Merge branch 'master' of https://github.com/SametDEDE/CocoaAsyncSocket …

…into ipv6

Credit to @Smeegol: #429 (comment)

Confirmed as bug in getaddrinfo by Apple staff (rdar://26365575): https://forums.developer.apple.com/thread/47312#138895

Source/GCD/GCDAsyncSocket.m

@@ -8155,9 +8155,18 @@ + (NSMutableArray *)lookupHost:(NSString *)host port:(uint16_t)port error:(NSErr
 				}
 				else if (res->ai_family == AF_INET6)
 				{
+					// Fixes connection issues with IPv6
+					// https://github.com/robbiehanson/CocoaAsyncSocket/issues/429#issuecomment-222477158
+
 					// Found IPv6 address.
 					// Wrap the native address structure, and add to results.
 
+					struct sockaddr_in6 *sockaddr = (struct sockaddr_in6 *)res->ai_addr;
+					in_port_t *portPtr = &sockaddr->sin6_port;
+					if ((portPtr != NULL) && (*portPtr == 0)) {
+					        *portPtr = htons(port);
+					}
+
 					NSData *address6 = [NSData dataWithBytes:res->ai_addr length:res->ai_addrlen];
 					[addresses addObject:address6];
 				}