77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
|
/*
|
||
|
|
|
||
|
|
File: file_pcx.c
|
||
|
|
|
||
|
|
Copyright (C) 2006-2007 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.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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"
|
||
|
|
|
||
|
|
|
||
|
|
static void register_header_check_pcx(file_stat_t *file_stat);
|
||
|
|
static int header_check_pcx(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 file_hint_t file_hint_pcx= {
|
||
|
|
.extension="pcx",
|
||
|
|
.description="PCX bitmap image",
|
||
|
|
.min_header_distance=0,
|
||
|
|
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
|
||
|
|
.recover=1,
|
||
|
|
.register_header_check=®ister_header_check_pcx
|
||
|
|
};
|
||
|
|
|
||
|
|
static const unsigned char pcx_header[1]= {0x0a};
|
||
|
|
|
||
|
|
static void register_header_check_pcx(file_stat_t *file_stat)
|
||
|
|
{
|
||
|
|
register_header_check(0, pcx_header,sizeof(pcx_header), &header_check_pcx, file_stat);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int header_check_pcx(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)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
0x0a 0x00 PCX ver. 2.5 image data
|
||
|
|
0x0a 0x02 PCX ver. 2.8 image data, with palette
|
||
|
|
0x0a 0x03 PCX ver. 2.8 image data, without palette
|
||
|
|
0x0a 0x04 PCX for Windows image data
|
||
|
|
0x0a 0x05 PCX ver. 3.0 image data
|
||
|
|
buffer[2]==0 uncompressed
|
||
|
|
buffer[2]==1 RLE compressed
|
||
|
|
buffer[3] Number of bits of color used for each pixel
|
||
|
|
buffer[64] Reserved
|
||
|
|
*/
|
||
|
|
if(buffer[0]==0x0a && (buffer[1]<=5 && buffer[1]!=1) && buffer[2]<=1 &&
|
||
|
|
(buffer[3]==1 || buffer[3]==4 || buffer[3]==8 || buffer[3]==24) &&
|
||
|
|
buffer[64]==0)
|
||
|
|
{
|
||
|
|
reset_file_recovery(file_recovery_new);
|
||
|
|
file_recovery_new->extension=file_hint_pcx.extension;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|