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 * 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.
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
36 * @(#) Copyright (c) 1980, 1990, 1993 The Regents of the University of California. All rights reserved.
37 * @(#)edquota.c 8.1 (Berkeley) 6/6/93
38 * $FreeBSD: src/usr.sbin/edquota/edquota.c,v 1.9.2.6 2002/10/31 22:38:43 iedowse Exp $
39 * $DragonFly: src/usr.sbin/edquota/edquota.c,v 1.8 2006/04/03 01:58:49 dillon Exp $
45 #include <sys/param.h>
49 #include <vfs/ufs/quota.h>
61 #include "pathnames.h"
63 const char *qfname = QUOTAFILENAME;
64 const char *qfextension[] = INITQFNAMES;
65 const char *quotagroup = QUOTAGROUP;
66 char tmpfil[] = _PATH_TMP;
69 struct quotause *next;
71 struct ufs_dqblk dqblk;
72 char fsname[MAXPATHLEN + 1];
73 char qfname[1]; /* actually longer */
77 int alldigits(const char *s);
78 int cvtatos(time_t, char *, time_t *);
79 char *cvtstoa(time_t);
81 void freeprivs(struct quotause *);
82 int getentry(const char *, int);
83 struct quotause *getprivs(long, int, char *);
84 int hasquota(struct fstab *, int, char **);
85 void putprivs(long, int, struct quotause *);
86 int readprivs(struct quotause *, char *);
87 int readtimes(struct quotause *, char *);
88 static void usage(void);
89 int writetimes(struct quotause *, int, int);
90 int writeprivs(struct quotause *, int, char *, int);
93 main(int argc, char **argv)
95 struct quotause *qup, *protoprivs, *curprivs;
98 int i, quotatype, range, tmpfd;
99 uid_t startuid, enduid;
101 char *protoname, *cp, *oldoptarg, ch;
102 int eflag = 0, tflag = 0, pflag = 0;
104 char buf[MAXLOGNAME];
109 errx(1, "permission denied");
110 quotatype = USRQUOTA;
112 while ((ch = getopt(argc, argv, "ugtf:p:e:")) != -1) {
122 quotatype = GRPQUOTA;
125 quotatype = USRQUOTA;
131 if ((qup = malloc(sizeof(*qup))) == NULL)
132 errx(2, "out of memory");
133 bzero(qup, sizeof(*qup));
136 for (cp = optarg; (cp = strsep(&optarg, ":")) != NULL;
143 strlcpy(qup->fsname, cp,
144 sizeof(qup->fsname));
147 limp = &qup->dqblk.dqb_bsoftlimit;
150 limp = &qup->dqblk.dqb_bhardlimit;
153 limp = &qup->dqblk.dqb_isoftlimit;
156 limp = &qup->dqblk.dqb_ihardlimit;
159 warnx("incorrect quota specification: "
162 break; /* XXX: report an error */
165 lim = strtoll(cp, NULL, 10);
166 if (lim < 0 || lim > UINT_MAX)
167 errx(1, "invalid limit value: "
169 *limp = (u_int32_t)lim;
172 qup->dqblk.dqb_bsoftlimit =
173 btodb((off_t)qup->dqblk.dqb_bsoftlimit * 1024);
174 qup->dqblk.dqb_bhardlimit =
175 btodb((off_t)qup->dqblk.dqb_bhardlimit * 1024);
176 if (protoprivs == NULL) {
177 protoprivs = curprivs = qup;
179 curprivs->next = qup;
192 if (protoprivs == NULL) {
193 if ((protoid = getentry(protoname, quotatype)) == -1)
195 protoprivs = getprivs(protoid, quotatype, fspath);
196 for (qup = protoprivs; qup; qup = qup->next) {
197 qup->dqblk.dqb_btime = 0;
198 qup->dqblk.dqb_itime = 0;
201 for (; argc-- > 0; argv++) {
202 if (strspn(*argv, "0123456789-") == strlen(*argv) &&
203 (cp = strchr(*argv, '-')) != NULL) {
205 startuid = atoi(*argv);
207 if (enduid < startuid)
209 "ending uid (%d) must be >= starting uid (%d) when using uid ranges",
213 startuid = enduid = 0;
216 for ( ; startuid <= enduid; startuid++) {
218 snprintf(buf, sizeof(buf), "%d",
221 snprintf(buf, sizeof(buf), "%s",
223 if ((id = getentry(buf, quotatype)) < 0)
226 for (qup = protoprivs; qup;
228 curprivs = getprivs(id,
229 quotatype, qup->fsname);
230 if (curprivs == NULL)
238 putprivs(id, quotatype, protoprivs);
243 tmpfd = mkstemp(tmpfil);
244 fchown(tmpfd, getuid(), getgid());
246 protoprivs = getprivs(0, quotatype, fspath);
247 if (writetimes(protoprivs, tmpfd, quotatype) == 0)
249 if (editit(tmpfil) && readtimes(protoprivs, tmpfil))
250 putprivs(0, quotatype, protoprivs);
251 freeprivs(protoprivs);
256 for ( ; argc > 0; argc--, argv++) {
257 if ((id = getentry(*argv, quotatype)) == -1)
259 curprivs = getprivs(id, quotatype, fspath);
260 if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0)
262 if (editit(tmpfil) && readprivs(curprivs, tmpfil))
263 putprivs(id, quotatype, curprivs);
274 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
275 "usage: edquota [-u] [-f fspath] [-p username] username ...",
276 " edquota [-u] -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]",
278 " edquota -g [-f fspath] [-p groupname] groupname ...",
279 " edquota -g -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]",
281 " edquota [-u] -t [-f fspath]",
282 " edquota -g -t [-f fspath]");
287 * This routine converts a name for a particular quota type to
288 * an identifier. This routine must agree with the kernel routine
289 * getinoquota as to the interpretation of quota types.
