common.h
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/*
* steghide 0.5.1 - a steganography program
* Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef SH_COMMON_H
#define SH_COMMON_H
//
// this file contains some definitions that are/can be used throughout the whole program
//
//
// include config.h
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
//
// generic type definitions
#ifdef HAVE_CONFIG_H
typedef TYPE_UWORD32 UWORD32 ;
typedef TYPE_UWORD16 UWORD16 ;
typedef TYPE_BYTE BYTE ;
typedef TYPE_SWORD32 SWORD32 ;
typedef TYPE_SWORD16 SWORD16 ;
typedef TYPE_SBYTE SBYTE ;
#else
// use types that are at least the correct size
typedef unsigned long UWORD32 ;
typedef unsigned short UWORD16 ;
typedef unsigned char BYTE ;
typedef long SWORD32 ;
typedef short SWORD16 ;
typedef char SBYTE ;
#endif
#define UWORD32_MAX 0xFFFFFFFFUL
#define UWORD16_MAX 0xFFFF
#define BYTE_MAX 0xFF
#define SWORD32_MIN -2147483647 - 1 // to avoid a gcc warning (caused by an overflow)
#define SWORD32_MAX 2147483647
#define SWORD16_MIN -32768
#define SWORD16_MAX 32767
#define SBYTE_MIN -128
#define SBYTE_MAX 127
//
// specialised type definitions
typedef bool BIT ;
typedef BYTE EmbValue ;
typedef UWORD32 SamplePos ;
typedef UWORD32 VertexLabel ;
typedef UWORD32 SampleValueLabel ;
typedef UWORD32 SampleKey ;
#define SAMPLEKEY_MAX UWORD32_MAX
#define VERTEXLABEL_MAX UWORD32_MAX
//
// gettext support
#include "gettext.h"
#define _(S) gettext (S)
//
// global variables
#include "Globals.h"
extern Globals Globs ;
//
// every class should (be able to) do assertions
// (myassert(expr) is more verbose than the standard C assert)
#include "AssertionFailed.h"
#define myassert(expr) if (!(expr)) throw AssertionFailed (__FILE__, __LINE__)
//
// every class can have debugging output
#include <iostream> // for verbose testing output
#if DEBUG
#define RUNDEBUGLEVEL(LEVEL) ((LEVEL) <= Args.DebugLevel.getValue())
extern void printDebug (unsigned short level, const char *msgfmt, ...) ;
#endif
//
// every class has access to the command line arguments
#include "Arguments.h"
extern Arguments Args ;
//
// every class has access to random data
#include "RandomSource.h"
extern RandomSource RndSrc ;
#endif // ndef SH_COMMON_H
SampleKey
UWORD32 SampleKey
Definition: common.h:70
Arguments
parsing and data representation of command-line arguments
Definition: Arguments.h:38
AssertionFailed.h
RandomSource.h
Arguments.h
SampleValueLabel
UWORD32 SampleValueLabel
Definition: common.h:69
Globs
Globals Globs
Definition: Embedder.cc:41
SamplePos
UWORD32 SamplePos
Definition: common.h:67
BIT
bool BIT
Definition: common.h:65
Globals
some useful pointers that should be global
Definition: Globals.h:52
SWORD16
short SWORD16
Definition: common.h:49
BYTE
unsigned char BYTE
Definition: common.h:47
SBYTE
char SBYTE
Definition: common.h:50
UWORD16
unsigned short UWORD16
Definition: common.h:46
Globals.h
VertexLabel
UWORD32 VertexLabel
Definition: common.h:68
SWORD32
long SWORD32
Definition: common.h:48
UWORD32
unsigned long UWORD32
Definition: common.h:45
Args
Arguments Args
Definition: Arguments.cc:34
RandomSource
objects of this class are used as a source of random (non reproduceable) data
Definition: RandomSource.h:33
EmbValue
BYTE EmbValue
Definition: common.h:66
gettext.h
RndSrc
RandomSource RndSrc
Definition: RandomSource.cc:31