freebsd-skq/sbin/quotacheck/preen.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

292 lines
6.9 KiB
C

/* $NetBSD: preen.c,v 1.18 1998/07/26 20:02:36 mycroft Exp $ */
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)preen.c 8.5 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: preen.c,v 1.18 1998/07/26 20:02:36 mycroft Exp $");
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/queue.h>
#include <ufs/ufs/quota.h>
#include <err.h>
#include <ctype.h>
#include <fcntl.h>
#include <fstab.h>
#include <libutil.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "quotacheck.h"
struct partentry {
TAILQ_ENTRY(partentry) p_entries;
char *p_devname; /* device name */
const char *p_mntpt; /* mount point */
struct quotafile *p_qfu; /* user quota file info ptr */
struct quotafile *p_qfg; /* group quota file info */
};
TAILQ_HEAD(part, partentry) badh;
struct diskentry {
TAILQ_ENTRY(diskentry) d_entries;
char *d_name; /* disk base name */
TAILQ_HEAD(prt, partentry) d_part; /* list of partitions on disk */
int d_pid; /* 0 or pid of fsck proc */
};
TAILQ_HEAD(disk, diskentry) diskh;
static struct diskentry *finddisk(const char *);
static void addpart(struct fstab *, struct quotafile *, struct quotafile *);
static int startdisk(struct diskentry *);
extern void *emalloc(size_t);
extern char *estrdup(const char *);
int
checkfstab(int uflag, int gflag)
{
struct fstab *fs;
struct diskentry *d, *nextdisk;
struct partentry *p;
int ret, pid, retcode, passno, sumstatus, status, nextpass;
struct quotafile *qfu, *qfg;
TAILQ_INIT(&badh);
TAILQ_INIT(&diskh);
sumstatus = 0;
nextpass = 0;
for (passno = 1; nextpass != INT_MAX; passno = nextpass) {
nextpass = INT_MAX;
if (setfsent() == 0) {
warnx("Can't open checklist file: %s\n", _PATH_FSTAB);
return (8);
}
while ((fs = getfsent()) != NULL) {
if (fs->fs_passno > passno && fs->fs_passno < nextpass)
nextpass = fs->fs_passno;
if (passno != fs->fs_passno)
continue;
qfu = NULL;
if (uflag)
qfu = quota_open(fs, USRQUOTA, O_CREAT|O_RDWR);
qfg = NULL;
if (gflag)
qfg = quota_open(fs, GRPQUOTA, O_CREAT|O_RDWR);
if (qfu == NULL && qfg == NULL)
continue;
if (passno == 1) {
sumstatus = chkquota(fs->fs_spec, qfu, qfg);
if (qfu)
quota_close(qfu);
if (qfg)
quota_close(qfg);
if (sumstatus)
return (sumstatus);
continue;
}
addpart(fs, qfu, qfg);
}
if (passno == 1)
continue;
TAILQ_FOREACH(nextdisk, &diskh, d_entries) {
if ((ret = startdisk(nextdisk)) != 0)
return ret;
}
while ((pid = wait(&status)) != -1) {
TAILQ_FOREACH(d, &diskh, d_entries)
if (d->d_pid == pid)
break;
if (d == NULL) {
warnx("Unknown pid %d\n", pid);
continue;
}
if (WIFEXITED(status))
retcode = WEXITSTATUS(status);
else
retcode = 0;
p = TAILQ_FIRST(&d->d_part);
if (WIFSIGNALED(status)) {
(void) fprintf(stderr,
"%s: (%s): EXITED WITH SIGNAL %d\n",
p->p_devname, p->p_mntpt,
WTERMSIG(status));
retcode = 8;
}
TAILQ_REMOVE(&d->d_part, p, p_entries);
if (retcode != 0) {
TAILQ_INSERT_TAIL(&badh, p, p_entries);
sumstatus |= retcode;
} else {
free(p->p_devname);
if (p->p_qfu)
quota_close(p->p_qfu);
if (p->p_qfg)
quota_close(p->p_qfg);
free(p);
}
d->d_pid = 0;
if (TAILQ_EMPTY(&d->d_part)) {
TAILQ_REMOVE(&diskh, d, d_entries);
} else {
if ((ret = startdisk(d)) != 0)
return ret;
}
}
}
if (sumstatus) {
p = TAILQ_FIRST(&badh);
if (p == NULL)
return (sumstatus);
(void) fprintf(stderr,
"THE FOLLOWING FILE SYSTEM%s HAD AN %s\n\t",
TAILQ_NEXT(p, p_entries) ? "S" : "",
"UNEXPECTED INCONSISTENCY:");
for (; p; p = TAILQ_NEXT(p, p_entries))
(void) fprintf(stderr,
"%s: (%s)%s", p->p_devname, p->p_mntpt,
TAILQ_NEXT(p, p_entries) ? ", " : "\n");
return sumstatus;
}
(void) endfsent();
return (0);
}
static struct diskentry *
finddisk(const char *name)
{
const char *p;
size_t len = 0;
struct diskentry *d;
p = strrchr(name, '/');
if (p == NULL)
p = name;
else
p++;
for (; *p && !isdigit(*p); p++)
continue;
for (; *p && isdigit(*p); p++)
continue;
len = p - name;
if (len == 0)
len = strlen(name);
TAILQ_FOREACH(d, &diskh, d_entries)
if (strncmp(d->d_name, name, len) == 0 && d->d_name[len] == 0)
return d;
d = emalloc(sizeof(*d));
d->d_name = estrdup(name);
d->d_name[len] = '\0';
TAILQ_INIT(&d->d_part);
d->d_pid = 0;
TAILQ_INSERT_TAIL(&diskh, d, d_entries);
return d;
}
static void
addpart(struct fstab *fs, struct quotafile *qfu, struct quotafile *qfg)
{
struct diskentry *d = finddisk(fs->fs_spec);
struct partentry *p;
TAILQ_FOREACH(p, &d->d_part, p_entries)
if (strcmp(p->p_devname, fs->fs_spec) == 0) {
warnx("%s in fstab more than once!\n", fs->fs_spec);
return;
}
p = emalloc(sizeof(*p));
p->p_devname = estrdup(blockcheck(fs->fs_spec));
if (qfu != NULL)
p->p_mntpt = quota_fsname(qfu);
else
p->p_mntpt = quota_fsname(qfg);
p->p_qfu = qfu;
p->p_qfg = qfg;
TAILQ_INSERT_TAIL(&d->d_part, p, p_entries);
}
static int
startdisk(struct diskentry *d)
{
struct partentry *p = TAILQ_FIRST(&d->d_part);
d->d_pid = fork();
if (d->d_pid < 0) {
perror("fork");
return (8);
}
if (d->d_pid == 0)
exit(chkquota(p->p_devname, p->p_qfu, p->p_qfg));
return (0);
}