&fst, MNT_NOWAIT);
 491         if (nfst == 0)
 492                 errx(2, "no filesystems mounted!");
 493         setfsent();
 494         for (i=0; i<nfst; i++) {
 495                 if (qup == NULL) {
 496                         if ((qup = (struct quotause *)malloc(sizeof *qup))
 497                             == NULL)
 498                                 errx(2, "out of memory");
 499                 }
 500                 /*
 501                  * See if the user requested a specific file system
 502                  * or specified a file inside a mounted file system.
 503                  */
 504                 if (filename != NULL &&
 505                     strcmp(sfb.f_mntonname, fst[i].f_mntonname) != 0)
 506                         continue;
 507                 if (strcmp(fst[i].f_fstypename, "nfs") == 0) {
 508                         if (lflag)
 509                                 continue;
 510                         if (getnfsquota(&fst[i], qup, id, quotatype) == 0)
 511                                 continue;
 512                 } else if (strcmp(fst[i].f_fstypename, "ufs") == 0) {
 513                         /*
 514                          * XXX
 515                          * UFS filesystems must be in /etc/fstab, and must
 516                          * indicate that they have quotas on (?!) This is quite
 517                          * unlike SunOS where quotas can be enabled/disabled
 518                          * on a filesystem independent of /etc/fstab, and it
 519                          * will still print quotas for them.
 520                          */
 521                         if ((fs = getfsspec(fst[i].f_mntfromname)) == NULL)
 522                                 continue;
 523                         if (getufsquota(fs, qup, id, quotatype) == 0)
 524                                 continue;
 525                 } else
 526                         continue;
 527                 strcpy(qup->fsname, fst[i].f_mntonname);
 528                 if (quphead == NULL)
 529                         quphead = qup;
 530                 else
 531                         quptail->next = qup;
 532                 quptail = qup;
 533                 quptail->next = 0;
 534                 qup = NULL;
 535         }
 536         if (qup)
 537                 free(qup);
 538         endfsent();
 539         return (quphead);
 540 }
 541
 542 /*
 543  * Check to see if a particular quota is to be enabled.
 544  */
 545 static int
 546 ufshasquota(struct fstab *fs, int type, char **qfnamep)
 547 {
 548         char *opt;
 549         char *cp;
 550         struct statfs sfb;
 551         static char initname, usrname[100], grpname[100];
 552         static char buf[BUFSIZ];
 553
 554         if (!initname) {
 555                 (void)snprintf(usrname, sizeof(usrname), "%s%s",
 556                     qfextension[USRQUOTA], qfname);
 557                 (void)snprintf(grpname, sizeof(grpname), "%s%s",
 558                     qfextension[GRPQUOTA], qfname);
 559                 initname = 1;
 560         }
 561         strcpy(buf, fs->fs_mntops);
 562         for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
 563                 if ((cp = index(opt, '=')))
 564                         *cp++ = '\0';
 565                 if (type == USRQUOTA && strcmp(opt, usrname) == 0)
 566                         break;
 567                 if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
 568                         break;
 569         }
 570         if (!opt)
 571                 return (0);
 572         if (cp)
 573                 *qfnamep = cp;
 574         else {
 575                 (void)snprintf(buf, sizeof(buf), "%s/%s.%s", fs->fs_file,
 576                     qfname, qfextension[type]);
 577                 *qfnamep = buf;
 578         }
 579         if (statfs(fs->fs_file, &sfb) != 0) {
 580                 warn("cannot statfs mount point %s", fs->fs_file);
 581                 return (0);
 582         }
 583         if (strcmp(fs->fs_file, sfb.f_mntonname)) {
 584                 warnx("%s not mounted for %s quotas", fs->fs_file,
 585                     type == USRQUOTA ? "user" : "group");
 586                 return (0);
 587         }
 588         return (1);
 589 }
 590
 591 static int
 592 getufsquota(struct fstab *fs, struct quotause *qup, long id, int quotatype)
 593 {
 594         char *qfpathname;
 595         int fd, qcmd;
 596
 597         qcmd = QCMD(Q_GETQUOTA, quotatype);
 598         if (!ufshasquota(fs, quotatype, &qfpathname))
 599                 return (0);
 600
 601         if (quotactl(fs->fs_file, qcmd, id, (char *)&qup->dqblk) != 0) {
 602                 if ((fd = open(qfpathname, O_RDONLY)) < 0) {
 603                         warn("%s", qfpathname);
 604                         return (0);
 605                 }
 606                 (void) lseek(fd, (off_t)(id * sizeof(struct dqblk)), L_SET);
 607                 switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) {
 608                 case 0:                         /* EOF */
 609                         /*
 610                          * Convert implicit 0 quota (EOF)
 611                          * into an explicit one (zero'ed dqblk)
 612                          */
 613                         bzero((caddr_t)&qup->dqblk, sizeof(struct dqblk));
 614                         break;
 615                 case sizeof(struct dqblk):      /* OK */
 616                         break;
