/
uds-socket.go
56 lines (52 loc) · 1.29 KB
/
uds-socket.go
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/*
* Copyright 2022 InfAI (CC SES)
*
* 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 srv_base
import (
"io/fs"
"net"
"os"
)
func clean(path string) (err error) {
if _, err = os.Stat(path); err == nil {
return os.Remove(path)
} else if os.IsNotExist(err) {
err = nil
}
return
}
func NewUnixListener(path string, uid int, gid int, mode fs.FileMode) (listener *net.UnixListener, err error) {
if err = clean(path); err != nil {
return
}
if listener, err = net.ListenUnix("unix", &net.UnixAddr{Name: path, Net: "unix"}); err != nil {
return
}
defer func() {
if err != nil {
_ = listener.Close()
_ = clean(path)
}
}()
if os.Getuid() == 0 {
if err = os.Chown(path, uid, gid); err != nil {
return
}
}
if err = os.Chmod(path, mode); err != nil {
return
}
return
}