home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Ince
-
- 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 <stddef.h>
- #include <errno.h>
- #include <sys/types.h>
- #include <hurd.h>
- #include <hurd/fd.h>
-
- ssize_t
- DEFUN(__getdirentries, (fd, buf, nbytes, basep),
- int fd AND PTR buf AND size_t nbytes AND off_t *basep)
- {
- error_t err;
- int entriesread;
- char *data = buf;
- mach_msg_type_number_t bytesread = nbytes;
-
- /* Fault before taking any locks. */
- *(volatile off_t *) basep = *basep;
-
- err = HURD_DPORT_USE (fd, __dir_readdir (port, &data, &bytesread,
- *basep, -1, nbytes, &entriesread));
- if (err)
- return __hurd_dfail (fd, err);
-
- if (data != buf)
- {
- size_t copy = bytesread;
- if (copy > nbytes)
- /* The server has a violated the dir_readdir protocol. */
- copy = nbytes;
- memcpy (buf, data, copy);
- __vm_deallocate (__mach_task_self (), (vm_address_t) data, bytesread);
- bytesread = copy;
- }
-
- *basep += entriesread;
-
- return bytesread;
- }
-