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. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#) Copyright (c) 1980, 1990, 1993 The Regents of the University of California. All rights reserved.
33 * @(#)edquota.c 8.1 (Berkeley) 6/6/93
34 * $FreeBSD: src/usr.sbin/edquota/edquota.c,v 1.9.2.6 2002/10/31 22:38:43 iedowse Exp $
35 */
36
37 /*
38 * Disk quota editor.
39 */
40 #include <sys/param.h>
41 #include <sys/stat.h>
42 #include <sys/wait.h>
43 #include <vfs/ufs/quota.h>
44 #include <ctype.h>
45 #include <err.h>
46 #include <errno.h>
47 #include <fcntl.h>
48 #include <fstab.h>
49 #include <grp.h>
50 #include <pwd.h>
51 #include <signal.h>
52 #include <stdio.h>
53 #include <stdlib.h>
54 #include <string.h>
55 #include <unistd.h>
56 #include "pathnames.h"
57
58 const char *qfname = QUOTAFILENAME;
59 const char *qfextension[] = INITQFNAMES;
60 const char *quotagroup = QUOTAGROUP;
61 char tmpfil[] = _PATH_TMP;
62
63 struct quotause {
64 struct quotause *next;
65 long flags;
66 struct ufs_dqblk dqblk;
67 char fsname[MAXPATHLEN + 1];
68 char qfname[1]; /* actually longer */
69 };
70 #define FOUND 0x01
71
72 int alldigits(const char *s);
73 int cvtatos(time_t, char *, time_t *);
74 char *cvtstoa(time_t);
75 int editit(char *);
76 void freeprivs(struct quotause *);
77 int getentry(const char *, int);
78 struct quotause *getprivs(long, int, char *);
79 int hasquota(struct fstab *, int, char **);
80 void putprivs(long, int, struct quotause *);
81 int readprivs(struct quotause *, char *);
82 int readtimes(struct quotause *, char *);
83 static void usage(void);
84 int writetimes(struct quotause *, int, int);
85 int writeprivs(struct quotause *, int, char *, int);
86
87 int
main(int argc,char ** argv)88 main(int argc, char **argv)
89 {
90 struct quotause *qup, *protoprivs, *curprivs;
91 long id, protoid;
92 long long lim;
93 int i, quotatype, range, tmpfd;
94 uid_t startuid, enduid;
95 u_int32_t *limp;
96 char *protoname, *cp, *oldoptarg, ch;
97 int eflag = 0, tflag = 0, pflag = 0;
98 char *fspath = NULL;
99 char buf[MAXLOGNAME];
100
101 if (argc < 2)
102 usage();
103 if (getuid())
104 errx(1, "permission denied");
105 quotatype = USRQUOTA;
106 protoprivs = NULL;
107 curprivs = NULL;
108 protoname = NULL;
109 while ((ch = getopt(argc, argv, "ugtf:p:e:")) != -1) {
110 switch(ch) {
111 case 'f':
112 fspath = optarg;
113 break;
114 case 'p':
115 protoname = optarg;
116 pflag++;
117 break;
118 case 'g':
119 quotatype = GRPQUOTA;
120 break;
121 case 'u':
122 quotatype = USRQUOTA;
123 break;
124 case 't':
125 tflag++;
126 break;
127 case 'e':
128 if ((qup = malloc(sizeof(*qup))) == NULL)
129 errx(2, "out of memory");
130 bzero(qup, sizeof(*qup));
131 i = 0;
132 oldoptarg = optarg;
133 for (cp = optarg; (cp = strsep(&optarg, ":")) != NULL;
134 i++) {
135 if (cp != oldoptarg)
136 *(cp - 1) = ':';
137 limp = NULL;
138 switch (i) {
139 case 0:
140 strlcpy(qup->fsname, cp,
141 sizeof(qup->fsname));
142 break;
143 case 1:
144 limp = &qup->dqblk.dqb_bsoftlimit;
145 break;
146 case 2:
147 limp = &qup->dqblk.dqb_bhardlimit;
148 break;
149 case 3:
150 limp = &qup->dqblk.dqb_isoftlimit;
151 break;
152 case 4:
153 limp = &qup->dqblk.dqb_ihardlimit;
154 break;
155 default:
156 warnx("incorrect quota specification: "
157 "%s", oldoptarg);
158 usage();
159 break; /* XXX: report an error */
160 }
161 if (limp != NULL) {
