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/*
* Alert Message
* (C) 2004-2006,2011 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 {
namespace TLS {
/**
* 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 " + 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];
if(dc == 255)
throw Decoding_Error("Alert: description code 255, rejecting");
type_code = static_cast<Alert_Type>(dc);
}
private:
bool fatal;
Alert_Type type_code;
};
}
}
#endif
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