backported from CVS_HEAD

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@7539 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Sun Dec 12 20:06:38 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+
+	* lib/drb/drb.rb: backported from CVS HEAD.
+
 Sun Dec 12 10:35:10 2004  Dave Thomas  <dave@pragprog.com>
 
 	* lib/rdoc/generators/template/html/html.rb (RDoc::Page): Don't

lib/drb/drb.rb

@@ -461,7 +461,7 @@ module DRb
     # when the unmarshalling failed.  It is used to determine the
     # name of the unmarshalled object.
     def initialize(err, buf)
-      case err
+      case err.to_s
       when /uninitialized constant (\S+)/
 	@name = $1
       when /undefined class\/module (\S+)/
@@ -573,7 +573,7 @@ module DRb
       rescue
         raise(DRbConnError, $!.message, $!.backtrace)
       end
-      raise(DRbConnError, 'connection closed') if sz.nil?
+      raise(DRbConnError, 'connection closed') if str.nil?
       raise(DRbConnError, 'premature marshal format(can\'t read)') if str.size < sz
       begin
 	Marshal::load(str)