| /* |
| Copyright 2016 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package net |
| |
| import ( |
| "net" |
| "net/url" |
| "os" |
| "reflect" |
| "syscall" |
| ) |
| |
| // IPNetEqual checks if the two input IPNets are representing the same subnet. |
| // For example, |
| // 10.0.0.1/24 and 10.0.0.0/24 are the same subnet. |
| // 10.0.0.1/24 and 10.0.0.0/25 are not the same subnet. |
| func IPNetEqual(ipnet1, ipnet2 *net.IPNet) bool { |
| if ipnet1 == nil || ipnet2 == nil { |
| return false |
| } |
| if reflect.DeepEqual(ipnet1.Mask, ipnet2.Mask) && ipnet1.Contains(ipnet2.IP) && ipnet2.Contains(ipnet1.IP) { |
| return true |
| } |
| return false |
| } |
| |
| // Returns if the given err is "connection reset by peer" error. |
| func IsConnectionReset(err error) bool { |
| if urlErr, ok := err.(*url.Error); ok { |
| err = urlErr.Err |
| } |
| if opErr, ok := err.(*net.OpError); ok { |
| err = opErr.Err |
| } |
| if osErr, ok := err.(*os.SyscallError); ok { |
| err = osErr.Err |
| } |
| if errno, ok := err.(syscall.Errno); ok && errno == syscall.ECONNRESET { |
| return true |
| } |
| return false |
| } |