shutdown()

Updated: April 19, 2023

Shut down part of a full-duplex connection

Synopsis:

#include <sys/socket.h>

int shutdown( int s, 
              int how );

Arguments:

s
A descriptor for the socket, as returned by socket().
how
How you want to shut down the connection:
If how is: The TCP/IP manager won't allow:
SHUT_RD Further receives
SHUT_WR Further sends
SHUT_RDWR Further sends and receives

Library:

libsocket

Use the -l socket option to qcc to link against this library.

Description:

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

Returns:

0
Success.
-1
An error occurred (errno is set).

Errors:

EBADF
Invalid descriptor s.

Classification:

POSIX 1003.1

Safety:  
Cancellation point No
Interrupt handler No
Signal handler Yes
Thread Yes