gnulib/import/sockets.h

   1 /* sockets.h - wrappers for Windows socket functions
   2
   3    Copyright (C) 2008-2022 Free Software Foundation, Inc.
   4
   5    This file is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU Lesser General Public License as
   7    published by the Free Software Foundation; either version 2.1 of the
   8    License, or (at your option) any later version.
   9
  10    This file 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 Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser 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
  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 */