Import latest version of Ajisai into src/ssl; once this hits mainline

I'll officially kill off Ajisai (instead of it just lingering as a zombine
as it is currently).

Apparently I broke something (or multiple things) during the import process;
servers crash and clients gets MAC errors on connect.

1 files changed, 46 insertions, 0 deletions

diff --git a/src/ssl/tls_alerts.h b/src/ssl/tls_alerts.h
new file mode 100644
index 000000000..9051e052f
--- /dev/null
+++ b/src/ssl/tls_alerts.h
@@ -0,0 +1,46 @@
+/**
+* Alert Message Header File
+* (C) 2004-2006 Jack Lloyd
+*
+* Released under the terms of the Botan license
+*/
+
+#ifndef BOTAN_ALERT_H__
+#define BOTAN_ALERT_H__
+
+#include <botan/exceptn.h>
+
+namespace Botan {
+
+/**
+* SSL/TLS Alert Message
+*/
+class BOTAN_DLL Alert
+   {
+   public:
+      bool is_fatal() const { return fatal; }
+      Alert_Type type() const { return type_code; }
+
+      /**
+      * Deserialize an Alert message
+      */
+      Alert(const MemoryRegion<byte>& buf)
+         {
+         if(buf.size() != 2)
+            throw Decoding_Error("Alert: Bad size for alert message");
+
+         if(buf[0] == 1)      fatal = false;
+         else if(buf[0] == 2) fatal = true;
+         else
+            throw Decoding_Error("Alert: Bad type code for alert level");
+
+         type_code = static_cast<Alert_Type>(buf[1]);
+         }
+   private:
+      bool fatal;
+      Alert_Type type_code;
+   };
+
+}
+
+#endif