setip_form.cpp

在S3C2410上基于Qt的设置IP程序

/****************************************************************************
** Form implementation generated from reading ui file 'setip_form.ui'
**
** Created: Fri Jun 2 09:20:14 2006
**      by:  The User Interface Compiler (uic)
**
** WARNING! All changes made in this file will be lost!
****************************************************************************/
#include "setip_form.h"

#include <qlabel.h>
#include <qlineedit.h>
#include <qpushbutton.h>
#include <qradiobutton.h>
#include <qlayout.h>
#include <qvariant.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qmessagebox.h>
#include <qfile.h>
#include <qstring.h>

#include <stdio.h>
#include <unistd.h>
#include <sys/wait.h>
#include <signal.h>

#define Run(al1, al2, al3, al4) { char *arglist[4];  arglist[0]=al1; arglist[1]=al2; arglist[2]=al3; arglist[3]=al4; if(execute(arglist))    return 1; }


int execute(char *arglist[])
{
  int pid,exitstatus;
  
  pid =fork();
  switch (pid) {
    case -1:
      perror("fork failed");
      return 1;                                             
    case 0:                                                                       
      execvp(arglist[0],arglist);
      perror("execvp failed");
      return 1;
    default:
      while( wait(&exitstatus)!=pid);
     }
  return 0;  
 }
 
int open_net(const char ip[20])
{      
      char buf[20];
      
      strcpy(buf,ip);
      Run ("mc2005_pp","ETHER","ON",NULL);
      sleep(5);
      Run("insmod","/lib/modules/2.6.12-rc4/at91_ether.ko",NULL,NULL);
      Run("/sbin/ifconfig","eth0",buf,NULL);
      return 0;
  }
 
int close_net()
{
   Run ("/sbin/ifconfig","eth0","down",NULL);
   Run ("rmmod","at91_ether",NULL,NULL);
   Run ("mc2005_pp","ETHER","OFF",NULL);
   return 0;
}


 static int check_net()
{
   char buf[128];
   
   QFile file( "/proc/net/dev");
   if ( !file.open( IO_ReadOnly )) {
            printf("Could not open file /proc/net/dev");
            return 1;
        }
   while ( !file.atEnd() ) {
            file.readBlock(buf,128);
	    if (strstr(buf,"eth0:")!=NULL)
            {
              printf("net on.");
	      file.close();
	      return 0;
            }  
 
        }
        file.close();
	printf("net off.");
        return 1;
 
}


/* 
 *  Constructs a setip_form which is a child of 'parent', with the 
 *  name 'name' and widget flags set to 'f' 
 *
 *  The dialog will by default be modeless, unless you set 'modal' to
 *  TRUE to construct a modal dialog.
 */
setip_form::setip_form( QWidget* parent,  const char* name, bool modal, WFlags fl )
    : QDialog( parent, name, modal, fl )
{
   char buf[20];
   
   if ( !name )
	setName( "setip_form" );
    resize( 285, 161 ); 
    setBaseSize( QSize( 320, 240 ) );
    setCaption( tr( "Set IP" ) );
      
   TLabnetstat = new QLabel( this, "TLabnetstat" );
   TLabnetstat->setGeometry( QRect( 10, 20, 261, 30 ) ); 
   
   RadioButton1 = new QRadioButton( this, "RadioButton1" );
   RadioButton1->setGeometry( QRect( 10, 70, 100, 21 ) ); 
   
   IP_Label1 = new QLabel( this, "IP_Label1" );
   IP_Label1->setGeometry( QRect( 140, 70, 20, 21 ) ); 
   IP_Label1->setText( tr( "IP " ) );
   
   QFile file( "/mnt/a/etc/mc2005IP");
   memset(buf,'\0',20);
   if ( !file.open( IO_ReadWrite)) {
            QMessageBox::critical(this,"Open failed","Could not open file for reading:");
            return;
        }
   file.readBlock(buf,20);
   file.close();
   LineEdit1 = new QLineEdit( this, "LineEdit1" );
   LineEdit1->setGeometry( QRect( 160, 70, 120, 22 ) ); 
   LineEdit1->setText( tr( buf ) );  
  
   if(check_net()==0)
   {
     TLabnetstat->setText( tr( "Network opened." ) );
     RadioButton1->setText( tr( "Ethernet Off" ) );
   }
   else
   {
     TLabnetstat->setText( tr( "Network closed." ) );
     RadioButton1->setText( tr( "Ethernet On" ) );
   }
  
    OK_Button = new QPushButton( this, "OK_Button" );
    OK_Button->setGeometry( QRect( 10, 110, 80, 30 ) ); 
    OK_Button->setText( tr( "OK" ) );

    Cancel_Button = new QPushButton( this, "Cancel_Button" );
    Cancel_Button->setGeometry( QRect( 200, 110, 80, 30 ) ); 
    Cancel_Button->setText( tr( "Quit" ) );


    // signals and slots connections
    connect( Cancel_Button, SIGNAL( clicked() ), this, SLOT( accept() ) );
    connect( OK_Button, SIGNAL( clicked() ), this, SLOT( ok_slot() ) );
}

/*  
 *  Destroys the object and frees any allocated resources
 */
setip_form::~setip_form()
{
    // no need to delete child widgets, Qt does it all for us
}

void setip_form::ok_slot()
{
 if(RadioButton1->isChecked ())
   if  (RadioButton1->text()== "Ethernet Off" ){
        close_net();
	QMessageBox::information(this,"Ethernet Off","Ethernet is Off.");
	TLabnetstat->setText( tr( "Network closed." ) );
	RadioButton1->setText( tr( "Ethernet On" ) );
   }
   else if(RadioButton1->text()== "Ethernet On" )
   {  
        open_net(LineEdit1->text());
	
	QMessageBox::information(this,"Ethernet On","Ethernet is On.");
	TLabnetstat->setText( tr( "Network opened." ) );
	RadioButton1->setText( tr( "Ethernet Off" ) );
       QFile file( "/mnt/a/etc/mc2005IP");
        
       if ( !file.open( IO_ReadWrite)) {
            QMessageBox::critical(this,"Open failed","Could not open file for reading:");
            return;
        }
        file.writeBlock(LineEdit1->text(),20);
        file.close();
   }
}