1 /* Copyright (C) 1992, 1994 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 Cambridge, MA 02139, USA. */
21 #include <sys/socket.h>
23 #include <hurd/socket.h>
28 /* Create two new sockets, of type TYPE in domain DOMAIN and using
29 protocol PROTOCOL, which are connected to each other, and put file
30 descriptors for them in FDS[0] and FDS[1]. If PROTOCOL is zero,
31 one will be chosen automatically. Returns 0 on success, -1 for errors. */
33 DEFUN(socketpair
, (domain
, type
, protocol
, fds
),
34 int domain AND
enum __socket_type type AND
int protocol AND
int fds
[2])
37 socket_t server
, sock1
, sock2
;
41 return __hurd_fail (EINVAL
);
43 /* Find the domain's socket server. */
44 server
= _hurd_socket_server (domain
, 0);
45 if (server
== MACH_PORT_NULL
)
48 /* Create two sockets and connect them together. */
50 err
= __socket_create (server
, type
, protocol
, &sock1
);
51 if (err
== MACH_SEND_INVALID_DEST
|| err
== MIG_SERVER_DIED
)
53 /* On the first use of the socket server during the operation,
54 allow for the old server port dying. */
55 server
= _hurd_socket_server (domain
, 1);
56 if (server
== MACH_PORT_NULL
)
58 err
= __socket_create (server
, type
, protocol
, &sock1
);
61 return __hurd_fail (err
);
62 if (err
= __socket_create (server
, type
, protocol
, &sock2
))
64 __mach_port_deallocate (__mach_task_self (), sock1
);
65 return __hurd_fail (err
);
67 if (err
= __socket_connect2 (sock1
, sock2
))
69 __mach_port_deallocate (__mach_task_self (), sock1
);
70 __mach_port_deallocate (__mach_task_self (), sock2
);
71 return __hurd_fail (err
);
74 /* Put the sockets into file descriptors. */
76 d1
= _hurd_intern_fd (sock1
, O_IGNORE_CTTY
, 1);
79 __mach_port_deallocate (__mach_task_self (), sock2
);
82 d2
= _hurd_intern_fd (sock2
, O_IGNORE_CTTY
, 1);
87 return __hurd_fail (err
);