API extension: ONetwork::isPresent( const char* name )

2 files changed, 15 insertions, 0 deletions

diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index 915814d..e5b091f 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -99,96 +99,107 @@ void ONetwork::synchronize()
         odebug << "ONetwork: found interface '" << str << "'" << oendl;

         ONetworkInterface* iface;

         if ( isWirelessInterface( str ) )

         {

             iface = new OWirelessNetworkInterface( this, (const char*) str );

             odebug << "ONetwork: interface '" << str << "' has Wireless Extensions" << oendl;

         }

         else

         {

             iface = new ONetworkInterface( this, (const char*) str );

         }

         _interfaces.insert( str, iface );

         s.readLine();

     }

 }

 

 

 short ONetwork::wirelessExtensionVersion()

 {

     return WIRELESS_EXT;

 }

 

 

 int ONetwork::count() const

 {

     return _interfaces.count();

 }

 

 

 ONetworkInterface* ONetwork::interface( const QString& iface ) const

 {

     return _interfaces[iface];

 }

 

 

 ONetwork* ONetwork::instance()

 {

     if ( !_instance ) _instance = new ONetwork();

     return _instance;

 }

 

 

 ONetwork::InterfaceIterator ONetwork::iterator() const

 {

     return ONetwork::InterfaceIterator( _interfaces );

 }

 

 

+bool ONetwork::isPresent( const char* name ) const

+{

+    int sfd = socket( AF_INET, SOCK_STREAM, 0 );

+    struct ifreq ifr;

+    memset( &ifr, 0, sizeof( struct ifreq ) );

+    strcpy( (char*) &ifr.ifr_name, name );

+    int result = ::ioctl( sfd, SIOCGIFFLAGS, &ifr );

+    return result != -1;

+}

+

+

 bool ONetwork::isWirelessInterface( const char* name ) const

 {

     int sfd = socket( AF_INET, SOCK_STREAM, 0 );

     struct iwreq iwr;

     memset( &iwr, 0, sizeof( struct iwreq ) );

     strcpy( (char*) &iwr.ifr_name, name );

     int result = ::ioctl( sfd, SIOCGIWNAME, &iwr );

     return result != -1;

 }

 

 /*======================================================================================

  * ONetworkInterface

  *======================================================================================*/

 

 ONetworkInterface::ONetworkInterface( QObject* parent, const char* name )

                  :QObject( parent, name ),

                  _sfd( socket( AF_INET, SOCK_DGRAM, 0 ) ), _mon( 0 )

 {

     odebug << "ONetworkInterface::ONetworkInterface()" << oendl;

     init();

 }

 

 

 struct ifreq& ONetworkInterface::ifr() const

 {

     return _ifr;

 }

 

 

 void ONetworkInterface::init()

 {

     odebug << "ONetworkInterface::init()" << oendl;

 

     memset( &_ifr, 0, sizeof( struct ifreq ) );

 

     if ( _sfd == -1 )

     {

         odebug << "ONetworkInterface::init(): Warning - can't get socket for device '" << name() << "'" << oendl;

         return;

     }

 }

 

 

 bool ONetworkInterface::ioctl( int call, struct ifreq& ifreq ) const

 {

     #ifndef NODEBUG

     int result = ::ioctl( _sfd, call, &ifreq );

     if ( result == -1 )

diff --git a/libopie2/opienet/onetwork.h b/libopie2/opienet/onetwork.h
index 0a51108..93b129f 100644
--- a/libopie2/opienet/onetwork.h
+++ b/libopie2/opienet/onetwork.h
@@ -49,96 +49,100 @@
 #include <opie2/ostation.h>
 
 /* QT */
 
 #include <qvaluelist.h>
 #include <qdict.h>
 #include <qmap.h>
 #include <qobject.h>
 #include <qhostaddress.h>
 
 class ONetworkInterface;
 class OWirelessNetworkInterface;
 class OChannelHopper;
 class OMonitoringInterface;
 
 /*======================================================================================
  * ONetwork
  *======================================================================================*/
 
 /**
  * @brief A container class for all network interfaces
  *
  * This class provides access to all available network interfaces of your computer.
  *
  * @author Michael 'Mickey' Lauer <mickey@vanille.de>
  */
 class ONetwork : public QObject
 {
   Q_OBJECT
 
   public:
     typedef QDict<ONetworkInterface> InterfaceMap;
     typedef QDictIterator<ONetworkInterface> InterfaceIterator;
 
   public:
     /**
      * @returns the number of available interfaces
      */
     int count() const;
     /**
      * @returns a pointer to the (one and only) @ref ONetwork instance.
      */
     static ONetwork* instance();
     /**
      * @returns an iterator usable for iterating through all network interfaces.
      */
     InterfaceIterator iterator() const;
     /**
+     * @returns true, if the @a interface is present.
+     */
+    bool isPresent( const char* interface ) const;
+    /**
      * @returns true, if the @a interface supports the wireless extension protocol.
      */
     bool isWirelessInterface( const char* interface ) const;
     /**
      * @returns a pointer to the @ref ONetworkInterface object for the specified @a interface or 0, if not found.
      * @see ONetworkInterface
      */
     ONetworkInterface* interface( const QString& interface ) const;
     /**
      * @internal Rebuild the internal interface database
      * @note Sometimes it might be useful to call this from client code,
      * e.g. after issuing a cardctl insert
      */
     void synchronize();
     /**
      * @returns the wireless extension version used at compile time.
      **/
     static short wirelessExtensionVersion();
 
   protected:
     ONetwork();
 
   private:
     static ONetwork* _instance;
     InterfaceMap _interfaces;
 };
 
 
 /*======================================================================================
  * ONetworkInterface
  *======================================================================================*/
 
 /**
  * @brief A network interface wrapper.
  *
  * This class provides a wrapper for a network interface. All the cumbersume details of
  * Linux ioctls are hidden under a convenient high-level interface.
  * @warning Most of the setting methods contained in this class require the appropriate
  * process permissions to work.
  *
  * @author Michael 'Mickey' Lauer <mickey@vanille.de>
  */
 class ONetworkInterface : public QObject
 {
     friend class OMonitoringInterface;
     friend class OCiscoMonitoringInterface;
     friend class OWlanNGMonitoringInterface;
     friend class OHostAPMonitoringInterface;