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(name, quotatype)
313 if ((pw = getpwnam(name)))
315 warnx("%s: no such user", name);
318 if ((gr = getgrnam(name)))
320 warnx("%s: no such group", name);
323 warnx("%d: unknown quota type", quotatype);
331 * Collect the requested quota information.
334 getprivs(id, quotatype, fspath)
339 register struct fstab *fs;
340 register struct quotause *qup, *quptail;
341 struct quotause *quphead;
342 int qcmd, qupsize, fd;
344 static int warned = 0;
347 quphead = quptail = NULL;
348 qcmd = QCMD(Q_GETQUOTA, quotatype);
349 while ((fs = getfsent())) {
350 if (fspath && *fspath && strcmp(fspath, fs->fs_spec) &&
351 strcmp(fspath, fs->fs_file))
353 if (strcmp(fs->fs_vfstype, "ufs"))
355 if (!hasquota(fs, quotatype, &qfpathname))
357 qupsize = sizeof(*qup) + strlen(qfpathname);
358 if ((qup = (struct quotause *)malloc(qupsize)) == NULL)
359 errx(2, "out of memory");
360 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) {
361 if (errno == EOPNOTSUPP && !warned) {
363 warnx("warning: quotas are not compiled into this kernel");
366 if ((fd = open(qfpathname, O_RDONLY)) < 0) {
367 fd = open(qfpathname, O_RDWR|O_CREAT, 0640);
368 if (fd < 0 && errno != ENOENT) {
369 warn("%s", qfpathname);
373 warnx("creating quota file %s", qfpathname);
375 (void) fchown(fd, getuid(),
376 getentry(quotagroup, GRPQUOTA));
377 (void) fchmod(fd, 0640);
379 if (lseek(fd, (off_t)id * sizeof(struct dqblk),
381 warn("seek error on %s", qfpathname);
386 switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) {
389 * Convert implicit 0 quota (EOF)
390 * into an explicit one (zero'ed dqblk)
392 bzero((caddr_t)&qup->dqblk,
393 sizeof(struct dqblk));
396 case sizeof(struct dqblk): /* OK */
400 warn("read error in %s", qfpathname);
407 strcpy(qup->qfname, qfpathname);
408 strcpy(qup->fsname, fs->fs_file);
421 * Store the requested quota information.
424 putprivs(id, quotatype, quplist)
427 struct quotause *quplist;
429 register struct quotause *qup;
433 qcmd = QCMD(Q_SETQUOTA, quotatype);
434 for (qup = quplist; qup; qup = qup->next) {
435 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0)
437 if ((fd = open(qup->qfname, O_RDWR)) < 0) {
438 warn("%s", qup->qfname);
441 if (lseek(fd, (off_t)id * sizeof(struct dqblk), L_SET) < 0) {
442 warn("seek error on %s", qup->qfname);
446 switch (read(fd, &dqbuf, sizeof(struct dqblk))) {
449 * Convert implicit 0 quota (EOF)
450 * into an explicit one (zero'ed dqblk)
452 bzero(&dqbuf, sizeof(struct dqblk));
455 case sizeof(struct dqblk): /* OK */
459 warn("read error in %s", qup->qfname);
464 * Reset time limit if have a soft limit and were
465 * previously under it, but are now over it
466 * or if there previously was no soft limit, but
467 * now have one and are over it.
469 if (dqbuf.dqb_bsoftlimit && id != 0 &&
470 dqbuf.dqb_curblocks < dqbuf.dqb_bsoftlimit &&
471 dqbuf.dqb_curblocks >= qup->dqblk.dqb_bsoftlimit)
472 qup->dqblk.dqb_btime = 0;
473 if (dqbuf.dqb_bsoftlimit == 0 && id != 0 &&
474 dqbuf.dqb_curblocks >= qup->dqblk.dqb_bsoftlimit)
475 qup->dqblk.dqb_btime = 0;
476 if (dqbuf.dqb_isoftlimit && id != 0 &&
477 dqbuf.dqb_curinodes < dqbuf.dqb_isoftlimit &&
478 dqbuf.dqb_curinodes >= qup->dqblk.dqb_isoftlimit)
479 qup->dqblk.dqb_itime = 0;
480 if (dqbuf.dqb_isoftlimit == 0 && id !=0 &&
481 dqbuf.dqb_curinodes >= qup->dqblk.dqb_isoftlimit)
482 qup->dqblk.dqb_itime = 0;
483 qup->dqblk.dqb_curinodes = dqbuf.dqb_curinodes;
484 qup->dqblk.dqb_curblocks = dqbuf.dqb_curblocks;
485 if (lseek(fd, (off_t)id * sizeof(struct dqblk), L_SET) < 0) {
486 warn("seek error on %s", qup->qfname);
490 if (write(fd, &qup->dqblk, sizeof (struct dqblk)) !=
491 sizeof (struct dqblk)) {
492 warn("%s", qup->qfname);
499 * Take a list of priviledges and get it edited.
