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RocketLink!--> Man page versions: OpenBSD FreeBSD NetBSD RedHat Others

SOCKETPAIR(2)             OpenBSD Programmer's Manual            SOCKETPAIR(2)

     socketpair - create a pair of connected sockets

     #include <sys/types.h>
     #include <sys/socket.h>

     socketpair(int d, int type, int protocol, int *sv);

     The socketpair() call creates an unnamed pair of connected sockets in the
     specified domain d, of the specified type, and using the optionally spec-
     ified protocol. The descriptors used in referencing the new sockets are
     returned in sv[0] and sv[1]. The two sockets are indistinguishable.

     A 0 is returned if the call succeeds, -1 if it fails.

     The call succeeds unless:

     [EMFILE]      Too many descriptors are in use by this process.

                   The specified address family is not supported on this ma-

                   The specified protocol is not supported on this machine.

     [EOPNOTSUPP]  The specified protocol does not support creation of socket

     [EFAULT]      The address sv does not specify a valid part of the process
                   address space.

     [ENFILE]      The system file table is full.

     pipe(2),  read(2),  write(2)

     This call is currently implemented only for the LOCAL domain.  Many oper-
     ating systems only accept a protocol of PF_UNSPEC, so that should be used
     instead of PF_LOCAL for maximal portability.

     The socketpair() function conforms to X/Open Portability Guide Issue 4.2

     The socketpair() function call appeared in 4.2BSD.

OpenBSD 2.6                      June 4, 1993                                1

Source: OpenBSD 2.6 man pages. Copyright: Portions are copyrighted by BERKELEY
SOFTWARE DESIGN, INC., The Regents of the University of California, Massachusetts
Institute of Technology, Free Software Foundation, FreeBSD Inc., and others.

(Corrections, notes, and links courtesy of RocketAware.com)

[Detailed Topics]

[Overview Topics]

Up to: Local Process Communication - Communication between processes running on the same system. Synchronization. File locking. Signals. FIFOs, pipes, et al

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