1  /* socket.c --- wrappers for Windows socket function
       2  
       3     Copyright (C) 2008-2021 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 Paolo Bonzini */
      19  
      20  #include <config.h>
      21  
      22  #define WIN32_LEAN_AND_MEAN
      23  /* Get winsock2.h. */
      24  #include <sys/socket.h>
      25  
      26  /* Get set_winsock_errno, FD_TO_SOCKET etc. */
      27  #include "w32sock.h"
      28  
      29  #include "sockets.h"
      30  
      31  /* Don't assume that UNICODE is defined.  */
      32  #undef WSASocket
      33  #define WSASocket WSASocketW
      34  
      35  int
      36  rpl_socket (int domain, int type, int protocol)
      37  {
      38    SOCKET fh;
      39  
      40    gl_sockets_startup (SOCKETS_1_1);
      41  
      42    /* We have to use WSASocket() to create non-overlapped IO sockets.
      43       Overlapped IO sockets cannot be used with read/write.  */
      44    fh = WSASocket (domain, type, protocol, NULL, 0, 0);
      45  
      46    if (fh == INVALID_SOCKET)
      47      {
      48        set_winsock_errno ();
      49        return -1;
      50      }
      51    else
      52      return SOCKET_TO_FD (fh);
      53  }