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SubjectRe: Fwd: File system corruption
Date
I have put the gzipped image here if anyone wants to take a peek :)
size==348k, unzips to ~64Mb

http://home.iprimus.com.au/krushka/img.gz

On Tue, 7 Jan 2003 10:08 pm, you wrote:
> On Mon, Jan 06, 2003 at 03:06:20PM +0000, Alan Cox wrote:
> > Might be interesting to see what it does given a totally not FAT
> > environment (eg fill the disk start to end with each sector filled
> > with its sector number repeatedly) and see what comes out the other
> > end.
>
> How about the following program to do this.
>
> Roger.
>
>
> /* Written By R.E.Wolff@BitWizard.nl
> *
> * This program is distributed under GPL. */
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <unistd.h>
> #include <string.h>
>
> int main (int argc, char **argv)
> {
> int i;
> int ascii = 0;
> int size = 512;
> long long secno;
> char *buf;
> int s;
>
> for (i=1;i<argc;i++) {
> if (strcmp (argv[i], "-a") == 0) {
> ascii = 1;
> }
> if (strcmp (argv[i], "-b") == 0) {
> ascii = 0;
> }
>
> if (strncmp (argv[i], "-s", 2) == 0) {
> if (strlen (argv[i]) > 2)
> size = atoi (argv[i]+2);
> else
> /* Sorry. Will crash if you specify -s as the last argument */
> size = atoi (argv[++i]);
> }
> }
>
> buf = malloc (size + 16);
>
> if (!buf) {
> fprintf (stderr, "Can't allocate buffer.\n");
> exit (1);
> }
>
> secno = 0;
> while (1) {
> if (ascii) {
> sprintf (buf, "%lld\n", secno);
> s = strlen (buf);
> for (i=s;i<size;i+=s)
> sprintf (buf+i, "%lld\n", secno);
> } else {
> for (i=0;i<size;i+=sizeof (long long))
> *(long long *)(buf+i) = secno;
> }
> if (write (1, buf, size) < 0)
> break;
> secno++;
> }
> exit (0);
> }
-
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