292 getentry(const char *name, int quotatype)
301 if ((pw = getpwnam(name)))
303 warnx("%s: no such user", name);
306 if ((gr = getgrnam(name)))
308 warnx("%s: no such group", name);
311 warnx("%d: unknown quota type", quotatype);
319 * Collect the requested quota information.
322 getprivs(long id, int quotatype, char *fspath)
325 struct quotause *qup, *quptail;
326 struct quotause *quphead;
327 int qcmd, qupsize, fd;
329 static int warned = 0;
333 qcmd = QCMD(Q_GETQUOTA, quotatype);
334 while ((fs = getfsent())) {
335 if (fspath && *fspath && strcmp(fspath, fs->fs_spec) &&
336 strcmp(fspath, fs->fs_file))
338 if (strcmp(fs->fs_vfstype, "ufs"))
340 if (!hasquota(fs, quotatype, &qfpathname))
342 qupsize = sizeof(*qup) + strlen(qfpathname);
343 if ((qup = (struct quotause *)malloc(qupsize)) == NULL)
344 errx(2, "out of memory");
345 if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) {
346 if (errno == EOPNOTSUPP && !warned) {
348 warnx("warning: quotas are not compiled into this kernel");
351 if ((fd = open(qfpathname, O_RDONLY)) < 0) {
352 fd = open(qfpathname, O_RDWR|O_CREAT, 0640);
353 if (fd < 0 && errno != ENOENT) {
354 warn("%s", qfpathname);
358 warnx("creating quota file %s", qfpathname);
361 getentry(quotagroup, GRPQUOTA));
364 lseek(fd, (long)(id * sizeof(struct ufs_dqblk)), L_SET);
365 switch (read(fd, &qup->dqblk, sizeof(struct ufs_dqblk))) {
368 * Convert implicit 0 quota (EOF)
369 * into an explicit one (zero'ed dqblk)
371 bzero((caddr_t)&qup->dqblk,
372 sizeof(struct ufs_dqblk));
375 case sizeof(struct ufs_dqblk): /* OK */
379 warn("read error in %s", qfpathname);
386 strcpy(qup->qfname, qfpathname);
387 strcpy(qup->fsname, fs->fs_file);
400 * Store the requested quota information.
403 putprivs(long id, int quotatype, struct quotause *quplist)
405 struct quotause *qup;
408 qcmd = QCMD(Q_SETQUOTA, quotatype);
409 for (qup = quplist; qup; qup = qup->next) {
410 if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0)
412 if ((fd = open(qup->qfname, O_WRONLY)) < 0) {
413 warn("%s", qup->qfname);
415 lseek(fd, (long)id * (long)sizeof(struct ufs_dqblk), 0);
416 if (write(fd, &qup->dqblk, sizeof(struct ufs_dqblk)) !=
417 sizeof(struct ufs_dqblk)) {
418 warn("%s", qup->qfname);
426 * Take a list of priviledges and get it edited.
434 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
436 if ((pid = fork()) < 0) {
438 if (errno == EPROCLIM) {
439 warnx("you have too many processes");
442 if (errno == EAGAIN) {
455 if ((ed = getenv("EDITOR")) == NULL)
457 execlp(ed, ed, tmpf, NULL);
460 waitpid(pid, &status, 0);
462 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
468 * Convert a quotause list to an ASCII file.
