二进制比较工具VBinDiff3.0

//-------------------------------------------------------------------- // $Id: vbindiff.cpp 4759 2008-07-26 03:19:24Z cjm $ //-------------------------------------------------------------------- // // Visual Binary Diff // Copyright 1995-2008 by Christopher J. Madsen // // Visual display of differences in binary files // // 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, see <http://www.gnu.org/licenses/>. //-------------------------------------------------------------------- #include "config.h" #include <ctype.h> #include <limits.h> #include <stdlib.h> #include <string.h> #include <algorithm> #include <iostream> #include <sstream> #include <map> #include <string> #include <vector> using namespace std; #include "GetOpt/GetOpt.hpp" #include "ConWin.hpp" #include "FileIO.hpp" const char titleString[] = "\nVBinDiff " PACKAGE_VERSION "\nCopyright 1995-2008 Christopher J. Madsen"; void exitMsg(int status, const char* message); void usage(bool showHelp=true, int exitStatus=0); //==================================================================== // Type definitions: typedef unsigned char Byte; typedef unsigned short Word; typedef Byte Command; enum LockState { lockNeither = 0, lockTop, lockBottom }; //-------------------------------------------------------------------- // Strings: typedef string String; typedef String::size_type StrIdx; typedef String::iterator StrItr; typedef String::const_iterator StrConstItr; //-------------------------------------------------------------------- // Vectors: typedef vector<String> StrVec; typedef StrVec::iterator SVItr; typedef StrVec::const_iterator SVConstItr; typedef StrVec::size_type VecSize; //-------------------------------------------------------------------- // Map: typedef map<VecSize, String> StrMap; typedef StrMap::value_type SMVal; typedef StrMap::iterator SMItr; typedef StrMap::const_iterator SMConstItr; //==================================================================== // Constants: const Command cmmMove = 0x80; const Command cmmMoveSize = 0x03; const Command cmmMoveForward = 0x04; const Command cmmMoveTop = 0x08; const Command cmmMoveBottom = 0x10; const Command cmmMoveByte = 0x00; // Move 1 byte const Command cmmMoveLine = 0x01; // Move 1 line const Command cmmMovePage = 0x02; // Move 1 page const Command cmmMoveAll = 0x03; // Move to beginning or end const Command cmmMoveBoth = cmmMoveTop|cmmMoveBottom; const Command cmgGoto = 0x04; // Commands 4-7 const Command cmgGotoTop = 0x01; const Command cmgGotoBottom = 0x02; const Command cmgGotoBoth = cmgGotoTop|cmgGotoBottom; const Command cmgGotoMask = ~cmgGotoBoth; const Command cmNothing = 0; const Command cmNextDiff = 1; const Command cmQuit = 2; const Command cmEditTop = 8; const Command cmEditBottom = 9; const Command cmUseTop = 10; const Command cmUseBottom = 11; const Command cmToggleASCII = 12; const Command cmFind = 16; // Commands 16-19 const short leftMar = 11; // Starting column of hex display const short leftMar2 = 61; // Starting column of ASCII display const int lineWidth = 16; // Number of bytes displayed per line const int promptHeight = 4; // Height of prompt window const int inWidth = 10; // Width of input window (excluding border) const int screenWidth = 80; const int maxPath = 260; const VecSize maxHistory = 2000; const char hexDigits[] = "0123456789ABCDEF"; #include "tables.h" // ASCII and EBCDIC tables //==================================================================== // Class Declarations: void showEditPrompt(); void showPrompt(); class Difference; union FileBuffer { Byte line[1][lineWidth]; Byte buffer[lineWidth]; }; // end FileBuffer class FileDisplay { friend class Difference; protected: int bufContents; FileBuffer* data; const Difference* diffs; File file; char fileName[maxPath]; FPos offset; ConWindow win; bool writable; int yPos; public: FileDisplay(); ~FileDisplay(); void init(int y, const Difference* aDiff=NULL, const char* aFileName=NULL); void resize(); void shutDown(); void display(); bool edit(const FileDisplay* other); const Byte* getBuffer() const { return data->buffer; }; void move(int step) { moveTo(offset + step); }; void moveTo(FPos newOffset); bool moveTo(const Byte* searchFor, int searchLen); void moveToEnd(FileDisplay* other); bool setFile(const char* aFileName); protected: void setByte(short x, short y, Byte b); }; // end FileDisplay class Difference { friend void FileDisplay::display(); protected: FileBuffer* data; const FileDisplay* file1; const FileDisplay* file2; int numDiffs; public: Difference(const FileDisplay* aFile1, const FileDisplay* aFile2); ~Difference(); int compute(); int getNumDiffs() const { return numDiffs; }; void resize(); }; // end Difference class InputManager { private: char* buf; // The editing buffer const char* restrict; // If non-NULL, only allow these chars StrVec& history; // The history vector to use StrMap historyOverlay; // Overlay of modified history entries VecSize historyPos; // The current offset into history[] int maxLen; // The size of buf (not including NUL) int len; // The current length of the string int i; // The current cursor position bool upcase; // Force all characters to uppercase? bool splitHex; // Entering space-separated hex bytes? bool insert; // False for overstrike mode public: InputManager(char* aBuf, int aMaxLen, StrVec& aHistory); bool run(); void setCharacters(const char* aRestriction) { restrict = aRestriction; }; void setSplitHex(bool val) { splitHex = val; }; void setUpcase(bool val) { upcase = val; }; private: bool normalize(int pos); void useHistory(int delta); }; // end InputManager //==================================================================== // Global Variables: String lastSearch; StrVec hexSearchHistory, textSearchHistory, positionHistory; ConWindow promptWin,inWin; FileDisplay file1, file2; Difference diffs(&file1, &file2); const char* displayTable = asciiDisplayTable; const char* program_name; // Name under which this program was invoked LockState lockState = lockNeither; bool singleFile = false; int numLines = 9; // Number of lines of each file to display int bufSize = numLines * lineWidth; int linesBetween = 1; // Number of lines of padding between files // The number of bytes to move for each possible step size: // See cmmMoveByte, cmmMoveLine, cmmMovePage int steps[4] = {1, lineWidth, bufSize-line