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, 295 insertions, 0 deletions

diff --git a/nxcomp/GetPropertyReply.cpp b/nxcomp/GetPropertyReply.cpp
new file mode 100755
index 000000000..ac2c19253
--- /dev/null
+++ b/nxcomp/GetPropertyReply.cpp
@@ -0,0 +1,295 @@
+/**************************************************************************/
+/*                                                                        */
+/* 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 "GetPropertyReply.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.
+//
+
+GetPropertyReplyStore::GetPropertyReplyStore(StaticCompressor *compressor)
+
+  : MessageStore(compressor)
+{
+  enableCache    = GETPROPERTYREPLY_ENABLE_CACHE;
+  enableData     = GETPROPERTYREPLY_ENABLE_DATA;
+  enableSplit    = GETPROPERTYREPLY_ENABLE_SPLIT;
+  enableCompress = GETPROPERTYREPLY_ENABLE_COMPRESS;
+
+  if (control -> isProtoStep7() == 1)
+  {
+    enableCompress = GETPROPERTYREPLY_ENABLE_COMPRESS_IF_PROTO_STEP_7;
+  }
+
+  dataLimit  = GETPROPERTYREPLY_DATA_LIMIT;
+  dataOffset = GETPROPERTYREPLY_DATA_OFFSET;
+
+  cacheSlots          = GETPROPERTYREPLY_CACHE_SLOTS;
+  cacheThreshold      = GETPROPERTYREPLY_CACHE_THRESHOLD;
+  cacheLowerThreshold = GETPROPERTYREPLY_CACHE_LOWER_THRESHOLD;
+
+  messages_ -> resize(cacheSlots);
+
+  for (T_messages::iterator i = messages_ -> begin();
+           i < messages_ -> end(); i++)
+  {
+    *i = NULL;
+  }
+
+  temporary_ = NULL;
+}
+
+GetPropertyReplyStore::~GetPropertyReplyStore()
+{
+  for (T_messages::iterator i = messages_ -> begin();
+           i < messages_ -> end(); i++)
+  {
+    destroy(*i);
+  }
+
+  destroy(temporary_);
+}
+
+//
+// Here are the methods to handle messages' content.
+//
+
+int GetPropertyReplyStore::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
+
+  unsigned char format = (unsigned int) *(buffer + 1);
+
+  encodeBuffer.encodeCachedValue(format, 8,
+                     serverCache -> getPropertyFormatCache);
+
+  unsigned int numBytes = GetULONG(buffer + 16, bigEndian);
+
+  encodeBuffer.encodeValue(numBytes, 32, 9);
+
+  if (format == 16)
+  {
+    numBytes <<= 1;
+  }
+  else if (format == 32)
+  {
+    numBytes <<= 2;
+  }
+
+  encodeBuffer.encodeCachedValue(GetULONG(buffer + 8, bigEndian), 29,
+                     serverCache -> getPropertyTypeCache, 9);
+
+  encodeBuffer.encodeValue(GetULONG(buffer + 12, bigEndian), 32, 9);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoded full message identity.\n"
+          << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int GetPropertyReplyStore::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
+
+  unsigned char format;
+
+  decodeBuffer.decodeCachedValue(format, 8,
+                     serverCache -> getPropertyFormatCache);
+
+  unsigned int length;
+
+  decodeBuffer.decodeValue(length, 32, 9);
+
+  unsigned int numBytes = length;
+
+  if (format == 16)
+  {
+    numBytes <<= 1;
+  }
+  else if (format == 32)
+  {
+    numBytes <<= 2;
+  }
+
+  size = 32 + RoundUp4(numBytes);
+
+  buffer = writeBuffer -> addMessage(size);
+
+  *(buffer + 1) = format;
+
+  PutULONG(length, buffer + 16, bigEndian);
+
+  unsigned int value;
+
+  decodeBuffer.decodeCachedValue(value, 29,
+                     serverCache -> getPropertyTypeCache, 9);
+
+  PutULONG(value, buffer + 8, bigEndian);
+
+  decodeBuffer.decodeValue(value, 32, 9);
+
+  PutULONG(value, buffer + 12, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded full message identity.\n"
+          << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int GetPropertyReplyStore::parseIdentity(Message *message, const unsigned char *buffer,
+                                             unsigned int size, int bigEndian) const
+{
+  GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message;
+
+  getPropertyReply -> format = *(buffer + 1);
+
+  getPropertyReply -> type  = GetULONG(buffer + 8,  bigEndian);
+  getPropertyReply -> after = GetULONG(buffer + 12, bigEndian);
+  getPropertyReply -> items = GetULONG(buffer + 16, bigEndian);
+
+  //
+  // Cleanup the padding bytes.
+  //
+
+  unsigned int uiLengthInBytes;
+  unsigned int uiFormat;
+
+  if ((int) size > GETPROPERTYREPLY_DATA_OFFSET)
+  {
+    uiLengthInBytes = getPropertyReply -> items;
+
+    uiFormat = *(buffer + 1);
+
+    #ifdef DEBUG
+    *logofs << name() << ": length " << uiLengthInBytes
+            << ", format " << uiFormat << ", size "
+            << size << ".\n" << logofs_flush;
+    #endif
+
+    if (uiFormat == 16)
+    {
+      uiLengthInBytes <<= 1;
+    }
+    else if (uiFormat == 32)
+    {
+      uiLengthInBytes <<= 2;
+    }
+
+    unsigned char *end = ((unsigned char *) buffer) + size;
+    unsigned char *pad = ((unsigned char *) buffer) + GETPROPERTYREPLY_DATA_OFFSET + uiLengthInBytes;
+
+    CleanData((unsigned char *) pad, end - pad);
+  }
+
+  #ifdef DEBUG
+  *logofs << name() << ": Parsed identity for message at "
+          << message << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int GetPropertyReplyStore::unparseIdentity(const Message *message, unsigned char *buffer,
+                                               unsigned int size, int bigEndian) const
+{
+  GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message;
+
+  *(buffer + 1) = getPropertyReply -> format;
+
+  PutULONG(getPropertyReply -> type,  buffer + 8,  bigEndian);
+  PutULONG(getPropertyReply -> after, buffer + 12, bigEndian);
+  PutULONG(getPropertyReply -> items, buffer + 16, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsed identity for message at "
+          << message << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+void GetPropertyReplyStore::dumpIdentity(const Message *message) const
+{
+  #ifdef DUMP
+
+  GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message;
+
+  *logofs << name() << ": Identity format "
+          << (unsigned) getPropertyReply -> format << ", type "
+          << getPropertyReply -> type << ", after " << getPropertyReply -> after
+          << ", items " << getPropertyReply -> items << ", size "
+          << getPropertyReply -> size_ << ".\n";
+
+  #endif
+}
+
+void GetPropertyReplyStore::identityChecksum(const Message *message, const unsigned char *buffer,
+                                                 unsigned int size, int bigEndian) const
+{
+  //
+  // Fields format, type, after, items.
+  //
+
+  md5_append(md5_state_, buffer + 1, 1);
+  md5_append(md5_state_, buffer + 8, 12);
+}
+
+void GetPropertyReplyStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+                                               const Message *cachedMessage,
+                                                ChannelCache *channelCache) const
+{
+}
+
+void GetPropertyReplyStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+                                               ChannelCache *channelCache) const
+{
+}