contrib/perlbarry/misc/split-jpeg

   1 #!/usr/bin/perl
   2
   3 # split-jpeg version 0.1
   4
   5 # Copyright (C) 2008, ashley willis <barry@venamous.net>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14 # or FITNESS FOR A PARTICULAR PURPOSE.
  15 #
  16 # See the GNU General Public License in the COPYING file at the
  17 # root directory of this project for more details.
  18
  19 # takes resulting files of "./convert-dumps Content_Store" and outputs any
  20 # jpeg files into current directory, as well as header into a separate file.
  21 # the file "Content_Store" is created by
  22 # "btool -d 'Content Store' > Content_Store".
  23
  24 $HEAD = 0;
  25
  26 foreach $file (@ARGV) {
  27   open(IN, "$file");
  28   $jpeg = 0;
  29   read(IN, $head, 3);
  30   if ($head =~ /^!\0\x01$/) {       # barrybackup data, ipd2tgz
  31     $header = $head;
  32   }
  33   else {
  34     read(IN, $header, 15);
  35     $header = $head . $header;
  36   }
  37
  38   ($name, $remainder) = split(/\0/, <IN>, 2);
  39   ($name =~ /\.jpg$/) or next;
  40
  41   $remainder = "