162 lim = strtoll(cp, NULL, 10);
163 if (lim < 0 || lim > UINT_MAX)
164 errx(1, "invalid limit value: "
165 "%lld", lim);
166 *limp = (u_int32_t)lim;
167 }
168 }
169 qup->dqblk.dqb_bsoftlimit =
170 btodb((off_t)qup->dqblk.dqb_bsoftlimit * 1024);
171 qup->dqblk.dqb_bhardlimit =
172 btodb((off_t)qup->dqblk.dqb_bhardlimit * 1024);
173 if (protoprivs == NULL) {
174 protoprivs = curprivs = qup;
175 } else {
176 curprivs->next = qup;
177 curprivs = qup;
178 }
179 eflag++;
180 pflag++;
181 break;
182 default:
183 usage();
184 }
185 }
186 argc -= optind;
187 argv += optind;
188 if (pflag) {
189 if (protoprivs == NULL) {
190 if ((protoid = getentry(protoname, quotatype)) == -1)
191 exit(1);
192 protoprivs = getprivs(protoid, quotatype, fspath);
193 for (qup = protoprivs; qup; qup = qup->next) {
194 qup->dqblk.dqb_btime = 0;
195 qup->dqblk.dqb_itime = 0;
196 }
197 }
198 for (; argc-- > 0; argv++) {
199 if (strspn(*argv, "0123456789-") == strlen(*argv) &&
200 (cp = strchr(*argv, '-')) != NULL) {
201 *cp++ = '\0';
202 startuid = atoi(*argv);
203 enduid = atoi(cp);
204 if (enduid < startuid)
205 errx(1,
206 "ending uid (%d) must be >= starting uid (%d) when using uid ranges",
207 enduid, startuid);
208 range = 1;
209 } else {
210 startuid = enduid = 0;
211 range = 0;
212 }
213 for ( ; startuid <= enduid; startuid++) {
214 if (range)
215 snprintf(buf, sizeof(buf), "%d",
216 startuid);
217 else
218 snprintf(buf, sizeof(buf), "%s",
219 *argv);
220 if ((id = getentry(buf, quotatype)) < 0)
221 continue;
222 if (eflag) {
223 for (qup = protoprivs; qup;
224 qup = qup->next) {
225 curprivs = getprivs(id,
226 quotatype, qup->fsname);
227 if (curprivs == NULL)
228 continue;
229 strcpy(qup->qfname,
230 curprivs->qfname);
231 strcpy(qup->fsname,
232 curprivs->fsname);
233 }
234 }
235 putprivs(id, quotatype, protoprivs);
236 }
237 }
238 exit(0);
239 }
240 tmpfd = mkstemp(tmpfil);
241 fchown(tmpfd, getuid(), getgid());
242 if (tflag) {
243 protoprivs = getprivs(0, quotatype, fspath);
244 if (writetimes(protoprivs, tmpfd, quotatype) == 0)
245 exit(1);
246 if (editit(tmpfil) && readtimes(protoprivs, tmpfil))
247 putprivs(0, quotatype, protoprivs);
248 freeprivs(protoprivs);
249 close(tmpfd);
250 unlink(tmpfil);
251 exit(0);
252 }
253 for ( ; argc > 0; argc--, argv++) {
254 if ((id = getentry(*argv, quotatype)) == -1)
255 continue;
256 curprivs = getprivs(id, quotatype, fspath);
257 if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0)
258 continue;
259 if (editit(tmpfil) && readprivs(curprivs, tmpfil))
260 putprivs(id, quotatype, curprivs);
261 freeprivs(curprivs);
262 }
263 close(tmpfd);
264 unlink(tmpfil);
265 exit(0);
266 }
267
268 static void
usage(void)269 usage(void)
270 {
271 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
272 "usage: edquota [-u] [-f fspath] [-p username] username ...",
273 " edquota [-u] -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]",
274 " username ...",
275 " edquota -g [-f fspath] [-p groupname] groupname ...",
276 " edquota -g -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]",
277 " groupname ...",
278 " edquota [-u] -t [-f fspath]",
279 " edquota -g -t [-f fspath]");
280 exit(1);
281 }
282
283 /*
284 * This routine converts a name for a particular quota type to
285 * an identifier. This routine must agree with the kernel routine
286 * getinoquota as to the interpretation of quota types.
