freebsd-dev/usr.sbin/repquota/repquota.c
Pedro F. Giffuni 8a16b7a18f General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00

374 lines
9.0 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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.
* 3. 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[] = "@(#)repquota.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Quota report
*/
#include <sys/param.h>
#include <sys/mount.h>
#include <ufs/ufs/quota.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <fstab.h>
#include <grp.h>
#include <libutil.h>
#include <pwd.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.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
#define max(a,b) ((a) >= (b) ? (a) : (b))
static const char *qfextension[] = INITQFNAMES;
struct fileusage {
struct fileusage *fu_next;
u_long fu_id;
char fu_name[1];
/* actually bigger */
};
#define FUHASH 1024 /* must be power of two */
static struct fileusage *fuhead[MAXQUOTAS][FUHASH];
static struct fileusage *lookup(u_long, int);
static struct fileusage *addid(u_long, int, char *);
static u_long highid[MAXQUOTAS]; /* highest addid()'ed identifier per type */
static int vflag; /* verbose */
static int aflag; /* all filesystems */
static int nflag; /* display user/group by id */
static int hflag; /* display in human readable format */
int oneof(char *, char *[], int);
int repquota(struct fstab *, int);
char *timeprt(time_t);
static void prthumanval(int64_t bytes);
static void usage(void);
int
main(int argc, char *argv[])
{
struct fstab *fs;
struct passwd *pw;
struct group *gr;
int ch, gflag = 0, uflag = 0, errs = 0;
long i, argnum, done = 0;
while ((ch = getopt(argc, argv, "aghnuv")) != -1) {
switch(ch) {
case 'a':
aflag++;
break;
case 'g':
gflag++;
break;
case 'h':
hflag++;
break;
case 'n':
nflag++;
break;
case 'u':
uflag++;
break;
case 'v':
vflag++;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc == 0 && !aflag)
usage();
if (!gflag && !uflag) {
if (aflag)
gflag++;
uflag++;
}
if (gflag && !nflag) {
setgrent();
while ((gr = getgrent()) != 0)
(void) addid((u_long)gr->gr_gid, GRPQUOTA, gr->gr_name);
endgrent();
}
if (uflag && !nflag) {
setpwent();
while ((pw = getpwent()) != 0)
(void) addid((u_long)pw->pw_uid, USRQUOTA, pw->pw_name);
endpwent();
}
setfsent();
while ((fs = getfsent()) != NULL) {
if (strcmp(fs->fs_vfstype, "ufs"))
continue;
if (aflag) {
if (gflag)
errs += repquota(fs, GRPQUOTA);
if (uflag)
errs += repquota(fs, USRQUOTA);
continue;
}
if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 ||
(argnum = oneof(fs->fs_spec, argv, argc)) >= 0) {
done |= 1 << argnum;
if (gflag)
errs += repquota(fs, GRPQUOTA);
if (uflag)
errs += repquota(fs, USRQUOTA);
}
}
endfsent();
for (i = 0; i < argc; i++)
if ((done & (1 << i)) == 0)
warnx("%s not found in fstab", argv[i]);
exit(errs);
}
static void
usage(void)
{
fprintf(stderr, "%s\n%s\n",
"usage: repquota [-h] [-v] [-g] [-n] [-u] -a",
" repquota [-h] [-v] [-g] [-n] [-u] filesystem ...");
exit(1);
}
int
repquota(struct fstab *fs, int type)
{
struct fileusage *fup;
struct quotafile *qf;
u_long id, maxid;
struct dqblk dqbuf;
static int multiple = 0;
if ((qf = quota_open(fs, type, O_RDONLY)) == NULL) {
if (vflag && !aflag) {
if (multiple++)
printf("\n");
fprintf(stdout, "*** No %s quotas on %s (%s)\n",
qfextension[type], fs->fs_file, fs->fs_spec);
return(1);
}
return(0);
}
if (multiple++)
printf("\n");
if (vflag)
fprintf(stdout, "*** Report for %s quotas on %s (%s)\n",
qfextension[type], fs->fs_file, fs->fs_spec);
printf("%*s Block limits File limits\n",
max(MAXLOGNAME - 1, 10), " ");
printf("User%*s used soft hard grace used soft hard grace\n",
max(MAXLOGNAME - 1, 10), " ");
maxid = quota_maxid(qf);
for (id = 0; id <= maxid; id++) {
if (quota_read(qf, &dqbuf, id) != 0)
break;
if (dqbuf.dqb_curinodes == 0 && dqbuf.dqb_curblocks == 0)
continue;
if ((fup = lookup(id, type)) == 0)
fup = addid(id, type, (char *)0);
printf("%-*s ", max(MAXLOGNAME - 1, 10), fup->fu_name);
printf("%c%c",
dqbuf.dqb_bsoftlimit &&
dqbuf.dqb_curblocks >=
dqbuf.dqb_bsoftlimit ? '+' : '-',
dqbuf.dqb_isoftlimit &&
dqbuf.dqb_curinodes >=
dqbuf.dqb_isoftlimit ? '+' : '-');
prthumanval(dqbuf.dqb_curblocks);
prthumanval(dqbuf.dqb_bsoftlimit);
prthumanval(dqbuf.dqb_bhardlimit);
printf(" %6s",
dqbuf.dqb_bsoftlimit &&
dqbuf.dqb_curblocks >=
dqbuf.dqb_bsoftlimit ?
