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-rw-r--r--src/Makefile.am1
-rw-r--r--src/file_bvr.c79
-rw-r--r--src/file_list.c2
3 files changed, 82 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index b2bfd88..6da1704 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -66,6 +66,7 @@ file_C = filegen.c \
file_bld.c \
file_bmp.c \
file_bpg.c \
+ file_bvr.c \
file_bz2.c \
file_c4d.c \
file_cab.c \
diff --git a/src/file_bvr.c b/src/file_bvr.c
new file mode 100644
index 0000000..1b4a43d
--- /dev/null
+++ b/src/file_bvr.c
@@ -0,0 +1,79 @@
+/*
+
+ File: file_bvr.c
+
+ Copyright (C) 2018 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_bvr(file_stat_t *file_stat);
+
+const file_hint_t file_hint_bvr= {
+ .extension="bvr",
+ .description="Blue Iris DVR",
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_bvr
+};
+
+static data_check_t data_check_bvr(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery)
+{
+ while(file_recovery->calculated_file_size + buffer_size/2 >= file_recovery->file_size &&
+ file_recovery->calculated_file_size + 16 < file_recovery->file_size + buffer_size/2)
+ {
+ const unsigned int i=file_recovery->calculated_file_size - file_recovery->file_size + buffer_size/2;
+ const uint32_t *valp=(const uint32_t *)&buffer[i+12];
+ if(memcmp(&buffer[i], "BLUE", 4) != 0)
+ return DC_STOP;
+ file_recovery->calculated_file_size+=0x20 + *valp;
+ if(*valp == 0)
+ return DC_STOP;
+ }
+ return DC_CONTINUE;
+}
+
+static int header_check_bvr(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(file_recovery->file_stat!=NULL &&
+ file_recovery->file_stat->file_hint==&file_hint_bvr)
+ {
+ header_ignored(file_recovery_new);
+ return 0;
+ }
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension=file_hint_bvr.extension;
+ file_recovery_new->data_check=&data_check_bvr;
+ file_recovery_new->file_check=&file_check_size;
+ return 1;
+}
+
+static void register_header_check_bvr(file_stat_t *file_stat)
+{
+ static const unsigned char bvrheader[8]= { 'B', 'L', 'U', 'E', 0x20, 0x00, 0x10, 0x00};
+ register_header_check(0, bvrheader, sizeof(bvrheader), &header_check_bvr, file_stat);
+}
diff --git a/src/file_list.c b/src/file_list.c
index aee0015..af97165 100644
--- a/src/file_list.c
+++ b/src/file_list.c
@@ -67,6 +67,7 @@ extern const file_hint_t file_hint_bkf;
extern const file_hint_t file_hint_blend;
extern const file_hint_t file_hint_bmp;
extern const file_hint_t file_hint_bpg;
+extern const file_hint_t file_hint_bvr;
extern const file_hint_t file_hint_bz2;
extern const file_hint_t file_hint_c4d;
extern const file_hint_t file_hint_cab;
@@ -398,6 +399,7 @@ file_enable_t list_file_enable[]=
{ .enable=0, .file_hint=&file_hint_blend },
{ .enable=0, .file_hint=&file_hint_bmp },
{ .enable=0, .file_hint=&file_hint_bpg },
+ { .enable=0, .file_hint=&file_hint_bvr },
{ .enable=0, .file_hint=&file_hint_bz2 },
{ .enable=0, .file_hint=&file_hint_c4d },
{ .enable=0, .file_hint=&file_hint_cab },