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extmod/vfs_fat: Add file and directory checks for remove and rmdir.

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Alex March 2016-09-28 14:51:35 +01:00 committed by Damien George
parent eaef6b5324
commit d02f3a57f4
1 changed files with 30 additions and 11 deletions
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41
extmod/vfs_fat.c
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@ -31,6 +31,7 @@
#include <string.h>
#include "py/nlr.h"
#include "py/runtime.h"
#include "py/mperrno.h"
#include "lib/fatfs/ff.h"
#include "lib/fatfs/diskio.h"
#include "extmod/vfs_fat_file.h"
@ -76,24 +77,42 @@ STATIC mp_obj_t fat_vfs_listdir_func(size_t n_args, const mp_obj_t *args) {
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(fat_vfs_listdir_obj, 1, 2, fat_vfs_listdir_func);
STATIC mp_obj_t fat_vfs_remove(mp_obj_t vfs_in, mp_obj_t path_in) {
(void)vfs_in;
STATIC mp_obj_t fat_vfs_remove_internal(mp_obj_t path_in, mp_int_t attr) {
const char *path = mp_obj_str_get_str(path_in);
// TODO check that path is actually a file before trying to unlink it
FRESULT res = f_unlink(path);
if (res == FR_OK) {
return mp_const_none;
} else {
FILINFO fno;
#if _USE_LFN
fno.lfname = NULL;
fno.lfsize = 0;
#endif
FRESULT res = f_stat(path, &fno);
if (res != FR_OK) {
mp_raise_OSError(fresult_to_errno_table[res]);
}
// check if path is a file or directory
if ((fno.fattrib & AM_DIR) == attr) {
res = f_unlink(path);
if (res != FR_OK) {
mp_raise_OSError(fresult_to_errno_table[res]);
}
return mp_const_none;
} else {
mp_raise_OSError(attr ? MP_ENOTDIR : MP_EISDIR);
}
}
STATIC mp_obj_t fat_vfs_remove(mp_obj_t vfs_in, mp_obj_t path_in) {
(void)vfs_in;
return fat_vfs_remove_internal(path_in, 0); // 0 == file attribute
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_remove_obj, fat_vfs_remove);
STATIC mp_obj_t fat_vfs_rmdir(mp_obj_t vfs_in, mp_obj_t path_in) {
// TODO: Currently just redirects to fat_vfs_remove(), which are
// backed by the same underlying FatFs function. Should at least
// check that path is actually a dir.
return fat_vfs_remove(vfs_in, path_in);
(void) vfs_in;
return fat_vfs_remove_internal(path_in, AM_DIR);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_rmdir_obj, fat_vfs_rmdir);