myvtm/Other/acmstrdec/ccdb2BaseLib.h

#ifndef __ccdb2BaseLib_h
#define __ccdb2BaseLib_h
//#include <windows.h>
#include "SpBase.h"
#include <openssl/rsa.h>

struct SmartBuffer
{
	unsigned char *pBuf;
	int nLen;
	inline bool IsNull() const
	{
		return pBuf==NULL;
	}
	SmartBuffer(const SmartBuffer &InBuf)
	{
		if(InBuf.IsNull())
		{
			pBuf=NULL;
			nLen=0;
		}
		else
		{
			pBuf=new unsigned char[InBuf.nLen];
			memcpy((void *)pBuf,(void *)InBuf.pBuf,InBuf.nLen);
			nLen=InBuf.nLen;
		}
	}
	SmartBuffer()
	{
		pBuf=NULL;
		nLen=0;
	}
	SmartBuffer(int nSize)
	{
		if(nSize<0)
			nSize=0;
		if(nSize==0)
		{
			pBuf=NULL;
			nLen=0;
		}
		else
		{
			pBuf=new unsigned char[nSize];
			memset(pBuf,0,nSize);
			nLen=nSize;
		}
	}
	SmartBuffer(const char *pInStr)
	{
		if(pInStr==NULL || strlen(pInStr)==0)
		{
			pBuf=NULL;
			nLen=0;
		}
		else
		{
			nLen=(int)strlen(pInStr)+1;
			pBuf=new unsigned char[nLen];
			memcpy(pBuf,pInStr,nLen);
		}
	}
	~SmartBuffer()
	{
		if(pBuf)
			delete[] pBuf;
	}
	void SetSize(int nSize)
	{
		Clear();
		if(nSize<=0)
			return;
		pBuf=new unsigned char[nSize];
		memset(pBuf,0,nSize);
		nLen=nSize;
	}
	SmartBuffer &operator =(const SmartBuffer &InBuf)
	{
		if(InBuf.IsNull())
		{
			pBuf=NULL;
			nLen=0;
		}
		else
		{
			pBuf=new unsigned char[InBuf.nLen];
			memcpy(pBuf,InBuf.pBuf,InBuf.nLen);
			nLen=InBuf.nLen;
		}
		return *this;
	}
	void Clear()
	{
		if(pBuf)
			delete[] pBuf;
		nLen=0;
	}
	void Copy(const BYTE *InBuf,int nSize)
	{
		Clear();
		if(nSize<=0)
			return;
		pBuf=new unsigned char[nSize];
		memcpy(pBuf,InBuf,nSize);
		nLen=nSize;
	}
	void SetStr(const char *pInStr)
	{
		Clear();
		if(pInStr==NULL || strlen(pInStr)==0)
			return;
		nLen=(int)strlen(pInStr)+1;
		pBuf=new unsigned char[nLen];
		memcpy(pBuf,pInStr,nLen);
	}
	bool IsEqual(const SmartBuffer &Other)
	{
		if(nLen!=Other.nLen)
			return false;
		if(nLen!=0 && memcmp(pBuf,Other.pBuf,nLen)!=0)
			return false;
		return true;
	}
};
const char *ccGetErrStr();
void ccSetErrorString(const char *szFormat,...);
void ccClearErrorString();


SmartBuffer ccHash(const BYTE *pInBuf,int nInSize);
SmartBuffer ccPublicDecryptStream(RSA *pPublicKey,const BYTE *pInBuf,int nLen,SmartBuffer &Signer);
RSA *ccD2I_RsaPublic(const BYTE *pBuf,int nLen);

#endif