1 /* sockets.h - wrappers for Windows socket functions
2 
3    Copyright (C) 2008-2019 Free Software Foundation, Inc.
4 
5    This program is free software: you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation; either version 3 of the License, or
8    (at your option) any later version.
9 
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14 
15    You should have received a copy of the GNU General Public License
16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
17 
18 /* Written by Simon Josefsson */
19 
20 #ifndef SOCKETS_H
21 #define SOCKETS_H 1
22 
23 #define SOCKETS_1_0 0x0001
24 #define SOCKETS_1_1 0x0101
25 #define SOCKETS_2_0 0x0002
26 #define SOCKETS_2_1 0x0102
27 #define SOCKETS_2_2 0x0202
28 
29 int gl_sockets_startup (int version)
30 #ifndef WINDOWS_SOCKETS
31   _GL_ATTRIBUTE_CONST
32 #endif
33   ;
34 
35 int gl_sockets_cleanup (void)
36 #ifndef WINDOWS_SOCKETS
37   _GL_ATTRIBUTE_CONST
38 #endif
39   ;
40 
41 /* This function is useful it you create a socket using gnulib's
42    Winsock wrappers but needs to pass on the socket handle to some
43    other library that only accepts sockets. */
44 #ifdef WINDOWS_SOCKETS
45 
46 # include <sys/socket.h>
47 
48 # if GNULIB_MSVC_NOTHROW
49 #  include "msvc-nothrow.h"
50 # else
51 #  include <io.h>
52 # endif
53 
54 static inline SOCKET
gl_fd_to_handle(int fd)55 gl_fd_to_handle (int fd)
56 {
57   return _get_osfhandle (fd);
58 }
59 
60 #else
61 
62 # define gl_fd_to_handle(x) (x)
63 
64 #endif /* WINDOWS_SOCKETS */
65 
66 #endif /* SOCKETS_H */
67