287 */
288 int
getentry(const char * name,int quotatype)289 getentry(const char *name, int quotatype)
290 {
291 struct passwd *pw;
292 struct group *gr;
293
294 if (alldigits(name))
295 return (atoi(name));
296 switch(quotatype) {
297 case USRQUOTA:
298 if ((pw = getpwnam(name)))
299 return (pw->pw_uid);
300 warnx("%s: no such user", name);
301 break;
302 case GRPQUOTA:
303 if ((gr = getgrnam(name)))
304 return (gr->gr_gid);
305 warnx("%s: no such group", name);
306 break;
307 default:
308 warnx("%d: unknown quota type", quotatype);
309 break;
310 }
311 sleep(1);
312 return (-1);
313 }
314
315 /*
316 * Collect the requested quota information.
317 */
318 struct quotause *
getprivs(long id,int quotatype,char * fspath)319 getprivs(long id, int quotatype, char *fspath)
320 {
321 struct fstab *fs;
322 struct quotause *qup, *quptail;
323 struct quotause *quphead;
324 int qcmd, qupsize, fd;
325 char *qfpathname;
326 static int warned = 0;
327
328 setfsent();
329 quphead = quptail = NULL;
330 qcmd = QCMD(Q_GETQUOTA, quotatype);
331 while ((fs = getfsent())) {
332 if (fspath && *fspath && strcmp(fspath, fs->fs_spec) &&
333 strcmp(fspath, fs->fs_file))
334 continue;
335 if (strcmp(fs->fs_vfstype, "ufs"))
336 continue;
337 if (!hasquota(fs, quotatype, &qfpathname))
338 continue;
339 qupsize = sizeof(*qup) + strlen(qfpathname);
340 if ((qup = (struct quotause *)malloc(qupsize)) == NULL)
341 errx(2, "out of memory");
342 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) {
343 if (errno == EOPNOTSUPP && !warned) {
344 warned++;
345 warnx("warning: quotas are not compiled into this kernel");
346 sleep(3);
347 }
348 if ((fd = open(qfpathname, O_RDONLY)) < 0) {
349 fd = open(qfpathname, O_RDWR|O_CREAT, 0640);
350 if (fd < 0 && errno != ENOENT) {
351 warn("%s", qfpathname);
352 free(qup);
353 continue;
354 }
355 warnx("creating quota file %s", qfpathname);
356 sleep(3);
357 fchown(fd, getuid(),
358 getentry(quotagroup, GRPQUOTA));
359 fchmod(fd, 0640);
360 }
361 lseek(fd, (long)(id * sizeof(struct ufs_dqblk)), L_SET);
362 switch (read(fd, &qup->dqblk, sizeof(struct ufs_dqblk))) {
363 case 0: /* EOF */
364 /*
365 * Convert implicit 0 quota (EOF)
366 * into an explicit one (zero'ed dqblk)
367 */
368 bzero((caddr_t)&qup->dqblk,
369 sizeof(struct ufs_dqblk));
370 break;
371
372 case sizeof(struct ufs_dqblk): /* OK */
373 break;
374
375 default: /* ERROR */
376 warn("read error in %s", qfpathname);
377 close(fd);
378 free(qup);
379 continue;
380 }
381 close(fd);
382 }
383 strcpy(qup->qfname, qfpathname);
384 strcpy(qup->fsname, fs->fs_file);
385 if (quphead == NULL)
386 quphead = qup;
387 else
388 quptail->next = qup;
389 quptail = qup;
390 qup->next = NULL;
391 }
392 endfsent();
393 return (quphead);
394 }
395
396 /*
397 * Store the requested quota information.
398 */
399 void
putprivs(long id,int quotatype,struct quotause * quplist)400 putprivs(long id, int quotatype, struct quotause *quplist)
401 {
402 struct quotause *qup;
403 int qcmd, fd;
404
405 qcmd = QCMD(Q_SETQUOTA, quotatype);
406 for (qup = quplist; qup; qup = qup->next) {
407 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0)
408 continue;
409 if ((fd = open(qup->qfname, O_WRONLY)) < 0) {
410 warn("%s", qup->qfname);
411 } else {
412 lseek(fd, (long)id * (long)sizeof(struct ufs_dqblk), 0);
413 if (write(fd, &qup->dqblk, sizeof(struct ufs_dqblk)) !=
414 sizeof(struct ufs_dqblk)) {
415 warn("%s", qup->qfname);
416 }
417 close(fd);
418 }
419 }
420 }
421
422 /*
423 * Take a list of priviledges and get it edited.
