Crash in extract_mp4

[shao.lo]

I recently used your tool for the first time after accidentally deleting some mp4 files. When I ran the tool, it would crash after a little while. I build the source and tried again. It was crashing with a buffer over run in extract_mp4. Looking at the gdb output I saw it had run the loop too long. Not being familiar with code, I'm not sure how that happened, but I was able to fix the crash and get a complete run by adding the following to the while(1) loop.

if(foundat-buf >= buflen)
        {
            printf("Something wrong....overrunning search buffer\n");
            return NULL;
        }
I'm not sure if that is the correct way to handle it, probably not since the files I was looking for did not show up in the final output.

[Aaron Rainbolt (arraybolt3)]

First of all, you might try using PhotoRec to recover the files. The less you use the computer after deleting the files, the better.

Thank you for this bug report!