1 //go:build !windows 2 // +build !windows 3 4 /* 5 Copyright 2019 The Kubernetes Authors. 6 7 Licensed under the Apache License, Version 2.0 (the "License"); 8 you may not use this file except in compliance with the License. 9 You may obtain a copy of the License at 10 11 http://www.apache.org/licenses/LICENSE-2.0 12 13 Unless required by applicable law or agreed to in writing, software 14 distributed under the License is distributed on an "AS IS" BASIS, 15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 See the License for the specific language governing permissions and 17 limitations under the License. 18 */ 19 20 package runtime 21 22 import ( 23 "net" 24 "net/url" 25 ) 26 27 // isExistingSocket checks if path exists and is domain socket 28 func isExistingSocket(path string) bool { 29 u, err := url.Parse(path) 30 if err != nil { 31 // should not happen, since we are trying to access known / hardcoded sockets 32 return false 33 } 34 35 c, err := net.Dial(u.Scheme, u.Path) 36 if err != nil { 37 return false 38 } 39 defer c.Close() 40 return true 41 } 42