* ext/socket/socket.c (sockaddr_len): return the shortest length for

unknown socket address.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39941 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Tue Mar 26 22:31:10 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (sockaddr_len): return the shortest length for
+	  unknown socket address.
+
 Tue Mar 26 22:14:46 2013  Tanaka Akira  <akr@fsij.org>
 
 	* thread.c (double2timeval): convert the infinity to TIME_MAX to avoid

ext/socket/socket.c

@@ -1512,7 +1512,7 @@ sockaddr_len(struct sockaddr *addr)
 #endif
 
       default:
-        return (socklen_t)sizeof(struct sockaddr_in);
+        return (socklen_t)(offsetof(struct sockaddr, sa_family) + sizeof(addr->sa_family));
     }
 }