containerd/sys/socket_unix.go

37 lines
729 B
Go

// +build !windows
package sys
import (
"net"
"os"
"path/filepath"
"syscall"
)
// CreateUnixSocket creates a unix socket and returns the listener
func CreateUnixSocket(path string) (net.Listener, error) {
if err := os.MkdirAll(filepath.Dir(path), 0660); err != nil {
return nil, err
}
if err := syscall.Unlink(path); err != nil && !os.IsNotExist(err) {
return nil, err
}
return net.Listen("unix", path)
}
// GetLocalListener returns a listerner out of a unix socket.
func GetLocalListener(path string, uid, gid int) (net.Listener, error) {
l, err := CreateUnixSocket(path)
if err != nil {
return l, err
}
if err := os.Chown(path, uid, gid); err != nil {
l.Close()
return nil, err
}
return l, nil
}