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-rw-r--r--src/Makefile.am1
-rw-r--r--src/file_list.c2
-rw-r--r--src/file_xar.c78
3 files changed, 81 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index aee0550..04a960e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -309,6 +309,7 @@ file_C = filegen.c \
file_wtv.c \
file_wv.c \
file_x3f.c \
+ file_xar.c \
file_xcf.c \
file_xfi.c \
file_xfs.c \
diff --git a/src/file_list.c b/src/file_list.c
index 50cb3a8..c507119 100644
--- a/src/file_list.c
+++ b/src/file_list.c
@@ -313,6 +313,7 @@ extern const file_hint_t file_hint_wpd;
extern const file_hint_t file_hint_wtv;
extern const file_hint_t file_hint_wv;
extern const file_hint_t file_hint_x3f;
+extern const file_hint_t file_hint_xar;
extern const file_hint_t file_hint_xcf;
extern const file_hint_t file_hint_xfi;
extern const file_hint_t file_hint_xfs;
@@ -612,6 +613,7 @@ file_enable_t list_file_enable[]=
{ .enable=0, .file_hint=&file_hint_wtv },
{ .enable=0, .file_hint=&file_hint_wv },
{ .enable=0, .file_hint=&file_hint_x3f },
+ { .enable=0, .file_hint=&file_hint_xar },
{ .enable=0, .file_hint=&file_hint_xcf },
{ .enable=0, .file_hint=&file_hint_xfi },
{ .enable=0, .file_hint=&file_hint_xfs },
diff --git a/src/file_xar.c b/src/file_xar.c
new file mode 100644
index 0000000..54ed675
--- /dev/null
+++ b/src/file_xar.c
@@ -0,0 +1,78 @@
+/*
+
+ File: file_xar.c
+
+ Copyright (C) 2015 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"
+#include "common.h"
+
+static void register_header_check_xar(file_stat_t *file_stat);
+
+const file_hint_t file_hint_xar= {
+ .extension="xar",
+ .description="xar archive",
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_xar
+};
+
+struct xar_header
+{
+ uint32_t magic;
+ uint16_t size;
+ uint16_t version;
+ uint64_t toc_length_compressed;
+ uint64_t toc_length_uncompressed;
+ uint32_t cksum_alg;
+ /* A nul-terminated, zero-padded to multiple of 4, message digest name
+ * appears here if cksum_alg is 3 which must not be empty ("") or "none".
+ */
+};
+
+static int header_check_xar(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 struct xar_header *hdr=(const struct xar_header *)buffer;
+ if(be16(hdr->version) > 1)
+ return 0;
+ if(be16(hdr->size) < 28)
+ return 0;
+ if(be16(hdr->cksum_alg)==3 && (be16(hdr->size) <32 ||be16(hdr->size)%4!=0))
+ return 0;
+ if(be16(hdr->cksum_alg)>3)
+ return 0;
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension=file_hint_xar.extension;
+ file_recovery_new->min_filesize=be16(hdr->size) + be64(hdr->toc_length_compressed);
+ return 1;
+}
+
+static void register_header_check_xar(file_stat_t *file_stat)
+{
+ register_header_check(0, "xar!", 4, &header_check_xar, file_stat);
+}