NAME

shutdown − shut down part of a full-duplex connection

SYNOPSIS

cc [ flag ... ] file ... −lsocket −lnsl [ library ... ]

int shutdown(int s, int how);

MT-LEVEL

Unsafe

DESCRIPTION

The shutdown() call shuts down all or part of a full-duplex connection on the socket associated with s. 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. 

RETURN VALUES

A 0 is returned if the call succeeds, −1 if it fails. 

ERRORS

The call succeeds unless:

EBADF s is not a valid file descriptor. 

ENOMEM There was insufficient user memory available for the operation to complete. 

ENOSR There were insufficient STREAMS resources available for the operation to complete. 

ENOTCONN The specified socket is not connected. 

ENOTSOCK s is not a socket. 

SEE ALSO

connect(3N), socket(3N)

NOTES

The how values should be defined constants. 

This interface is unsafe in multithreaded applications.  Unsafe interfaces should be called only from the main thread. 
 

SunOS 5.2  —  Last change: 22 Jan 1993