o protocol.rb: Protocol#start yields self

o  smtp.rb:  use Socket.gethostname to get localhost name
p  pop.rb:  use MD5#hexdigest


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@698 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/net/smtp.rb b/lib/net/smtp.rb
index fe3dd9e1b2..35e9118df8 100644
--- a/lib/net/smtp.rb
+++ b/lib/net/smtp.rb
@@ -109,9 +109,10 @@ Net::Protocol
     def do_start( helodom = nil,
                   user = nil, secret = nil, authtype = nil )
       unless helodom then
-        helodom = ENV['HOSTNAME'] || ENV['HOST']
+        helodom = ::Socket.gethostname
         unless helodom then
-          raise ArgumentError, "cannot get hostname"
+          raise ArgumentError,
+            "cannot get localhost name; try 'smtp.start(local_host_name)'"
         end
       end