#include?“stdafx.h“
#include?“base64.h“

#ifdef?_DEBUG
#undef?THIS_FILE
static?char?THIS_FILE[]=__FILE__;
#define?new?DEBUG_NEW
#endif

CString?Cbase64::m_sbase64Alphabet?=?
_T（?“ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/“?）;

int?Cbase64::m_nMask[]?=?{?0?1?3?7?15?31?63?127?255?};

Cbase64::Cbase64（）
{
}

Cbase64::~Cbase64（）
{
}

CString?Cbase64::Encode（LPCTSTR?szEncoding?int?nSize）
{
	CString?sOutput?=?_T（?““?）;
	int?nNumBits?=?6;
	UINT?nDigit;
	int?lp?=?0;

	ASSERT（?szEncoding?!=?NULL?）;
	if（?szEncoding?==?NULL?）
		return?sOutput;
	m_szInput?=?szEncoding;
	m_nInputSize?=?nSize;

	m_nBitsRemaining?=?0;
	nDigit?=?read_bits（?nNumBits?&nNumBits?lp?）;
	while（?nNumBits?>?0?）
	{
		sOutput?+=?m_sbase64Alphabet[?（int）nDigit?];
		nDigit?=?read_bits（?nNumBits?&nNumBits?lp?）;
	}
	//?Pad?with?‘=‘?as?per?RFC?1521
	while（?sOutput.GetLength（）?%?4?!=?0?）
	{
		sOutput?+=?‘=‘;
	}
	return?sOutput;
}

//?The?size?of?the?output?buffer?must?not?be?less?than
//?3/4?the?size?of?the?input?buffer.?For?simplicity
//?make?them?the?same?size.
int?Cbase64::Decode（LPCTSTR?szDecoding?LPTSTR?szOutput）
{
	CString?sInput;
????int?c?lp?=0;
	int?nDigit;
????int?nDecode[?256?];

	ASSERT（?szDecoding?!=?NULL?）;
	ASSERT（?szOutput?!=?NULL?）;
	if（?szOutput?==?NULL?）
		return?0;
	if（?szDecoding?==?NULL?）
		return?0;
	sInput?=?szDecoding;
	if（?sInput.GetLength（）?==?0?）
		return?0;

	//?Build?Decode?Table
	//
	for（?int?i?=?0;?i?		nDecode[i]?=?-2;?//?Illegal?digit
	for（?i=0;?i?	{
		nDecode[?m_sbase64Alphabet[?i?]?]?=?i;
		nDecode[?m_sbase64Alphabet[?i?]?|?0x80?]?=?i;?//?Ignore?8th?bit
		nDecode[?‘=‘?]?=?-1;?
		nDecode[?‘=‘?|?0x80?]?=?-1;?//?Ignore?MIME?padding?char
????}

	//?Clear?the?output?buffer
	memset（?szOutput?0?sInput.GetLength（）?+?1?）;

	//?Decode?the?Input
	//
	for（?lp?=?0?i?=?0;?lp?	{
		c?=?sInput[?lp?];
		nDigit?=?nDecode[?c?&?0x7F?];
		if（?nDigit?		{
			return?0;
		}?
		else?if（?nDigit?>=?0?）?
			//?i?（index?into?output）?is?incremented?by?write_bits（）
			write_bits（?nDigit?&?0x3F?6?szOutput?i?）;
????}	
	return?i;
}




UINT?Cbase64::read_bits（int?nNumBits?int?*?pBitsRead?int&?lp）
{
????ULONG?lScratch;
????while（?（?m_nBitsRemaining?		???（?lp?	{
		int?c?=?m_szInput[?lp++?];
????????m_lBitStorage?<<=?8;
????????m_lBitStorage?|=?（c?&?0xff）;
		m_nBitsRemaining?+=?8;
????}
????if（?m_nBitsRemaining?	{
		lScratch?=?m_lBitStorage?<		*pBitsRead?=?m_nBitsRemaining;
		m_nBitsRemaining?=?0;
????}?
	else?
	{
		lScratch?=?m_lBitStorage?>>?（?m_nBitsRemaining?-?nNumBits?）;
		*pBitsRead?=?nNumBits;
		m_nBitsRemaining?-=?nNumBits;
????}
????return?（UINT）lScratch?&?m_nMask[nNumBits];
}


void?Cbase64::write_bits（UINT?nBits
						?int?nNumBits
						?LPTSTR?szOutput
						

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2012-12-21?10:19??65520755MyControlPC3.26\
?????目錄???????????0??2013-01-06?17:52??65520755MyControlPC3.26\MyControlPC3.26\
?????文件????????3282??2001-11-19?16:47??65520755MyControlPC3.26\MyControlPC3.26\base64.cpp
?????文件?????????794??2001-11-19?16:49??65520755MyControlPC3.26\MyControlPC3.26\base64.h
?????目錄???????????0??2013-09-02?19:16??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\
?????文件????????4886??2011-02-22?11:45??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyConfigure.cpp
?????文件?????????856??2011-01-12?15:53??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyConfigure.h
?????文件????????5802??2011-02-22?10:18??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.001
?????文件??????200460??2012-12-21?10:20??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.aps
?????文件????????3169??2011-02-22?11:52??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.cpp
?????文件????????5891??2011-02-22?12:00??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.dsp
?????文件?????????541??2011-02-22?10:18??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.dsw
?????文件????????1246??2011-02-22?11:48??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.h
?????文件?????4336640??2013-09-02?19:19??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.ncb
?????文件???????56832??2012-12-29?15:15??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.opt
?????文件????????3465??2012-12-21?10:21??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.plg
?????文件???????19713??2011-03-26?11:07??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.rc
?????文件????????2560??2013-09-02?09:38??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPC.suo
?????文件????????1525??2011-02-22?10:18??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPCDoc.cpp
?????文件?????????550??2011-02-22?10:18??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\MyCtrlPCDoc.h
?????文件???????28572??2011-03-26?11:08??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\PeeperFrm.cpp
?????文件????????2826??2011-03-26?11:08??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\PeeperFrm.h
?????文件????????1552??2011-02-22?12:00??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\PeeperSetDlg.cpp
?????文件?????????672??2011-02-22?11:49??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\PeeperSetDlg.h
?????文件???????28886??2011-03-26?11:08??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\PeeperWnd.cpp
?????文件????????4379??2011-03-26?11:08??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\PeeperWnd.h
?????目錄???????????0??2013-09-02?09:37??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\Release\
?????文件???????10082??2012-12-21?10:21??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\Release\base64.obj
?????文件???????????0??2012-12-21?10:21??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\Release\base64.sbr
?????文件???????25785??2012-12-21?10:21??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\Release\MyConfigure.obj
?????文件???????????0??2012-12-21?10:21??65520755MyControlPC3.26\MyControlPC3.26\PeeperClient\Release\MyConfigure.sbr
............此處省略81個文件信息