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freebsd-skq/usr.sbin/edquota/edquota.c
Eitan Adler 50e04779c4 Check the return error of set[e][ug]id. While this can never fail in the 
current version of FreeBSD, this isn't guarenteed by the API.
Custom security modules, or future implementations of the setuid and
setgid may fail.

Submitted by:	Erik Cederstrand
Approved by:	cperciva
MFC after:	3 days
2012-10-22 03:07:05 +00:00

962 lines
23 KiB
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/*
* Copyright (c) 1980, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Robert Elz at The University of Melbourne.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if 0
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1980, 1990, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)edquota.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Disk quota editor.
*/
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <sys/mount.h>
#include <sys/wait.h>
#include <ufs/ufs/quota.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fstab.h>
#include <grp.h>
#include <inttypes.h>
#include <libutil.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "pathnames.h"
/* Let's be paranoid about block size */
#if 10 > DEV_BSHIFT
#define dbtokb(db) \
((off_t)(db) >> (10-DEV_BSHIFT))
#elif 10 < DEV_BSHIFT
#define dbtokb(db) \
((off_t)(db) << (DEV_BSHIFT-10))
#else
#define dbtokb(db) (db)
#endif
const char *qfextension[] = INITQFNAMES;
char tmpfil[] = _PATH_TMP;
int hflag;
struct quotause {
struct quotause *next;
struct quotafile *qf;
struct dqblk dqblk;
int flags;
char fsname[MAXPATHLEN + 1];
};
#define FOUND 0x01
int alldigits(const char *s);
int cvtatos(uint64_t, char *, uint64_t *);
char *cvtstoa(uint64_t);
uint64_t cvtblkval(uint64_t, char, const char *);
uint64_t cvtinoval(uint64_t, char, const char *);
int editit(char *);
char *fmthumanvalblks(int64_t);
char *fmthumanvalinos(int64_t);
void freeprivs(struct quotause *);
int getentry(const char *, int);
struct quotause *getprivs(long, int, char *);
void putprivs(long, struct quotause *);
int readprivs(struct quotause *, char *);
int readtimes(struct quotause *, char *);
static void usage(void);
int writetimes(struct quotause *, int, int);
int writeprivs(struct quotause *, int, char *, int);
int
main(int argc, char *argv[])
{
struct quotause *qup, *protoprivs, *curprivs;
long id, protoid;
int i, quotatype, range, tmpfd;
uid_t startuid, enduid;
uint64_t lim;
char *protoname, *cp, *endpt, *oldoptarg;
int eflag = 0, tflag = 0, pflag = 0, ch;
char *fspath = NULL;
char buf[MAXLOGNAME];
if (argc < 2)
usage();
if (getuid())
errx(1, "permission denied");
quotatype = USRQUOTA;
protoprivs = NULL;
curprivs = NULL;
protoname = NULL;
while ((ch = getopt(argc, argv, "ughtf:p:e:")) != -1) {
switch(ch) {
case 'f':
fspath = optarg;
break;
case 'p':
if (eflag) {
warnx("cannot specify both -e and -p");
usage();
/* not reached */
}
protoname = optarg;
pflag++;
break;
case 'g':
quotatype = GRPQUOTA;
break;
case 'h':
hflag++;
break;
case 'u':
quotatype = USRQUOTA;
break;
case 't':
tflag++;
break;
case 'e':
if (pflag) {
warnx("cannot specify both -e and -p");
usage();
/* not reached */
}
if ((qup = calloc(1, sizeof(*qup))) == NULL)
errx(2, "out of memory");
oldoptarg = optarg;
for (i = 0, cp = optarg;
(cp = strsep(&optarg, ":")) != NULL; i++) {
if (cp != oldoptarg)
*(cp - 1) = ':';
if (i > 0 && !isdigit(*cp)) {
warnx("incorrect quota specification: "
"%s", oldoptarg);
usage();
/* Not Reached */
}
switch (i) {
case 0:
strlcpy(qup->fsname, cp,
sizeof(qup->fsname));
break;
case 1:
lim = strtoll(cp, &endpt, 10);
qup->dqblk.dqb_bsoftlimit =
cvtblkval(lim, *endpt,
