libc/inet/opensock.c

   1 /* Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  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/>.  */
  17
  18 #include <sys/socket.h>
  19 #include <bits/kernel-features.h>
  20
  21 /* Return a socket of any type.  The socket can be used in subsequent
  22    ioctl calls to talk to the kernel.  */
  23 int __opensock(void) attribute_hidden;
  24 int
  25 __opensock(void)
  26 {
  27         int fd = -1;
  28 #ifdef __UCLIBC_HAS_IPV6__
  29         fd = socket(AF_INET6, SOCK_DGRAM, 0);
  30 #endif
  31 #ifdef __UCLIBC_HAS_IPV4__
  32         if (fd < 0)
  33                 fd = socket(AF_INET, SOCK_DGRAM, 0);
  34 #endif
  35         return fd;
  36 }