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/*
* Next Protocol Negotiation
* (C) 2012 Jack Lloyd
*
* Released under the terms of the Botan license
*/
#include <botan/internal/tls_messages.h>
#include <botan/internal/tls_extensions.h>
#include <botan/internal/tls_reader.h>
#include <botan/internal/tls_handshake_io.h>
namespace Botan {
namespace TLS {
Next_Protocol::Next_Protocol(Handshake_IO& io,
Handshake_Hash& hash,
const std::string& protocol) :
m_protocol(protocol)
{
hash.update(io.send(*this));
}
Next_Protocol::Next_Protocol(const std::vector<byte>& buf)
{
TLS_Data_Reader reader(buf);
m_protocol = reader.get_string(1, 0, 255);
reader.get_range_vector<byte>(1, 0, 255); // padding, ignored
}
std::vector<byte> Next_Protocol::serialize() const
{
std::vector<byte> buf;
append_tls_length_value(buf,
reinterpret_cast<const byte*>(m_protocol.data()),
m_protocol.size(),
1);
const byte padding_len = 32 - ((m_protocol.size() + 2) % 32);
buf.push_back(padding_len);
for(size_t i = 0; i != padding_len; ++i)
buf.push_back(0);
return buf;
}
}
}
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