| /* Copyright (C) 1992-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <sys/socket.h> |
| #include <hurd.h> |
| #include <hurd/fd.h> |
| #include <hurd/socket.h> |
| #include <string.h> |
| |
| /* Put the current value for socket FD's option OPTNAME at protocol level LEVEL |
| into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's |
| actual length. Returns 0 on success, -1 for errors. */ |
| |
| /* XXX should be __getsockopt ? */ |
| int |
| getsockopt (int fd, |
| int level, |
| int optname, |
| void *optval, |
| socklen_t *optlen) |
| { |
| error_t err; |
| char *buf = optval; |
| mach_msg_type_number_t buflen = *optlen; |
| |
| if (err = HURD_DPORT_USE (fd, __socket_getopt (port, |
| level, optname, |
| &buf, &buflen))) |
| return __hurd_dfail (fd, err); |
| |
| if (*optlen > buflen) |
| *optlen = buflen; |
| if (buf != optval) |
| { |
| memcpy (optval, buf, *optlen); |
| __vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen); |
| } |
| |
| return 0; |
| } |