From 9c92647ee3accffacd5b42ac368ec9267bef405e Mon Sep 17 00:00:00 2001
From: Joachim Metz <joachim.metz@gmail.com>
Date: Mon, 19 Apr 2021 20:06:49 +0200
Subject: [PATCH] Changes to force TZ to UTC #75

---
 class_parser.py |  2 +-
 dpkg/changelog  |  4 ++--
 tsk3.cpp        | 21 ++++++++++++++++++++-
 version.txt     |  2 +-
 4 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/class_parser.py b/class_parser.py
index a60f1a9..fbd9332 100644
--- a/class_parser.py
+++ b/class_parser.py
@@ -235,7 +235,7 @@
 DEBUG = 0
 
 # The pytsk3 version.
-VERSION = "20210327"
+VERSION = "20210419"
 
 # These functions are used to manage library memory.
 FREE = "aff4_free"
diff --git a/dpkg/changelog b/dpkg/changelog
index e538ff8..49db45f 100644
--- a/dpkg/changelog
+++ b/dpkg/changelog
@@ -1,5 +1,5 @@
-pytsk3 (20210327-1) unstable; urgency=low
+pytsk3 (20210419-1) unstable; urgency=low
 
   * Auto-generated
 
- -- Joachim Metz <joachim.metz@gmail.com>  Sat, 27 Mar 2021 13:12:25 -0100
+ -- Joachim Metz <joachim.metz@gmail.com>  Mon, 19 Apr 2021 20:05:49 -0100
diff --git a/tsk3.cpp b/tsk3.cpp
index f67586e..18eca45 100644
--- a/tsk3.cpp
+++ b/tsk3.cpp
@@ -14,14 +14,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 #include "tsk3.h"
 
+#include <time.h>
+
 #if defined( TSK_MULTITHREAD_LIB )
+
 extern "C" {
 extern void tsk_init_lock(tsk_lock_t * lock);
 extern void tsk_deinit_lock(tsk_lock_t * lock);
 }
-#endif
+
+#endif /* defined( TSK_MULTITHREAD_LIB ) */
 
 /* Prototypes for IMG_INFO hooks
  * Note that IMG_INFO_read is called by the SleuthKit the Img_Info_read
@@ -690,6 +695,20 @@ VIRTUAL(Volume_Info, Object) {
 
 
 void tsk_init() {
+
+  // libtsk uses mktime and localtime that rely on the TZ environment variable
+  // however that leads to inconsistent behavior with different TZ values.
+  // Hence that we force TZ to be UTC, when possible.
+#if defined( _MSC_VER )
+  _putenv_s("TZ", "UTC");
+  _tzset();
+
+  // Some installations of MinGW do not support setenv
+#elif !defined( __MINGW32__ )
+  setenv("TZ", "UTC", 1);
+  tzset();
+#endif
+
   //tsk_verbose++;
   Img_Info_init((Object)&__Img_Info);
   FS_Info_init((Object)&__FS_Info);
diff --git a/version.txt b/version.txt
index b667f88..23ecfbe 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-20210327
\ No newline at end of file
+20210419
\ No newline at end of file