Fix typos; move stray paragraph to Feature Test Macros.
[glibc/history.git] / sysdeps / mach / hurd / socketpair.c
blobc97480ac3d2ec0b2cabb1b67199ee929f3c63e3d
1 /* Copyright (C) 1992 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. */
19 #include <ansidecl.h>
20 #include <errno.h>
21 #include <sys/socket.h>
22 #include <hurd.h>
24 /* Create two new sockets, of type TYPE in domain DOMAIN and using
25 protocol PROTOCOL, which are connected to each other, and put file
26 descriptors for them in FDS[0] and FDS[1]. If PROTOCOL is zero,
27 one will be chosen automatically. Returns 0 on success, -1 for errors. */
28 int
29 DEFUN(socketpair, (domain, type, protocol, fds),
30 int domain AND enum __socket_type type AND int protocol AND int fds[2])
32 error_t err;
33 int d1, d2;
35 d1 = socket (domain, type, protocol);
36 if (d1 < 0)
37 return -1;
38 d2 = socket (domain, type, protocol);
39 if (d2 < 0)
41 err = errno;
42 (void) close (d1);
43 return __hurd_fail (err);
46 if (err = _HURD_DPORT_USE
47 (d1,
48 ({ socket_t sock1 = port;
49 _HURD_DPORT_USE (d2, __socket_connect2 (sock1, port)) })))
51 close (d1);
52 close (d2);
53 return __hurd_fail (err);
56 fds[0] = d1;
57 fds[2] = d2;
58 return 0;