timeprt(dqbuf.dqb_btime) : "-");
printf(" %7ju %7ju %7ju %6s\n",
(uintmax_t)dqbuf.dqb_curinodes,
(uintmax_t)dqbuf.dqb_isoftlimit,
(uintmax_t)dqbuf.dqb_ihardlimit,
dqbuf.dqb_isoftlimit &&
dqbuf.dqb_curinodes >=
dqbuf.dqb_isoftlimit ?
timeprt(dqbuf.dqb_itime) : "-");
}
quota_close(qf);
return (0);
}
static void
prthumanval(int64_t blocks)
{
char buf[7];
int flags;
if (!hflag) {
printf(" %6ju", (uintmax_t)dbtokb(blocks));
return;
}
flags = HN_NOSPACE | HN_DECIMAL;
if (blocks != 0)
flags |= HN_B;
humanize_number(buf, sizeof(buf) - (blocks < 0 ? 0 : 1),
dbtob(blocks), "", HN_AUTOSCALE, flags);
(void)printf("%7s", buf);
}
/*
* Check to see if target appears in list of size cnt.
*/
int
oneof(char *target, char *list[], int cnt)
{
int i;
for (i = 0; i < cnt; i++)
if (strcmp(target, list[i]) == 0)
return (i);
return (-1);
}
/*
* Routines to manage the file usage table.
*
* Lookup an id of a specific type.
*/
struct fileusage *
lookup(u_long id, int type)
{
struct fileusage *fup;
for (fup = fuhead[type][id & (FUHASH-1)]; fup != 0; fup = fup->fu_next)
if (fup->fu_id == id)
return (fup);
return ((struct fileusage *)0);
}
/*
* Add a new file usage id if it does not already exist.
*/
struct fileusage *
addid(u_long id, int type, char *name)
{
struct fileusage *fup, **fhp;
int len;
if ((fup = lookup(id, type)))
return (fup);
if (name)
len = strlen(name);
else
len = 10;
if ((fup = (struct fileusage *)calloc(1, sizeof(*fup) + len)) == NULL)
errx(1, "out of memory for fileusage structures");
fhp = &fuhead[type][id & (FUHASH - 1)];
fup->fu_next = *fhp;
*fhp = fup;
fup->fu_id = id;
if (id > highid[type])
highid[type] = id;
if (name) {
bcopy(name, fup->fu_name, len + 1);
} else {
sprintf(fup->fu_name, "%lu", id);
}
return (fup);
}
/*
* Calculate the grace period and return a printable string for it.
*/
char *
timeprt(time_t seconds)
{
time_t hours, minutes;
static char buf[20];
static time_t now;
if (now == 0)
time(&now);
if (now > seconds) {
strlcpy(buf, "none", sizeof (buf));
return (buf);
}
seconds -= now;
minutes = (seconds + 30) / 60;
hours = (minutes + 30) / 60;
if (hours >= 36) {
sprintf(buf, "%lddays", (long)(hours + 12) / 24);
return (buf);
}
if (minutes >= 60) {
sprintf(buf, "%2ld:%ld", (long)minutes / 60,
(long)minutes % 60);
return (buf);
}
sprintf(buf, "%2ld", (long)minutes);
return (buf);
}