"block soft limit");
continue;
case 2:
lim = strtoll(cp, &endpt, 10);
qup->dqblk.dqb_bhardlimit =
cvtblkval(lim, *endpt,
"block hard limit");
continue;
case 3:
lim = strtoll(cp, &endpt, 10);
qup->dqblk.dqb_isoftlimit =
cvtinoval(lim, *endpt,
"inode soft limit");
continue;
case 4:
lim = strtoll(cp, &endpt, 10);
qup->dqblk.dqb_ihardlimit =
cvtinoval(lim, *endpt,
"inode hard limit");
continue;
default:
warnx("incorrect quota specification: "
"%s", oldoptarg);
usage();
/* Not Reached */
}
}
if (protoprivs == NULL) {
protoprivs = curprivs = qup;
} else {
curprivs->next = qup;
curprivs = qup;
}
eflag++;
break;
default:
usage();
/* Not Reached */
}
}
argc -= optind;
argv += optind;
if (pflag || eflag) {
if (pflag) {
if ((protoid = getentry(protoname, quotatype)) == -1)
exit(1);
protoprivs = getprivs(protoid, quotatype, fspath);
if (protoprivs == NULL)
exit(0);
for (qup = protoprivs; qup; qup = qup->next) {
qup->dqblk.dqb_btime = 0;
qup->dqblk.dqb_itime = 0;
}
}
for (; argc-- > 0; argv++) {
if (strspn(*argv, "0123456789-") == strlen(*argv) &&
(cp = strchr(*argv, '-')) != NULL) {
*cp++ = '\0';
startuid = atoi(*argv);
enduid = atoi(cp);
if (enduid < startuid)
errx(1,
"ending uid (%d) must be >= starting uid (%d) when using uid ranges",
enduid, startuid);
range = 1;
} else {
startuid = enduid = 0;
range = 0;
}
for ( ; startuid <= enduid; startuid++) {
if (range)
snprintf(buf, sizeof(buf), "%d",
startuid);
else
snprintf(buf, sizeof(buf), "%s",
*argv);
if ((id = getentry(buf, quotatype)) < 0)
continue;
if (pflag) {
putprivs(id, protoprivs);
continue;
}
for (qup = protoprivs; qup; qup = qup->next) {
curprivs = getprivs(id, quotatype,
qup->fsname);
if (curprivs == NULL)
continue;
curprivs->dqblk = qup->dqblk;
putprivs(id, curprivs);
freeprivs(curprivs);
}
}
}
if (pflag)
freeprivs(protoprivs);
exit(0);
}
tmpfd = mkstemp(tmpfil);
fchown(tmpfd, getuid(), getgid());
if (tflag) {
if ((protoprivs = getprivs(0, quotatype, fspath)) != NULL) {
if (writetimes(protoprivs, tmpfd, quotatype) != 0 &&
editit(tmpfil) && readtimes(protoprivs, tmpfil))
putprivs(0L, protoprivs);
freeprivs(protoprivs);
}
close(tmpfd);
unlink(tmpfil);
exit(0);
}
for ( ; argc > 0; argc--, argv++) {
if ((id = getentry(*argv, quotatype)) == -1)
continue;
if ((curprivs = getprivs(id, quotatype, fspath)) == NULL)
exit(1);
if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0)
continue;
if (editit(tmpfil) && readprivs(curprivs, tmpfil))
putprivs(id, curprivs);
freeprivs(curprivs);
}
close(tmpfd);
unlink(tmpfil);
exit(0);
}
static void
usage(void)
{
fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
"usage: edquota [-uh] [-f fspath] [-p username] username ...",
" edquota [-u] -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]",
" username ...",
" edquota -g [-h] [-f fspath] [-p groupname] groupname ...",
" edquota -g -e fspath[:bslim[:bhlim[:islim[:ihlim]]]] [-e ...]",
" groupname ...",
" edquota [-u] -t [-f fspath]",
" edquota -g -t [-f fspath]");
exit(1);
}
/*
* This routine converts a name for a particular quota type to
* an identifier. This routine must agree with the kernel routine
* getinoquota as to the interpretation of quota types.
*/
int
getentry(const char *name, int quotatype)
{
struct passwd *pw;
struct group *gr;
if (alldigits(name))
return (atoi(name));
switch(quotatype) {
case USRQUOTA:
if ((pw = getpwnam(name)))
return (pw->pw_uid);
warnx("%s: no such user", name);
sleep(3);
break;
case GRPQUOTA:
if ((gr = getgrnam(name)))
return (gr->gr_gid);
warnx("%s: no such group", name);
sleep(3);
break;
default:
warnx("%d: unknown quota type", quotatype);
sleep(3);
break;
}
sleep(1);
return (-1);
}
/*
* Collect the requested quota information.
