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SOCKETPAIR(2)                 System Calls Manual                SOCKETPAIR(2)

NAME
       socketpair - creates a pair of connected sockets.

SYNOPSIS
       #include <sys/socket.h>

       int socketpair(int domain, int type, int protocol, int sv[2]);

DESCRIPTION
       socketpair() creates two connected sockets of the specified type in the
       specified domain using  the  specified  protocol  and  stores  the  two
       resulting socket descriptors in sv[2].

RETURN VALUES
       On  success, this function returns 0, and sv[2] is set to the two newly
       created socket descriptors. On error, -1 is returned and errno is set.

ERRORS
       [EAFNOSUPPORT] The domain is not supported.

       [EPROTOTYPE]   The protocol is not supported by the domain.

       [EPROTONOSUPPORT]
                      The protocol is not supported by the type.

       [EINVAL]       The pair of sockets aren't in a valid state or  are  not
                      connection oriented sockets.

       [EPERM]        The  user  ID,  group  ID,  and  process ID of the first
                      socket doesn't match that of the second.

NOTES
       This function is only implemented for unix domain  sockets.  Therefore,
       the only valid value for domain is AF_UNIX

SEE ALSO
       socket(2), unix(8)

HISTORY
       This function first appeared in Minix 3.1.8.

                                                                 SOCKETPAIR(2)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | NOTES | SEE ALSO | HISTORY