WL#2286 Compile MySQL w/YASSL support

yaSSL-0.9.7 library bundled.


BUILD/Makefile.am:
  compile-pentium-debug-yassl added to distribution.
Makefile.am:
  Added yassl_dir to SUBDIRS. It contains path to yassl distribution if --with-yassl
  specified. It is empty otherwise.
configure.in:
  yaSSL CHECK-function call.
extra/Makefile.am:
  yaSSL added to distribution.
include/violite.h:
  YASSL_MYSQL_COMPATIBLE macro must be defined to make yassl headers compatible.

1 files changed, 93 insertions, 0 deletions

diff --git a/extra/yassl/taocrypt/src/arc4.cpp b/extra/yassl/taocrypt/src/arc4.cpp
new file mode 100644
index 00000000000..1e521b48f0c
--- /dev/null
+++ b/extra/yassl/taocrypt/src/arc4.cpp
@@ -0,0 +1,93 @@
+/* arc4.cpp                                
+ *
+ * Copyright (C) 2003 Sawtooth Consulting Ltd.
+ *
+ * This file is part of yaSSL.
+ *
+ * yaSSL 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * yaSSL 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+/* based on Wei Dai's arc4.cpp from CryptoPP */
+
+#include "runtime.hpp"
+#include "arc4.hpp"
+
+
+namespace TaoCrypt {
+
+void ARC4::SetKey(const byte* key, word32 length)
+{
+    x_ = 1;
+    y_ = 0;
+
+    word32 i;
+
+    for (i = 0; i < STATE_SIZE; i++)
+        state_[i] = i;
+
+    word32 keyIndex = 0, stateIndex = 0;
+
+    for (i = 0; i < STATE_SIZE; i++) {
+        word32 a = state_[i];
+        stateIndex += key[keyIndex] + a;
+        stateIndex &= 0xFF;
+        state_[i] = state_[stateIndex];
+        state_[stateIndex] = a;
+
+        if (++keyIndex >= length)
+            keyIndex = 0;
+    }
+}
+
+
+// local
+namespace {
+
+inline unsigned int MakeByte(word32& x, word32& y, byte* s)
+{
+    word32 a = s[x];
+    y = (y+a) & 0xff;
+
+    word32 b = s[y];
+    s[x] = b;
+    s[y] = a;
+    x = (x+1) & 0xff;
+
+    return s[(a+b) & 0xff];
+}
+
+} // namespace
+
+
+void ARC4::Process(byte* out, const byte* in, word32 length)
+{
+    if (length == 0) return;
+
+    byte *const s = state_;
+    word32 x = x_;
+    word32 y = y_;
+
+    if (in == out)
+        while (length--)
+            *out++ ^= MakeByte(x, y, s);
+    else
+        while(length--)
+            *out++ = *in++ ^ MakeByte(x, y, s);
+    x_ = x;
+    y_ = y;
+}
+
+
+}  // namespace