Ryo Iizuka / NyFileSystems

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Fork of NySDFileSystem by Ryo Iizuka

FATFileSystem/FATDirHandle.cpp@6:972a52e4d92c, 2013-04-26 (annotated)

Committer:
nyatla
Date:
Fri Apr 26 09:07:37 2013 +0000
Revision:
6:972a52e4d92c
Parent:
5:2c7b6bd5b079 
remove sprintf and n[64] from FATFileSystem; change ChaN library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nyatla 5:2c7b6bd5b079 1 /* mbed Microcontroller Library
nyatla 5:2c7b6bd5b079 2 * Copyright (c) 2006-2012 ARM Limited
nyatla 5:2c7b6bd5b079 3 *
nyatla 5:2c7b6bd5b079 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
nyatla 5:2c7b6bd5b079 5 * of this software and associated documentation files (the "Software"), to deal
nyatla 5:2c7b6bd5b079 6 * in the Software without restriction, including without limitation the rights
nyatla 5:2c7b6bd5b079 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
nyatla 5:2c7b6bd5b079 8 * copies of the Software, and to permit persons to whom the Software is
nyatla 5:2c7b6bd5b079 9 * furnished to do so, subject to the following conditions:
nyatla 5:2c7b6bd5b079 10 *
nyatla 5:2c7b6bd5b079 11 * The above copyright notice and this permission notice shall be included in
nyatla 5:2c7b6bd5b079 12 * all copies or substantial portions of the Software.
nyatla 5:2c7b6bd5b079 13 *
nyatla 5:2c7b6bd5b079 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
nyatla 5:2c7b6bd5b079 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
nyatla 5:2c7b6bd5b079 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
nyatla 5:2c7b6bd5b079 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
nyatla 5:2c7b6bd5b079 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
nyatla 5:2c7b6bd5b079 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
nyatla 5:2c7b6bd5b079 20 * SOFTWARE.
nyatla 5:2c7b6bd5b079 21 */
nyatla 5:2c7b6bd5b079 22 #include <string.h>
nyatla 5:2c7b6bd5b079 23 #include "ff.h"
nyatla 5:2c7b6bd5b079 24 #include "FATDirHandle.h"
nyatla 5:2c7b6bd5b079 25
nyatla 5:2c7b6bd5b079 26 using namespace mbed;
nyatla 5:2c7b6bd5b079 27
nyatla 5:2c7b6bd5b079 28 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
nyatla 5:2c7b6bd5b079 29 dir = the_dir;
nyatla 5:2c7b6bd5b079 30 }
nyatla 5:2c7b6bd5b079 31
nyatla 5:2c7b6bd5b079 32 int FATDirHandle::closedir() {
nyatla 5:2c7b6bd5b079 33 delete this;
nyatla 5:2c7b6bd5b079 34 return 0;
nyatla 5:2c7b6bd5b079 35 }
nyatla 5:2c7b6bd5b079 36
nyatla 5:2c7b6bd5b079 37 struct dirent *FATDirHandle::readdir() {
nyatla 5:2c7b6bd5b079 38 FILINFO finfo;
nyatla 5:2c7b6bd5b079 39
nyatla 5:2c7b6bd5b079 40 #if _USE_LFN
nyatla 5:2c7b6bd5b079 41 finfo.lfname = cur_entry.d_name;
nyatla 5:2c7b6bd5b079 42 finfo.lfsize = sizeof(cur_entry.d_name);
nyatla 5:2c7b6bd5b079 43 #endif // _USE_LFN
nyatla 5:2c7b6bd5b079 44
nyatla 5:2c7b6bd5b079 45 FRESULT res = f_readdir(&dir, &finfo);
nyatla 5:2c7b6bd5b079 46
nyatla 5:2c7b6bd5b079 47 #if _USE_LFN
nyatla 5:2c7b6bd5b079 48 if(res != 0 || finfo.fname[0]==0) {
nyatla 5:2c7b6bd5b079 49 return NULL;
nyatla 5:2c7b6bd5b079 50 } else {
nyatla 6:972a52e4d92c 51 cur_entry.fattrib=finfo.fattrib;
nyatla 6:972a52e4d92c 52 cur_entry.fsize=finfo.fsize;
nyatla 5:2c7b6bd5b079 53 if(cur_entry.d_name[0]==0) {
nyatla 5:2c7b6bd5b079 54 // No long filename so use short filename.
nyatla 5:2c7b6bd5b079 55 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
nyatla 5:2c7b6bd5b079 56 }
nyatla 5:2c7b6bd5b079 57 return &cur_entry;
nyatla 5:2c7b6bd5b079 58 }
nyatla 5:2c7b6bd5b079 59 #else
nyatla 5:2c7b6bd5b079 60 if(res != 0 || finfo.fname[0]==0) {
nyatla 5:2c7b6bd5b079 61 return NULL;
nyatla 5:2c7b6bd5b079 62 } else {
nyatla 6:972a52e4d92c 63 cur_entry.fatatlib=finfo.fattrib;
nyatla 5:2c7b6bd5b079 64 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
nyatla 5:2c7b6bd5b079 65 return &cur_entry;
nyatla 5:2c7b6bd5b079 66 }
nyatla 5:2c7b6bd5b079 67 #endif /* _USE_LFN */
nyatla 5:2c7b6bd5b079 68 }
nyatla 5:2c7b6bd5b079 69
nyatla 5:2c7b6bd5b079 70 void FATDirHandle::rewinddir() {
nyatla 5:2c7b6bd5b079 71 dir.index = 0;
nyatla 5:2c7b6bd5b079 72 }
nyatla 5:2c7b6bd5b079 73
nyatla 5:2c7b6bd5b079 74 off_t FATDirHandle::telldir() {
nyatla 5:2c7b6bd5b079 75 return dir.index;
nyatla 5:2c7b6bd5b079 76 }
nyatla 5:2c7b6bd5b079 77
nyatla 5:2c7b6bd5b079 78 void FATDirHandle::seekdir(off_t location) {
nyatla 5:2c7b6bd5b079 79 dir.index = location;
nyatla 5:2c7b6bd5b079 80 }
nyatla 5:2c7b6bd5b079 81