shutdown(2) — 4 BSD
NAME
shutdown − shut down part of a full-duplex connection
SYNOPSIS
int 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, then further receives will be disallowed. If how is 1, then further sends will be disallowed. If how is 2, then further sends and receives will be disallowed.
DIAGNOSTICS
A 0 is returned if the call succeeds, −1 if it fails.
ERRORS
The call succeeds unless:
[EBADF] S is not a valid descriptor.
[ENOTSOCK] S is a file, not a socket.
[ENOTCONN] The specified socket is not connected.
NOTE
This call is defined in the 88open Binary and Object Compatibility Standards’ Networking Supplements (BCSNS and OCSNS) for use in BCSNS/OCSNS compliant applications. OCSNS-defined functions may be accessed by passing OCS options to cc(1) and ld(1).
SEE ALSO
CX/UX Programmer’s Reference Manual