*/
struct quotause *
getprivs(long id, int quotatype, char *fspath)
{
struct quotafile *qf;
struct fstab *fs;
struct quotause *qup, *quptail;
struct quotause *quphead;
setfsent();
quphead = quptail = NULL;
while ((fs = getfsent())) {
if (fspath && *fspath && strcmp(fspath, fs->fs_spec) &&
strcmp(fspath, fs->fs_file))
continue;
if (strcmp(fs->fs_vfstype, "ufs"))
continue;
if ((qf = quota_open(fs, quotatype, O_CREAT|O_RDWR)) == NULL) {
if (errno != EOPNOTSUPP)
warn("cannot open quotas on %s", fs->fs_file);
continue;
}
if ((qup = (struct quotause *)calloc(1, sizeof(*qup))) == NULL)
errx(2, "out of memory");
qup->qf = qf;
strncpy(qup->fsname, fs->fs_file, sizeof(qup->fsname));
if (quota_read(qf, &qup->dqblk, id) == -1) {
warn("cannot read quotas on %s", fs->fs_file);
freeprivs(qup);
continue;
}
if (quphead == NULL)
quphead = qup;
else
quptail->next = qup;
quptail = qup;
qup->next = 0;
}
if (quphead == NULL) {
warnx("No quotas on %s", fspath ? fspath : "any filesystems");
}
endfsent();
return (quphead);
}
/*
* Store the requested quota information.
*/
void
putprivs(long id, struct quotause *quplist)
{
struct quotause *qup;
for (qup = quplist; qup; qup = qup->next)
if (quota_write_limits(qup->qf, &qup->dqblk, id) == -1)
warn("%s", qup->fsname);
}
/*
* Take a list of privileges and get it edited.
*/
int
editit(char *tmpf)
{
long omask;
int pid, status;
omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP));
top:
if ((pid = fork()) < 0) {
if (errno == EPROCLIM) {
warnx("you have too many processes");
return(0);
}
if (errno == EAGAIN) {
sleep(1);
goto top;
}
warn("fork");
return (0);
}
if (pid == 0) {
const char *ed;
sigsetmask(omask);
if (setgid(getgid()) != 0)
err(1, "setgid failed");
if (setuid(getuid()) != 0)
err(1, "setuid failed");
if ((ed = getenv("EDITOR")) == (char *)0)
ed = _PATH_VI;
execlp(ed, ed, tmpf, (char *)0);
err(1, "%s", ed);
}
waitpid(pid, &status, 0);
sigsetmask(omask);
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
return (0);
return (1);
}
/*
* Convert a quotause list to an ASCII file.
*/
int
writeprivs(struct quotause *quplist, int outfd, char *name, int quotatype)
{
struct quotause *qup;
FILE *fd;
ftruncate(outfd, 0);
lseek(outfd, 0, L_SET);
if ((fd = fdopen(dup(outfd), "w")) == NULL)
err(1, "%s", tmpfil);
fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name);
for (qup = quplist; qup; qup = qup->next) {
fprintf(fd, "%s: in use: %s, ", qup->fsname,
fmthumanvalblks(qup->dqblk.dqb_curblocks));
fprintf(fd, "limits (soft = %s, ",
fmthumanvalblks(qup->dqblk.dqb_bsoftlimit));
fprintf(fd, "hard = %s)\n",
fmthumanvalblks(qup->dqblk.dqb_bhardlimit));
fprintf(fd, "\tinodes in use: %s, ",
fmthumanvalinos(qup->dqblk.dqb_curinodes));
fprintf(fd, "limits (soft = %s, ",
fmthumanvalinos(qup->dqblk.dqb_isoftlimit));
fprintf(fd, "hard = %s)\n",
fmthumanvalinos(qup->dqblk.dqb_ihardlimit));
}
fclose(fd);
return (1);
}
char *
fmthumanvalblks(int64_t blocks)
{
static char numbuf[20];
if (hflag) {
humanize_number(numbuf, blocks < 0 ? 7 : 6,
dbtob(blocks), "", HN_AUTOSCALE, HN_NOSPACE);
return (numbuf);
}
snprintf(numbuf, sizeof(numbuf), "%juk", (uintmax_t)dbtokb(blocks));
return(numbuf);
}
char *
fmthumanvalinos(int64_t inos)
{
static char numbuf[20];
if (hflag) {
humanize_number(numbuf, inos < 0 ? 7 : 6,
inos, "", HN_AUTOSCALE, HN_NOSPACE | HN_DIVISOR_1000);
return (numbuf);
}
snprintf(numbuf, sizeof(numbuf), "%ju", (uintmax_t)inos);
return(numbuf);
}
/*
* Merge changes to an ASCII file into a quotause list.
