Re: about Winsock send() and recv()

I'm very new on C and Winsock programming (i did some VB with winsock
control).
I've started with a little app. It works pretty well using an ECHO
server: i send a message, and i receive the same. Cool.
But, when i connect with a SMTP, POP or any other service, i receive a
first message, and then it hangs up.

My code:

/******* part: LOOP */
int con = connect(recvskt, (SOCKADDR*) &RetSocket,
sizeof(RetSocket));
if(con != SOCKET_ERROR){
do{
sendm(recvskt);
if(recvm(recvskt) == 0){printf("Block.");}
}while(rcv_b != SOCKET_ERROR);
}else{exit;}