glibc/sysdeps/unix/bsd/readdir.c
Roland McGrath 9e865adecf * sysdeps/mach/hurd/dirstream.h: Define `struct __dirstream'
instead of `DIR'.
	* sysdeps/unix/bsd/dirstream.h: Likewise.
	* sysdeps/stub/dirstream.h: Likewise.
	* sysdeps/unix/dirstream.h: Likewise.
	* sysdeps/mach/hurd/telldir.c: Include "dirstream.h".
	* sysdeps/mach/hurd/seekdir.c: Likewise.
	* sysdeps/mach/hurd/opendir.c: Likewise.
	* sysdeps/mach/hurd/closedir.c: Likewise.
	* sysdeps/mach/hurd/readdir.c: Likewise.
	* sysdeps/unix/telldir.c: Likewise.
	* sysdeps/unix/seekdir.c: Likewise.
	* sysdeps/unix/rewinddir.c: Likewise.
	* sysdeps/unix/readdir.c: Likewise.
	* sysdeps/unix/opendir.c: Likewise.
	* sysdeps/unix/closedir.c: Likewise.
	* sysdeps/unix/bsd/telldir.c: Likewise.
	* sysdeps/unix/bsd/readdir.c: Likewise.
	* dirent/Makefile (headers): Remove dirstream.h.
	(distribute): Put it here instead.
1995-08-28 09:00:05 +00:00

71 lines
1.9 KiB
C

/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 <limits.h>
#include <stddef.h>
#include <string.h>
#include <dirent.h>
#include <unistd.h>
#include <sys/types.h>
#include "direct.h"
#include "dirstream.h"
/* Read a directory entry from DIRP. */
struct dirent *
DEFUN(readdir, (dirp), DIR *dirp)
{
struct dirent *dp;
if (dirp == NULL || dirp->__data == NULL)
{
errno = EINVAL;
return NULL;
}
do
{
if (dirp->__offset >= dirp->__size)
{
/* We've emptied out our buffer. Refill it. */
ssize_t bytes = __getdirentries (dirp->__fd, dirp->__data,
dirp->__allocation, &dirp->__pos);
if (bytes <= 0)
return NULL;
dirp->__size = (size_t) bytes;
/* Reset the offset into the buffer. */
dirp->__offset = 0;
}
dp = (struct dirent *) &dirp->__data[dirp->__offset];
dirp->__offset += dp->d_reclen;
#ifndef HAVE_D_TYPE
dp->d_namlen = ((struct direct *) dp)->d_namlen;
dp->d_type = DT_UNKNOWN;
#endif
/* Loop to ignore deleted files. */
} while (dp->d_fileno == 0);
return dp;
}