424 */
425 int
editit(char * tmpf)426 editit(char *tmpf)
427 {
428 long omask;
429 int pid, status;
430
431 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
432 top:
433 if ((pid = fork()) < 0) {
434
435 if (errno == EPROCLIM) {
436 warnx("you have too many processes");
437 return(0);
438 }
439 if (errno == EAGAIN) {
440 sleep(1);
441 goto top;
442 }
443 warn("fork");
444 return (0);
445 }
446 if (pid == 0) {
447 const char *ed;
448
449 sigsetmask(omask);
450 setgid(getgid());
451 setuid(getuid());
452 if ((ed = getenv("EDITOR")) == NULL)
453 ed = _PATH_VI;
454 execlp(ed, ed, tmpf, NULL);
455 err(1, "%s", ed);
456 }
457 waitpid(pid, &status, 0);
458 sigsetmask(omask);
459 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
460 return (0);
461 return (1);
462 }
463
464 /*
465 * Convert a quotause list to an ASCII file.
466 */
467 int
writeprivs(struct quotause * quplist,int outfd,char * name,int quotatype)468 writeprivs(struct quotause *quplist, int outfd, char *name, int quotatype)
469 {
470 struct quotause *qup;
471 FILE *fd;
472
473 ftruncate(outfd, 0);
474 lseek(outfd, 0, L_SET);
475 if ((fd = fdopen(dup(outfd), "w")) == NULL)
476 err(1, "%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 %lu, limits (soft = %lu, hard = %lu)\n",
480 qup->fsname, "kbytes in use:",
481 (unsigned long)(dbtob(qup->dqblk.dqb_curblocks) / 1024),
482 (unsigned long)(dbtob(qup->dqblk.dqb_bsoftlimit) / 1024),
483 (unsigned long)(dbtob(qup->dqblk.dqb_bhardlimit) / 1024));
484 fprintf(fd, "%s %lu, limits (soft = %lu, hard = %lu)\n",
485 "\tinodes in use:",
486 (unsigned long)qup->dqblk.dqb_curinodes,
487 (unsigned long)qup->dqblk.dqb_isoftlimit,
488 (unsigned long)qup->dqblk.dqb_ihardlimit);
489 }
490 fclose(fd);
491 return (1);
492 }
493
494 /*
495 * Merge changes to an ASCII file into a quotause list.
496 */
497 int
readprivs(struct quotause * quplist,char * inname)498 readprivs(struct quotause *quplist, char *inname)
499 {
500 struct quotause *qup;
501 FILE *fd;
502 unsigned long bhardlimit, bsoftlimit, curblocks;
503 unsigned long ihardlimit, isoftlimit, curinodes;
504 int cnt;
505 char *cp;
506 struct ufs_dqblk dqblk;
507 char *fsp, line1[BUFSIZ], line2[BUFSIZ];
508
509 fd = fopen(inname, "r");
510 if (fd == NULL) {
511 warnx("can't re-read temp file!!");
512 return (0);
513 }
514 /*
515 * Discard title line, then read pairs of lines to process.
516 */
517 fgets(line1, sizeof(line1), fd);
518 while (fgets(line1, sizeof(line1), fd) != NULL &&
519 fgets(line2, sizeof(line2), fd) != NULL) {
520 if ((fsp = strtok(line1, " \t:")) == NULL) {
521 warnx("%s: bad format", line1);
522 return (0);
523 }
524 if ((cp = strtok(NULL, "\n")) == NULL) {
525 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
526 return (0);
527 }
528 cnt = sscanf(cp,
529 " kbytes in use: %lu, limits (soft = %lu, hard = %lu)",
530 &curblocks, &bsoftlimit, &bhardlimit);
531 if (cnt != 3) {
532 warnx("%s:%s: bad format", fsp, cp);
533 return (0);
534 }
535 dqblk.dqb_curblocks = btodb((off_t)curblocks * 1024);
536 dqblk.dqb_bsoftlimit = btodb((off_t)bsoftlimit * 1024);
537 dqblk.dqb_bhardlimit = btodb((off_t)bhardlimit * 1024);
538 if ((cp = strtok(line2, "\n")) == NULL) {
539 warnx("%s: %s: bad format", fsp, line2);
540 return (0);
541 }
542 cnt = sscanf(cp,
543 "\tinodes in use: %lu, limits (soft = %lu, hard = %lu)",
544 &curinodes, &isoftlimit, &ihardlimit);
545 if (cnt != 3) {
546 warnx("%s: %s: bad format", fsp, line2);
547 return (0);
548 }
549 dqblk.dqb_curinodes = curinodes;
550 dqblk.dqb_isoftlimit = isoftlimit;
551 dqblk.dqb_ihardlimit = ihardlimit;
552 for (qup = quplist; qup; qup = qup->next) {
553 if (strcmp(fsp, qup->fsname))
554 continue;
555 /*
556 * Cause time limit to be reset when the quota
557 * is next used if previously had no soft limit
558 * or were under it, but now have a soft limit
559 * and are over it.
