portscan.cpp

这是使用 C++ 写的端口扫描工具

/***************************************************************************
 *   Copyright (C) 2006 by root   *
 *   [e-mail]   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/


#include "portscan.h"

portscan::portscan(QWidget* parent, const char* name, WFlags fl)
: scandlg(parent,name,fl)
{
}

portscan::~portscan()
{
}

/*$SPECIALIZATION$*/
void portscan::option()
{
    opt *nainWin=new opt(this);
    nainWin->show();
}

void portscan::scan()
{
    textEdit->append("start scan---------------------------------------");
    for(port=startp;port<=endp;port++)
    {
        sa.sin_family=AF_INET;
        host=gethostbyname(lineEdit->text());
        strncpy((char *)&sa.sin_addr,(char *)host->h_addr,sizeof(sa.sin_addr));
        sa.sin_port=htons(port);
        bzero(&(sa.sin_zero),8);
        sd=socket(AF_INET,SOCK_STREAM,0);
        if(::connect(sd,(struct sockaddr *)&sa,sizeof(struct sockaddr))==0)
        {
            sprintf(temp,"port %d is open",port);
            textEdit->append(temp);
        }
        ::close(sd);
    }
    textEdit->append("scan end---------------------------------------");
}