2 * Copyright (c) 1980, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Robert Elz at The University of Melbourne.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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 * 4. 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.
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
35 static const char copyright[] =
36 "@(#) Copyright (c) 1980, 1990, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
41 static char sccsid[] = "@(#)edquota.c 8.1 (Berkeley) 6/6/93";
45 #include <sys/cdefs.h>
46 __FBSDID("$FreeBSD$");
52 #include <sys/param.h>
55 #include <sys/mount.h>
57 #include <ufs/ufs/quota.h>
69 #include "pathnames.h"
71 const char *qfname = QUOTAFILENAME;
72 const char *qfextension[] = INITQFNAMES;
73 const char *quotagroup = QUOTAGROUP;
74 char tmpfil[] = _PATH_TMP;
77 struct quotause *next;
80 char fsname[MAXPATHLEN + 1];
81 char qfname[1]; /* actually longer */
85 int alldigits(const char *s);
86 int cvtatos(time_t, char *, time_t *);
87 char *cvtstoa(time_t);
89 void freeprivs(struct quotause *);
90 int getentry(const char *, int);
91 struct quotause *getprivs(long, int, char *);
92 int hasquota(struct fstab *, int, char **);
93 void putprivs(long, int, struct quotause *);
94 int readprivs(struct quotause *, char *);
95 int readtimes(struct quotause *, char *);
96 static void usage(void);
97 int writetimes(struct quotause *, int, int);
98 int writeprivs(struct quotause *, int, char *, int);
101 main(int argc, char *argv[])
103 struct quotause *qup, *protoprivs, *curprivs;
106 int i, quotatype, range, tmpfd;
107 uid_t startuid, enduid;
109 char *protoname, *cp, *oldoptarg;
110 int eflag = 0, tflag = 0, pflag = 0, ch;
112 char buf[MAXLOGNAME];
117 errx(1, "permission denied");
118 quotatype = USRQUOTA;
122 while ((ch = getopt(argc, argv, "ugtf:p:e:")) != -1) {
132 quotatype = GRPQUOTA;
135 quotatype = USRQUOTA;
141 if ((qup = malloc(sizeof(*qup))) == NULL)
142 errx(2, "out of memory");
143 bzero(qup, sizeof(*qup));
146 for (cp = optarg; (cp = strsep(&optarg, ":")) != NULL;
153 strlcpy(qup->fsname, cp,
154 sizeof(qup->fsname));
157 limp = &qup->dqblk.dqb_bsoftlimit;
160 limp = &qup->dqblk.dqb_bhardlimit;
163 limp = &qup->dqblk.dqb_isoftlimit;
166 limp = &qup->dqblk.dqb_ihardlimit;
169 warnx("incorrect quota specification: "
172 break; /* XXX: report an error */
175 lim = strtoll(cp, NULL, 10);
176 if (lim < 0 || lim > UINT_MAX)
177 errx(1, "invalid limit value: "
179 *limp = (u_int32_t)lim;
182 qup->dqblk.dqb_bsoftlimit =
183 btodb((off_t)qup->dqblk.dqb_bsoftlimit * 1024);
184 qup->dqblk.dqb_bhardlimit =
185 btodb((off_t)qup->dqblk.dqb_bhardlimit * 1024);
186 if (protoprivs == NULL) {
187 protoprivs = curprivs = qup;
189 curprivs->next = qup;
202 if (protoprivs == NULL) {
203 if ((protoid = getentry(protoname, quotatype)) == -1)
205 protoprivs = getprivs(protoid, quotatype, fspath);
206 for (qup = protoprivs; qup; qup = qup->next) {
207 qup->dqblk.dqb_btime = 0;
208 qup->dqblk.dqb_itime = 0;
211 for (; argc-- > 0; argv++) {
212 if (strspn(*argv, "0123456789-") == strlen(*argv) &&
213 (cp = strchr(*argv, '-')) != NULL) {
215 startuid = atoi(*argv);
217 if (enduid < startuid)
219 "ending uid (%d) must be >= starting uid (%d) when using uid ranges",
223 startuid = enduid = 0;
226 for ( ; startuid <= enduid; startuid++) {
