2 * OpenVPN -- An application to securely tunnel IP networks
3 * over a single UDP port, with support for SSL/TLS-based
4 * session authentication and key exchange,
5 * packet encryption, packet authentication, and
8 * Copyright (C) 2002-2009 OpenVPN Technologies, Inc. <sales@openvpn.net>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2
12 * as published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program (see the file COPYING included with this
21 * distribution); if not, write to the Free Software Foundation, Inc.,
22 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
32 /* Set a file descriptor to non-blocking */
34 set_nonblock_action (int fd
)
38 if (ioctlsocket (fd
, FIONBIO
, &arg
))
41 if (fcntl (fd
, F_SETFL
, O_NONBLOCK
) < 0)
47 /* Set a file descriptor to not be passed across execs */
49 set_cloexec_action (int fd
)
52 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
) < 0)
58 /* Set a file descriptor to non-blocking */
62 if (!set_nonblock_action (fd
))
63 msg (M_SOCKERR
, "Set socket to non-blocking mode failed");
66 /* Set a file descriptor to not be passed across execs */
70 if (!set_cloexec_action (fd
))
71 msg (M_ERR
, "Set FD_CLOEXEC flag on file descriptor failed");