github.com/lalkh/containerd@v1.4.3/sys/filesys.go (about) 1 /* 2 Copyright The containerd Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package sys 18 19 import "os" 20 21 // IsFifo checks if a file is a (named pipe) fifo 22 // if the file does not exist then it returns false 23 func IsFifo(path string) (bool, error) { 24 stat, err := os.Stat(path) 25 if err != nil { 26 if os.IsNotExist(err) { 27 return false, nil 28 } 29 return false, err 30 } 31 if stat.Mode()&os.ModeNamedPipe == os.ModeNamedPipe { 32 return true, nil 33 } 34 return false, nil 35 }