package utils

import (
	"os"
	"strings"
)

// IsUnixSockFile check if specified file is local unix socket file.
// Unlike named pipes which allow only unidirectional data flow, sockets are fully duplex-capable.
// A UNIX socket is marked with an s as the first letter of the mode string, e.g.
// srwxrwxrwx /tmp/.X11-unix/X0
func IsUnixSockFile(filename string) bool {
	if strings.HasPrefix(filename, "unix://") {
		filename = filename[len("unix://"):]
	}

	info, err := os.Stat(filename)
	if err != nil {
		return false
	}

	return (info.Mode() & os.ModeSocket) != 0
}