Struct dirent/Dir

tag: Io OS uses the AR file SP Div on CTI

# Include <dirent. h> struct dirent {long d_ino; // inode number index node number off_t d_off; // offset to this dirent offset unsigned short d_reclen in the directory file; // length of this d_name File Name Length unsigned char d_type; // The type of the d_name file type char d_name [name_max + 1]; // file name, the maximum value is 256 bytes.} is generally returned using the strcut dirent * dp = readdir (DIR) function. From the above, we can see that dirent has less content, so dirent also plays an index. To obtain the file information with the LS-l effect, you must rely on the stat function. Struct _ dirstream {void * _ FD; char * _ data; int _ entry_data; char * _ PTR; int _ entry_ptr; size_t _ allocation; size_t _ size; _ libc_lock_define (, _ Lock) ;}; typedef struct _ dirstream dir; function dir * opendir (const char * pathname), open the file directory, and return the Dir struct pointer. Specific functions: strcut dirent * readdir (dir * DP); void rewinddir (dir * DP); int closedir (dir * DP); long telldir (dir * DP ); void seekdir (dir * DP, long LOC); the file name read through the readdir function is stored in the d_name of the dirent struct, And the int Stat (const char * file_name, struct stat * BUF); function is to obtain detailed information about the file named d_name strcut stat {mode_t st_mode; // file access permission ino_t st_ino; // index node number dev_t st_dev; // The device number dev_t st_rdev used in the file; // The device number nlink_t st_nlink of the device file; // The number of hard connections in the file uid_t st_uid; // The owner's user identification number gid_t st_gid; // group identification number off_t st_size; // The file capacity in bytes time_t st_atime; // the last file access time time_t st_mtime; // time_t st_ctime when the file was last modified; // The last time the File status was changed: blksize_t st_blksize; // the size of the disk block containing the file: blkcnt_t st_blocks; // disk block occupied by the file}

struct dirent/DIR