freebsd-skq/sbin/fsck_ffs/utilities.c
scottl cbabeda669 MFC r260068, r260069, r260076
Add the -R option to allow fsck_ffs to restart itself when too many critical
 errors have been detected in a particular run.

 Clean up the global state variables so that a restart can happen correctly.

 Separate the global variables in fsck_ffs and fsdb to their own file.  This
 fixes header sharing with fscd.

 Correctly initialize, static-ize, and remove global variables as needed in
 dir.c.  This fixes a problem with lost+found directories that was causing
 a segfault.

 Correctly initialize, static-ize, and remove global variables as needed in
 suj.c.

 Initialize the suj globals before allocating the disk object, not after.
 Also ensure that 'preen' mode doesn't conflict with 'restart' mode

Obtained from:	Netflix
2014-01-02 01:44:14 +00:00

111 lines
3.1 KiB
C

/*
* Copyright (c) 1980, 1986, 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.
* 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 sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ufs/dir.h>
#include <ufs/ffs/fs.h>
#include <err.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <fstab.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "fsck.h"
char *
blockcheck(char *origname)
{
struct stat stblock;
char *newname, *cp;
struct fstab *fsinfo;
int retried = 0, len;
static char device[MAXPATHLEN];
newname = origname;
if (stat(newname, &stblock) < 0) {
cp = strrchr(newname, '/');
if (cp == 0) {
(void)snprintf(device, sizeof(device), "%s%s",
_PATH_DEV, newname);
newname = device;
}
}
retry:
if (stat(newname, &stblock) < 0) {
printf("Can't stat %s: %s\n", newname, strerror(errno));
return (origname);
}
switch(stblock.st_mode & S_IFMT) {
case S_IFCHR:
case S_IFBLK:
return(newname);
case S_IFDIR:
if (retried)
break;
len = strlen(origname) - 1;
if (len > 0 && origname[len] == '/')
/* remove trailing slash */
origname[len] = '\0';
if ((fsinfo = getfsfile(origname)) == NULL) {
printf(
"Can't resolve %s to character special device.\n",
origname);
return (origname);
}
newname = fsinfo->fs_spec;
retried++;
goto retry;
}
/*
* Not a block or character device, just return name and
* let the user decide whether to use it.
*/
return (origname);
}