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shutdown

man page of shutdown

shutdown: shut down part of a full-duplex connection

NAME

shutdown - shut down part of a full-duplex connection
SYNOPSIS
#include <sys/socket.h> int shutdown(int sockfd, int how);
DESCRIPTION
The shutdown() call causes all or part of a full-duplex connection on the socket associated with sockfd to be shut down. If how is SHUT_RD, further receptions will be disallowed. If how is SHUT_WR, further transmissions 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 sockfd is not a valid descriptor. ENOTCONN The specified socket is not connected. ENOTSOCK sockfd is a file, not a socket.

CONFORMING TO

POSIX.1-2001, 4.4BSD (the shutdown() function call first appeared in 4.2BSD).

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.
SEE ALSO
connect(2), socket(2), socket(7)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at //www.kernel.org/doc/man-pages/. SHUTDOWN(2)
 
 
 

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