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/* mbed Microcontroller Library
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* Copyright (c) 2006-2012 ARM Limited
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <string.h>
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#include "ff.h"
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#include "FATDirHandle.h"
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using namespace mbed;
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FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
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dir = the_dir;
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}
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int FATDirHandle::closedir() {
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int retval = f_closedir(&dir);
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delete this;
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return retval;
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}
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struct dirent *FATDirHandle::readdir() {
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FILINFO finfo;
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#if _USE_LFN
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finfo.lfname = cur_entry.d_name;
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finfo.lfsize = sizeof(cur_entry.d_name);
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#endif // _USE_LFN
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FRESULT res = f_readdir(&dir, &finfo);
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#if _USE_LFN
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if(res != 0 || finfo.fname[0]==0) {
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return NULL;
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} else {
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if(cur_entry.d_name[0]==0) {
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// No long filename so use short filename.
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memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
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}
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return &cur_entry;
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}
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#else
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if(res != 0 || finfo.fname[0]==0) {
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return NULL;
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} else {
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memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
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return &cur_entry;
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}
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#endif /* _USE_LFN */
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}
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void FATDirHandle::rewinddir() {
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dir.index = 0;
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}
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off_t FATDirHandle::telldir() {
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return dir.index;
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}
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void FATDirHandle::seekdir(off_t location) {
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dir.index = location;
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}
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ssize_t FATDirHandle::read(struct dirent *ent) {
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struct dirent *temp = readdir();
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if (!temp) {
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return 0;
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}
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memcpy(ent, temp, sizeof(*ent));
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return 1;
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}
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