/* * 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 defined __UCLIBC_HAS_LFS__ && __WORDSIZE == 64 strong_alias_untyped(readdir,readdir64) libc_hidden_def(readdir64) #endif