228 snprintf(buf, sizeof(buf), "%d",
231 snprintf(buf, sizeof(buf), "%s",
233 if ((id = getentry(buf, quotatype)) < 0)
236 for (qup = protoprivs; qup;
238 curprivs = getprivs(id,
239 quotatype, qup->fsname);
240 if (curprivs == NULL)
248 putprivs(id, quotatype, protoprivs);
253 tmpfd = mkstemp(tmpfil);
254 fchown(tmpfd, getuid(), getgid());
256 protoprivs = getprivs(0, quotatype, fspath);
257 if (writetimes(protoprivs, tmpfd, quotatype) == 0)
259 if (editit(tmpfil) && readtimes(protoprivs, tmpfil))
260 putprivs(0L, quotatype, protoprivs);
261 freeprivs(protoprivs);
266 for ( ; argc > 0; argc--, argv++) {
267 if ((id = getentry(*argv, quotatype)) == -1)
269 curprivs = getprivs(id, quotatype, fspath);
270 if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0)
272 if (editit(tmpfil) && readprivs(curprivs, tmpfil))
273 putprivs(id, quotatype, curprivs);
284 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
285 "usage: edquota [-u] [-f fspath] [-p username] username ...",
286 " edquota [-u] -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]",
288 " edquota -g [-f fspath] [-p groupname] groupname ...",
289 " edquota -g -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]",
291 " edquota [-u] -t [-f fspath]",
292 " edquota -g -t [-f fspath]");
297 * This routine converts a name for a particular quota type to
298 * an identifier. This routine must agree with the kernel routine
299 * getinoquota as to the interpretation of quota types.
302 getentry(const char *name, int quotatype)
311 if ((pw = getpwnam(name)))
313 warnx("%s: no such user", name);
316 if ((gr = getgrnam(name)))
318 warnx("%s: no such group", name);
321 warnx("%d: unknown quota type", quotatype);
329 * Collect the requested quota information.
332 getprivs(long id, int quotatype, char *fspath)
335 struct quotause *qup, *quptail;
336 struct quotause *quphead;
337 int qcmd, qupsize, fd;
339 static int warned = 0;
342 quphead = quptail = NULL;
343 qcmd = QCMD(Q_GETQUOTA, quotatype);
344 while ((fs = getfsent())) {
345 if (fspath && *fspath && strcmp(fspath, fs->fs_spec) &&
346 strcmp(fspath, fs->fs_file))
348 if (strcmp(fs->fs_vfstype, "ufs"))
350 if (!hasquota(fs, quotatype, &qfpathname))
352 qupsize = sizeof(*qup) + strlen(qfpathname);
353 if ((qup = (struct quotause *)malloc(qupsize)) == NULL)
354 errx(2, "out of memory");
355 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) {
356 if (errno == EOPNOTSUPP && !warned) {
358 warnx("warning: quotas are not compiled into this kernel");
361 if ((fd = open(qfpathname, O_RDONLY)) < 0) {
362 fd = open(qfpathname, O_RDWR|O_CREAT, 0640);
363 if (fd < 0 && errno != ENOENT) {
364 warn("%s", qfpathname);
368 warnx("creating quota file %s", qfpathname);
370 (void) fchown(fd, getuid(),
371 getentry(quotagroup, GRPQUOTA));
372 (void) fchmod(fd, 0640);
374 if (lseek(fd, (off_t)id * sizeof(struct dqblk),
376 warn("seek error on %s", qfpathname);
381 switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) {
384 * Convert implicit 0 quota (EOF)
385 * into an explicit one (zero'ed dqblk)
387 bzero((caddr_t)&qup->dqblk,
388 sizeof(struct dqblk));
391 case sizeof(struct dqblk): /* OK */
395 warn("read error in %s", qfpathname);
402 strcpy(qup->qfname, qfpathname);
403 strcpy(qup->fsname, fs->fs_file);
416 * Store the requested quota information.
