Dont use ipv6 sockets for unconnected udp on freebsd

git-svn-id: file:///home/svn/framework3/trunk@5278 4d416f70-5f16-0410-b530-b9f4589650da

lib/rex/compat.rb

@@ -30,6 +30,11 @@ def self.is_linux
 	(RUBY_PLATFORM =~ /linux/) ? true : false
 end
 
+
+def self.is_freebsd
+	(RUBY_PLATFORM =~ /freebsd/) ? true : false
+end
+
 def self.open_browser(url='http://metasploit.com/')
 	case RUBY_PLATFORM
 	when /mswin32/

lib/rex/socket/comm/local.rb

@@ -48,7 +48,11 @@ class Rex::Socket::Comm::Local
 
 			# Force IPv6 mode for non-connected UDP sockets
 			if (type == ::Socket::SOCK_DGRAM and not param.peerhost)
-				usev6 = true
+				# FreeBSD allows IPv6 socket creation, but throws an error on sendto()
+				
+				if (not Rex::Compat.is_freebsd())
+					usev6 = true
+				end
 			end
 		
 			local = Rex::Socket.resolv_nbo(param.localhost) if param.localhost