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49114fd4 LC |
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 | } |