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All of my program seems to be functioning but my JPEG images are completely blank. I'm not sure, but I think the error is somewhere in this code:

if ((buffer[0] == 0xFF) && (buffer[1] == 0xD8) && (buffer[2] == 0xFF) && (buffer[3] == 0xE0))
{
    fclose(filer);

    sprintf(fn, "%03d.jpg", f);
    filer = fopen(fn, "a");

    f++, x++;

    printf("image %s\n", fn);
    printf("iteration %i\n", f + 1);
}

The files that were created are each 0 bytes in size.

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    Remember that the last byte in the 4 byte sequence that identifies a jpg can not only be 0xe0 but also 0xe1. – user103853 Aug 18 '14 at 23:29
  • Firstly, pseudocode is preferred as per the academic honesty rules; please replace it accordingly. Secondly, without more information about what you've tried, and what other functions do its hard to help you. I would suggest though that you set up just one jpg in your program, then write a little loop that gathers in data and writes it into that one jpg file once it finds a jpg in raw and stops when it finds another. Then check the output and this will give you a better idea if the problem is with creating jpg files, or collecting the data. – user103853 Aug 18 '14 at 23:35
  • @chris the reason I did not use pseudocode was becuase I was pretty sure that the error was in the syntax and not in the idea. – user1475 Aug 18 '14 at 23:41
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Turns out that I just was fwriting to the input file! Thanks everyone for all your help!

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