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/*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <dirent.h>
#include <errno.h>
#define __need_NULL
#include <stddef.h>
#include "dirstream.h"
#ifndef __READDIR
# define __READDIR readdir
# define __DIRENT_TYPE struct dirent
# define __GETDENTS __getdents
#endif
__DIRENT_TYPE *__READDIR(DIR * dir)
{
ssize_t bytes;
__DIRENT_TYPE *de;
if (!dir) {
__set_errno(EBADF);
return NULL;
}
__UCLIBC_MUTEX_LOCK(dir->dd_lock);
do {
if (dir->dd_size <= dir->dd_nextloc) {
/* read dir->dd_max bytes of directory entries. */
bytes = __GETDENTS(dir->dd_fd, dir->dd_buf, dir->dd_max);
if (bytes <= 0) {
de = NULL;
goto all_done;
}
dir->dd_size = bytes;
dir->dd_nextloc = 0;
}
de = (__DIRENT_TYPE *) (((char *) dir->dd_buf) + dir->dd_nextloc);
/* Am I right? H.J. */
dir->dd_nextloc += de->d_reclen;
/* We have to save the next offset here. */
dir->dd_nextoff = de->d_off;
/* Skip deleted files. */
} while (de->d_ino == 0);
all_done:
__UCLIBC_MUTEX_UNLOCK(dir->dd_lock);
return de;
}
libc_hidden_def(__READDIR)
#if __WORDSIZE == 64
strong_alias_untyped(readdir,readdir64)
libc_hidden_def(readdir64)
#endif
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