From f720d3d2120ebb9a87af7c10e0939fb9dfee20ef Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 29 Oct 1999 21:40:21 +0000 Subject: Update. 1999-10-27 Andreas Jaeger * sysdeps/generic/ifreq.h: New file. * resolv/res_hconf.c: Add missing includes to get all prototypes. (_res_hconf_reorder_addrs): Rewrite. This never worked before. Reported by John DiMarco . (_res_hconf_reorder_addrs): Made thread safe. (free_mem): New function, needed for malloc debugging. 1999-10-29 Andreas Jaeger * sysdeps/unix/sysv/linux/if_index.c (opensock): Move function to ... * sysdeps/generic/opensock.c (__opensock): ...here in a new file. * sysdeps/unix/sysv/linux/if_index.c: Change all callers of opensock to use __opensock. * socket/Makefile (routines): Add opensock. * include/sys/socket.h (__opensock): Add prototype declaration. --- sysdeps/generic/opensock.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 sysdeps/generic/opensock.c (limited to 'sysdeps/generic/opensock.c') diff --git a/sysdeps/generic/opensock.c b/sysdeps/generic/opensock.c new file mode 100644 index 0000000000..b3e29b5794 --- /dev/null +++ b/sysdeps/generic/opensock.c @@ -0,0 +1,70 @@ +/* Copyright (C) 1999 Free Software Foundation, Inc. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include +#include + +/* Return a socket of any type. The socket can be used in subsequent + ioctl calls to talk to the kernel. */ +int internal_function +__opensock (void) +{ + /* Cache the last AF that worked, to avoid many redundant calls to + socket(). */ + static int sock_af = -1; + int fd = -1; + __libc_lock_define_initialized (static, lock); + + if (sock_af != -1) + { + fd = __socket (sock_af, SOCK_DGRAM, 0); + if (fd != -1) + return fd; + } + + __libc_lock_lock (lock); + + if (sock_af != -1) + fd = __socket (sock_af, SOCK_DGRAM, 0); + + if (fd == -1) + { +#ifdef AF_INET + fd = __socket (sock_af = AF_INET, SOCK_DGRAM, 0); +#endif +#ifdef AF_INET6 + if (fd < 0) + fd = __socket (sock_af = AF_INET6, SOCK_DGRAM, 0); +#endif +#ifdef AF_IPX + if (fd < 0) + fd = __socket (sock_af = AF_IPX, SOCK_DGRAM, 0); +#endif +#ifdef AF_AX25 + if (fd < 0) + fd = __socket (sock_af = AF_AX25, SOCK_DGRAM, 0); +#endif +#ifdef AF_APPLETALK + if (fd < 0) + fd = __socket (sock_af = AF_APPLETALK, SOCK_DGRAM, 0); +#endif + } + + __libc_lock_unlock (lock); + return fd; +} -- cgit 1.4.1