🐛 fix bug in recvfrom

module/libsock.nas

@@ -76,8 +76,9 @@ var socket=func(){
         MSG_OOB:0x1,
         MSG_PEEK:0x2,
         MSG_DONTROUTE:0x4,
+        MSG_DONTWAIT:0x40,
 
-        socket:func(af,type,proto){
+        socket:func(af,type,proto = 0){
             return invoke_iii(sock,af,type,proto);
         },
         closesocket:func(sd){

module/nasocket.cpp

@@ -231,6 +231,7 @@ var nas_recvfrom(var* args, usize size, gc* ngc) {
     hash["str"] = ngc->newstr(buf);
     delete[] buf;
     hash["fromip"] = ngc->newstr(inet_ntoa(addr.sin_addr));
+    hash["port"] = var::num(ntohs(addr.sin_port));
     ngc->temp = nil;
     return res;
 }