Questions

Try answering these questions to test your knowledge on this chapter:

1. How can we tell whether the next call to recv() will block?
2. How can you ensure that select() doesn't block for longer than a specified time?
3. When we used our tcp_client program to connect to a web server, why did we need to send a blank line before the web server responded?
4. Does send() ever block?
5. How can we tell whether the socket has been disconnected by our peer?
6. Is data received by recv() always the same size as data sent with send()?
7. Consider the following code:

recv(socket_peer, buffer, 4096, 0);
printf(buffer);

What is wrong with it?
Also see what is wrong with this code:

recv(socket_peer, buffer, 4096, 0);
printf("%s", buffer);

The answers can be found in Appendix A, Answers to Questions.