UDP socket - can both client and server recv and send Post: 302116835

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LEARN ABOUT NETBSD

shutdown

SHUTDOWN(2)						      BSD System Calls Manual						       SHUTDOWN(2)

NAME

     shutdown -- shut down part of a full-duplex connection

LIBRARY

     Standard C Library (libc, -lc)

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.  The how argument speci-
     fies which part of the connection will be shut down.  Permissible values are:

	   SHUT_RD	further receives will be disallowed.

	   SHUT_WR	further sends will be disallowed.

	   SHUT_RDWR	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 descriptor.

     [EINVAL]		The how argument is invalid.

     [ENOTCONN] 	The specified socket is not connected.

     [ENOTSOCK] 	s is a file, not a socket.

SEE ALSO

     connect(2), socket(2)

HISTORY

     The shutdown() function call appeared in 4.2BSD.  The how arguments used to be simply 0, 1, and 2, but now have named values as specified by
     X/Open Portability Guide Issue 4 (``XPG4'').

BSD
								  August 18, 2002							       BSD