508 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
510 if ((pid = fork()) < 0) {
512 if (errno == EPROCLIM) {
513 warnx("you have too many processes");
516 if (errno == EAGAIN) {
524 register const char *ed;
529 if ((ed = getenv("EDITOR")) == (char *)0)
531 execlp(ed, ed, tmpf, (char *)0);
534 waitpid(pid, &status, 0);
536 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
542 * Convert a quotause list to an ASCII file.
545 writeprivs(quplist, outfd, name, quotatype)
546 struct quotause *quplist;
551 register struct quotause *qup;
555 lseek(outfd, 0, L_SET);
556 if ((fd = fdopen(dup(outfd), "w")) == NULL)
557 err(1, "%s", tmpfil);
558 fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name);
559 for (qup = quplist; qup; qup = qup->next) {
560 fprintf(fd, "%s: %s %lu, limits (soft = %lu, hard = %lu)\n",
561 qup->fsname, "kbytes in use:",
562 (unsigned long)(dbtob(qup->dqblk.dqb_curblocks) / 1024),
563 (unsigned long)(dbtob(qup->dqblk.dqb_bsoftlimit) / 1024),
564 (unsigned long)(dbtob(qup->dqblk.dqb_bhardlimit) / 1024));
565 fprintf(fd, "%s %lu, limits (soft = %lu, hard = %lu)\n",
567 (unsigned long)qup->dqblk.dqb_curinodes,
568 (unsigned long)qup->dqblk.dqb_isoftlimit,
569 (unsigned long)qup->dqblk.dqb_ihardlimit);
576 * Merge changes to an ASCII file into a quotause list.
579 readprivs(quplist, inname)
580 struct quotause *quplist;
583 register struct quotause *qup;
585 unsigned long bhardlimit, bsoftlimit, curblocks;
586 unsigned long ihardlimit, isoftlimit, curinodes;
590 char *fsp, line1[BUFSIZ], line2[BUFSIZ];
592 fd = fopen(inname, "r");
594 warnx("can't re-read temp file!!");
598 * Discard title line, then read pairs of lines to process.
600 (void) fgets(line1, sizeof (line1), fd);
601 while (fgets(line1, sizeof (line1), fd) != NULL &&
602 fgets(line2, sizeof (line2), fd) != NULL) {
603 if ((fsp = strtok(line1, " \t:")) == NULL) {
604 warnx("%s: bad format", line1);
607 if ((cp = strtok((char *)0, "\n")) == NULL) {
608 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
612 " kbytes in use: %lu, limits (soft = %lu, hard = %lu)",
613 &curblocks, &bsoftlimit, &bhardlimit);
615 warnx("%s:%s: bad format", fsp, cp);
618 dqblk.dqb_curblocks = btodb((off_t)curblocks * 1024);
619 dqblk.dqb_bsoftlimit = btodb((off_t)bsoftlimit * 1024);
620 dqblk.dqb_bhardlimit = btodb((off_t)bhardlimit * 1024);
621 if ((cp = strtok(line2, "\n")) == NULL) {
622 warnx("%s: %s: bad format", fsp, line2);
626 "\tinodes in use: %lu, limits (soft = %lu, hard = %lu)",
627 &curinodes, &isoftlimit, &ihardlimit);
629 warnx("%s: %s: bad format", fsp, line2);
632 dqblk.dqb_curinodes = curinodes;
633 dqblk.dqb_isoftlimit = isoftlimit;
634 dqblk.dqb_ihardlimit = ihardlimit;
635 for (qup = quplist; qup; qup = qup->next) {
636 if (strcmp(fsp, qup->fsname))
639 * Cause time limit to be reset when the quota
640 * is next used if previously had no soft limit
641 * or were under it, but now have a soft limit
644 if (dqblk.dqb_bsoftlimit &&
645 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit &&
646 (qup->dqblk.dqb_bsoftlimit == 0 ||
647 qup->dqblk.dqb_curblocks <
648 qup->dqblk.dqb_bsoftlimit))
649 qup->dqblk.dqb_btime = 0;
650 if (dqblk.dqb_isoftlimit &&
651 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit &&
652 (qup->dqblk.dqb_isoftlimit == 0 ||
653 qup->dqblk.dqb_curinodes <
654 qup->dqblk.dqb_isoftlimit))
655 qup->dqblk.dqb_itime = 0;
656 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit;
657 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit;
658 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit;
659 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit;
661 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks &&
662 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes)
664 warnx("%s: cannot change current allocation", fsp);
670 * Disable quotas for any filesystems that have not been found.
672 for (qup = quplist; qup; qup = qup->next) {
673 if (qup->flags & FOUND) {
674 qup->flags &= ~FOUND;
677 qup->dqblk.dqb_bsoftlimit = 0;
678 qup->dqblk.dqb_bhardlimit = 0;
679 qup->dqblk.dqb_isoftlimit = 0;
680 qup->dqblk.dqb_ihardlimit = 0;
686 * Convert a quotause list to an ASCII file of grace times.
