Imported nxcomp-3.1.0-4.tar.gznxcomp/3.1.0-4

Summary: Imported nxcomp-3.1.0-4.tar.gz
Keywords:

Imported nxcomp-3.1.0-4.tar.gz
into Git repository

1 files changed, 293 insertions, 0 deletions

diff --git a/nxcomp/GenericReply.cpp b/nxcomp/GenericReply.cpp
new file mode 100755
index 000000000..27d236968
--- /dev/null
+++ b/nxcomp/GenericReply.cpp
@@ -0,0 +1,293 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 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 NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include "GenericReply.h"
+
+#include "ServerCache.h"
+
+#include "EncodeBuffer.h"
+#include "DecodeBuffer.h"
+
+#include "WriteBuffer.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+#undef  DUMP
+
+//
+// Constructors and destructors.
+//
+
+GenericReplyStore::GenericReplyStore(StaticCompressor *compressor)
+
+  : MessageStore(compressor)
+{
+  enableCache    = GENERICREPLY_ENABLE_CACHE;
+  enableData     = GENERICREPLY_ENABLE_DATA;
+  enableSplit    = GENERICREPLY_ENABLE_SPLIT;
+  enableCompress = GENERICREPLY_ENABLE_COMPRESS;
+
+  if (control -> isProtoStep7() == 1)
+  {
+    enableCompress = GENERICREPLY_ENABLE_COMPRESS_IF_PROTO_STEP_7;
+  }
+
+  dataLimit  = GENERICREPLY_DATA_LIMIT;
+  dataOffset = GENERICREPLY_DATA_OFFSET;
+
+  cacheSlots          = GENERICREPLY_CACHE_SLOTS;
+  cacheThreshold      = GENERICREPLY_CACHE_THRESHOLD;
+  cacheLowerThreshold = GENERICREPLY_CACHE_LOWER_THRESHOLD;
+
+  messages_ -> resize(cacheSlots);
+
+  for (T_messages::iterator i = messages_ -> begin();
+           i < messages_ -> end(); i++)
+  {
+    *i = NULL;
+  }
+
+  temporary_ = NULL;
+}
+
+GenericReplyStore::~GenericReplyStore()
+{
+  for (T_messages::iterator i = messages_ -> begin();
+           i < messages_ -> end(); i++)
+  {
+    destroy(*i);
+  }
+
+  destroy(temporary_);
+}
+
+//
+// Here are the methods to handle messages' content.
+//
+
+int GenericReplyStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer,
+                                          const unsigned int size, int bigEndian,
+                                              ChannelCache *channelCache) const
+{
+  ServerCache *serverCache = (ServerCache *) channelCache;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoding full message identity.\n"
+          << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeValue(GetULONG(buffer + 4, bigEndian), 32, 15);
+
+  encodeBuffer.encodeCachedValue(*(buffer + 1), 8,
+                     serverCache -> genericReplyCharCache);
+
+  for (unsigned int i = 0; i < 6; i++)
+  {
+    encodeBuffer.encodeCachedValue(GetULONG(buffer + i * 4 + 8, bigEndian), 32,
+                 *serverCache -> genericReplyIntCache[i]);
+  }
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoded full message identity.\n"
+          << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int GenericReplyStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer,
+                                          unsigned int &size, int bigEndian, WriteBuffer *writeBuffer,
+                                              ChannelCache *channelCache) const
+{
+  ServerCache *serverCache = (ServerCache *) channelCache;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoding full message identity.\n"
+          << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeValue(size, 32, 15);
+
+  size = 32 + (size << 2);
+
+  buffer = writeBuffer -> addMessage(size);
+
+  decodeBuffer.decodeCachedValue(*(buffer + 1), 8,
+                     serverCache -> genericReplyCharCache);
+
+  unsigned int value;
+
+  for (unsigned int i = 0; i < 6; i++)
+  {
+    decodeBuffer.decodeCachedValue(value, 32,
+                       *serverCache -> genericReplyIntCache[i]);
+
+    PutULONG(value, buffer + i * 4 + 8, bigEndian);
+  }
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded full message identity.\n"
+          << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int GenericReplyStore::parseIdentity(Message *message, const unsigned char *buffer,