560 */
561 if (dqblk.dqb_bsoftlimit &&
562 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit &&
563 (qup->dqblk.dqb_bsoftlimit == 0 ||
564 qup->dqblk.dqb_curblocks <
565 qup->dqblk.dqb_bsoftlimit))
566 qup->dqblk.dqb_btime = 0;
567 if (dqblk.dqb_isoftlimit &&
568 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit &&
569 (qup->dqblk.dqb_isoftlimit == 0 ||
570 qup->dqblk.dqb_curinodes <
571 qup->dqblk.dqb_isoftlimit))
572 qup->dqblk.dqb_itime = 0;
573 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit;
574 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit;
575 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit;
576 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit;
577 qup->flags |= FOUND;
578 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks &&
579 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes)
580 break;
581 warnx("%s: cannot change current allocation", fsp);
582 break;
583 }
584 }
585 fclose(fd);
586 /*
587 * Disable quotas for any filesystems that have not been found.
588 */
589 for (qup = quplist; qup; qup = qup->next) {
590 if (qup->flags & FOUND) {
591 qup->flags &= ~FOUND;
592 continue;
593 }
594 qup->dqblk.dqb_bsoftlimit = 0;
595 qup->dqblk.dqb_bhardlimit = 0;
596 qup->dqblk.dqb_isoftlimit = 0;
597 qup->dqblk.dqb_ihardlimit = 0;
598 }
599 return (1);
600 }
601
602 /*
603 * Convert a quotause list to an ASCII file of grace times.
604 */
605 int
writetimes(struct quotause * quplist,int outfd,int quotatype)606 writetimes(struct quotause *quplist, int outfd, int quotatype)
607 {
608 struct quotause *qup;
609 FILE *fd;
610
611 ftruncate(outfd, 0);
612 lseek(outfd, 0, L_SET);
613 if ((fd = fdopen(dup(outfd), "w")) == NULL)
614 err(1, "%s", tmpfil);
615 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n");
616 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n",
617 qfextension[quotatype]);
618 for (qup = quplist; qup; qup = qup->next) {
619 fprintf(fd, "%s: block grace period: %s, ",
620 qup->fsname, cvtstoa(qup->dqblk.dqb_btime));
621 fprintf(fd, "file grace period: %s\n",
622 cvtstoa(qup->dqblk.dqb_itime));
623 }
624 fclose(fd);
625 return (1);
626 }
627
628 /*
629 * Merge changes of grace times in an ASCII file into a quotause list.
630 */
631 int
readtimes(struct quotause * quplist,char * inname)632 readtimes(struct quotause *quplist, char *inname)
633 {
634 struct quotause *qup;
635 FILE *fd;
636 int cnt;
637 char *cp;
638 time_t itime, btime, iseconds, bseconds;
639 long l_itime, l_btime;
640 char *fsp, bunits[10], iunits[10], line1[BUFSIZ];
641
642 fd = fopen(inname, "r");
643 if (fd == NULL) {
644 warnx("can't re-read temp file!!");
645 return (0);
646 }
647 /*
648 * Discard two title lines, then read lines to process.