689 writetimes(quplist, outfd, quotatype)
690 struct quotause *quplist;
694 register struct quotause *qup;
698 lseek(outfd, 0, L_SET);
699 if ((fd = fdopen(dup(outfd), "w")) == NULL)
700 err(1, "%s", tmpfil);
701 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n");
702 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n",
703 qfextension[quotatype]);
704 for (qup = quplist; qup; qup = qup->next) {
705 fprintf(fd, "%s: block grace period: %s, ",
706 qup->fsname, cvtstoa(qup->dqblk.dqb_btime));
707 fprintf(fd, "file grace period: %s\n",
708 cvtstoa(qup->dqblk.dqb_itime));
715 * Merge changes of grace times in an ASCII file into a quotause list.
718 readtimes(quplist, inname)
719 struct quotause *quplist;
722 register struct quotause *qup;
726 time_t itime, btime, iseconds, bseconds;
727 long l_itime, l_btime;
728 char *fsp, bunits[10], iunits[10], line1[BUFSIZ];
730 fd = fopen(inname, "r");
732 warnx("can't re-read temp file!!");
736 * Discard two title lines, then read lines to process.
738 (void) fgets(line1, sizeof (line1), fd);
739 (void) fgets(line1, sizeof (line1), fd);
740 while (fgets(line1, sizeof (line1), fd) != NULL) {
741 if ((fsp = strtok(line1, " \t:")) == NULL) {
742 warnx("%s: bad format", line1);
745 if ((cp = strtok((char *)0, "\n")) == NULL) {
746 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
750 " block grace period: %ld %s file grace period: %ld %s",
751 &l_btime, bunits, &l_itime, iunits);
753 warnx("%s:%s: bad format", fsp, cp);
758 if (cvtatos(btime, bunits, &bseconds) == 0)
760 if (cvtatos(itime, iunits, &iseconds) == 0)
762 for (qup = quplist; qup; qup = qup->next) {
763 if (strcmp(fsp, qup->fsname))
765 qup->dqblk.dqb_btime = bseconds;
766 qup->dqblk.dqb_itime = iseconds;
773 * reset default grace periods for any filesystems
774 * that have not been found.
776 for (qup = quplist; qup; qup = qup->next) {
777 if (qup->flags & FOUND) {
778 qup->flags &= ~FOUND;
781 qup->dqblk.dqb_btime = 0;
782 qup->dqblk.dqb_itime = 0;
788 * Convert seconds to ASCII times.
796 if (secs % (24 * 60 * 60) == 0) {
797 secs /= 24 * 60 * 60;
798 sprintf(buf, "%ld day%s", (long)secs, secs == 1 ? "" : "s");
799 } else if (secs % (60 * 60) == 0) {
801 sprintf(buf, "%ld hour%s", (long)secs, secs == 1 ? "" : "s");
802 } else if (secs % 60 == 0) {
804 sprintf(buf, "%ld minute%s", (long)secs, secs == 1 ? "" : "s");
806 sprintf(buf, "%ld second%s", (long)secs, secs == 1 ? "" : "s");
811 * Convert ASCII input times to seconds.
814 cvtatos(period, units, seconds)
820 if (bcmp(units, "second", 6) == 0)
822 else if (bcmp(units, "minute", 6) == 0)
823 *seconds = period * 60;
824 else if (bcmp(units, "hour", 4) == 0)
825 *seconds = period * 60 * 60;
826 else if (bcmp(units, "day", 3) == 0)
827 *seconds = period * 24 * 60 * 60;
829 printf("%s: bad units, specify %s\n", units,
830 "days, hours, minutes, or seconds");
837 * Free a list of quotause structures.
841 struct quotause *quplist;
843 register struct quotause *qup, *nextqup;
845 for (qup = quplist; qup; qup = nextqup) {
852 * Check whether a string is completely composed of digits.
856 register const char *s;
864 } while ((c = *s++));
869 * Check to see if a particular quota is to be enabled.
872 hasquota(fs, type, qfnamep)
880 static char initname, usrname[100], grpname[100];
881 static char buf[BUFSIZ];
884 (void)snprintf(usrname, sizeof(usrname), "%s%s",
885 qfextension[USRQUOTA], qfname);
886 (void)snprintf(grpname, sizeof(grpname), "%s%s",
887 qfextension[GRPQUOTA], qfname);
890 strcpy(buf, fs->fs_mntops);
891 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
892 if ((cp = index(opt, '=')))
894 if (type == USRQUOTA && strcmp(opt, usrname) == 0)
896 if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
904 (void)snprintf(buf, sizeof(buf), "%s/%s.%s", fs->fs_file,
905 qfname, qfextension[type]);
908 if (statfs(fs->fs_file, &sfb) != 0) {
909 warn("cannot statfs mount point %s", fs->fs_file);
912 if (strcmp(fs->fs_file, sfb.f_mntonname)) {
913 warnx("%s not mounted for %s quotas", fs->fs_file,
914 type == USRQUOTA ? "user" : "group");