use closesocket on sockets.. not close

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4015 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/iax/src/iax.c

@@ -949,7 +949,7 @@ int iax_init(char *ip, int preferredportno)
 #ifdef	WIN32
 	    flags = 1;
 	    if (ioctlsocket(netfd,FIONBIO,(unsigned long *) &flags)) {
-		    _close(netfd);
+		    closesocket(netfd);
 		    netfd = -1;
 		    DEBU(G "Unable to set non-blocking mode.");
 		    IAXERROR "Unable to set non-blocking mode.");