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185 lines
4.2 KiB
C
185 lines
4.2 KiB
C
/* dosfsck.c - User interface */
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/* Written 1993 by Werner Almesberger */
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/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
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* by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
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#include "version.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <getopt.h>
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#include "common.h"
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#include "dosfsck.h"
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#include "io.h"
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#include "boot.h"
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#include "fat.h"
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#include "file.h"
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#include "check.h"
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int interactive = 0,list = 0,test = 0,verbose = 0,write_immed = 0;
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int atari_format = 0;
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unsigned n_files = 0;
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void *mem_queue = NULL;
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static void usage(char *name)
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{
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fprintf(stderr,"usage: %s [-aAflrtvVwy] [-d path -d ...] "
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"[-u path -u ...]\n%15sdevice\n",name,"");
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fprintf(stderr," -a automatically repair the file system\n");
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fprintf(stderr," -A toggle Atari file system format\n");
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fprintf(stderr," -d path drop that file\n");
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fprintf(stderr," -f salvage unused chains to files\n");
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fprintf(stderr," -l list path names\n");
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fprintf(stderr," -n no-op, check non-interactively without changing\n");
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fprintf(stderr," -r interactively repair the file system\n");
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fprintf(stderr," -t test for bad clusters\n");
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fprintf(stderr," -u path try to undelete that (non-directory) file\n");
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fprintf(stderr," -v verbose mode\n");
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fprintf(stderr," -V perform a verification pass\n");
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fprintf(stderr," -w write changes to disk immediately\n");
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fprintf(stderr," -y same as -a, for compat with other *fsck\n");
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exit(2);
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}
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/*
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* ++roman: On m68k, check if this is an Atari; if yes, turn on Atari variant
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* of MS-DOS filesystem by default.
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*/
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static void check_atari( void )
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{
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#ifdef __mc68000__
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FILE *f;
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char line[128], *p;
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if (!(f = fopen( "/proc/hardware", "r" ))) {
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perror( "/proc/hardware" );
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return;
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}
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while( fgets( line, sizeof(line), f ) ) {
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if (strncmp( line, "Model:", 6 ) == 0) {
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p = line + 6;
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p += strspn( p, " \t" );
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if (strncmp( p, "Atari ", 6 ) == 0)
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atari_format = 1;
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break;
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}
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}
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fclose( f );
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#endif
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}
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int main(int argc,char **argv)
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{
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DOS_FS fs;
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int rw,salvage_files,verify,c;
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unsigned long free_clusters;
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rw = salvage_files = verify = 0;
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interactive = 1;
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check_atari();
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while ((c = getopt(argc,argv,"Aad:flnrtu:vVwy")) != EOF)
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switch (c) {
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case 'A': /* toggle Atari format */
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atari_format = !atari_format;
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break;
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case 'a':
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case 'y':
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rw = 1;
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interactive = 0;
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salvage_files = 1;
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break;
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case 'd':
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file_add(optarg,fdt_drop);
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break;
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case 'f':
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salvage_files = 1;
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break;
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case 'l':
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list = 1;
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break;
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case 'n':
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rw = 0;
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interactive = 0;
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break;
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case 'r':
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rw = 1;
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interactive = 1;
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break;
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case 't':
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test = 1;
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break;
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case 'u':
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file_add(optarg,fdt_undelete);
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break;
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case 'v':
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verbose = 1;
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printf("dosfsck " VERSION " (" VERSION_DATE ")\n");
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break;
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case 'V':
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verify = 1;
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break;
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case 'w':
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write_immed = 1;
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break;
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default:
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usage(argv[0]);
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}
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if ((test || write_immed) && !rw) {
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fprintf(stderr,"-t and -w require -a or -r\n");
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exit(2);
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}
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if (optind != argc-1) usage(argv[0]);
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printf( "dosfsck " VERSION ", " VERSION_DATE ", FAT32, LFN\n" );
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fs_open(argv[optind],rw);
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read_boot(&fs);
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if (verify) printf("Starting check/repair pass.\n");
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while (read_fat(&fs), scan_root(&fs)) qfree(&mem_queue);
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if (test) fix_bad(&fs);
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if (salvage_files) reclaim_file(&fs);
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else reclaim_free(&fs);
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free_clusters = update_free(&fs);
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file_unused();
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qfree(&mem_queue);
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if (verify) {
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printf("Starting verification pass.\n");
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read_fat(&fs);
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scan_root(&fs);
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reclaim_free(&fs);
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qfree(&mem_queue);
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}
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if (fs_changed()) {
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if (rw) {
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if (interactive)
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rw = get_key("yn","Perform changes ? (y/n)") == 'y';
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else printf("Performing changes.\n");
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}
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else
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printf("Leaving file system unchanged.\n");
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}
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printf( "%s: %u files, %lu/%lu clusters\n", argv[optind],
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n_files, fs.clusters - free_clusters, fs.clusters );
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return fs_close(rw) ? 1 : 0;
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}
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/* Local Variables: */
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/* tab-width: 8 */
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/* End: */
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