dirent.h

本程序通过系统调用stat读出文件大小属性

#define NAME_MAX		14	/* longest filname componest; */
					/* system-dependent */

typedef struct {			/* portable directory entry: */
	ling ino;			/* inode number */
	char name[NAME_MAX + 1];	/* name+'\0' terminator */
} Dirent;

typedef struct {			/* miniv 1 DIR: no buffering, etc, */
	int fd;				/* file descriptor for directory */
	Dirent d;			/* the directory entry */
} DIR;

DIR* opendir(char* dirname);
Dirent* readdir(DIR* dfd);
void closedir(DIR* dfd);