获取Access Point的Mac地址和SSID

1.获取SSID

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+ (id) fetchWifiSSIDInfo {

    NSArray*ifs = (id)CNCopySupportedInterfaces();

    idinfo = nil;

     

    for(NSString*ifnam in ifs) {

        info = (id)CNCopyCurrentNetworkInfo((CFStringRef)ifnam);

    

        if(info && [info count]) {

            break;

        }

         

        [info release];

    }

     

    [ifs release];

    returninfo;

}

2.获取路由器的IP

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//获取路由器的IP

//ssdp协议，需要路由器开启upnp

-(void) getApIP {

    ssdpSock = [[AsyncUdpSocket alloc] initWithDelegate:self];

    [ssdpSock enableBroadcast:TRUE error:nil];

    NSString*str = @"M-SEARCH * HTTP/1.1\r\nHOST: 239.255.255.250:1900\r\nMAN: \"ssdp:discover\"\r\nMX:3\r\nST: urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\n\r\n";    

    [ssdpSock bindToPort:0 error:nil];

    [ssdpSock joinMulticastGroup:@"239.255.255.250"error:nil];

    [ssdpSock sendData:[str dataUsingEncoding:NSUTF8StringEncoding]  

                toHost:@"239.255.255.250"

                  port:1900

           withTimeout:3

                   tag:1];

    [ssdpSock receiveWithTimeout:-1 tag:2];

    [NSTimerscheduledTimerWithTimeInterval:3 target: self

                                   selector:@selector(completeSearch:)

                                   userInfo:self

                                    repeats:NO];

}

 

#pragma mark -

#pragma mark AsyncUdpSocket delegate

 

-(void) completeSearch: (NSTimer*)t {

    [ssdpSock close];

    ssdpSock = nil;

    [ssdpSock release];

}

 

- (void)onUdpSocket:(AsyncUdpSocket *)sock didNotSendDataWithTag:(long)tag dueToError:(NSError*)error {

}

 

- (BOOL)onUdpSocket:(AsyncUdpSocket *)sock didReceiveData:(NSData*)data withTag:(long)tag fromHost:(NSString*)host port:(UInt16)port{

    [[Global shareInstance] setApIP:host];

    returnYES;

}

 

- (void)onUdpSocket:(AsyncUdpSocket *)sock didNotReceiveDataWithTag:(long)tag dueToError:(NSError*)error {

     

}

参考：

http://www.cocoachina.com/bbs/read.php?tid=40872

http://www.cocoachina.com/bbs/simple/?t110456.html