mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 18:40:14 +00:00
63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/* Copyright (C) 1992, 1993, 1994, 1995 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>
|
|
#include <string.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;
|
|
}
|
|
|
|
weak_alias (__getdirentries, getdirentries)
|
|
|