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 fs 18 19 import ( 20 "fmt" 21 "os" 22 "syscall" 23 ) 24 25 // copyIrregular covers devices, pipes, and sockets 26 func copyIrregular(dst string, fi os.FileInfo) error { 27 st, ok := fi.Sys().(*syscall.Stat_t) // not *unix.Stat_t 28 if !ok { 29 return fmt.Errorf("unsupported stat type: %s: %v", dst, fi.Mode()) 30 } 31 var rDev uint64 // uint64 on FreeBSD, int on other unixen 32 if fi.Mode()&os.ModeDevice == os.ModeDevice { 33 rDev = st.Rdev 34 } 35 return syscall.Mknod(dst, uint32(st.Mode), rDev) 36 } 37