From: alexander <alexander@...>
Date: 2007-01-27T04:48:13+09:00
Subject: problem with base64 decode

hi there,
i�m having a small problem with base64 decoding a string.
i�m porting a php script over to ruby and the decoding gives me
different results in ruby and in php. the problem is that the php
results works for the processing i do afterwards while the ruby version
doesn�t.
here�s the scripts in question:

php:
<?

        $bytes = file_get_contents("test.rgb");
        $bitmap = base64_decode($bytes);

        $header = "";
        $header .= "\xFF\xFE";
        $header .= pack("n2",120,97);
        $header .= "\x01";
        $header .= "\xFF\xFF\xFF\xFF";

        $header .= $bitmap;

        file_put_contents("test_php.gd",$header);
?>

ruby:
require 'rubygems'
require 'fileutils'
require 'base64'

all_bytes = Base64.decode64(IO.read("test.rgb"))

bitmap = "\xFF\xFE"
bitmap << [120,97].pack("n2")
bitmap << "\x01"
bitmap << "\xFF\xFF\xFF\xFF"
bitmap << all_bytes

File.new("test_ruby.gd","w").puts(bitmap)

the ruby version is one byte shorter.

i�m probably missing something rather obvious here, but any pointers to
how i can make the ruby output be like the php output would be greatly
appreciated :)

i�ve uploaded the test.rgb file i�m using to here:

http://rss.fork.de/test.rgb if that�s even needed :)

thanks a lot,

alexander