Make Alert a first class object ala Version. Move the alert codes into

the Alert class for namespacing.

1 files changed, 46 insertions, 0 deletions

diff --git a/src/tls/tls_alert.cpp b/src/tls/tls_alert.cpp
new file mode 100644
index 000000000..63cac9d79
--- /dev/null
+++ b/src/tls/tls_alert.cpp
@@ -0,0 +1,46 @@
+/*
+* Alert Message
+* (C) 2004-2006,2011 Jack Lloyd
+*
+* Released under the terms of the Botan license
+*/
+
+#include <botan/tls_alert.h>
+#include <botan/exceptn.h>
+
+namespace Botan {
+
+namespace TLS {
+
+Alert::Alert(const MemoryRegion<byte>& buf)
+   {
+   if(buf.size() != 2)
+      throw Decoding_Error("Alert: Bad size " + to_string(buf.size()) +
+                           " for alert message");
+
+   if(buf[0] == 1)      fatal = false;
+   else if(buf[0] == 2) fatal = true;
+   else
+      throw Decoding_Error("Alert: Bad code for alert level");
+
+   const byte dc = buf[1];
+
+   /*
+   * This is allowed by the specification but is not allocated and we're
+   * using it internally as a special 'no alert' type.
+   */
+   if(dc == 255)
+      throw Decoding_Error("Alert: description code 255, rejecting");
+
+   type_code = static_cast<Type>(dc);
+   }
+
+std::string Alert::type_string() const
+   {
+   return "";
+   }
+
+
+}
+
+}