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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>
#include <string.h>
#define __need_NULL
#include <stddef.h>
#include "dirstream.h"
#ifndef __READDIR_R
# define __READDIR_R readdir_r
# define __DIRENT_TYPE struct dirent
# define __GETDENTS __getdents
#endif
int __READDIR_R(DIR *dir, __DIRENT_TYPE *entry, __DIRENT_TYPE **result)
{
int ret;
ssize_t bytes;
__DIRENT_TYPE *de;
if (!dir) {
__set_errno(EBADF);
return(EBADF);
}
de = 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) {
*result = NULL;
ret = (bytes==0)? 0 : errno;
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);
if (de == NULL) {
*result = NULL;
} else {
*result = memcpy (entry, de, de->d_reclen);
}
ret = 0;
all_done:
__UCLIBC_MUTEX_UNLOCK(dir->dd_lock);
return((de != NULL)? 0 : ret);
}
libc_hidden_def(__READDIR_R)
#if defined __UCLIBC_HAS_LFS__ && __WORDSIZE == 64
strong_alias_untyped(readdir_r,readdir64_r)
libc_hidden_def(readdir64_r)
#endif
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