95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
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/*
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* Copyright (c) 2018 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <stdlib.h>
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#include "../libs/fatfs/ff.h"
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#include "../mem/heap.h"
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#include "../utils/types.h"
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char *dirlist(const char *directory, const char *pattern, bool includeHiddenFiles)
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{
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u8 max_entries = 61;
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int res = 0;
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u32 i = 0, j = 0, k = 0;
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DIR dir;
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FILINFO fno;
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char *dir_entries = (char *)calloc(max_entries, 256);
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char *temp = (char *)calloc(1, 256);
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if (!pattern && !f_opendir(&dir, directory))
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{
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for (;;)
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{
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res = f_readdir(&dir, &fno);
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if (res || !fno.fname[0])
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break;
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if (!(fno.fattrib & AM_DIR) && (fno.fname[0] != '.') && (includeHiddenFiles || !(fno.fattrib & AM_HID)))
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{
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memcpy(dir_entries + (k * 256), fno.fname, strlen(fno.fname) + 1);
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k++;
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if (k > (max_entries - 1))
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break;
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}
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}
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f_closedir(&dir);
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}
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else if (pattern && !f_findfirst(&dir, &fno, directory, pattern) && fno.fname[0])
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{
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do
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{
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if (!(fno.fattrib & AM_DIR) && (fno.fname[0] != '.') && (includeHiddenFiles || !(fno.fattrib & AM_HID)))
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{
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memcpy(dir_entries + (k * 256), fno.fname, strlen(fno.fname) + 1);
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k++;
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if (k > (max_entries - 1))
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break;
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}
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res = f_findnext(&dir, &fno);
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} while (fno.fname[0] && !res);
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f_closedir(&dir);
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}
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if (!k)
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{
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free(temp);
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free(dir_entries);
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return NULL;
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}
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// Reorder ini files by ASCII ordering.
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for (i = 0; i < k - 1 ; i++)
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{
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for (j = i + 1; j < k; j++)
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{
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if (strcmp(&dir_entries[i * 256], &dir_entries[j * 256]) > 0)
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{
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memcpy(temp, &dir_entries[i * 256], strlen(&dir_entries[i * 256]) + 1);
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memcpy(&dir_entries[i * 256], &dir_entries[j * 256], strlen(&dir_entries[j * 256]) + 1);
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memcpy(&dir_entries[j * 256], temp, strlen(temp) + 1);
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}
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}
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}
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free(temp);
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return dir_entries;
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}
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