419 putprivs(long id, int quotatype, struct quotause *quplist)
421 struct quotause *qup;
425 qcmd = QCMD(Q_SETQUOTA, quotatype);
426 for (qup = quplist; qup; qup = qup->next) {
427 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0)
429 if ((fd = open(qup->qfname, O_RDWR)) < 0) {
430 warn("%s", qup->qfname);
433 if (lseek(fd, (off_t)id * sizeof(struct dqblk), L_SET) < 0) {
434 warn("seek error on %s", qup->qfname);
438 switch (read(fd, &dqbuf, sizeof(struct dqblk))) {
441 * Convert implicit 0 quota (EOF)
442 * into an explicit one (zero'ed dqblk)
444 bzero(&dqbuf, sizeof(struct dqblk));
447 case sizeof(struct dqblk): /* OK */
451 warn("read error in %s", qup->qfname);
456 * Reset time limit if have a soft limit and were
457 * previously under it, but are now over it
458 * or if there previously was no soft limit, but
459 * now have one and are over it.
461 if (dqbuf.dqb_bsoftlimit && id != 0 &&
462 dqbuf.dqb_curblocks < dqbuf.dqb_bsoftlimit &&
463 dqbuf.dqb_curblocks >= qup->dqblk.dqb_bsoftlimit)
464 qup->dqblk.dqb_btime = 0;
465 if (dqbuf.dqb_bsoftlimit == 0 && id != 0 &&
466 dqbuf.dqb_curblocks >= qup->dqblk.dqb_bsoftlimit)
467 qup->dqblk.dqb_btime = 0;
468 if (dqbuf.dqb_isoftlimit && id != 0 &&
469 dqbuf.dqb_curinodes < dqbuf.dqb_isoftlimit &&
470 dqbuf.dqb_curinodes >= qup->dqblk.dqb_isoftlimit)
471 qup->dqblk.dqb_itime = 0;
472 if (dqbuf.dqb_isoftlimit == 0 && id !=0 &&
473 dqbuf.dqb_curinodes >= qup->dqblk.dqb_isoftlimit)
474 qup->dqblk.dqb_itime = 0;
475 qup->dqblk.dqb_curinodes = dqbuf.dqb_curinodes;
476 qup->dqblk.dqb_curblocks = dqbuf.dqb_curblocks;
477 if (lseek(fd, (off_t)id * sizeof(struct dqblk), L_SET) < 0) {
478 warn("seek error on %s", qup->qfname);
482 if (write(fd, &qup->dqblk, sizeof (struct dqblk)) !=
483 sizeof (struct dqblk)) {
484 warn("%s", qup->qfname);
491 * Take a list of priviledges and get it edited.
499 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
501 if ((pid = fork()) < 0) {
503 if (errno == EPROCLIM) {
504 warnx("you have too many processes");
507 if (errno == EAGAIN) {
520 if ((ed = getenv("EDITOR")) == (char *)0)
522 execlp(ed, ed, tmpf, (char *)0);
525 waitpid(pid, &status, 0);
527 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
533 * Convert a quotause list to an ASCII file.
536 writeprivs(struct quotause *quplist, int outfd, char *name, int quotatype)
538 struct quotause *qup;
542 lseek(outfd, 0, L_SET);
543 if ((fd = fdopen(dup(outfd), "w")) == NULL)
544 err(1, "%s", tmpfil);
545 fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name);
546 for (qup = quplist; qup; qup = qup->next) {
547 fprintf(fd, "%s: %s %lu, limits (soft = %lu, hard = %lu)\n",
548 qup->fsname, "kbytes in use:",
549 (unsigned long)(dbtob(qup->dqblk.dqb_curblocks) / 1024),
550 (unsigned long)(dbtob(qup->dqblk.dqb_bsoftlimit) / 1024),
551 (unsigned long)(dbtob(qup->dqblk.dqb_bhardlimit) / 1024));
552 fprintf(fd, "%s %lu, limits (soft = %lu, hard = %lu)\n",
554 (unsigned long)qup->dqblk.dqb_curinodes,
555 (unsigned long)qup->dqblk.dqb_isoftlimit,
556 (unsigned long)qup->dqblk.dqb_ihardlimit);
563 * Merge changes to an ASCII file into a quotause list.