649 */
650 fgets(line1, sizeof(line1), fd);
651 fgets(line1, sizeof(line1), fd);
652 while (fgets(line1, sizeof(line1), fd) != NULL) {
653 if ((fsp = strtok(line1, " \t:")) == NULL) {
654 warnx("%s: bad format", line1);
655 return (0);
656 }
657 if ((cp = strtok(NULL, "\n")) == NULL) {
658 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
659 return (0);
660 }
661 cnt = sscanf(cp,
662 " block grace period: %ld %s file grace period: %ld %s",
663 &l_btime, bunits, &l_itime, iunits);
664 if (cnt != 4) {
665 warnx("%s:%s: bad format", fsp, cp);
666 return (0);
667 }
668 btime = l_btime;
669 itime = l_itime;
670 if (cvtatos(btime, bunits, &bseconds) == 0)
671 return (0);
672 if (cvtatos(itime, iunits, &iseconds) == 0)
673 return (0);
674 for (qup = quplist; qup; qup = qup->next) {
675 if (strcmp(fsp, qup->fsname))
676 continue;
677 qup->dqblk.dqb_btime = bseconds;
678 qup->dqblk.dqb_itime = iseconds;
679 qup->flags |= FOUND;
680 break;
681 }
682 }
683 fclose(fd);
684 /*
685 * reset default grace periods for any filesystems
686 * that have not been found.
687 */
688 for (qup = quplist; qup; qup = qup->next) {
689 if (qup->flags & FOUND) {
690 qup->flags &= ~FOUND;
691 continue;
692 }
693 qup->dqblk.dqb_btime = 0;
694 qup->dqblk.dqb_itime = 0;
695 }
696 return (1);
697 }
698
699 /*
700 * Convert seconds to ASCII times.
701 */
702 char *
cvtstoa(time_t secs)703 cvtstoa(time_t secs)
704 {
705 static char buf[20];
706
707 if (secs % (24 * 60 * 60) == 0) {
708 secs /= 24 * 60 * 60;
709 sprintf(buf, "%ju day%s", (uintmax_t)secs,
710 secs == 1 ? "" : "s");
711 } else if (secs % (60 * 60) == 0) {
712 secs /= 60 * 60;
713 sprintf(buf, "%ju hour%s", (uintmax_t)secs,
714 secs == 1 ? "" : "s");
715 } else if (secs % 60 == 0) {
716 secs /= 60;
717 sprintf(buf, "%ju minute%s", (uintmax_t)secs,
718 secs == 1 ? "" : "s");
719 } else
720 sprintf(buf, "%ju second%s", (uintmax_t)secs,
721 secs == 1 ? "" : "s");
722 return (buf);
723 }
724
725 /*
726 * Convert ASCII input times to seconds.
727 */
728 int
cvtatos(time_t period,char * units,time_t * seconds)729 cvtatos(time_t period, char *units, time_t *seconds)
730 {
731
732 if (bcmp(units, "second", 6) == 0)
733 *seconds = period;
734 else if (bcmp(units, "minute", 6) == 0)
735 *seconds = period * 60;
736 else if (bcmp(units, "hour", 4) == 0)
737 *seconds = period * 60 * 60;
738 else if (bcmp(units, "day", 3) == 0)
739 *seconds = period * 24 * 60 * 60;
740 else {
741 printf("%s: bad units, specify %s\n", units,
742 "days, hours, minutes, or seconds");
743 return (0);
744 }
745 return (1);
746 }
747
748 /*
749 * Free a list of quotause structures.
750 */
751 void
freeprivs(struct quotause * quplist)752 freeprivs(struct quotause *quplist)
753 {
754 struct quotause *qup, *nextqup;
755
756 for (qup = quplist; qup; qup = nextqup) {
757 nextqup = qup->next;
758 free(qup);
759 }
760 }
761
762 /*
763 * Check whether a string is completely composed of digits.
764 */
765 int
alldigits(const char * s)766 alldigits(const char *s)
767 {
768 int c;
769
770 c = *s++;
771 do {
772 if (!isdigit(c))
773 return (0);
774 } while ((c = *s++));
775 return (1);
776 }
777
778 /*
779 * Check to see if a particular quota is to be enabled.
780 */
781 int
hasquota(struct fstab * fs,int type,char ** qfnamep)782 hasquota(struct fstab *fs, int type, char **qfnamep)
783 {
784 char *opt;
785 char *cp;
786 static char initname, usrname[100], grpname[100];
787 static char buf[BUFSIZ];
788
789 if (!initname) {
790 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname);
791 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname);
792 initname = 1;
793 }
794 strcpy(buf, fs->fs_mntops);
795 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
796 if ((cp = strchr(opt, '=')))
797 *cp++ = '\0';
798 if (type == USRQUOTA && strcmp(opt, usrname) == 0)
799 break;
800 if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
801 break;
802 }
803 if (!opt)
804 return (0);
805 if (cp) {
806 *qfnamep = cp;
807 return (1);
808 }
809 sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]);
810 *qfnamep = buf;
811 return (1);
812 }
813