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/* Copyright (C) 1992, 93, 94, 95, 97, 98 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stddef.h>
#include <errno.h>
#include <sys/types.h>
#include <hurd.h>
#include <hurd/fd.h>
#include <string.h>
#include <unistd.h>
ssize_t
__getdirentries (int fd,
char *buf,
size_t nbytes,
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;
}
weak_alias (__getdirentries, getdirentries)
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