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b168057a | 1 | /* Copyright (C) 1992-2015 Free Software Foundation, Inc. |
ebbad4cc | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
ebbad4cc | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 8 | |
ebbad4cc UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 17 | |
28f540f4 RM |
18 | #include <errno.h> |
19 | #include <sys/socket.h> | |
20 | #include <hurd.h> | |
21 | #include <hurd/fd.h> | |
22 | #include <hurd/socket.h> | |
23 | #include <string.h> | |
24 | ||
25 | /* Put the current value for socket FD's option OPTNAME at protocol level LEVEL | |
26 | into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's | |
27 | actual length. Returns 0 on success, -1 for errors. */ | |
ebbad4cc UD |
28 | |
29 | /* XXX should be __getsockopt ? */ | |
28f540f4 | 30 | int |
7ce93726 RM |
31 | getsockopt (int fd, |
32 | int level, | |
33 | int optname, | |
34 | void *optval, | |
35 | socklen_t *optlen) | |
28f540f4 RM |
36 | { |
37 | error_t err; | |
38 | char *buf = optval; | |
39 | mach_msg_type_number_t buflen = *optlen; | |
40 | ||
41 | if (err = HURD_DPORT_USE (fd, __socket_getopt (port, | |
42 | level, optname, | |
43 | &buf, &buflen))) | |
44 | return __hurd_dfail (fd, err); | |
45 | ||
d652f6b8 RM |
46 | if (*optlen > buflen) |
47 | *optlen = buflen; | |
28f540f4 RM |
48 | if (buf != optval) |
49 | { | |
28f540f4 RM |
50 | memcpy (optval, buf, *optlen); |
51 | __vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen); | |
52 | } | |
53 | ||
54 | return 0; | |
55 | } |