| 1 | /* getsockopt.c --- wrappers for Windows getsockopt function |
| 2 | |
| 3 | Copyright (C) 2008-2011 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 Lesser 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 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 <http://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 memcpy. */ |
| 30 | #include <string.h> |
| 31 | |
| 32 | /* Get set_winsock_errno, FD_TO_SOCKET etc. */ |
| 33 | #include "w32sock.h" |
| 34 | |
| 35 | #undef getsockopt |
| 36 | |
| 37 | int |
| 38 | rpl_getsockopt (int fd, int level, int optname, void *optval, socklen_t *optlen) |
| 39 | { |
| 40 | int r; |
| 41 | SOCKET sock = FD_TO_SOCKET (fd); |
| 42 | |
| 43 | if (level == SOL_SOCKET && (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)) |
| 44 | { |
| 45 | int milliseconds; |
| 46 | int milliseconds_len = sizeof (int); |
| 47 | struct timeval tv; |
| 48 | size_t n; |
| 49 | r = getsockopt (sock, level, optname, &milliseconds, &milliseconds_len); |
| 50 | tv.tv_sec = milliseconds / 1000; |
| 51 | tv.tv_usec = (milliseconds - 1000 * tv.tv_sec) * 1000; |
| 52 | n = sizeof (struct timeval); |
| 53 | if (n > *optlen) |
| 54 | n = *optlen; |
| 55 | memcpy (optval, &tv, n); |
| 56 | *optlen = n; |
| 57 | } |
| 58 | else |
| 59 | { |
| 60 | r = getsockopt (sock, level, optname, optval, optlen); |
| 61 | } |
| 62 | |
| 63 | if (r < 0) |
| 64 | set_winsock_errno (); |
| 65 | |
| 66 | return r; |
| 67 | } |