Fix DNS lookup

Author: arves100

common/gsPlatformUtil.c

@@ -173,7 +173,7 @@ static void * gsiResolveHostnameThread(void * arg)
 SocketStartUp();
 
 memset(&hints, 0, sizeof(struct addrinfo));
-hints.ai_family = PF_UNSPEC;
+hints.ai_family = AF_INET;
 hints.ai_socktype = SOCK_STREAM;
 
 // DNS lookup (works with pthreads)
@@ -182,7 +182,7 @@ static void * gsiResolveHostnameThread(void * arg)
 if (!error)
 {
 // first convert to character string for debug output
-ip = inet_ntoa((*(struct sockaddr_in*)result->ai_addr).sin_addr);
+ip = inet_ntoa( ((struct sockaddr_in*)result->ai_addr)->sin_addr);
 
 gsDebugFormat(GSIDebugCat_HTTP, GSIDebugType_State, GSIDebugLevel_Comment,
 "Resolved host '%s' to ip '%s'\n", handle->hostname, ip);
@@ -318,9 +318,13 @@ unsigned int gsiGetResolvedIP(GSIResolveHostnameHandle handle)
 // free resources
 gsiCleanupThread(handle->threadID);
 gsifree(handle->hostname);
+ handle->hostname = NULL;
 gsifree(handle);
  handle = NULL;
 
+ if (!ip)
+ ip = GSI_ERROR_RESOLVING_HOSTNAME;
+
 return ip;
 }