#ifndef _SYS_STAT_H #define _SYS_STAT_H typedef unsigned int __dev_t; typedef unsigned short __ino_t; typedef unsigned short __mode_t; typedef long __off_t; #define dev_t __dev_t #define ino_t __ino_t #define mode_t __mode_t #define off_t __off_t int mkdir(const char *path, mode_t mode); int remove(const char *pathname); int rename(const char *oldpath, const char *newpath); #endif