csn1: fix csnStreamDecoder(): update bit_offset in CSN_EXIST{_LH}

Found while doing differential analysis (comparison against the
original implementation from Wireshark).

Change-Id: Ibd0b7400d78f7873c2a8d45267332f511b5c6fbb

1 files changed, 1 insertions, 0 deletions

diff --git a/src/csn1.c b/src/csn1.c
index 31b8e00f..2f053272 100644
--- a/src/csn1.c
+++ b/src/csn1.c
@@ -950,6 +950,7 @@ csnStreamDecoder(csnStream_t* ar, const CSN_DESCR* pDescr, struct bitvec *vector
         *pui8 = fExist;
         LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8);
         pDescr++;
+        bit_offset++;
         remaining_bits_len -= 1;
 
         if (!fExist)