566 readprivs(struct quotause *quplist, char *inname)
568 struct quotause *qup;
570 unsigned long bhardlimit, bsoftlimit, curblocks;
571 unsigned long ihardlimit, isoftlimit, curinodes;
575 char *fsp, line1[BUFSIZ], line2[BUFSIZ];
577 fd = fopen(inname, "r");
579 warnx("can't re-read temp file!!");
583 * Discard title line, then read pairs of lines to process.
585 (void) fgets(line1, sizeof (line1), fd);
586 while (fgets(line1, sizeof (line1), fd) != NULL &&
587 fgets(line2, sizeof (line2), fd) != NULL) {
588 if ((fsp = strtok(line1, " \t:")) == NULL) {
589 warnx("%s: bad format", line1);
592 if ((cp = strtok((char *)0, "\n")) == NULL) {
593 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
597 " kbytes in use: %lu, limits (soft = %lu, hard = %lu)",
598 &curblocks, &bsoftlimit, &bhardlimit);
600 warnx("%s:%s: bad format", fsp, cp);
603 dqblk.dqb_curblocks = btodb((off_t)curblocks * 1024);
604 dqblk.dqb_bsoftlimit = btodb((off_t)bsoftlimit * 1024);
605 dqblk.dqb_bhardlimit = btodb((off_t)bhardlimit * 1024);
606 if ((cp = strtok(line2, "\n")) == NULL) {
607 warnx("%s: %s: bad format", fsp, line2);
611 "\tinodes in use: %lu, limits (soft = %lu, hard = %lu)",
612 &curinodes, &isoftlimit, &ihardlimit);
614 warnx("%s: %s: bad format", fsp, line2);
617 dqblk.dqb_curinodes = curinodes;
618 dqblk.dqb_isoftlimit = isoftlimit;
619 dqblk.dqb_ihardlimit = ihardlimit;
620 for (qup = quplist; qup; qup = qup->next) {
621 if (strcmp(fsp, qup->fsname))
624 * Cause time limit to be reset when the quota
625 * is next used if previously had no soft limit
626 * or were under it, but now have a soft limit
629 if (dqblk.dqb_bsoftlimit &&
630 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit &&
631 (qup->dqblk.dqb_bsoftlimit == 0 ||
632 qup->dqblk.dqb_curblocks <
633 qup->dqblk.dqb_bsoftlimit))
634 qup->dqblk.dqb_btime = 0;
635 if (dqblk.dqb_isoftlimit &&
636 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit &&
637 (qup->dqblk.dqb_isoftlimit == 0 ||
638 qup->dqblk.dqb_curinodes <
639 qup->dqblk.dqb_isoftlimit))
640 qup->dqblk.dqb_itime = 0;
641 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit;
642 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit;
643 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit;
644 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit;
646 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks &&
647 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes)
649 warnx("%s: cannot change current allocation", fsp);
655 * Disable quotas for any filesystems that have not been found.
657 for (qup = quplist; qup; qup = qup->next) {
658 if (qup->flags & FOUND) {
659 qup->flags &= ~FOUND;
662 qup->dqblk.dqb_bsoftlimit = 0;
663 qup->dqblk.dqb_bhardlimit = 0;
664 qup->dqblk.dqb_isoftlimit = 0;
665 qup->dqblk.dqb_ihardlimit = 0;
671 * Convert a quotause list to an ASCII file of grace times.
674 writetimes(struct quotause *quplist, int outfd, int quotatype)
676 struct quotause *qup;
680 lseek(outfd, 0, L_SET);
681 if ((fd = fdopen(dup(outfd), "w")) == NULL)
682 err(1, "%s", tmpfil);
683 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n");
684 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n",
685 qfextension[quotatype]);
686 for (qup = quplist; qup; qup = qup->next) {
687 fprintf(fd, "%s: block grace period: %s, ",
688 qup->fsname, cvtstoa(qup->dqblk.dqb_btime));
689 fprintf(fd, "file grace period: %s\n",
690 cvtstoa(qup->dqblk.dqb_itime));
697 * Merge changes of grace times in an ASCII file into a quotause list.
