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+/**************************************************************************/
+/* */
+/* 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. */
+/* */
+/**************************************************************************/
+
+#ifndef Misc_H
+#define Misc_H
+
+#include <iostream>
+#include <fstream>
+
+#include <errno.h>
+#include <string.h>
+
+#ifdef __sun
+
+#include <strings.h>
+
+#endif
+
+using namespace std;
+
+//
+// This is MD5 length.
+//
+
+#define MD5_LENGTH 16
+
+//
+// Error handling macros.
+//
+
+#define ESET(e) (errno = (e))
+#define EGET() (errno)
+#define ESTR() strerror(errno)
+
+//
+// TCP port offset applied to NX port specification.
+//
+
+extern const int DEFAULT_NX_PROXY_PORT_OFFSET;
+
+//
+// Default TCP port used by client proxy to listen
+// to X clients and by server proxy to connect to
+// remote.
+//
+
+extern const int DEFAULT_NX_PROXY_PORT;
+
+//
+// Default X display number that client
+// proxy imitates.
+//
+
+extern const int DEFAULT_NX_X_PORT;
+
+//
+// Establish the port offsets for the additional
+// services.
+//
+
+extern const int DEFAULT_NX_CUPS_PORT_OFFSET;
+extern const int DEFAULT_NX_SMB_PORT_OFFSET;
+extern const int DEFAULT_NX_MEDIA_PORT_OFFSET;
+extern const int DEFAULT_NX_AUX_PORT_OFFSET;
+extern const int DEFAULT_NX_HTTP_PORT_OFFSET;
+extern const int DEFAULT_NX_FONT_PORT_OFFSET;
+
+//
+// Slave channels can be originated by both sides
+// so they need to have different port offsets
+// in the case the user runs both proxies on the
+// same host.
+//
+
+extern const int DEFAULT_NX_SLAVE_PORT_CLIENT_OFFSET;
+extern const int DEFAULT_NX_SLAVE_PORT_SERVER_OFFSET;
+
+//
+// Return strings containing various info.
+//
+
+const char *GetUsageInfo();
+const char *GetCopyrightInfo();
+const char *GetOtherCopyrightInfo();
+
+//
+// Define this if you want immediate flush of
+// the log output.
+//
+
+#define FLUSH_LOGOFS
+
+//
+// Global objects providing shared functions.
+//
+
+class Auth;
+class Control;
+class Statistics;
+
+extern Auth *auth;
+extern Control *control;
+extern Statistics *statistics;
+
+//
+// Log file.
+//
+
+extern ostream *logofs;
+
+//
+// Cleanup code.
+//
+
+void HandleAbort() __attribute__((noreturn));
+void HandleShutdown() __attribute__((noreturn));
+
+extern "C"
+{
+ void HandleCleanup(int code = 0) __attribute__((noreturn));
+}
+
+//
+// Manage signal handlers.
+//
+
+void DisableSignals();
+void EnableSignals();
+
+//
+// Manage timers.
+//
+
+void SetTimer(int value);
+void ResetTimer();
+
+//
+// Show a dialog asking the user if he/she
+// wants to close the current session. Look
+// in the alerts file for the known critical
+// events.
+//
+
+void HandleAlert(int code, int local);
+
+//
+// Run the callback registered by the proxy
+// or the agent.
+//
+
+void KeeperCallback();
+void FlushCallback(int length);
+
+//
+// Return the string literal corresponding
+// the value.
+//
+
+const char *DumpSignal(int signal);
+const char *DumpPolicy(int type);
+const char *DumpControl(int code);
+const char *DumpSession(int code);
+const char *DumpAction(int type);
+const char *DumpState(int type);
+const char *DumpToken(int type);
+
+//
+// Print out content of buffer to log file.
+// You need to define DUMP or OPCODES in
+// the source to have these compiled.
+//
+
+const char *DumpOpcode(const int &opcode);
+const char *DumpChecksum(const void *checksum);
+
+void DumpData(const unsigned char *data, unsigned int length);
+void DumpHexData(const unsigned char *data, unsigned int length);
+void DumpChecksum(const unsigned char *data, unsigned int length);
+void DumpBlockChecksums(const unsigned char *data, unsigned int length,
+ unsigned int block);
+
+//
+// Defines logofs_flush as an empty string to
+// avoid calling the corresponding ostream's
+// flush() function.
+//
+
+#ifdef FLUSH_LOGOFS
+
+#define logofs_flush "" ; logofs -> flush()
+
+#else
+
+#define logofs_flush ""
+
+#endif
+
+//
+// Is the host where local proxy is running
+// big-endian?
+//
+
+extern int _hostBigEndian;
+extern int _storeBigEndian;
+
+inline void setHostBigEndian(int flag)
+{
+ _hostBigEndian = flag;
+}
+
+inline int hostBigEndian()
+{
+ return _hostBigEndian;
+}
+
+inline int storeBigEndian()
+{
+ return _storeBigEndian;
+}
+
+extern const unsigned int IntMask[33];
+
+unsigned int GetUINT(unsigned const char *buffer, int bigEndian);
+unsigned int GetULONG(unsigned const char *buffer, int bigEndian);
+void PutUINT(unsigned int value, unsigned char *buffer, int bigEndian);
+void PutULONG(unsigned int value, unsigned char *buffer, int bigEndian);
+
+inline void CleanData(unsigned char *buffer, int size)
+{
+ unsigned char *end = buffer + size;
+
+ while (buffer < end)
+ {
+ *buffer++ = 0x00;
+ }
+}
+
+int CheckData(istream *fs);
+int CheckData(ostream *fs);
+int PutData(ostream *fs, const unsigned char *buffer, int size);
+int GetData(istream *fs, unsigned char *buffer, int size);
+int FlushData(ostream *fs);
+
+unsigned int RoundUp2(unsigned int x);
+unsigned int RoundUp4(unsigned int x);
+unsigned int RoundUp8(unsigned int x);
+
+#endif /* Misc_H */