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sourceware.org Git - glibc.git/blob - socket/opensock.c
1 /* Copyright (C) 1999 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 Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the 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 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
19 #include <sys/socket.h>
20 #include <bits/libc-lock.h>
22 /* Return a socket of any type. The socket can be used in subsequent
23 ioctl calls to talk to the kernel. */
27 /* Cache the last AF that worked, to avoid many redundant calls to
29 static int sock_af
= -1;
31 __libc_lock_define_initialized (static, lock
);
35 fd
= __socket (sock_af
, SOCK_DGRAM
, 0);
40 __libc_lock_lock (lock
);
43 fd
= __socket (sock_af
, SOCK_DGRAM
, 0);
48 fd
= __socket (sock_af
= AF_INET
, SOCK_DGRAM
, 0);
52 fd
= __socket (sock_af
= AF_INET6
, SOCK_DGRAM
, 0);
56 fd
= __socket (sock_af
= AF_IPX
, SOCK_DGRAM
, 0);
60 fd
= __socket (sock_af
= AF_AX25
, SOCK_DGRAM
, 0);
64 fd
= __socket (sock_af
= AF_APPLETALK
, SOCK_DGRAM
, 0);
68 __libc_lock_unlock (lock
);
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