ReachabilityWithAddressエラーがIPアドレスを与える

Question

私はIPアドレスに接続できるかどうかを試しています。

私のコードの気圧：

#import "ViewController.h" 
#import "SystemConfiguration/SystemConfiguration.h" 

@implementation ViewController 
struct sockaddr_in ; 

- (void)viewDidLoad 
{ 
[super viewDidLoad]; 
// Do any additional setup after loading the view, typically from a nib. 

Reachability *d = [Reachability reachabilityWithAddress:const struct sockaddr_in  ???????]; 
NetworkStatus internetStatus = [d currentReachabilityStatus]; 
//NetworkStatus internetStatus = [d currentReachabilityStatus]; 
if ((internetStatus != ReachableViaWiFi) && (internetStatus!= ReachableViaWWAN)){ 
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"No internet" message:@"No internet" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; 
    [alert show]; 
    [alert release]; 
} 
else { 
    UIAlertView *notify = [[UIAlertView alloc] initWithTitle:@"Internet" message:@"There is internet!(not)" delegate:self cancelButtonTitle:@"funny" otherButtonTitles:nil]; 
    [notify show]; 
    [notify release]; 

    } 
} 

誰かがこの作品を作る方法をplzは私に言うことはできますか？

私は、私はアップルが提供する到達可能性のサンプルでは、​​このサンプルをテストする方法がIPアドレスを挿入するには...

Answer 1

見当がつかないあなたがアイデアを得る願っています。

//Change the host name here to change the server your monitoring 
remoteHostLabel.text = [NSString stringWithFormat: @"Remote Host: %@", @"www.apple.com"]; 
//commented this line in the applicationDidFinishLaunching of ReachabilityAppDelegate.m file 
//hostReach = [[Reachability reachabilityWithHostName: @"www.apple.com"] retain]; 
struct sockaddr_in tAddr; 
tAddr.sin_len = 16; 
tAddr.sin_port = htons(80); 
struct in_addr address; 
address.s_addr = htons(0x4a7de048); 
tAddr.sin_family = AF_INET; 
//http://74.125.224.72/ this ip adress is for google 
//4a7de048 **updated** Hexadecimal representation of IP address 74.125.224.72 

hostReach = [[Reachability reachabilityWithAddress:&tAddr] retain]; 

Answer 2

このコードは、私の作品：

struct sockaddr_in localWifiAddress; 
    bzero(&localWifiAddress, sizeof(localWifiAddress)); 
    localWifiAddress.sin_len = sizeof(localWifiAddress); 
    localWifiAddress.sin_family = AF_INET; 
    localWifiAddress.sin_addr.s_addr = htonl(0x0A0A0A7B); // hex representation of your local IP 

    Reachability *reachability = [Reachability reachabilityWithAddress:&localWifiAddress];  
    reachability.key = kLocalWiFiConnection; 
    return [reachability isReachable];