summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorChristophe Grenier <grenier@cgsecurity.org>2009-10-25 18:40:07 +0100
committerChristophe Grenier <grenier@cgsecurity.org>2009-10-25 18:40:07 +0100
commit71f416eccc2dc530222b8343fb1f1d027dccd8be (patch)
tree6d39b9b785937e78dbc7d3effcadec08213ea15e
parentb646a5ff154141badef7bb1c9ee7bd5517906d4a (diff)
PhotoRec: recover Opera preferences .win files
-rw-r--r--src/Makefile.am1
-rw-r--r--src/file_list.c2
-rw-r--r--src/file_win.c95
3 files changed, 98 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index cb80332..596ef7c 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 684d1a7..64d4e67 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 0000000..eb390cb
--- /dev/null
+++ b/src/file_win.c
@@ -0,0 +1,95 @@
+/*
+
+ File: file_win.c
+
+ Copyright (C) 2009 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_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#include <stdio.h>
+#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=&register_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<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;
+}