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Annotation of 43BSDReno/lib/libc/sys/socketpair.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"    @(#)socketpair.2        6.3 (Berkeley) 6/23/90
        !            19: .\"
        !            20: .TH SOCKETPAIR 2 "June 23, 1990"
        !            21: .UC 5
        !            22: .SH NAME
        !            23: socketpair \- create a pair of connected sockets
        !            24: .SH SYNOPSIS
        !            25: .nf
        !            26: .ft B
        !            27: #include <sys/types.h>
        !            28: #include <sys/socket.h>
        !            29: .PP
        !            30: .ft B
        !            31: socketpair(d, type, protocol, sv)
        !            32: int d, type, protocol;
        !            33: int sv[2];
        !            34: .fi
        !            35: .SH DESCRIPTION
        !            36: The
        !            37: .I socketpair
        !            38: call creates an unnamed pair of connected sockets in
        !            39: the specified domain
        !            40: .IR d ,
        !            41: of the specified
        !            42: .IR type ,
        !            43: and using the optionally specified
        !            44: .IR protocol .
        !            45: The descriptors used in referencing the new sockets
        !            46: are returned in
        !            47: .IR sv [0]
        !            48: and
        !            49: .IR sv [1].
        !            50: The two sockets are indistinguishable.
        !            51: .SH DIAGNOSTICS
        !            52: A 0 is returned if the call succeeds, \-1 if it fails.
        !            53: .SH ERRORS
        !            54: The call succeeds unless:
        !            55: .TP 20
        !            56: [EMFILE]
        !            57: Too many descriptors are in use by this process.
        !            58: .TP 20
        !            59: [EAFNOSUPPORT]
        !            60: The specified address family is not supported on this machine.
        !            61: .TP 20
        !            62: [EPROTONOSUPPORT]
        !            63: The specified protocol is not supported on this machine.
        !            64: .TP 20
        !            65: [EOPNOSUPPORT]
        !            66: The specified protocol does not support creation of socket pairs.
        !            67: .TP 20
        !            68: [EFAULT]
        !            69: The address \fIsv\fP does not specify a valid part of the
        !            70: process address space.
        !            71: .SH "SEE ALSO"
        !            72: read(2), write(2), pipe(2)
        !            73: .SH BUGS
        !            74: This call is currently implemented only for the UNIX domain.

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