越狱判断

- (void)viewDidLoad

{
    [super viewDidLoad];
    if ([self isJailbroken]) {
        NSLog(@"越狱!");
    }else {
        NSLog(@"木有越狱");
    }
    // Do any additional setup after loading the view, typically from a nib.
}

- (BOOL)isJailbroken {  
    BOOL jailbroken = NO;  
    NSString *cydiaPath = @"/Applications/Cydia.app";  
    NSString *aptPath = @"/private/var/lib/apt/";  
    if ([[NSFileManager defaultManager] fileExistsAtPath:cydiaPath]) {  
        jailbroken = YES;  
    }  
    if ([[NSFileManager defaultManager] fileExistsAtPath:aptPath]) {  
        jailbroken = YES;  
    }  
    return jailbroken;  
}