From 51c485f52327675718b227fc5d9f8e78d8bdebd9 Mon Sep 17 00:00:00 2001
From: John Safranek <john@wolfssl.com>
Date: Tue, 8 Oct 2013 14:59:59 -0700
Subject: [PATCH] 1. Added a couple missing checks for NULL pointers in DTLS
 code. 2. Fixed compiler warning under Windows.

---
 src/internal.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/internal.c b/src/internal.c
index 7f783240b..f6a287ed1 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -2073,8 +2073,10 @@ DtlsMsg* DtlsMsgStore(DtlsMsg* head, word32 seq, const byte* data,
         DtlsMsg* cur = DtlsMsgFind(head, seq);
         if (cur == NULL) {
             cur = DtlsMsgNew(dataSz, heap);
-            DtlsMsgSet(cur, seq, data, type, fragOffset, fragSz);
-            head = DtlsMsgInsert(head, cur);
+            if (cur != NULL) {
+                DtlsMsgSet(cur, seq, data, type, fragOffset, fragSz);
+                head = DtlsMsgInsert(head, cur);
+            }
         }
         else {
             DtlsMsgSet(cur, seq, data, type, fragOffset, fragSz);
@@ -3742,7 +3744,8 @@ static int DoDtlsHandShakeMsg(CYASSL* ssl, byte* input, word32* inOutIdx,
                         size, type, fragOffset, fragSz, ssl->heap);
         *inOutIdx += fragSz;
         ret = 0;
-        if (ssl->dtls_msg_list->fragSz >= ssl->dtls_msg_list->sz)
+        if (ssl->dtls_msg_list != NULL &&
+            ssl->dtls_msg_list->fragSz >= ssl->dtls_msg_list->sz)
             ret = DtlsMsgDrain(ssl);
     }
     else {
@@ -7654,6 +7657,8 @@ static void PickHashSigAlgo(CYASSL* ssl,
         int    ret = 0;
         byte   doUserRsa = 0;
 
+        (void)doUserRsa;
+
         #ifdef HAVE_PK_CALLBACKS
             #ifndef NO_RSA
                 if (ssl->ctx->RsaEncCb)