UNIX Socket FAQ

Loco

Administrator

From: Colombia

Registered: 2002-06-12

Posts: 351

Re: 2 - Questions regarding Clients & Servers (TCP/SOCK_STRE

[size=6]2 - Questions regarding both Clients and Servers (TCP/SOCK_STREAM) [/size]

[*]How can I tell when a socket is closed on the other end?
[*]What's with the second parameter in bind()?
[*]How do I get the port number for a given service?
[*]If bind() fails, what should I do with the socket descriptor?
[*]How do I properly close a socket?
[*]When should I use shutdown()?
[*]Please explain the TIME_WAIT state.
[*]Why does it take so long to detect that the peer died?
[*]What are the pros/cons of select(), non-blocking I/O and SIGIO?
[*]Why do I get EPROTO from read()?
[*]How can I force a socket to send the data in its buffer?
[*]Where can I get a library for programming sockets?
[*]How come select says there is data, but read returns zero?
[*]Whats the difference between select() and poll()?
[*]How do I send [this] over a socket?
[*]How do I use TCP_NODELAY?
[*]What exactly does the Nagle algorithm do?
[*]What is the difference between read() and recv()?
[*]I see that send()/write() can generate SIGPIPE. Is there any advantage to handling the signal, rather than just ignoring it and checking for the EPIPE error?
[*]After the chroot(), calls to socket() are failing. Why?
[*]Why do I keep getting EINTR from the socket calls?
[*]When will my application receive SIGPIPE?
[*]What are socket exceptions? What is out-of-band data?
[*]How can I find the full hostname (FQDN) of the system I'm running on?
[*]How do I monitor the activity of sockets?