+                                          unsigned int size, int bigEndian) const
+{
+  GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+
+  genericReply -> byte_data = *(buffer + 1);
+
+  for (int i = 0; i < 12; i++)
+  {
+    genericReply -> short_data[i] = GetUINT(buffer + i * 2 + 8, bigEndian);
+  }
+
+  #ifdef DEBUG
+  *logofs << name() << ": Parsed identity for message at "
+          << message << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int GenericReplyStore::unparseIdentity(const Message *message, unsigned char *buffer,
+                                            unsigned int size, int bigEndian) const
+{
+  GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+
+  *(buffer + 1) = genericReply -> byte_data;
+
+  for (int i = 0; i < 12; i++)
+  {
+    PutUINT(genericReply -> short_data[i], buffer + i * 2 + 8, bigEndian);
+  }
+
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsed identity for message at "
+          << message << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+void GenericReplyStore::dumpIdentity(const Message *message) const
+{
+  #ifdef DUMP
+
+  GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+
+  *logofs << name() << ": Identity byte_data "
+          << (unsigned) genericReply -> byte_data;
+
+  for (int i = 0; i < 12; i++)
+  {
+    *logofs << ", short_data[" << i << "]"
+            << (unsigned) genericReply -> short_data[i];
+  }
+
+  *logofs << ", size " << genericReply -> size_ << ".\n";
+
+  #endif
+}
+
+void GenericReplyStore::identityChecksum(const Message *message, const unsigned char *buffer,
+                                              unsigned int size, int bigEndian) const
+{
+}
+
+void GenericReplyStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+                                            const Message *cachedMessage,
+                                                ChannelCache *channelCache) const
+{
+  //
+  // Encode the variant part.
+  //
+
+  GenericReplyMessage *genericReply       = (GenericReplyMessage *) message;
+  GenericReplyMessage *cachedGenericReply = (GenericReplyMessage *) cachedMessage;
+
+  ServerCache *serverCache = (ServerCache *) channelCache;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value "
+          << (unsigned int) genericReply -> byte_data
+          << " as byte_data field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeCachedValue(genericReply -> byte_data, 8,
+                     serverCache -> genericReplyCharCache);
+
+  cachedGenericReply -> byte_data = genericReply -> byte_data;
+
+  for (unsigned int i = 0; i < 12; i++)
+  {
+    #ifdef TEST
+    *logofs << name() << ": Encoding value " << genericReply -> short_data[i]
+            << " as short_data[" << i << "] field.\n" << logofs_flush;
+    #endif
+
+    encodeBuffer.encodeCachedValue(genericReply -> short_data[i], 16,
+                       *serverCache -> genericReplyIntCache[i]);
+
+    cachedGenericReply -> short_data[i] = genericReply -> short_data[i];
+  }
+}
+
+void GenericReplyStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+                                            ChannelCache *channelCache) const
+{
+  //
+  // Decode the variant part.
+  //
+
+  GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+
+  ServerCache *serverCache = (ServerCache *) channelCache;
+
+  decodeBuffer.decodeCachedValue(genericReply -> byte_data, 8,
+               serverCache -> genericReplyCharCache);
+
+  #ifdef TEST
+  *logofs << name() << ": Decoded value "
+          << (unsigned int) genericReply -> byte_data
+          << " as byte_data field.\n" << logofs_flush;
+  #endif
+
+  unsigned int value;
+
+  for (unsigned int i = 0; i < 12; i++)
+  {
+    decodeBuffer.decodeCachedValue(value, 16,
+                 *serverCache -> genericReplyIntCache[i]);
+
+    genericReply -> short_data[i] = (unsigned short) value;
+
+    #ifdef TEST
+    *logofs << name() << ": Decoded value " << genericReply -> short_data[i]
+            << " as short_data[" << i << "] field.\n" << logofs_flush;
+    #endif
+  }
+}