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/* Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <inline-syscall.h>
#include <sys/socket.h>
#include <unistd.h>
#include <errno.h>
#include <not-cancel.h>
extern int _so_socketpair (int fds[2]);
int
socketpair (domain, type, protocol, fds)
int domain;
int type;
int protocol;
int fds[2];
{
int sock0 = -1;
int sock1 = -1;
int res = -1;
if (fds == NULL)
{
__set_errno(EINVAL);
return -1;
}
/* create the pair of sockets */
sock0 = __socket (domain, type, protocol);
if (sock0 != -1)
{
sock1 = __socket (domain, type, protocol);
if(sock1 != -1)
{
fds[0] = sock0;
fds[1] = sock1;
res = _so_socketpair (fds);
if (res != -1)
{
/* check if new sockets were created */
if (fds[0] == sock0)
sock0 = -1;
if (fds[1] == sock1)
sock1 = -1;
}
}
}
/* close any sockets that were created by failed calls or duplicated */
if (sock0 != -1)
close_not_cancel_no_status (sock0);
if (sock1 != -1)
close_not_cancel_no_status (sock1);
return res;
}
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