*/
int
readprivs(struct quotause *quplist, char *inname)
{
struct quotause *qup;
FILE *fd;
uintmax_t hardlimit, softlimit, curitems;
char hardunits, softunits, curitemunits;
int cnt;
char *cp;
struct dqblk dqblk;
char *fsp, line1[BUFSIZ], line2[BUFSIZ];
fd = fopen(inname, "r");
if (fd == NULL) {
warnx("can't re-read temp file!!");
return (0);
}
/*
* Discard title line, then read pairs of lines to process.
*/
(void) fgets(line1, sizeof (line1), fd);
while (fgets(line1, sizeof (line1), fd) != NULL &&
fgets(line2, sizeof (line2), fd) != NULL) {
if ((fsp = strtok(line1, " \t:")) == NULL) {
warnx("%s: bad format", line1);
return (0);
}
if ((cp = strtok((char *)0, "\n")) == NULL) {
warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
return (0);
}
cnt = sscanf(cp,
" in use: %ju%c, limits (soft = %ju%c, hard = %ju%c)",
&curitems, &curitemunits, &softlimit, &softunits,
&hardlimit, &hardunits);
/*
* The next three check for old-style input formats.
*/
if (cnt != 6)
cnt = sscanf(cp,
" in use: %ju%c, limits (soft = %ju%c hard = %ju%c",
&curitems, &curitemunits, &softlimit,
&softunits, &hardlimit, &hardunits);
if (cnt != 6)
cnt = sscanf(cp,
" in use: %ju%c, limits (soft = %ju%c hard = %ju%c)",
&curitems, &curitemunits, &softlimit,
&softunits, &hardlimit, &hardunits);
if (cnt != 6)
cnt = sscanf(cp,
" in use: %ju%c, limits (soft = %ju%c, hard = %ju%c",
&curitems, &curitemunits, &softlimit,
&softunits, &hardlimit, &hardunits);
if (cnt != 6) {
warnx("%s:%s: bad format", fsp, cp);
return (0);
}
dqblk.dqb_curblocks = cvtblkval(curitems, curitemunits,
"current block count");
dqblk.dqb_bsoftlimit = cvtblkval(softlimit, softunits,
"block soft limit");
dqblk.dqb_bhardlimit = cvtblkval(hardlimit, hardunits,
"block hard limit");
if ((cp = strtok(line2, "\n")) == NULL) {
warnx("%s: %s: bad format", fsp, line2);
return (0);
}
cnt = sscanf(&cp[7],
" in use: %ju%c limits (soft = %ju%c, hard = %ju%c)",
&curitems, &curitemunits, &softlimit,
&softunits, &hardlimit, &hardunits);
/*
* The next three check for old-style input formats.
*/
if (cnt != 6)
cnt = sscanf(&cp[7],
" in use: %ju%c limits (soft = %ju%c hard = %ju%c",
&curitems, &curitemunits, &softlimit,
&softunits, &hardlimit, &hardunits);
if (cnt != 6)
cnt = sscanf(&cp[7],
" in use: %ju%c limits (soft = %ju%c hard = %ju%c)",
&curitems, &curitemunits, &softlimit,
&softunits, &hardlimit, &hardunits);
if (cnt != 6)
cnt = sscanf(&cp[7],
" in use: %ju%c limits (soft = %ju%c, hard = %ju%c",
&curitems, &curitemunits, &softlimit,
&softunits, &hardlimit, &hardunits);
if (cnt != 6) {
warnx("%s: %s: bad format cnt %d", fsp, &cp[7], cnt);
return (0);
}
dqblk.dqb_curinodes = cvtinoval(curitems, curitemunits,
"current inode count");
dqblk.dqb_isoftlimit = cvtinoval(softlimit, softunits,
"inode soft limit");
dqblk.dqb_ihardlimit = cvtinoval(hardlimit, hardunits,
"inode hard limit");
for (qup = quplist; qup; qup = qup->next) {
if (strcmp(fsp, qup->fsname))
continue;
/*
* Cause time limit to be reset when the quota
* is next used if previously had no soft limit
* or were under it, but now have a soft limit
* and are over it.
