79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/*
|
|
|
|
File: file_pa.c
|
|
|
|
Copyright (C) 2022 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 version 2 of the License, or
|
|
(at your option) any later 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.
|
|
|
|
*/
|
|
|
|
#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_pa)
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
#ifdef HAVE_STRING_H
|
|
#include <string.h>
|
|
#endif
|
|
#include <stdio.h>
|
|
#include "types.h"
|
|
#include "filegen.h"
|
|
#include "common.h"
|
|
|
|
/*@ requires valid_register_header_check(file_stat); */
|
|
static void register_header_check_pa(file_stat_t *file_stat);
|
|
|
|
const file_hint_t file_hint_pa= {
|
|
.extension="pa",
|
|
.description="PowerArchiver",
|
|
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
|
|
.recover=1,
|
|
.enable_by_default=1,
|
|
.register_header_check=®ister_header_check_pa
|
|
};
|
|
|
|
struct pa_header
|
|
{
|
|
char magic[8];
|
|
uint32_t unk;
|
|
uint64_t size;
|
|
} __attribute__ ((gcc_struct, __packed__));
|
|
|
|
/*@
|
|
@ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
|
|
@ ensures valid_header_check_result(\result, file_recovery_new);
|
|
@*/
|
|
static int header_check_pa(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 pa_header *hdr=(const struct pa_header *)buffer;
|
|
const uint64_t size=le64(hdr->size);
|
|
if(size > PHOTOREC_MAX_FILE_SIZE)
|
|
return 0;
|
|
reset_file_recovery(file_recovery_new);
|
|
file_recovery_new->extension=file_hint_pa.extension;
|
|
file_recovery_new->calculated_file_size=70+size;
|
|
file_recovery_new->data_check=&data_check_size;
|
|
file_recovery_new->file_check=&file_check_size;
|
|
return 1;
|
|
}
|
|
|
|
static void register_header_check_pa(file_stat_t *file_stat)
|
|
{
|
|
static const unsigned char pa_header[8]= {
|
|
'P' , 'a' , 'F' , 'i' , 'L' , 'e' , 0x00, 0x04
|
|
};
|
|
register_header_check(0, pa_header, sizeof(pa_header), &header_check_pa, file_stat);
|
|
}
|
|
#endif
|