shutdown(2)
Name
shutdown − shut down full-duplex connection
Syntax
shutdown(s, how)
int s, how;
Description
The shutdown call causes all or part of a full-duplex connection on the socket associated with s to be shut down. If how is 0, further receives are disallowed. If how is 1, further sends are disallowed. If how is 2, further sends and receives are disallowed.
Return Values
A zero (0) is returned if the call succeeds, −1 if it fails.
Diagnostics
The call succeeds unless:
[EBADF] The s argument is not a valid descriptor.
[ENOTSOCK] The s argument is a file, not a socket.
[ENOTCONN] The specified socket is not connected.