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Patch.hpp

/*
 * Patch.hpp:
 * representation of a kernel patch.
 * written by palmers / teso
 */
#ifndef __PATCH_C
#define __PATCH_C

#include <rwKernel.hpp>
#include <SymbolTable.hpp>
#include <SystemMap.hpp>
#include <stoi16.hpp>
#include <itos16.hpp>
#include <utility>
#include <functional>
#include <algorithm>
#include <list>
#include <fstream>
#include <string>
#include <name2add.h>


typedef pair<unsigned int, unsigned int>        Addr2Addr;
typedef list<Addr2Addr *>                       Addr2AddrList;

Addr2AddrList *genReplaceValMap (SymbolTable *st);
void genDummyValMap ();
extern SystemMap DummyValMap;


#define CLEAN   1
#define LINKED  2
#define APPLIED 4
#define LFAILED 8
#define AFAILED 16


class Patch
{
private:
  int state;
  unsigned short len;
  unsigned char *back_data, *data, *overwr;
  unsigned int address;
  rwKernel *local_rw;

  bool initObjects (unsigned char *, unsigned short, unsigned int, rwKernel *);
  string state2string ();
  void string2state (string);
  string data2string (unsigned char *);
  void string2data (string, unsigned char *);
  void parse (string);

public:
  Patch ();

  Patch (unsigned char *data, unsigned short len, unsigned int addr);

  Patch (unsigned char *data, unsigned short len, unsigned int addr, rwKernel *x);

  Patch (string);

  Patch (string, rwKernel *);

  ~Patch ();


  void initFromString (string);

  string getPatchAsString ();

  bool wasChanged ();

  bool isLinked ();

  bool isApplied ();

  bool isFailed ();

  bool isClean ();

  int getState ();

  void restore ();

  bool remove ();

  bool remove (rwKernel *);

  unsigned char *getData ();

  void apply (rwKernel *);

  void apply ();

  void link (Addr2AddrList *);

  void dump (string file);

  friend istream& operator>> (istream&, Patch&);

  friend ostream& operator<< (ostream&, Patch&);
};
#endif /* __PATCH_C */

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