mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-21 02:10:05 +00:00
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/* Copyright (C) 1992, 1994 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <ansidecl.h>
|
|
#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. */
|
|
int
|
|
DEFUN(getsockopt, (fd, level, optname, optval, optlen),
|
|
int fd AND int level AND int optname AND
|
|
PTR optval AND size_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 (buf != optval)
|
|
{
|
|
if (*optlen < buflen)
|
|
*optlen = buflen;
|
|
memcpy (optval, buf, *optlen);
|
|
__vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen);
|
|
}
|
|
|
|
return 0;
|
|
}
|