From 58a41d2ff276f917e8aaa94ca94751bb326e9bb0 Mon Sep 17 00:00:00 2001
From: Ludwig Ortmann <ludwig.ortmann@fu-berlin.de>
Date: Wed, 27 Aug 2014 09:53:51 +0200
Subject: [PATCH] sys/cbor: set isdst to undefined after strptime

CBOR does not specify the daylight saving time adjustment.
---
 sys/cbor/cbor.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/cbor/cbor.c b/sys/cbor/cbor.c
index 1753dc3411..c370713e6a 100644
--- a/sys/cbor/cbor.c
+++ b/sys/cbor/cbor.c
@@ -694,6 +694,8 @@ size_t cbor_deserialize_date_time(const cbor_stream_t *stream, size_t offset, st
         return 0;
     }
 
+    val->tm_isdst = -1; /* not set by strptime(), undefined in CBOR */
+
     if (mktime(val) == -1) {
         return 0;
     }