From 619dec51f630116843a7d83c0c085abc7e3da688 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@anytun.org>
Date: Mon, 25 Feb 2008 19:00:43 +0000
Subject: fixed resize issue with buffer->xPacket

---
 buffer.cpp          | 2 ++
 buffer.h            | 2 ++
 encryptedPacket.cpp | 9 +++++++--
 encryptedPacket.h   | 2 ++
 plainPacket.cpp     | 7 ++++++-
 plainPacket.h       | 2 ++
 6 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/buffer.cpp b/buffer.cpp
index cea8d2c..91ad950 100644
--- a/buffer.cpp
+++ b/buffer.cpp
@@ -161,6 +161,8 @@ void Buffer::setLength(u_int32_t new_length)
 
     old_buf = &buf_[old_length];
     std::memset(old_buf, 0, real_length_ - old_length);
+
+    reinit();
   }
   else
     length_ = new_length;
diff --git a/buffer.h b/buffer.h
index 063be91..df17953 100644
--- a/buffer.h
+++ b/buffer.h
@@ -61,6 +61,8 @@ public:
   operator u_int8_t*();
 
 protected:
+  virtual void reinit() {};
+
   u_int8_t *buf_;
   u_int32_t length_;
   u_int32_t real_length_;
diff --git a/encryptedPacket.cpp b/encryptedPacket.cpp
index a3e5886..b618f99 100644
--- a/encryptedPacket.cpp
+++ b/encryptedPacket.cpp
@@ -113,8 +113,13 @@ u_int32_t EncryptedPacket::getPayloadLength() const
 void EncryptedPacket::setPayloadLength(u_int32_t payload_length)
 {
   Buffer::setLength(payload_length + sizeof(struct HeaderStruct));
-  
-  // depending on allow_realloc buf_ may point to another address
+      // depending on allow_realloc buf_ may point to another address
+      // therefore in this case reinit() gets called by Buffer::setLength()
+}
+
+void EncryptedPacket::reinit()
+{
+  Buffer::reinit();
   header_ = reinterpret_cast<struct HeaderStruct*>(buf_);
   payload_ = buf_ + sizeof(struct HeaderStruct);    // TODO: fix auth_tag stuff
   auth_tag_ = NULL;                                 // TODO: fix auth_tag stuff
diff --git a/encryptedPacket.h b/encryptedPacket.h
index 0b934f6..bb143f9 100644
--- a/encryptedPacket.h
+++ b/encryptedPacket.h
@@ -125,6 +125,8 @@ private:
   EncryptedPacket();
   EncryptedPacket(const EncryptedPacket &src);
 
+  void reinit();
+
   struct HeaderStruct
   {
     seq_nr_t seq_nr;
diff --git a/plainPacket.cpp b/plainPacket.cpp
index d6f2e5f..37c4338 100644
--- a/plainPacket.cpp
+++ b/plainPacket.cpp
@@ -65,8 +65,13 @@ u_int32_t PlainPacket::getPayloadLength() const
 void PlainPacket::setPayloadLength(u_int32_t payload_length)
 {
   Buffer::setLength(payload_length + sizeof(payload_type_t));
+      // depending on allow_realloc buf_ may point to another address
+      // therefore in this case reinit() gets called by Buffer::setLength()
+}
 
-  // depending on allow_realloc buf_ may point to another address
+void PlainPacket::reinit()
+{
+  Buffer::reinit();
   payload_type_ = reinterpret_cast<payload_type_t*>(buf_);
   payload_ = buf_ + sizeof(payload_type_t);
 }
diff --git a/plainPacket.h b/plainPacket.h
index 54c387a..e44df32 100644
--- a/plainPacket.h
+++ b/plainPacket.h
@@ -90,6 +90,8 @@ private:
   PlainPacket();
   PlainPacket(const PlainPacket &src);
 
+  void reinit();
+
   payload_type_t* payload_type_;
   u_int8_t* payload_;
 };
-- 
cgit v1.2.3