 617                 default:                /* ERROR */
 618                         warn("read error: %s", qfpathname);
 619                         close(fd);
 620                         return (0);
 621                 }
 622                 close(fd);
 623         }
 624         return (1);
 625 }
 626
 627 static int
 628 getnfsquota(struct statfs *fst, struct quotause *qup, long id, int quotatype)
 629 {
 630         struct getquota_args gq_args;
 631         struct getquota_rslt gq_rslt;
 632         struct dqblk *dqp = &qup->dqblk;
 633         struct timeval tv;
 634         char *cp;
 635
 636         if (fst->f_flags & MNT_LOCAL)
 637                 return (0);
 638
 639         /*
 640          * rpc.rquotad does not support group quotas
 641          */
 642         if (quotatype != USRQUOTA)
 643                 return (0);
 644
 645         /*
 646          * must be some form of "hostname:/path"
 647          */
 648         cp = strchr(fst->f_mntfromname, ':');
 649         if (cp == NULL) {
 650                 warnx("cannot find hostname for %s", fst->f_mntfromname);
 651                 return (0);
 652         }
 653
 654         *cp = '\0';
 655         if (*(cp+1) != '/') {
 656                 *cp = ':';
 657                 return (0);
 658         }
 659
 660         /* Avoid attempting the RPC for special amd(8) filesystems. */
 661         if (strncmp(fst->f_mntfromname, "pid", 3) == 0 &&
 662             strchr(fst->f_mntfromname, '@') != NULL) {
 663                 *cp = ':';
 664                 return (0);
 665         }
 666
 667         gq_args.gqa_pathp = cp + 1;
 668         gq_args.gqa_uid = id;
 669         if (callaurpc(fst->f_mntfromname, RQUOTAPROG, RQUOTAVERS,
 670             RQUOTAPROC_GETQUOTA, (xdrproc_t)xdr_getquota_args, (char *)&gq_args,
 671             (xdrproc_t)xdr_getquota_rslt, (char *)&gq_rslt) != 0) {
 672                 *cp = ':';
 673                 return (0);
 674         }
 675
 676         switch (gq_rslt.status) {
 677         case Q_NOQUOTA:
 678                 break;
 679         case Q_EPERM:
 680                 warnx("quota permission error, host: %s",
 681                         fst->f_mntfromname);
 682                 break;
 683         case Q_OK:
 684                 gettimeofday(&tv, NULL);
 685                         /* blocks*/
 686                 dqp->dqb_bhardlimit =
 687                     gq_rslt.getquota_rslt_u.gqr_rquota.rq_bhardlimit *
 688                     (gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE);
 689                 dqp->dqb_bsoftlimit =
 690                     gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsoftlimit *
 691                     (gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE);
 692                 dqp->dqb_curblocks =
 693                     gq_rslt.getquota_rslt_u.gqr_rquota.rq_curblocks *
 694                     (gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE);
 695                         /* inodes */
 696                 dqp->dqb_ihardlimit =
 697                         gq_rslt.getquota_rslt_u.gqr_rquota.rq_fhardlimit;
 698                 dqp->dqb_isoftlimit =
 699                         gq_rslt.getquota_rslt_u.gqr_rquota.rq_fsoftlimit;
 700                 dqp->dqb_curinodes =
 701                         gq_rslt.getquota_rslt_u.gqr_rquota.rq_curfiles;
 702                         /* grace times */
 703                 dqp->dqb_btime =
 704                     tv.tv_sec + gq_rslt.getquota_rslt_u.gqr_rquota.rq_btimeleft;
 705                 dqp->dqb_itime =
 706                     tv.tv_sec + gq_rslt.getquota_rslt_u.gqr_rquota.rq_ftimeleft;
 707                 *cp = ':';
 708                 return (1);
 709         default:
 710                 warnx("bad rpc result, host: %s", fst->f_mntfromname);
 711                 break;
 712         }
 713         *cp = ':';
 714         return (0);
 715 }
 716
 717 static int
 718 callaurpc(char *host, int prognum, int versnum, int procnum,
 719     xdrproc_t inproc, char *in, xdrproc_t outproc, char *out)
 720 {
 721         struct sockaddr_in server_addr;
 722         enum clnt_stat clnt_stat;
 723         struct hostent *hp;
 724         struct timeval timeout, tottimeout;
 725
 726         CLIENT *client = NULL;
 727         int sock = RPC_ANYSOCK;
 728
 729         if ((hp = gethostbyname(host)) == NULL)
 730                 return ((int) RPC_UNKNOWNHOST);
 731         timeout.tv_usec = 0;
 732         timeout.tv_sec = 6;
 733         bcopy(hp->h_addr, &server_addr.sin_addr,
 734                         MIN(hp->h_length,(int)sizeof(server_addr.sin_addr)));
 735         server_addr.sin_family = AF_INET;
 736         server_addr.sin_port =  0;
 737
 738         if ((client = clntudp_create(&server_addr, prognum,
 739             versnum, timeout, &sock)) == NULL)
 740                 return ((int) rpc_createerr.cf_stat);
 741
 742         client->cl_auth = authunix_create_default();
 743         tottimeout.tv_sec = 25;
 744         tottimeout.tv_usec = 0;
 745         clnt_stat = clnt_call(client, procnum, inproc, in,
 746             outproc, out, tottimeout);
 747
 748         return ((int) clnt_stat);
 749 }
 750
 751 static int
 752 alldigits(char *s)
 753 {
 754         int c;
 755
 756         c = *s++;
 757         do {
 758                 if (!isdigit(c))
 759                         return (0);
 760         } while ((c = *s++));
 761         return (1);
 762 }