OpenVPN
fdmisc.h
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1 /*
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
6  * packet compression.
7  *
8  * Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
9  *
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.
13  *
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.
18  *
19  * You should have received a copy of the GNU General Public License along
20  * with this program; if not, write to the Free Software Foundation, Inc.,
21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22  */
23 
24 #ifndef FD_MISC_H
25 #define FD_MISC_H
26 
27 #include "basic.h"
28 #include "error.h"
29 #include "syshead.h"
30 
31 bool set_nonblock_action(int fd);
32 
33 bool set_cloexec_action(int fd);
34 
35 void set_nonblock(int fd);
36 
37 void set_cloexec(int fd);
38 
39 static inline void
40 openvpn_fd_set(int fd, fd_set *setp)
41 {
42 #ifndef _WIN32 /* The Windows FD_SET() implementation does not overflow */
43  ASSERT(fd >= 0 && fd < FD_SETSIZE);
44 #endif
45  FD_SET(fd, setp);
46 }
47 #undef FD_SET /* prevent direct use of FD_SET() */
48 
49 #endif /* FD_MISC_H */
void set_cloexec(int fd)
Definition: fdmisc.c:81
#define ASSERT(x)
Definition: error.h:221
static void openvpn_fd_set(int fd, fd_set *setp)
Definition: fdmisc.h:40
bool set_cloexec_action(int fd)
Definition: fdmisc.c:58
void set_nonblock(int fd)
Definition: fdmisc.c:71
bool set_nonblock_action(int fd)
Definition: fdmisc.c:39