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diff --git a/mysql/extra/yassl/taocrypt/include/block.hpp b/mysql/extra/yassl/taocrypt/include/block.hpp
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+/*
+   Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
+
+   This program 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; version 2 of the License.
+
+   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; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+   MA  02110-1301  USA.
+*/
+
+
+/* block.hpp provides word and byte blocks with configurable allocators
+*/
+
+
+#ifndef TAO_CRYPT_BLOCK_HPP
+#define TAO_CRYPT_BLOCK_HPP
+
+#include "misc.hpp"
+#include <string.h>         // memcpy
+#include <stddef.h>         // ptrdiff_t
+
+#ifdef USE_SYS_STL
+    #include <algorithm>
+#else
+    #include "algorithm.hpp"
+#endif
+
+
+namespace STL = STL_NAMESPACE;
+
+
+namespace TaoCrypt {
+
+
+// a Base class for Allocators
+template<class T>
+class AllocatorBase
+{
+public:
+    typedef T         value_type;
+    typedef size_t    size_type;
+    typedef ptrdiff_t difference_type;
+    typedef T*        pointer;
+    typedef const T*  const_pointer;
+    typedef T&        reference;
+    typedef const T&  const_reference;
+
+    pointer       address(reference r) const {return (&r);}
+    const_pointer address(const_reference r) const {return (&r); }
+    void          construct(pointer p, const T& val) {new (p) T(val);}
+    void          destroy(pointer p) {p->~T();}
+    size_type     max_size() const {return ~size_type(0)/sizeof(T);}
+protected:
+};
+
+
+// General purpose realloc
+template<typename T, class A>
+typename A::pointer StdReallocate(A& a, T* p, typename A::size_type oldSize,
+                                  typename A::size_type newSize, bool preserve)
+{
+    if (oldSize == newSize)
+        return p;
+
+    if (preserve) {
+        A b = A();
+        typename A::pointer newPointer = b.allocate(newSize, 0);
+        memcpy(newPointer, p, sizeof(T) * min(oldSize, newSize));
+        a.deallocate(p, oldSize);
+        STL::swap(a, b);
+        return newPointer;
+    }
+    else {
+        a.deallocate(p, oldSize);
+        return a.allocate(newSize, 0);
+    }
+}
+
+
+// Allocator that zeros out memory on deletion
+template <class T>
+class AllocatorWithCleanup : public AllocatorBase<T>
+{
+public:
+    typedef typename AllocatorBase<T>::pointer   pointer;
+    typedef typename AllocatorBase<T>::size_type size_type;
+
+    pointer allocate(size_type n, const void* = 0)
+    {
+        if (n > this->max_size())
+            return 0;
+        if (n == 0)
+            return 0;
+        return NEW_TC T[n];
+    }
+
+    void deallocate(void* p, size_type n)
+    {
+        memset(p, 0, n * sizeof(T));
+        tcArrayDelete((T*)p);
+    }
+
+    pointer reallocate(T* p, size_type oldSize, size_type newSize,
+                       bool preserve)
+    {
+        return StdReallocate(*this, p, oldSize, newSize, preserve);
+    }
+
+    // VS.NET STL enforces the policy of "All STL-compliant allocators have to
+    // provide a template class member called rebind".
+    template <class U> struct rebind { typedef AllocatorWithCleanup<U> other;};
+};
+
+
+// Block class template
+template<typename T, class A = AllocatorWithCleanup<T> >
+class Block {
+public:
+    explicit Block(word32 s = 0) : sz_(s), buffer_(allocator_.allocate(sz_)) 
+                    { CleanNew(sz_); }
+
+    Block(const T* buff, word32 s) : sz_(s), buffer_(allocator_.allocate(sz_))
+        { memcpy(buffer_, buff, sz_ * sizeof(T)); }
+
+    Block(const Block& that) : sz_(that.sz_), buffer_(allocator_.allocate(sz_))
+        { memcpy(buffer_, that.buffer_, sz_ * sizeof(T)); }
+
+    Block& operator=(const Block& that) {
+        Block tmp(that);
+        Swap(tmp);
+        return *this;
+    }
+
+    T& operator[] (word32 i) { return buffer_[i]; }
+    const T& operator[] (word32 i) const { return buffer_[i]; }
+
+    T* operator+ (word32 i) { return buffer_ + i; }
+    const T* operator+ (word32 i) const { return buffer_ + i; }
+
+    word32 size() const { return sz_; }
+
+    T* get_buffer() const { return buffer_; }
+    T* begin()      const { return get_buffer(); }
+
+    void CleanGrow(word32 newSize)
+    {
+        if (newSize > sz_) {
+            buffer_ = allocator_.reallocate(buffer_, sz_, newSize, true);
+            memset(buffer_ + sz_, 0, (newSize - sz_) * sizeof(T));
+            sz_ = newSize;
+        }
+    }
+
+    void CleanNew(word32 newSize)
+    {
+        New(newSize);
+        memset(buffer_, 0, sz_ * sizeof(T));
+    }
+
+    void New(word32 newSize)
+    {
+        buffer_ = allocator_.reallocate(buffer_, sz_, newSize, false);
+        sz_ = newSize;
+    }
+
+    void resize(word32 newSize)
+    {
+        buffer_ = allocator_.reallocate(buffer_, sz_, newSize, true);
+        sz_ = newSize;
+    }
+
+    void Swap(Block& other) {
+        STL::swap(sz_, other.sz_);
+        STL::swap(buffer_, other.buffer_);
+        STL::swap(allocator_, other.allocator_);
+    }
+
+    ~Block() { allocator_.deallocate(buffer_, sz_); }
+private:
+    A      allocator_;
+    word32 sz_;     // size in Ts
+    T*     buffer_;
+};
+
+
+typedef Block<byte>   ByteBlock;
+typedef Block<word>   WordBlock;
+typedef Block<word32> Word32Block;
+
+
+} // namespace
+
+#endif // TAO_CRYPT_BLOCK_HPP