471 writeprivs(struct quotause *quplist, int outfd, char *name, int quotatype)
473 struct quotause *qup;
477 lseek(outfd, 0, L_SET);
478 if ((fd = fdopen(dup(outfd), "w")) == NULL)
479 err(1, "%s", tmpfil);
480 fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name);
481 for (qup = quplist; qup; qup = qup->next) {
482 fprintf(fd, "%s: %s %lu, limits (soft = %lu, hard = %lu)\n",
483 qup->fsname, "kbytes in use:",
484 (unsigned long)(dbtob(qup->dqblk.dqb_curblocks) / 1024),
485 (unsigned long)(dbtob(qup->dqblk.dqb_bsoftlimit) / 1024),
486 (unsigned long)(dbtob(qup->dqblk.dqb_bhardlimit) / 1024));
487 fprintf(fd, "%s %lu, limits (soft = %lu, hard = %lu)\n",
489 (unsigned long)qup->dqblk.dqb_curinodes,
490 (unsigned long)qup->dqblk.dqb_isoftlimit,
491 (unsigned long)qup->dqblk.dqb_ihardlimit);
498 * Merge changes to an ASCII file into a quotause list.
501 readprivs(struct quotause *quplist, char *inname)
503 struct quotause *qup;
505 unsigned long bhardlimit, bsoftlimit, curblocks;
506 unsigned long ihardlimit, isoftlimit, curinodes;
509 struct ufs_dqblk dqblk;
510 char *fsp, line1[BUFSIZ], line2[BUFSIZ];
512 fd = fopen(inname, "r");
514 warnx("can't re-read temp file!!");
518 * Discard title line, then read pairs of lines to process.
520 fgets(line1, sizeof(line1), fd);
521 while (fgets(line1, sizeof(line1), fd) != NULL &&
522 fgets(line2, sizeof(line2), fd) != NULL) {
523 if ((fsp = strtok(line1, " \t:")) == NULL) {
524 warnx("%s: bad format", line1);
527 if ((cp = strtok(NULL, "\n")) == NULL) {
528 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
532 " kbytes in use: %lu, limits (soft = %lu, hard = %lu)",
533 &curblocks, &bsoftlimit, &bhardlimit);
535 warnx("%s:%s: bad format", fsp, cp);
538 dqblk.dqb_curblocks = btodb((off_t)curblocks * 1024);
539 dqblk.dqb_bsoftlimit = btodb((off_t)bsoftlimit * 1024);
540 dqblk.dqb_bhardlimit = btodb((off_t)bhardlimit * 1024);
541 if ((cp = strtok(line2, "\n")) == NULL) {
542 warnx("%s: %s: bad format", fsp, line2);
546 "\tinodes in use: %lu, limits (soft = %lu, hard = %lu)",
547 &curinodes, &isoftlimit, &ihardlimit);
549 warnx("%s: %s: bad format", fsp, line2);
552 dqblk.dqb_curinodes = curinodes;
553 dqblk.dqb_isoftlimit = isoftlimit;
554 dqblk.dqb_ihardlimit = ihardlimit;
555 for (qup = quplist; qup; qup = qup->next) {
556 if (strcmp(fsp, qup->fsname))
559 * Cause time limit to be reset when the quota
560 * is next used if previously had no soft limit
561 * or were under it, but now have a soft limit
564 if (dqblk.dqb_bsoftlimit &&
565 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit &&
566 (qup->dqblk.dqb_bsoftlimit == 0 ||
567 qup->dqblk.dqb_curblocks <
568 qup->dqblk.dqb_bsoftlimit))
569 qup->dqblk.dqb_btime = 0;
570 if (dqblk.dqb_isoftlimit &&
571 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit &&
572 (qup->dqblk.dqb_isoftlimit == 0 ||
573 qup->dqblk.dqb_curinodes <
574 qup->dqblk.dqb_isoftlimit))
575 qup->dqblk.dqb_itime = 0;
576 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit;
577 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit;
578 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit;
579 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit;
581 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks &&
582 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes)
584 warnx("%s: cannot change current allocation", fsp);
590 * Disable quotas for any filesystems that have not been found.
592 for (qup = quplist; qup; qup = qup->next) {
593 if (qup->flags & FOUND) {
594 qup->flags &= ~FOUND;
597 qup->dqblk.dqb_bsoftlimit = 0;
598 qup->dqblk.dqb_bhardlimit = 0;
599 qup->dqblk.dqb_isoftlimit = 0;
600 qup->dqblk.dqb_ihardlimit = 0;
606 * Convert a quotause list to an ASCII file of grace times.
