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freebsd-skq/usr.sbin/edquota/edquota.c
truckman 7ff462184f Use strlcpy() instead of strncpy() to ensure that qup->fsname is NUL 
terminated.  Don't bother checking for truncation since the subsequent
quota_read() should detect that and fail.

Reported by:	Coverity
CID:		1009980
MFC after:	1 week
2016-05-13 00:02:03 +00:00

960 lines
23 KiB
C
Raw Blame History

/*
* 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/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 = mkostemp(tmpfil, O_CLOEXEC);
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;
strlcpy(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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