From b8766a2041d57a3aa49c3855902953f8de0b0ec1 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@anytun.org>
Date: Sat, 23 Feb 2008 23:05:43 +0000
Subject: - keyderivation and cipher should work now   however it needs further
 testing

- rewrite of Buffer and Packets
---
 plainPacket.cpp | 54 +++++++++++++++---------------------------------------
 1 file changed, 15 insertions(+), 39 deletions(-)

(limited to 'plainPacket.cpp')

diff --git a/plainPacket.cpp b/plainPacket.cpp
index 3ce1521..0906fa2 100644
--- a/plainPacket.cpp
+++ b/plainPacket.cpp
@@ -33,43 +33,14 @@
 #include <arpa/inet.h>
 
 #include "datatypes.h"
-
 #include "plainPacket.h"
 
 
-
-PlainPacket::~PlainPacket()
-{
-	buf_=complete_payload_;
-	length_=max_length_;
-}
-
-PlainPacket::PlainPacket(u_int32_t max_payload_length) : Buffer(max_payload_length + sizeof(payload_type_t))
+PlainPacket::PlainPacket(u_int32_t payload_length, bool allow_realloc) : Buffer(payload_length + sizeof(payload_type_t), allow_realloc)
 {
-  payload_type_ = NULL;
-	splitPayload();
-}
-
-void PlainPacket::splitPayload()
-{
-  complete_payload_length_ = length_;
-	complete_payload_ = buf_;
-
   payload_type_ = reinterpret_cast<payload_type_t*>(buf_);
-  buf_ += sizeof(payload_type_t);
-  length_ -= sizeof(payload_type_t);
-  max_length_ = length_;
-}
-
-void PlainPacket::setCompletePayloadLength(u_int32_t payload_length)
-{
-	complete_payload_length_ = payload_length;
-	length_=complete_payload_length_-sizeof(payload_type_t);
-}
-
-u_int32_t PlainPacket::getCompletePayloadLength()
-{
-	return complete_payload_length_;
+  payload_ = buf_ + sizeof(payload_type_t);
+  *payload_type_ = 0;
 }
 
 payload_type_t PlainPacket::getPayloadType() const
@@ -83,16 +54,21 @@ void PlainPacket::setPayloadType(payload_type_t payload_type)
     *payload_type_ = PAYLOAD_TYPE_T_HTON(payload_type);
 }
 
-void PlainPacket::setLength(u_int32_t length)
+u_int32_t PlainPacket::getPayloadLength() const
+{
+  return (length_ > sizeof(payload_type_t)) ? (length_ - sizeof(payload_type_t)) : 0;
+}
+    
+void PlainPacket::setPayloadLength(u_int32_t payload_length)
 {
-  if(length > max_length_)
-    throw std::out_of_range("can't set length greater then size ofsize of  allocated memory");
+  Buffer::setLength(payload_length + sizeof(payload_type_t));
 
-  length_ = length;
-	complete_payload_length_ = length_ + sizeof(payload_type_t);
+  // depending on allow_realloc buf_ may point to another address
+  payload_type_ = reinterpret_cast<payload_type_t*>(buf_);
+  payload_ = buf_ + sizeof(payload_type_t);
 }
 
-u_int32_t PlainPacket::getMaxLength() const
+u_int8_t* PlainPacket::getPayload()
 {
-  return max_length_;
+  return payload_;
 }
-- 
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