Make ACL::ACLEntry not suppress IPAddr::InvalidPrefixError

This is because it would be a user error because a pattern containing
a slash shouldn't be a host name pattern but an IP address pattern.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60249 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/drb/acl.rb b/lib/drb/acl.rb
index 7b50644fe4..b004656f09 100644
--- a/lib/drb/acl.rb
+++ b/lib/drb/acl.rb
@@ -49,6 +49,9 @@ class ACL
     # +str+ may be "*" or "all" to match any address, an IP address string
     # to match a specific address, an IP address mask per IPAddr, or one
     # containing "*" to match part of an IPv4 address.
+    #
+    # IPAddr::InvalidPrefixError may be raised when an IP network
+    # address with an invalid netmask/prefix is given.
 
     def initialize(str)
       if str == '*' or str == 'all'
@@ -58,6 +61,10 @@ class ACL
       else
         begin
           @pat = [:ip, IPAddr.new(str)]
+        rescue IPAddr::InvalidPrefixError
+          # In this case, `str` shouldn't be a host name pattern
+          # because it contains a slash.
+          raise
         rescue ArgumentError
           @pat = [:name, dot_pat(str)]
         end