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DAK

KwikNet TCP/IP Sockets

kn_close kn_close

Purpose Close a Socket

Used by

n Task o ISP o Timer Procedure o Restart Procedure o Exit Procedure

Setup Prototype is in file KN_SOCK.H.

#include "KN_SOCK.H"

int kn_close(int s);

Description S is a socket descriptor identifying the socket to be closed.

When a socket is closed, associated naming information and queued

data are discarded.

Returns If successful, a value of 0 is returned.

On failure, the error status -1 is returned.

The error indicator for socket s is set to define the reason for failure. Use

kn_errno() to retrieve the error code.

EBADF The socket descriptor s is invalid.

EALREADY The socket is already in the process of closing.

ETIMEDOUT The socket's linger option was enabled with a

non-zero timeout value. The linger timeout expired

before the TCP close handshake with the remote host

could be completed (blocking TCP socket only).

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