1 files changed, 55 insertions, 0 deletions
diff --git a/src/tls/next_protocol.cpp b/src/tls/next_protocol.cpp
new file mode 100644
index 000000000..adf9acbe9
--- /dev/null
+++ b/src/tls/next_protocol.cpp
@@ -0,0 +1,55 @@
+/*
+* Next Protocol Negotation
+* (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/tls_record.h>
+
+namespace Botan {
+
+namespace TLS {
+
+Next_Protocol::Next_Protocol(Record_Writer& writer,
+                             Handshake_Hash& hash,
+                             const std::string& protocol) :
+   m_protocol(protocol)
+   {
+   hash.update(writer.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;
+   }
+
+}
+
+}