CODEWITHSUNDEEP
objective-cmacos
Dtmy
Dtmy

Reputation: 44

Mac OS. Qt. How to get SSID, BSSID and channel of all available WiFi networks

How to get SSID, BSSID and channel of all available WiFi networks under Mac OS using Qt C++?

Under Windows I use wlanapi.lib and I get mentioned properties via WlanGetNetworkBssList method. Is there any
thing like this under Mac OS? For example, the list of CWNetwork objects.

I'm trying do it in the following way:

#import <CoreWLAN/CWInterface.h>

CWInterface *currentInterface = [CWInterface interfaceWithName:nil];

if (currentInterface == NULL)
    return false;

if([currentInterface power])
{
    NSError *err = nil;
    NSSet *scanResults =  [currentInterface scanForNetworksWithBSSID:nil error:&err];

    if (!err)
    {
        for(CWNetwork *network in scanResults)
        {
            //print SSID
        }
    }
}

But the call of "scanForNetworksWithBSSID:nil" occurs error : " Signal name : SIGTRAP Signal meaning : Trace / breakpoint trap "

What does it mean? Could you please advice in this?

Upvotes: 2

Views: 2595

Answers (2)

Almog_0
Almog_0

Reputation: 422

Here is the properties that u can retrieve 

CWInterface* wifi = [[CWWiFiClient sharedWiFiClient] interface];
NSArray *networkScan = [[wifi scanForNetworksWithName:nil error:nil] allObjects];
for (CWNetwork *network in networkScan) {
    NSLog ( @"SSID: %@ ,\n \
           BSSID: %@ , \n \
           rssiValue: %ld , \n \
           noiseMeasurement: %ld, \n\
           beaconInterval: %ld , \n \
           countryCode: %@ \n ,\
           ibss: %i ,\n\
           wlanChannel: %@ , \n\
           ", [network ssid],[network bssid],[network rssiValue],[network noiseMeasurement],(long)[network beaconInterval], [network countryCode] , [network ibss], [[network wlanChannel]description]);

}

Upvotes: 0

falconspy
falconspy

Reputation: 790

You can always use QProcess and execute a terminal command:

QStringList arguments;
arguments << "-I";
QProcess process;
process.start("/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport", arguments);

This will fire off the airport command with the -I flag to show information about the current wireless network you are on.

Upvotes: 1

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