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PhotoRec: recover FX Preset .fxp files

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This commit is contained in:
Christophe Grenier 2022-11-16 07:49:40 +01:00
parent 1c09ffcb6f
commit f8b86d4f66
3 changed files with 87 additions and 0 deletions
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1
src/Makefile.am
View file

@ -180,6 +180,7 @@ file_C = filegen.c \
file_frm.c \
file_fs.c \
file_fwd.c \
file_fxp.c \
file_gam.c \
file_gct.c \
file_gho.c \

84
src/file_fxp.c Normal file
View file

@ -0,0 +1,84 @@
/*
File: file_fxp.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_fxp)
#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_fxp(file_stat_t *file_stat);
const file_hint_t file_hint_fxp= {
.extension="fxp",
.description="FX Preset files",
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
.recover=1,
.enable_by_default=1,
.register_header_check=&register_header_check_fxp
};
struct fxp_header
{
char magic[4];
uint32_t size;
char fxmagic[4];
uint32_t version;
char fxid[4];
uint32_t fxversion;
uint32_t numPrograms;
char name[28];
uint32_t chunksize;
} __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_fxp(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 fxp_header *fxp=(const struct fxp_header *)buffer;
if(be32(fxp->size) < sizeof(struct fxp_header))
return 0;
if(memcmp(&fxp->fxmagic, "FPCh", 4) != 0)
return 0;
reset_file_recovery(file_recovery_new);
file_recovery_new->extension=file_hint_fxp.extension;
file_recovery_new->calculated_file_size=(uint64_t)be32(fxp->size);
file_recovery_new->data_check=&data_check_size;
file_recovery_new->file_check=&file_check_size;
return 1;
}
static void register_header_check_fxp(file_stat_t *file_stat)
{
static const unsigned char fxp_header[4]= { 'C' , 'c' , 'n' , 'K' };
register_header_check(0, fxp_header, sizeof(fxp_header), &header_check_fxp, file_stat);
}
#endif

2
src/file_list.c
View file

@ -422,6 +422,7 @@ extern const file_hint_t file_hint_fs;
extern const file_hint_t file_hint_fwd;
#endif
#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_gam)
extern const file_hint_t file_hint_fxp;
extern const file_hint_t file_hint_gam;
#endif
#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_gct)
@ -1466,6 +1467,7 @@ file_enable_t array_file_enable[]=
{ .enable=0, .file_hint=&file_hint_fwd },
#endif
#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_gam)
{ .enable=0, .file_hint=&file_hint_fxp },
{ .enable=0, .file_hint=&file_hint_gam },
#endif
#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_gct)