609 writetimes(struct quotause *quplist, int outfd, int quotatype)
611 struct quotause *qup;
615 lseek(outfd, 0, L_SET);
616 if ((fd = fdopen(dup(outfd), "w")) == NULL)
617 err(1, "%s", tmpfil);
618 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n");
619 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n",
620 qfextension[quotatype]);
621 for (qup = quplist; qup; qup = qup->next) {
622 fprintf(fd, "%s: block grace period: %s, ",
623 qup->fsname, cvtstoa(qup->dqblk.dqb_btime));
624 fprintf(fd, "file grace period: %s\n",
625 cvtstoa(qup->dqblk.dqb_itime));
632 * Merge changes of grace times in an ASCII file into a quotause list.
635 readtimes(struct quotause *quplist, char *inname)
637 struct quotause *qup;
641 time_t itime, btime, iseconds, bseconds;
642 long l_itime, l_btime;
643 char *fsp, bunits[10], iunits[10], line1[BUFSIZ];
645 fd = fopen(inname, "r");
647 warnx("can't re-read temp file!!");
651 * Discard two title lines, then read lines to process.
653 fgets(line1, sizeof(line1), fd);
654 fgets(line1, sizeof(line1), fd);
655 while (fgets(line1, sizeof(line1), fd) != NULL) {
656 if ((fsp = strtok(line1, " \t:")) == NULL) {
657 warnx("%s: bad format", line1);
660 if ((cp = strtok(NULL, "\n")) == NULL) {
661 warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
665 " block grace period: %ld %s file grace period: %ld %s",
666 &l_btime, bunits, &l_itime, iunits);
668 warnx("%s:%s: bad format", fsp, cp);
673 if (cvtatos(btime, bunits, &bseconds) == 0)
675 if (cvtatos(itime, iunits, &iseconds) == 0)
677 for (qup = quplist; qup; qup = qup->next) {
678 if (strcmp(fsp, qup->fsname))
680 qup->dqblk.dqb_btime = bseconds;
681 qup->dqblk.dqb_itime = iseconds;
688 * reset default grace periods for any filesystems
689 * that have not been found.
691 for (qup = quplist; qup; qup = qup->next) {
692 if (qup->flags & FOUND) {
693 qup->flags &= ~FOUND;
696 qup->dqblk.dqb_btime = 0;
697 qup->dqblk.dqb_itime = 0;
703 * Convert seconds to ASCII times.
710 if (secs % (24 * 60 * 60) == 0) {
711 secs /= 24 * 60 * 60;
712 sprintf(buf, "%ld day%s", (long)secs, secs == 1 ? "" : "s");
713 } else if (secs % (60 * 60) == 0) {
715 sprintf(buf, "%ld hour%s", (long)secs, secs == 1 ? "" : "s");
716 } else if (secs % 60 == 0) {
718 sprintf(buf, "%ld minute%s", (long)secs, secs == 1 ? "" : "s");
720 sprintf(buf, "%ld second%s", (long)secs, secs == 1 ? "" : "s");
725 * Convert ASCII input times to seconds.
728 cvtatos(time_t period, char *units, time_t *seconds)
731 if (bcmp(units, "second", 6) == 0)
733 else if (bcmp(units, "minute", 6) == 0)
734 *seconds = period * 60;
735 else if (bcmp(units, "hour", 4) == 0)
736 *seconds = period * 60 * 60;
737 else if (bcmp(units, "day", 3) == 0)
738 *seconds = period * 24 * 60 * 60;
740 printf("%s: bad units, specify %s\n", units,
741 "days, hours, minutes, or seconds");
748 * Free a list of quotause structures.
751 freeprivs(struct quotause *quplist)
753 struct quotause *qup, *nextqup;
755 for (qup = quplist; qup; qup = nextqup) {
762 * Check whether a string is completely composed of digits.
765 alldigits(const char *s)
773 } while ((c = *s++));
778 * Check to see if a particular quota is to be enabled.
781 hasquota(struct fstab *fs, int type, char **qfnamep)
785 static char initname, usrname[100], grpname[100];
786 static char buf[BUFSIZ];
789 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname);
790 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname);
793 strcpy(buf, fs->fs_mntops);
794 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
795 if ((cp = strchr(opt, '=')))
797 if (type == USRQUOTA && strcmp(opt, usrname) == 0)
799 if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
808 sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]);