mirror of
https://github.com/ccding/go-stun.git
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57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
// Copyright 2013, Cong Ding. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// author: Cong Ding <dinggnu@gmail.com>
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package main
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import (
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"fmt"
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"github.com/ccding/go-stun/stun"
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)
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func main() {
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nat, host, err := stun.Discover()
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if err != nil {
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fmt.Println(err)
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}
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switch nat {
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case stun.NAT_ERROR:
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fmt.Println("Test failed")
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case stun.NAT_UNKNOWN:
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fmt.Println("Unexpected response from the STUN server")
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case stun.NAT_BLOCKED:
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fmt.Println("UDP is blocked")
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case stun.NAT_FULL:
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fmt.Println("Full cone NAT")
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case stun.NAT_SYMETRIC:
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fmt.Println("Symetric NAT")
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case stun.NAT_RESTRICTED:
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fmt.Println("Restricted NAT")
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case stun.NAT_PORT_RESTRICTED:
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fmt.Println("Port restricted NAT")
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case stun.NAT_NONE:
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fmt.Println("Not behind a NAT")
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case stun.NAT_SYMETRIC_UDP_FIREWALL:
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fmt.Println("Symetric UDP firewall")
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}
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if host != nil {
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fmt.Println(host.Family())
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fmt.Println(host.Ip())
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fmt.Println(host.Port())
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}
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}
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