700 readtimes(struct quotause *quplist, char *inname)
702 struct quotause *qup;
706 time_t itime, btime, iseconds, bseconds;
707 long l_itime, l_btime;
708 char *fsp, bunits[10], iunits[10], line1[BUFSIZ];
710 fd = fopen(inname, "r");
712 warnx("can't re-read temp file!!");
716 * Discard two title lines, then read lines to process.
718 (void) fgets(line1, sizeof (line1), fd);
719 (void) fgets(line1, sizeof (line1), fd);
720 while (fgets(line1, sizeof (line1), fd) != NULL) {
721 if ((fsp = strtok(line1, " \t:")) == NULL) {
722 warnx("%s: bad format", line1);
725 if ((cp = strtok((char *)0, "\n")) == NULL) {
726 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
730 " block grace period: %ld %s file grace period: %ld %s",
731 &l_btime, bunits, &l_itime, iunits);
733 warnx("%s:%s: bad format", fsp, cp);
738 if (cvtatos(btime, bunits, &bseconds) == 0)
740 if (cvtatos(itime, iunits, &iseconds) == 0)
742 for (qup = quplist; qup; qup = qup->next) {
743 if (strcmp(fsp, qup->fsname))
745 qup->dqblk.dqb_btime = bseconds;
746 qup->dqblk.dqb_itime = iseconds;
753 * reset default grace periods for any filesystems
754 * that have not been found.
756 for (qup = quplist; qup; qup = qup->next) {
757 if (qup->flags & FOUND) {
758 qup->flags &= ~FOUND;
761 qup->dqblk.dqb_btime = 0;
762 qup->dqblk.dqb_itime = 0;
768 * Convert seconds to ASCII times.
775 if (secs % (24 * 60 * 60) == 0) {
776 secs /= 24 * 60 * 60;
777 sprintf(buf, "%ld day%s", (long)secs, secs == 1 ? "" : "s");
778 } else if (secs % (60 * 60) == 0) {
780 sprintf(buf, "%ld hour%s", (long)secs, secs == 1 ? "" : "s");
781 } else if (secs % 60 == 0) {
783 sprintf(buf, "%ld minute%s", (long)secs, secs == 1 ? "" : "s");
785 sprintf(buf, "%ld second%s", (long)secs, secs == 1 ? "" : "s");
790 * Convert ASCII input times to seconds.
793 cvtatos(time_t period, char *units, time_t *seconds)
796 if (bcmp(units, "second", 6) == 0)
798 else if (bcmp(units, "minute", 6) == 0)
799 *seconds = period * 60;
800 else if (bcmp(units, "hour", 4) == 0)
801 *seconds = period * 60 * 60;
802 else if (bcmp(units, "day", 3) == 0)
803 *seconds = period * 24 * 60 * 60;
805 printf("%s: bad units, specify %s\n", units,
806 "days, hours, minutes, or seconds");
813 * Free a list of quotause structures.
816 freeprivs(struct quotause *quplist)
818 struct quotause *qup, *nextqup;
820 for (qup = quplist; qup; qup = nextqup) {
827 * Check whether a string is completely composed of digits.
830 alldigits(const char *s)
838 } while ((c = *s++));
843 * Check to see if a particular quota is to be enabled.
846 hasquota(struct fstab *fs, int type, char **qfnamep)
851 static char initname, usrname[100], grpname[100];
852 static char buf[BUFSIZ];
855 (void)snprintf(usrname, sizeof(usrname), "%s%s",
856 qfextension[USRQUOTA], qfname);
857 (void)snprintf(grpname, sizeof(grpname), "%s%s",
858 qfextension[GRPQUOTA], qfname);
861 strcpy(buf, fs->fs_mntops);
862 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
863 if ((cp = index(opt, '=')))
865 if (type == USRQUOTA && strcmp(opt, usrname) == 0)
867 if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
875 (void)snprintf(buf, sizeof(buf), "%s/%s.%s", fs->fs_file,
876 qfname, qfextension[type]);
879 if (statfs(fs->fs_file, &sfb) != 0) {
880 warn("cannot statfs mount point %s", fs->fs_file);
883 if (strcmp(fs->fs_file, sfb.f_mntonname)) {
884 warnx("%s not mounted for %s quotas", fs->fs_file,
885 type == USRQUOTA ? "user" : "group");