tls_alerts.h

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/*
* Alert Message
* (C) 2004-2006 Jack Lloyd
*
* Released under the terms of the Botan license
*/
 
#ifndef BOTAN_TLS_ALERT_H__
#define BOTAN_TLS_ALERT_H__
 
#include <botan/tls_exceptn.h>
 
namespace Botan {
 
/**
* SSL/TLS Alert Message
*/
class Alert
   {
   public:
      /**
      * @return if this alert is a fatal one or not
      */
      bool is_fatal() const { return fatal; }
 
      /**
      * @return type of alert
      */
      Alert_Type type() const { return type_code; }
 
      /**
      * Deserialize an Alert message
      * @param buf the serialized alert
      */
      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