1  /* connect.c --- wrappers for Windows connect 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  #undef connect
      30  
      31  int
      32  rpl_connect (int fd, const struct sockaddr *sockaddr, socklen_t len)
      33  {
      34    SOCKET sock = FD_TO_SOCKET (fd);
      35  
      36    if (sock == INVALID_SOCKET)
      37      {
      38        errno = EBADF;
      39        return -1;
      40      }
      41    else
      42      {
      43        int r = connect (sock, sockaddr, len);
      44        if (r < 0)
      45          {
      46            /* EINPROGRESS is not returned by WinSock 2.0; for backwards
      47               compatibility, connect(2) uses EWOULDBLOCK.  */
      48            if (WSAGetLastError () == WSAEWOULDBLOCK)
      49              WSASetLastError (WSAEINPROGRESS);
      50  
      51            set_winsock_errno ();
      52          }
      53  
      54        return r;
      55      }
      56  }