*/
if (dqblk.dqb_bsoftlimit &&
qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit &&
(qup->dqblk.dqb_bsoftlimit == 0 ||
qup->dqblk.dqb_curblocks <
qup->dqblk.dqb_bsoftlimit))
qup->dqblk.dqb_btime = 0;
if (dqblk.dqb_isoftlimit &&
qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit &&
(qup->dqblk.dqb_isoftlimit == 0 ||
qup->dqblk.dqb_curinodes <
qup->dqblk.dqb_isoftlimit))
qup->dqblk.dqb_itime = 0;
qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit;
qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit;
qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit;
qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit;
qup->flags |= FOUND;
/* Humanized input returns only approximate counts */
if (hflag ||
(dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks &&
dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes))
break;
warnx("%s: cannot change current allocation", fsp);
break;
}
}
fclose(fd);
/*
* Disable quotas for any filesystems that have not been found.
*/
for (qup = quplist; qup; qup = qup->next) {
if (qup->flags & FOUND) {
qup->flags &= ~FOUND;
continue;
}
qup->dqblk.dqb_bsoftlimit = 0;
qup->dqblk.dqb_bhardlimit = 0;
qup->dqblk.dqb_isoftlimit = 0;
qup->dqblk.dqb_ihardlimit = 0;
}
return (1);
}
/*
* Convert a quotause list to an ASCII file of grace times.
*/
int
writetimes(struct quotause *quplist, int outfd, int quotatype)
{
struct quotause *qup;
FILE *fd;
ftruncate(outfd, 0);
lseek(outfd, 0, L_SET);
if ((fd = fdopen(dup(outfd), "w")) == NULL)
err(1, "%s", tmpfil);
fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n");
fprintf(fd, "Grace period before enforcing soft limits for %ss:\n",
qfextension[quotatype]);
for (qup = quplist; qup; qup = qup->next) {
fprintf(fd, "%s: block grace period: %s, ",
qup->fsname, cvtstoa(qup->dqblk.dqb_btime));
fprintf(fd, "file grace period: %s\n",
cvtstoa(qup->dqblk.dqb_itime));
}
fclose(fd);
return (1);
}
/*
* Merge changes of grace times in an ASCII file into a quotause list.
*/
int
readtimes(struct quotause *quplist, char *inname)
{
struct quotause *qup;
FILE *fd;
int cnt;
char *cp;
uintmax_t itime, btime, iseconds, bseconds;
char *fsp, bunits[10], iunits[10], line1[BUFSIZ];
fd = fopen(inname, "r");
if (fd == NULL) {
warnx("can't re-read temp file!!");
return (0);
}
/*
* Discard two title lines, then read lines to process.
*/
(void) fgets(line1, sizeof (line1), fd);
(void) fgets(line1, sizeof (line1), fd);
while (fgets(line1, sizeof (line1), fd) != NULL) {
if ((fsp = strtok(line1, " \t:")) == NULL) {
warnx("%s: bad format", line1);
return (0);
}
if ((cp = strtok((char *)0, "\n")) == NULL) {
warnx("%s: %s: bad format", fsp, &fsp[strlen(fsp) + 1]);
return (0);
}
cnt = sscanf(cp,
" block grace period: %ju %s file grace period: %ju %s",
&btime, bunits, &itime, iunits);
if (cnt != 4) {
warnx("%s:%s: bad format", fsp, cp);
return (0);
}
if (cvtatos(btime, bunits, &bseconds) == 0)
return (0);
if (cvtatos(itime, iunits, &iseconds) == 0)
return (0);
for (qup = quplist; qup; qup = qup->next) {
if (strcmp(fsp, qup->fsname))
continue;
qup->dqblk.dqb_btime = bseconds;
qup->dqblk.dqb_itime = iseconds;
qup->flags |= FOUND;
break;
}
}
fclose(fd);
/*
* reset default grace periods for any filesystems
* that have not been found.
