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我能够在我的Swift项目中使用Objective-C代码从NSNetService获取IP地址。有没有可以做同样的Swift代码(以避免有一个桥头)?否则,我会保持现在的样子 - 但希望它可以在Swift中完成。来自NSNetService的Swift IP地址
-(NSString*)IPAddressesFromData:(NSNetService *)service {
for (NSData *address in [service addresses]) {
struct sockaddr_in *socketAddress = (struct sockaddr_in *) [address bytes];
//NSLog(@"Service name: %@ , ip: %s , port %i", [service name], inet_ntoa(socketAddress->sin_addr), [service port]);
NSString *retString = [NSString stringWithFormat:@"%s", inet_ntoa(socketAddress->sin_addr)];
return retString;
}
return @"Unknown";
}
更新代码的工作原理:
func netServiceDidResolveAddress(sender: NSNetService) {
let theAddress = sender.addresses!.first! as NSData
var hostname = [CChar](count: Int(NI_MAXHOST), repeatedValue: 0)
if getnameinfo(UnsafePointer(theAddress.bytes), socklen_t(theAddress.length),
&hostname, socklen_t(hostname.count), nil, 0, NI_NUMERICHOST) == 0 {
if let numAddress = String.fromCString(hostname) {
print("Resolved IP address: \(numAddress)")
}
}
}
看一看http://stackoverflow.com/questions/25890533/how-can-i -get-a-real-ip-address-from-dns-query-in-swift查看如何从sockaddr结构获取IP字符串。 –
SHazaam!非常感谢 - 我将用我更新的代码编辑我的原始问题。 –