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/* dosfsck.c - User interface
Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
On Debian systems, the complete text of the GNU General Public License
can be found in /usr/share/common-licenses/GPL-3 file.
*/
/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
* by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
#include "version.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include "common.h"
#include "dosfsck.h"
#include "io.h"
#include "boot.h"
#include "fat.h"
#include "file.h"
#include "check.h"
int interactive = 0,rw = 0,list = 0,test = 0,verbose = 0,write_immed = 0;
int atari_format = 0;
unsigned n_files = 0;
void *mem_queue = NULL;
static void usage(char *name)
{
fprintf(stderr,"usage: %s [-aAflrtvVwy] [-d path -d ...] "
"[-u path -u ...]\n%15sdevice\n",name,"");
fprintf(stderr," -a automatically repair the file system\n");
fprintf(stderr," -A toggle Atari file system format\n");
fprintf(stderr," -d path drop that file\n");
fprintf(stderr," -f salvage unused chains to files\n");
fprintf(stderr," -l list path names\n");
fprintf(stderr," -n no-op, check non-interactively without changing\n");
fprintf(stderr," -p same as -a, for compat with other *fsck\n");
fprintf(stderr," -r interactively repair the file system\n");
fprintf(stderr," -t test for bad clusters\n");
fprintf(stderr," -u path try to undelete that (non-directory) file\n");
fprintf(stderr," -v verbose mode\n");
fprintf(stderr," -V perform a verification pass\n");
fprintf(stderr," -w write changes to disk immediately\n");
fprintf(stderr," -y same as -a, for compat with other *fsck\n");
exit(2);
}
/*
* ++roman: On m68k, check if this is an Atari; if yes, turn on Atari variant
* of MS-DOS filesystem by default.
*/
static void check_atari( void )
{
#ifdef __mc68000__
FILE *f;
char line[128], *p;
if (!(f = fopen( "/proc/hardware", "r" ))) {
perror( "/proc/hardware" );
return;
}
while( fgets( line, sizeof(line), f ) ) {
if (strncmp( line, "Model:", 6 ) == 0) {
p = line + 6;
p += strspn( p, " \t" );
if (strncmp( p, "Atari ", 6 ) == 0)
atari_format = 1;
break;
}
}
fclose( f );
#endif
}
int main(int argc,char **argv)
{
DOS_FS fs;
int salvage_files,verify,c;
unsigned n_files_check=0, n_files_verify=0;
unsigned long free_clusters;
memset(&fs, 0, sizeof(fs));
rw = salvage_files = verify = 0;
interactive = 1;
check_atari();
while ((c = getopt(argc,argv,"Aad:flnprtu:vVwy")) != EOF)
switch (c) {
case 'A': /* toggle Atari format */
atari_format = !atari_format;
break;
case 'a':
case 'p':
case 'y':
rw = 1;
interactive = 0;
salvage_files = 1;
break;
case 'd':
file_add(optarg,fdt_drop);
break;
case 'f':
salvage_files = 1;
break;
case 'l':
list = 1;
break;
case 'n':
rw = 0;
interactive = 0;
break;
case 'r':
rw = 1;
interactive = 1;
break;
case 't':
test = 1;
break;
case 'u':
file_add(optarg,fdt_undelete);
break;
case 'v':
verbose = 1;
printf("dosfsck " VERSION " (" VERSION_DATE ")\n");
break;
case 'V':
verify = 1;
break;
case 'w':
write_immed = 1;
break;
default:
usage(argv[0]);
}
if ((test || write_immed) && !rw) {
fprintf(stderr,"-t and -w require -a or -r\n");
exit(2);
}
if (optind != argc-1) usage(argv[0]);
printf( "dosfsck " VERSION ", " VERSION_DATE ", FAT32, LFN\n" );
fs_open(argv[optind],rw);
read_boot(&fs);
if (verify) printf("Starting check/repair pass.\n");
while (read_fat(&fs), scan_root(&fs)) qfree(&mem_queue);
if (test) fix_bad(&fs);
if (salvage_files) reclaim_file(&fs);
else reclaim_free(&fs);
free_clusters = update_free(&fs);
file_unused();
qfree(&mem_queue);
n_files_check = n_files;
if (verify) {
n_files = 0;
printf("Starting verification pass.\n");
read_fat(&fs);
scan_root(&fs);
reclaim_free(&fs);
qfree(&mem_queue);
n_files_verify = n_files;
}
if (fs_changed()) {
if (rw) {
if (interactive)
rw = get_key("yn","Perform changes ? (y/n)") == 'y';
else printf("Performing changes.\n");
}
else
printf("Leaving file system unchanged.\n");
}
printf( "%s: %u files, %lu/%lu clusters\n", argv[optind],
n_files, fs.clusters - free_clusters, fs.clusters );
return fs_close(rw) ? 1 : 0;
}
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