form1.ui.h

这是一个在redhat9 linux系统中

/****************************************************************************
** ui.h extension file, included from the uic-generated form implementation.
**
** If you wish to add, delete or rename functions or slots use
** Qt Designer which will update this file, preserving your code. Create an
** init() function in place of a constructor, and a destroy() function in
** place of a destructor.
*****************************************************************************/
#include <qstring.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qlineedit.h>
#include <fstream.h>
#include <stdio.h>
#include <stdlib.h>

bool flag=FALSE;

QString GB_To_Utf8(char *strText)
{
    return QString::fromLocal8Bit(strText);
}

void initgateway(QLineEdit *le, QPushButton * pb)
{
    QFile file("/etc/sysconfig/network-scripts/ifcfg-eth0");
    if(file.open(IO_ReadOnly))
    {
	QTextStream stream( &file );
        QString line;
        while ( !stream.eof() ) {
            line = stream.readLine(); 
	    if (line == "GATEWAY=192.168.0.254")
	    {
		le->setText(GB_To_Utf8(" ADSL"));
		//le->setText("Now you used ADSL network");
		pb->setText(GB_To_Utf8("切换至 校园网"));
		//pb->setText( "Change to CAMPUS network");
		flag = TRUE;
	    }
	    else if(line == "GATEWAY=192.168.0.1")
	    {
		le->setText(GB_To_Utf8("您现在使用的是 校园网"));
		pb->setText(GB_To_Utf8("切换至 ADSL"));
		//le->setText("Now you used CAMPUS network");
		//pb->setText( "Change to ADSL network");
		flag = TRUE;
	    }
        }
        file.close();
	if (!flag) {
	   le->setText(GB_To_Utf8("您的网关不可用"));
	   pb->setText(GB_To_Utf8("请您手动设置")); 
	}
    }
}

void Form1::init()
{
   initgateway(lineEdit3,pushButton4);
}


void Form1::ChangeGateway()
{
    FILE *fp;
    fp = fopen("/tmp/ifcfg-eth0","w+");
    fclose(fp);
    
    QFile file1("/etc/sysconfig/network-scripts/ifcfg-eth0");
    QFile file2("/tmp/ifcfg-eth0");
    QTextStream stream1( &file1 );
    QTextStream stream2( &file2 );
    QString line;
    if(file1.open(IO_ReadOnly) && file2.open(IO_ReadWrite))
    {
	
	
        
        while ( !stream1.eof() ) {
            line = stream1.readLine(); 
	    
	    
	    
	    if (line == "GATEWAY=192.168.0.254")
	    {
		stream2 <<"GATEWAY=192.168.0.1\n";
	    }
	    else if(line == "GATEWAY=192.168.0.1")
	    {
		stream2 <<"GATEWAY=192.168.0.254\n";
		
	    }
	    else stream2<<line<<"\n";
        }
       // file1.close();
	//file2.close();
	
    }
    else {lineEdit3->setText("Failed !!!"); return;}
    //file1.close();
    file1.close();
    file2.close();
    system("cp /tmp/ifcfg-eth0 /etc/sysconfig/network-scripts/ -f");
    system("ifdown eth0");
    system("ifup eth0");
    system("rm /tmp/ifcfg-eth0 -f");
    initgateway(lineEdit3,pushButton4);    
}