diff options
Diffstat (limited to 'nxcomp/src/InternAtom.cpp')
| -rw-r--r-- | nxcomp/src/InternAtom.cpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/nxcomp/src/InternAtom.cpp b/nxcomp/src/InternAtom.cpp new file mode 100644 index 000000000..9d0ab1b6d --- /dev/null +++ b/nxcomp/src/InternAtom.cpp @@ -0,0 +1,131 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ +/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ +/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ +/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ +/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/ +/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ +/* */ +/* NXCOMP, NX protocol compression and NX extensions to this software */ +/* are copyright of the aforementioned persons and companies. */ +/* */ +/* Redistribution and use of the present software is allowed according */ +/* to terms specified in the file LICENSE.nxcomp which comes in the */ +/* source distribution. */ +/* */ +/* All rights reserved. */ +/* */ +/* NOTE: This software has received contributions from various other */ +/* contributors, only the core maintainers and supporters are listed as */ +/* copyright holders. Please contact us, if you feel you should be listed */ +/* as copyright holder, as well. */ +/* */ +/**************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "InternAtom.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 InternAtomStore::parseIdentity(Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + InternAtomMessage *internAtom = (InternAtomMessage *) message; + + // + // Here is the fingerprint. + // + + internAtom -> only_if_exists = *(buffer + 1); + internAtom -> name_length = GetUINT(buffer + 4, bigEndian); + + #ifdef DEBUG + *logofs << name() << ": Parsed identity for message at " << message << ".\n" << logofs_flush; + #endif + + // + // Clean up padding bytes. + // + + if ((int) size > dataOffset) + { + unsigned char *end = ((unsigned char *) buffer) + size; + + for (unsigned char *pad = ((unsigned char *) buffer) + 8 + + internAtom -> name_length; pad < end; pad++) + { + *pad = 0; + } + } + + return 1; +} + +int InternAtomStore::unparseIdentity(const Message *message, unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + InternAtomMessage *internAtom = (InternAtomMessage *) message; + + // + // Fill all the message's fields. + // + + *(buffer + 1) = internAtom -> only_if_exists; + + PutUINT(internAtom -> name_length, buffer + 4, bigEndian); + + #ifdef DEBUG + *logofs << name() << ": Unparsed identity for message at " << message << ".\n" << logofs_flush; + #endif + + return 1; +} + +void InternAtomStore::dumpIdentity(const Message *message) const +{ + #ifdef DUMP + + InternAtomMessage *internAtom = (InternAtomMessage *) message; + + *logofs << name() << ": Identity only_if_exists " + << (unsigned int) internAtom -> only_if_exists + << ", name_length " << internAtom -> name_length + << ", name '"; + + for (int i = 0; i < internAtom -> name_length; i++) + { + *logofs << internAtom -> data_[i]; + } + + *logofs << "'.\n" << logofs_flush; + + #endif +} + +void InternAtomStore::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, 2); +} |