c++发送邮件附件乱码问题

Question

int CSmtp::SendAttachment_Ex() /*发送附件*/
{

    for (list<FILEINFO *>::iterator pIter = listFile.begin(); pIter != listFile.end(); pIter++)
    {

        CString sendBuff;
        sendBuff = "--qwertyuiop\r\n";
        sendBuff += "Content-Type: application/octet-stream;\r\n";
        sendBuff += " name=\"";
        sendBuff += (*pIter)->fileName;
        sendBuff += "\"";
        sendBuff += "\r\n";

        sendBuff += "Content-Transfer-Encoding: base64\r\n";
        sendBuff += "Content-Disposition: attachment;\r\n";
        sendBuff += " filename=\"";
        sendBuff += (*pIter)->fileName;
        sendBuff += "\"";

        sendBuff += "\r\n";
        sendBuff += "\r\n";
        Send(sendBuff);
        ifstream ifs((*pIter)->filePath,ios::in | ios::binary);
        if (FALSE == ifs.is_open())
        {
            return 4; /*错误码4表示文件打开错误*/
        }
        char fileBuff[MAX_FILE_LEN];
        char *chSendBuff;
        memset(fileBuff, 0, sizeof(fileBuff));
        /*文件使用base64加密传送*/
        while (ifs.read(fileBuff, MAX_FILE_LEN))
        {
            //cout << ifs.gcount() << endl;
            chSendBuff = base64Encode(fileBuff, MAX_FILE_LEN);
            chSendBuff[strlen(chSendBuff)] = '\r';
            chSendBuff[strlen(chSendBuff)] = '\n';
            send(sockClient, chSendBuff, strlen(chSendBuff), 0);
            delete[]chSendBuff;
        }
        //cout << ifs.gcount() << endl;
        chSendBuff = base64Encode(fileBuff, ifs.gcount());
        chSendBuff[strlen(chSendBuff)] = '\r';
        chSendBuff[strlen(chSendBuff)] = '\n';
        int err = send(sockClient, chSendBuff, strlen(chSendBuff), 0);

        if (err != strlen(chSendBuff))
        {
            cout << "文件传送出错!" << endl;
            return 1;
        }
        delete []chSendBuff;
    }
    return 0;
}

上边是发送附件源码，但是结果在163邮箱里 附件却以正文的形式显示，并且乱码了

Answer 1

http://blog.csdn.net/q472599451/article/details/9293881