I rarely find myself working so close to the metal with perl, but I'd like to be able to read a binary file in and switch some of the bytes. My problem seems to lie in the assignment or the conditional I've implemented. There just seems to be so much abstraction in a higher level language like perl. 
#!/usr/bin/perl
use strict;

my IN, "<infile.dat";
my OUT, ">outfile.dat";
my $buffer;
$|=1;

while(read(IN, $buffer, 1)){
     if($buffer == hex('0x00')){
          $buffer = hex('0x17');}
     print OUT $buffer;
}
This matches about 90% of the bytes, but I know it's catching the conditional way too often. Also, it actually just prints the hex number and not the binary data. I know I'm fubar'ing the handling somehow; just don't know how :P

In reply to Binary conditionals by bunnym4n

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