94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
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/*
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File: file_wld.c
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Copyright (C) 2016 Christophe GRENIER <grenier@cgsecurity.org>
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This software is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write the Free Software Foundation, Inc., 51
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Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include <stdio.h>
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#include "types.h"
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#include "filegen.h"
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#include "common.h"
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static void register_header_check_wld(file_stat_t *file_stat);
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const file_hint_t file_hint_wld= {
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.extension="wld",
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.description="Terraria world",
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.max_filesize=PHOTOREC_MAX_FILE_SIZE,
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.recover=1,
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.enable_by_default=1,
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.register_header_check=®ister_header_check_wld
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};
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/* See http://ludwig.schafer.free.fr for WLD file format */
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static void file_rename_wld(file_recovery_t *file_recovery)
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{
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uint32_t offset;
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unsigned char buffer[256];
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FILE *file;
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if((file=fopen(file_recovery->filename, "rb"))==NULL)
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return;
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if (fseek(file, 0x1a, SEEK_SET) == -1 ||
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fread(&offset, 4, 1, file)!=1 ||
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fseek(file, le32(offset), SEEK_SET) == -1 ||
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fread(&buffer, 256, 1, file)!=1)
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{
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fclose(file);
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return ;
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}
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fclose(file);
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file_rename(file_recovery, &buffer[1], buffer[0], 0, NULL, 1);
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}
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static int header_check_wld(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)
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{
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if(buffer[0xB]<=0 || buffer[0xB]>3)
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return 0;
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reset_file_recovery(file_recovery_new);
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switch(buffer[0xb])
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{
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case 0x01:
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file_recovery_new->extension="map";
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break;
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case 0x02:
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file_recovery_new->extension=file_hint_wld.extension;
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file_recovery_new->file_rename=&file_rename_wld;
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break;
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case 0x03:
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file_recovery_new->extension="plr";
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break;
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}
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return 1;
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}
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static void register_header_check_wld(file_stat_t *file_stat)
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{
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static const unsigned char wld_header[10]= {
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0x00, 0x00, 0x00,
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'r' , 'e' , 'l' , 'o' , 'g' , 'i' , 'c' };
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register_header_check(1, wld_header, sizeof(wld_header), &header_check_wld, file_stat);
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}
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