shutdown() - shut down part of a full-duplex connection
#include <sys/socket.h>
int shutdown (int s, int how)
The shutdown(2) 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 will be disallowed. If how is 1, further sends will be disallowed. If how is 2, further sends and receives will be disallowed.
A 0 is returned if the call succeeds, -1 if it fails.
The call succeeds unless:
connect(2)
socket(2)