Merge branch 'nxcomp'

1 files changed, 113 insertions, 0 deletions

diff --git a/nxcomp/ClearArea.cpp b/nxcomp/ClearArea.cpp
new file mode 100644
index 000000000..223a3b3e1
--- /dev/null
+++ b/nxcomp/ClearArea.cpp
@@ -0,0 +1,113 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2010 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMP, NX protocol compression and NX extensions to this software     */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of Medialogic S.p.A.                   */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include "ClearArea.h"
+
+#include "ClientCache.h"
+
+#include "EncodeBuffer.h"
+#include "DecodeBuffer.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+#undef  DUMP
+
+//
+// Here are the methods to handle messages' content.
+//
+
+int ClearAreaStore::parseIdentity(Message *message, const unsigned char *buffer,
+                                      unsigned int size, int bigEndian) const
+{
+  ClearAreaMessage *clearArea = (ClearAreaMessage *) message;
+
+  //
+  // Here is the fingerprint.
+  //
+
+  clearArea -> exposures = *(buffer + 1); 
+
+  clearArea -> window = GetULONG(buffer + 4, bigEndian); 
+
+  clearArea -> x      = GetUINT(buffer + 8, bigEndian);
+  clearArea -> y      = GetUINT(buffer + 10, bigEndian);
+  clearArea -> width  = GetUINT(buffer + 12, bigEndian);
+  clearArea -> height = GetUINT(buffer + 14, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Parsed Identity for message at " << this << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int ClearAreaStore::unparseIdentity(const Message *message, unsigned char *buffer,
+                                        unsigned int size, int bigEndian) const
+{
+  ClearAreaMessage *clearArea = (ClearAreaMessage *) message;
+
+  //
+  // Fill all the message's fields.
+  //
+
+  *(buffer + 1) = clearArea -> exposures;
+
+  PutULONG(clearArea -> window, buffer + 4, bigEndian);
+
+  PutUINT(clearArea -> x,      buffer + 8, bigEndian);
+  PutUINT(clearArea -> y,      buffer + 10, bigEndian);
+  PutUINT(clearArea -> width,  buffer + 12, bigEndian);
+  PutUINT(clearArea -> height, buffer + 14, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsed identity for message at " << this << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+void ClearAreaStore::dumpIdentity(const Message *message) const
+{
+  #ifdef DUMP
+
+  ClearAreaMessage *clearArea = (ClearAreaMessage *) message;
+
+  *logofs << name() << ": Identity exposures " << clearArea -> (unsigned int) exposures 
+          << ", window " << clearArea -> window  << ", x " << clearArea -> x 
+          << ", y " << clearArea -> y << ", width  " << clearArea -> width 
+          << ", height " << clearArea -> height << ", size " << clearArea -> size_ 
+          << ".\n";
+
+  #endif
+}
+
+void ClearAreaStore::identityChecksum(const Message *message, const unsigned char *buffer,
+                                          unsigned int size, int bigEndian) const
+{
+  md5_append(md5_state_, buffer + 1,  1);
+  md5_append(md5_state_, buffer + 4,  4);
+  md5_append(md5_state_, buffer + 8,  2);
+  md5_append(md5_state_, buffer + 10, 2);
+  md5_append(md5_state_, buffer + 12, 2);
+  md5_append(md5_state_, buffer + 14, 2);
+}