shutdown - shut down part of a full-duplex connection
int shutdown(int s, int how);
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 will be disallowed. If how is 1, further sends will be disallowed.
If how is 2, further sends and receives will be disallowed.
On success, zero is returned. On error, -1 is returned, and errno is
EBADF s is not a valid descriptor.
ENOTSOCK [Toc] [Back]
s is a file, not a socket.
ENOTCONN [Toc] [Back]
The specified socket is not connected.
4.4BSD (the shutdown function call first appeared in 4.2BSD).
The numerical how flags should be replaced by the Single Unixmandated
SHUT_RD, SHUT_WR, and SHUT_RDWR flags.
BSD Man Page 1993-07-24 SHUTDOWN(2)
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