Even for UDP sockets, we should handle EAGAIN errors because it can happen.....

Even for UDP sockets, we should handle EAGAIN errors because it can happen.. Apparently recvfrom can return EAGAIN on udp sockets if for example there's a bad checksum in the packet or some other similar error

socket/udp-bsd.c

@@ -160,6 +160,15 @@ socket_recv (NiceSocket *sock, NiceAddress *from, guint len, gchar *buf)
   recvd = recvfrom (sock->fileno, buf, len, 0, (struct sockaddr *) &sa,
       &from_len);
 
+  if (recvd < 0) {
+#ifdef G_OS_WIN32
+    if (WSAGetLastError () == WSAEWOULDBLOCK)
+#else
+    if (errno == EAGAIN || errno == EWOULDBLOCK)
+#endif
+      return 0;
+  }
+
   if (recvd > 0)
     nice_address_set_from_sockaddr (from, (struct sockaddr *)&sa);