*/
for (qup = quplist; qup; qup = qup->next) {
if (qup->flags & FOUND) {
qup->flags &= ~FOUND;
continue;
}
qup->dqblk.dqb_btime = 0;
qup->dqblk.dqb_itime = 0;
}
return (1);
}
/*
* Convert seconds to ASCII times.
*/
char *
cvtstoa(uint64_t secs)
{
static char buf[20];
if (secs % (24 * 60 * 60) == 0) {
secs /= 24 * 60 * 60;
sprintf(buf, "%ju day%s", (uintmax_t)secs,
secs == 1 ? "" : "s");
} else if (secs % (60 * 60) == 0) {
secs /= 60 * 60;
sprintf(buf, "%ju hour%s", (uintmax_t)secs,
secs == 1 ? "" : "s");
} else if (secs % 60 == 0) {
secs /= 60;
sprintf(buf, "%ju minute%s", (uintmax_t)secs,
secs == 1 ? "" : "s");
} else
sprintf(buf, "%ju second%s", (uintmax_t)secs,
secs == 1 ? "" : "s");
return (buf);
}
/*
* Convert ASCII input times to seconds.
*/
int
cvtatos(uint64_t period, char *units, uint64_t *seconds)
{
if (bcmp(units, "second", 6) == 0)
*seconds = period;
else if (bcmp(units, "minute", 6) == 0)
*seconds = period * 60;
else if (bcmp(units, "hour", 4) == 0)
*seconds = period * 60 * 60;
else if (bcmp(units, "day", 3) == 0)
*seconds = period * 24 * 60 * 60;
else {
warnx("%s: bad units, specify %s\n", units,
"days, hours, minutes, or seconds");
return (0);
}
return (1);
}
/*
* Convert a limit to number of disk blocks.
*/
uint64_t
cvtblkval(uint64_t limit, char units, const char *itemname)
{
switch(units) {
case 'B':
case 'b':
limit = btodb(limit);
break;
case '\0': /* historic behavior */
case ',': /* historic behavior */
case ')': /* historic behavior */
case 'K':
case 'k':
limit *= btodb(1024);
break;
case 'M':
case 'm':
limit *= btodb(1048576);
break;
case 'G':
case 'g':
limit *= btodb(1073741824);
break;
case 'T':
case 't':
limit *= btodb(1099511627776);
break;
case 'P':
case 'p':
limit *= btodb(1125899906842624);
break;
case 'E':
case 'e':
limit *= btodb(1152921504606846976);
break;
case ' ':
errx(2, "No space permitted between value and units for %s\n",
itemname);
break;
default:
errx(2, "%ju%c: unknown units for %s, specify "
"none, K, M, G, T, P, or E\n",
(uintmax_t)limit, units, itemname);
break;
}
return (limit);
}
/*
* Convert a limit to number of inodes.
*/
uint64_t
cvtinoval(uint64_t limit, char units, const char *itemname)
{
switch(units) {
case 'B':
case 'b':
case '\0': /* historic behavior */
case ',': /* historic behavior */
case ')': /* historic behavior */
break;
case 'K':
case 'k':
limit *= 1000;
break;
case 'M':
case 'm':
limit *= 1000000;
break;
case 'G':
case 'g':
limit *= 1000000000;
break;
case 'T':
case 't':
limit *= 1000000000000;
break;
case 'P':
case 'p':
limit *= 1000000000000000;
break;
case 'E':
case 'e':
limit *= 1000000000000000000;
break;
case ' ':
errx(2, "No space permitted between value and units for %s\n",
itemname);
break;
default:
errx(2, "%ju%c: unknown units for %s, specify "
"none, K, M, G, T, P, or E\n",
(uintmax_t)limit, units, itemname);
break;
}
return (limit);
}
/*
* Free a list of quotause structures.
*/
void
freeprivs(struct quotause *quplist)
{
struct quotause *qup, *nextqup;
for (qup = quplist; qup; qup = nextqup) {
quota_close(qup->qf);
nextqup = qup->next;
free(qup);
}
}
/*
* Check whether a string is completely composed of digits.
*/
int
alldigits(const char *s)
{
int c;
c = *s++;
do {
if (!isdigit(c))
return (0);
} while ((c = *s++));
return (1);
}
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