From: Dominik Werder <dwerder@...>
Date: 2005-01-29T19:55:51+09:00
Subject: Re: Gnupg and ruby

I think I found my problem..
I assumed that gpg expects the data on the command-fd but that seems to be  
wrong. If I use stdin of the gpg process to write my plaintext it works  
and I get these error codes I was looking for, here's my code:

At the moment it encrypts to the default receiver specified in my gpg  
options file, therefore no -r switch for the gpg command..


require 'open3'
msg=<<EOS
A little test message..
EOS
ii,i=IO.pipe # commands to gpg
o,oo=IO.pipe # status and data from gpg
e,ee=IO.pipe # errors from gpg
cmd="gpg --no-tty --status-fd #{oo.fileno} --logger-fd #{ee.fileno} "+
	"--command-fd #{ii.fileno} -ea"
puts cmd
iii,ooo,eee = Open3.popen3 cmd
success=false
iii.puts msg
iii.close
require 'timeout'
begin
	Timeout::timeout 4 do
		o.each do |s|
			puts "Out: #{s}"
			if s=~/END_ENCRYPTION/
				success=true
				break
			elsif s=~/NODATA/
				break
			end
		end
		ooo.each do |s|
			puts "OOOut: #{s}"
		end
	end
rescue Timeout::Error=>e
	puts 'Encryption timeout'
end
puts success ? 'Decryption OK' : 'Decryption failed'