From 71f416eccc2dc530222b8343fb1f1d027dccd8be Mon Sep 17 00:00:00 2001 From: Christophe Grenier Date: Sun, 25 Oct 2009 18:40:07 +0100 Subject: [PATCH] PhotoRec: recover Opera preferences .win files --- src/Makefile.am | 1 + src/file_list.c | 2 ++ src/file_win.c | 95 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 98 insertions(+) create mode 100644 src/file_win.c diff --git a/src/Makefile.am b/src/Makefile.am index cb803326..596ef7c8 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -205,6 +205,7 @@ file_C = filegen.c \ file_veg.c \ file_vmdk.c \ file_wdp.c \ + file_win.c \ file_wks.c \ file_wmf.c \ file_wnk.c \ diff --git a/src/file_list.c b/src/file_list.c index 684d1a74..64d4e67b 100644 --- a/src/file_list.c +++ b/src/file_list.c @@ -208,6 +208,7 @@ extern const file_hint_t file_hint_tz; extern const file_hint_t file_hint_veg; extern const file_hint_t file_hint_vmdk; extern const file_hint_t file_hint_wdp; +extern const file_hint_t file_hint_win; extern const file_hint_t file_hint_wks; extern const file_hint_t file_hint_wmf; extern const file_hint_t file_hint_wnk; @@ -404,6 +405,7 @@ file_enable_t list_file_enable[]= { .enable=0, .file_hint=&file_hint_vmdk }, { .enable=0, .file_hint=&file_hint_veg }, { .enable=0, .file_hint=&file_hint_wdp }, + { .enable=0, .file_hint=&file_hint_win }, { .enable=0, .file_hint=&file_hint_wks }, { .enable=0, .file_hint=&file_hint_wmf }, { .enable=0, .file_hint=&file_hint_wnk }, diff --git a/src/file_win.c b/src/file_win.c new file mode 100644 index 00000000..eb390cb2 --- /dev/null +++ b/src/file_win.c @@ -0,0 +1,95 @@ +/* + + File: file_win.c + + Copyright (C) 2009 Christophe GRENIER + + 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 +#endif +#ifdef HAVE_STDLIB_H +#include +#endif +#ifdef HAVE_STRING_H +#include +#endif +#include +#include "types.h" +#include "filegen.h" +#include "file_txt.h" +#include "common.h" + +static void register_header_check_win(file_stat_t *file_stat); +static int header_check_win(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); +static int data_check_win(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery); + +const file_hint_t file_hint_win= { + .extension="win", + .description="Opera preferences", + .min_header_distance=0, + .max_filesize=PHOTOREC_MAX_FILE_SIZE, + .recover=1, + .enable_by_default=1, + .register_header_check=®ister_header_check_win +}; + +static const unsigned char win_header[31]= { + 0xef, 0xbb, 0xbf, 'O' , 'p' , 'e' , 'r' , 'a' , + ' ' , 'P' , 'r' , 'e' , 'f' , 'e' , 'r' , 'e' , + 'n' , 'c' , 'e' , 's' , ' ' , 'v' , 'e' , 'r' , + 's' , 'i' , 'o' , 'n' , ' ' , '2' , '.' +}; + +static void register_header_check_win(file_stat_t *file_stat) +{ + register_header_check(0, win_header, sizeof(win_header), &header_check_win, file_stat); +} + +static int header_check_win(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) +{ + if(memcmp(buffer, win_header, sizeof(win_header))==0) + { + reset_file_recovery(file_recovery_new); + file_recovery_new->extension=file_hint_win.extension; + file_recovery_new->data_check=&data_check_win; + file_recovery_new->file_check=&file_check_size; + return 1; + } + return 0; +} + +static int data_check_win(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery) +{ + unsigned int i; + char *buffer_lower=(char *)MALLOC(buffer_size+16); + unsigned int offset=0; + if(file_recovery->calculated_file_size==0) + offset=3; + i=UTF2Lat((unsigned char*)buffer_lower, &buffer[buffer_size/2+offset], buffer_size/2-offset); + if(i=10) + file_recovery->calculated_file_size=file_recovery->file_size+offset+i; + free(buffer_lower); + return 2; + } + free(buffer_lower); + file_recovery->calculated_file_size=file_recovery->file_size+(buffer_size/2); + return 1; +}