home *** CD-ROM | disk | FTP | other *** search
- /* 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>
-
- /* 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;
- unsigned int 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;
- }
-