1  /* setsockopt.c --- wrappers for Windows setsockopt function
       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 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 struct timeval. */
      27  #include <sys/time.h>
      28  
      29  /* Get set_winsock_errno, FD_TO_SOCKET etc. */
      30  #include "w32sock.h"
      31  
      32  #undef setsockopt
      33  
      34  int
      35  rpl_setsockopt (int fd, int level, int optname, const void *optval, socklen_t optlen)
      36  {
      37    SOCKET sock = FD_TO_SOCKET (fd);
      38    int r;
      39  
      40    if (sock == INVALID_SOCKET)
      41      {
      42        errno = EBADF;
      43        return -1;
      44      }
      45    else
      46      {
      47        if (level == SOL_SOCKET
      48            && (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
      49          {
      50            const struct timeval *tv = optval;
      51            int milliseconds = tv->tv_sec * 1000 + tv->tv_usec / 1000;
      52            optval = &milliseconds;
      53            r = setsockopt (sock, level, optname, optval, sizeof (int));
      54          }
      55        else
      56          {
      57            r = setsockopt (sock, level, optname, optval, optlen);
      58          }
      59  
      60        if (r < 0)
      61          set_winsock_errno ();
      62  
      63        return r;
      64      }
      65  }