contrib/lar/lar.pl

   1 #!/usr/bin/perl
   2
   3 use strict;
   4
   5 @ARGV || die "Usage: $0 <file1> <file2> ... <fileN>\n";
   6
   7 my @index;
   8 my $offset = 0;
   9
  10 foreach my $file ( @ARGV )
  11 {
  12         if( -f $file && open F, "< $file" )
  13         {
  14                 warn sprintf "Member at 0x%08X\n", $offset;
  15                 push @index, [ ];
  16
  17                 my $size = length $file;
  18
  19                 print $file;
  20                 print "\0" x ( $size % 4 );
  21
  22                 $index[-1][0] = $offset;
  23                 $index[-1][1] = $size;
  24                 $index[-1][2] = $offset + $size + ( $size % 4 );
  25
  26
  27                 $size = 0;
  28                 while( read F, my $buffer, 4096 ) {
  29                         $size += length $buffer;
  30                         print $buffer;
  31                 }
  32                 print "\0" x ( $size % 4 );
  33
  34                 $index[-1][3] = $size;
  35                 $offset = $index[-1][2] + $size + ( $size % 4 );
  36
  37                 close F;
  38         }
  39 }
  40
  41
  42 foreach my $file ( @index )
  43 {
  44         warn sprintf "Index: 0x%08X 0x%08X 0x%08X 0x%08X\n", $file->[0], $file->[1], $file->[2], $file->[3];
  45         print pack "NNNNnn", $file->[0], $file->[1], $file->[2], $file->[3], 0x0000, 0x0000;
  46 }
  47
  48 warn sprintf "Index at 0x%08X, length 0x%08X\n", $offset, @index * 20;
  49 print pack "N", $offset;
  50