iOS-判断设备是否越狱

- (BOOL)jailbrokenDevice{   
    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;
}