Linux 目录内容的结构

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$ man -k direct | grep read
readdir              (2)  - read directory entry
readdir              (3p)  - read a directory
readdir              (3)  - read a directory
readdir_r [readdir]  (3p)  - read a directory
readdir_r [readdir]  (3)  - read a directory
readlinkat           (2)  - read value of a symbolic link relative to a directory file descriptor
seekdir              (3)  - set the position of the next readdir() call in the directory stream

$ man 3 readdir
...(内容省略)

目录结构所在的头文件

  • dirent.h
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    #include <dirent.h>

保存目录内容的结构体

  • 结构体 - dirent
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    struct dirent {
                  ino_t          d_ino;       /* inode number */
                  off_t          d_off;       /* offset to the next dirent */
                  unsigned short d_reclen;    /* length of this record */
                  unsigned char  d_type;      /* type of file; not supported
                                                 by all file system types */
                  char           d_name[256]; /* filename */
              };