ftw.h

Overview

Related Modules:

Description:

Provides functions and structures related to file tree traversal.

You can use the functions and structures to traverse files in a specified directory to obtain or process related information.

Since:

1.0

Version:

1.0

Data Structure Name	Description
FTW	Defines the file tree walker (FTW).

Macro Name and Value	Description
FTW_F 1	Regular file.
FTW_D 2	Directory.
FTW_DNR 3	Unreadable directory. Its subdirectories will not be traversed.
FTW_NS 4	The data of the stat structure cannot be obtained. The possible cause is that the permission is incorrect.
FTW_SL 5	Symbolic link.
FTW_DP 6
FTW_SLN 7	Symbolic link that names a non-existent file.
FTW_PHYS 1	Symbolic links that are not traversed. If not set, symbolic links are traversed by default.
FTW_MOUNT 2	Stay within the same file system.
FTW_CHDIR 4	chdir is called to go to the directory before reading the directory.
FTW_DEPTH 8	All subdirectories will be traversed before the directory itself.

Function Name	Description
ftw (const char path, int(fn)(const char file, const struct stat sb, int flag), int depth)	int Traverses a file tree.
nftw (const char path, int(fn)(const char file, const struct stat sb, int flag, struct FTW *s), int fd_limit, int flags)	int Traverses a file tree.