Delete folder and contents?

[gunar.kroeger]

Hi,
I wish to remove directory and and its contents like rm -rf <target> from SD card

I found this example:

Code: [Select all] [Expand/Collapse]

1. #define _XOPEN_SOURCE 500
2. #include <stdio.h>
3. #include <ftw.h>
4. #include <unistd.h>
5.  
6. int unlink_cb(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf)
7. {
8.     int rv = remove(fpath);
9.  
10.     if (rv)
11.         perror(fpath);
12.  
13.     return rv;
14. }
15.  
16. int rmrf(char *path)
17. {
18.     return nftw(path, unlink_cb, 64, FTW_DEPTH | FTW_PHYS);
19. }

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But I get "fatal error: ftw.h: No such file or directory" even though I'm defining _XOPEN_SOURCE 500.
I tried to define XOPEN_SOURCE as

Code: Select all

CFLAGS := -D_OXPEN_SOURCE=500

in the project Makefile, but that caused a lot of other idf components compilation errors.

[chegewara]

CFLAGS := -D_OXPEN_SOURCE=500

Typo on forum or in code?

[ESP_Sprite]

I don't think our newlib implements nftw; it was a pretty recent addition to their codebase. Suggest you use the 'classic' opendir/readdir calls instead, and do the recursion yourself.

[gunar.kroeger]

Typo on forum or in code?

sorry, on forum.

Suggest you use the 'classic' opendir/readdir calls instead, and do the recursion yourself.

Ok. Thanks for the quick reply (: