SMS 编解码

#include "StdAfx.h"#include "SMS_CodeDecode.h"CSMS_CodeDecode::CSMS_CodeDecode(void){}CSMS_CodeDecode::~CSMS_CodeDecode(void){}DWORD CSMS_CodeDecode::gsmEncodeUcs2(const TCHAR* pWildChar,BYTE* pByte,DWORD leng){while(*pWildChar!=0x0000){BYTE temp=0x00;temp = (*pWildChar&0xFF00)>>8;*pByte = temp;pByte++;temp = (*pWildChar&0x00FF);*pByte = temp;pByte++;pWildChar++;}*pByte=0x00;return leng*2;}DWORD CSMS_CodeDecode::gsmDecodeUcs2(const BYTE* pByte, TCHAR* pWildChar, DWORD leng){ int i, j;for (i = 0, j = 0; i<leng; i+=2,j++){ *pWildChar++ = (pByte[i]<<8|pByte[i+1]);}*pWildChar =0x00;return j;}int CSMS_CodeDecode::gsmEncodeUcs2(const char* pSrc, unsigned char* pDest, int nSrcLength){int nDstLength; // UNICODE宽字符数目WCHAR wchar[128]; // UNICODE串缓冲区// 字符串-->UNICODE串nDstLength = MByteToWChar( pSrc, wchar, sizeof(wchar)/sizeof(wchar[0]));// 高低字节对调，输出for(int i=0; i<nDstLength; i++){// 先输出高位字节*pDest++ = wchar[i] >> 8;// 后输出低位字节*pDest++ = wchar[i] & 0xff;}// 返回目标编码串长度return nDstLength * 2;}int CSMS_CodeDecode::gsmDecodeUcs2(const unsigned char* pSrc, char* pDest, int nSrcLength){int nDstLength; // UNICODE宽字符数目WCHAR wchar[128]; // UNICODE串缓冲区// 高低字节对调，拼成UNICODEfor(int i=0; i<nSrcLength/2; i++){// 先高位字节wchar[i] = *pSrc++ << 8;// 后低位字节wchar[i] |= *pSrc++;}//nDstLength = ::WideCharToMultiByte(CP_ACP, 0, wchar, nSrcLength/2, pDest, 160, NULL, NULL); nDstLength = WCharToMByte(wchar,pDest,sizeof(wchar)/sizeof(wchar[0]));pDest[nDstLength] = '/0'; return nDstLength;}int CSMS_CodeDecode::gsmEncode7bit(const char* pSrc, unsigned char* pDest, int nSrcLength){ int i; for(i =1; i <= nSrcLength; i++) { if(i%8 == 0) { i++; } pDest[i-i/8-1] = ((pSrc[i-1]>>(i%8-1))+ (pSrc[i]<<(8-i%8))); } return(i-1); }int CSMS_CodeDecode::gsmDecode7bit(const unsigned char* pSrc, char* pDest, int nSrcLength){int nSrc; // 源字符串的计数值int nDst; // 目标解码串的计数值int nByte; // 当前正在处理的组内字节的序号，范围是0-6unsigned char nLeft; // 上一字节残余的数据// 计数值初始化nSrc = 0;nDst = 0;// 组内字节序号和残余数据初始化nByte = 0;nLeft = 0;// 将源数据每7个字节分为一组，解压缩成8个字节// 循环该处理过程，直至源数据被处理完// 如果分组不到7字节，也能正确处理while(nSrc<nSrcLength){// 将源字节右边部分与残余数据相加，去掉最高位，得到一个目标解码字节*pDest = ((*pSrc << nByte) | nLeft) & 0x7f;// 将该字节剩下的左边部分，作为残余数据保存起来nLeft = *pSrc >> (7-nByte);// 修改目标串的指针和计数值pDest++;nDst++;// 修改字节计数值nByte++;// 到了一组的最后一个字节if(nByte == 7){// 额外得到一个目标解码字节*pDest = nLeft;// 修改目标串的指针和计数值pDest++;nDst++;// 组内字节序号和残余数据初始化nByte = 0;nLeft = 0;}// 修改源串的指针和计数值pSrc++;nSrc++;}*pDest = 0;// 返回目标串长度return nDst;}int CSMS_CodeDecode::MByteToWChar(LPCSTR lpcszStr, LPWSTR lpwszStr, DWORD dwSize){ DWORD dwMinSize;dwMinSize = MultiByteToWideChar(CP_ACP,0,lpcszStr,-1,NULL,0);if (dwSize <dwMinSize){ return 0;}//Convent ASCII to Unicodereturn (MultiByteToWideChar(CP_ACP,0,lpcszStr,-1,lpwszStr,dwMinSize));}int CSMS_CodeDecode::WCharToMByte(LPCWSTR lpcwszStr, LPSTR lpszStr, DWORD dwSize){DWORD dwMinSize;dwMinSize = WideCharToMultiByte(CP_OEMCP,NULL,lpcwszStr,-1,NULL,0,NULL,FALSE);if (dwSize <dwMinSize){return 0;}return (WideCharToMultiByte(CP_OEMCP,NULL,lpcwszStr,-1,lpszStr,dwSize,NULL,FALSE));}