files.h

各种加密算法的集合

#ifndef CRYPTOPP_FILES_H 
#define CRYPTOPP_FILES_H 
 
#include "cryptlib.h" 
#include "filters.h" 
 
#include <iostream> 
#include <fstream> 
 
NAMESPACE_BEGIN(CryptoPP) 
 
class FileSource : public Source 
{ 
public: 
	class Err : public Exception {public: Err(const char *message) : Exception(message) {}}; 
	class OpenErr : public Err {public: OpenErr(const char *message) : Err(message) {}}; 
	class ReadErr : public Err {public: ReadErr() : Err("FileSource: error reading file") {}}; 
 
	FileSource(std::istream &in, bool pumpAndClose=false, 
			   BufferedTransformation *outQueue = NULL); 
	FileSource(const char *filename, bool pumpAndClose=false, 
			   BufferedTransformation *outQueue = NULL); 
 
	std::istream& GetStream() {return in;} 
 
	unsigned int Pump(unsigned int size); 
	unsigned long PumpAll(); 
 
private: 
	std::ifstream file; 
	std::istream& in; 
}; 
 
class FileSink : public Sink 
{ 
public: 
	class Err : public Exception {public: Err(const char *message) : Exception(message) {}}; 
	class OpenErr : public Err {public: OpenErr(const char *message) : Err(message) {}}; 
	class WriteErr : public Err {public: WriteErr() : Err("FileSink: error writing file") {}}; 
 
	FileSink(std::ostream &out); 
	FileSink(const char *filename); 
 
	std::ostream& GetStream() {return out;} 
 
	void InputFinished(); 
	void Put(byte inByte) 
	{ 
		out.put(inByte); 
		if (!out.good()) 
		  throw WriteErr(); 
	} 
 
	void Put(const byte *inString, unsigned int length); 
 
private: 
	std::ofstream file; 
	std::ostream& out; 
}; 
 
NAMESPACE_END 
 
#endif