From d43a35d821f1e9a9dcb701ffab4cb5bc12d4006c Mon Sep 17 00:00:00 2001
From: Brian Gitonga Marete <marete@toshnix.com>
Date: Wed, 3 Jul 2013 11:31:17 -0400
Subject: [PATCH] openpgp: Add support for BZIP2-compressed data packets.

Tested using a variety of files encrypted with gpg and the
"--compress-algo BZIP2" gpg option.

R=golang-dev, bradfitz, agl
CC=golang-dev
https://golang.org/cl/10801043
---
 openpgp/packet/compressed.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/openpgp/packet/compressed.go b/openpgp/packet/compressed.go
index 816229e..deb3158 100644
--- a/openpgp/packet/compressed.go
+++ b/openpgp/packet/compressed.go
@@ -6,6 +6,7 @@ package packet
 
 import (
 	"code.google.com/p/go.crypto/openpgp/errors"
+	"compress/bzip2"
 	"compress/flate"
 	"compress/zlib"
 	"io"
@@ -30,6 +31,8 @@ func (c *Compressed) parse(r io.Reader) error {
 		c.Body = flate.NewReader(r)
 	case 2:
 		c.Body, err = zlib.NewReader(r)
+	case 3:
+		c.Body = bzip2.NewReader(r)
 	default:
 		err = errors.UnsupportedError("unknown compression algorithm: " + strconv.Itoa(int(buf[0])))
 	}