Copyright (c) 1983 The Regents of the University of California.
All rights reserved.
%sccs.include.redist.man%
@(#)socketpair.2 6.3 (Berkeley) 06/23/90
All rights reserved.
%sccs.include.redist.man%
@(#)socketpair.2 6.3 (Berkeley) 06/23/90
SOCKETPAIR 2 ""
C 5 NAME
socketpair - create a pair of connected sockets
SYNOPSIS
#include <sys/types.h> #include <sys/socket.h>socketpair(d, type, protocol, sv) int d, type, protocol; int sv[2];
DESCRIPTION
The
socketpair call creates an unnamed pair of connected sockets in
the specified domain
d , of the specified
type , and using the optionally specified
protocol . The descriptors used in referencing the new sockets
are returned in
sv [0] and
sv [1]. The two sockets are indistinguishable.
DIAGNOSTICS
A 0 is returned if the call succeeds, -1 if it fails.
ERRORS
The call succeeds unless:
20 [EMFILE] Too many descriptors are in use by this process.
20 [EAFNOSUPPORT] The specified address family is not supported on this machine.
20 [EPROTONOSUPPORT] The specified protocol is not supported on this machine.
20 [EOPNOSUPPORT] The specified protocol does not support creation of socket pairs.
20 [EFAULT] The address sv does not specify a valid part of the process address space.
"SEE ALSO"
read(2), write(2), pipe(2)
BUGS
This call is currently implemented only for the UNIX domain.