source: trunk/minix/commands/i386/mtools-3.9.7/mbadblocks.c@ 16

/*
 * mbadblocks.c
 * Mark bad blocks on disk
 *
 */

#include "sysincludes.h"
#include "msdos.h"
#include "mtools.h"
#include "mainloop.h"
#include "fsP.h"

void mbadblocks(int argc, char **argv, int type)
{
        int i;
        char *in_buf;
        int in_len;
        off_t start;
        struct MainParam_t mp;
        Fs_t *Fs;
        Stream_t *Dir;
        int ret;

        if (argc != 2 || skip_drive(argv[1]) == argv[1]) {
                fprintf(stderr, "Mtools version %s, dated %s\n", 
                        mversion, mdate);
                fprintf(stderr, "Usage: %s drive:\n", argv[0]);
                exit(1);
        }

        init_mp(&mp);

        Dir = open_root_dir(get_drive(argv[1], NULL), O_RDWR);
        if (!Dir) {
                fprintf(stderr,"%s: Cannot initialize drive\n", argv[0]);
                exit(1);
        }

        Fs = (Fs_t *)GetFs(Dir);
        in_len = Fs->cluster_size * Fs->sector_size;
        in_buf = malloc(in_len);
        if(!in_buf) {
                FREE(&Dir);
                printOom();
                exit(1);
        }
        for(i=0; i < Fs->clus_start; i++ ){
                ret = READS(Fs->Next, 
                                        in_buf, sectorsToBytes((Stream_t*)Fs, i), Fs->sector_size);
                if( ret < 0 ){
                        perror("early error");
                        exit(1);
                }
                if(ret < Fs->sector_size){
                        fprintf(stderr,"end of file in file_read\n");
                        exit(1);
                }
        }
                
        in_len = Fs->cluster_size * Fs->sector_size;
        for(i=2; i< Fs->num_clus + 2; i++){
                if(got_signal)
                        break;
                if(Fs->fat_decode((Fs_t*)Fs,i))
                        continue;
                start = (i - 2) * Fs->cluster_size + Fs->clus_start;
                ret = force_read(Fs->Next, in_buf, 
                                                 sectorsToBytes((Stream_t*)Fs, start), in_len);
                if(ret < in_len ){
                        printf("Bad cluster %d found\n", i);
                        fatEncode((Fs_t*)Fs, i, 0xfff7);
                        continue;
                }
        }
        FREE(&Dir);
        exit(0);
}