manpages.info - online man pages   

Linux man pages : shutdown (2)
SHUTDOWN(2)		   Linux Programmer's Manual		   SHUTDOWN(2)

NAME

shutdown - shut down part of a full-duplex connection

SYNOPSIS

#include <sys/socket.h> int shutdown(int s, int 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 SHUT_RD, further receptions will be disallowed. If how is SHUT_WR, further transmis- sions will be disallowed. If how is SHUT_RDWR, further receptions and transmissions will be disallowed.

RETURN VALUE

On success, zero is returned. On error, -1 is returned, and errno is set appropriately.

ERRORS

EBADF s is not a valid descriptor. ENOTSOCK s is a file, not a socket. ENOTCONN The specified socket is not connected.

NOTES

The constants SHUT_RD, SHUT_WR, SHUT_RDWR have the value 0, 1, 2, respectively, and are defined in <sys/socket.h> since glibc-2.1.91.

CONFORMING TO

4.4BSD (the shutdown function call first appeared in 4.2BSD).

SEE ALSO

connect(2), socket(2) BSD Man Page 1993-07-24 SHUTDOWN(2)