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-rw-r--r--src/file_fit.c75
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diff --git a/src/file_fit.c b/src/file_fit.c
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+++ b/src/file_fit.c
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+/*
+
+ File: file_fit.c
+
+ Copyright (C) 2017 Christophe GRENIER <grenier@cgsecurity.org>
+
+ This software is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either profile_version 2 of the License, or
+ (at your option) any later profile_version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write the Free Software Foundation, Inc., 51
+ Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#include <stdio.h>
+#include <ctype.h>
+#include "types.h"
+#include "filegen.h"
+#include "common.h"
+
+static void register_header_check_fit(file_stat_t *file_stat);
+
+const file_hint_t file_hint_fit = {
+ .extension="fit",
+ .description="Flexible & Interoperable Data Transfer / Garmin track file",
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_fit
+};
+
+struct fits_header
+{
+ unsigned char header_size;
+ unsigned char protocol_version;
+ uint16_t profile_version;
+ uint32_t data_size;
+ char signature[4];
+} __attribute__ ((gcc_struct, __packed__));
+
+static int header_check_fit(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
+{
+ const struct fits_header* h = (const struct fits_header *)buffer;
+ if (h->header_size < 12)
+ return 0;
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension = file_hint_fit.extension;
+ file_recovery_new->min_filesize = 12;
+ file_recovery_new->calculated_file_size=(uint64_t)le32(h->data_size) + h->header_size;
+ if(h->header_size >= 14)
+ file_recovery_new->calculated_file_size+=2; /* CRC at the end of the file */
+ file_recovery_new->data_check=&data_check_size;
+ file_recovery_new->file_check=&file_check_size;
+ return 1;
+}
+
+static void register_header_check_fit(file_stat_t *file_stat)
+{
+ static const unsigned char fits_header[4]= { '.', 'F', 'I', 'T' };
+ register_header_check(8, fits_header, sizeof(fits_header), &header_check_fit, file_stat);
+}