elves/elvish

//go:build unix

package daemon

import (
    "os"
    "syscall"

    "golang.org/x/sys/unix"
)

var errConnRefused = syscall.ECONNREFUSED

// Make sure that files created by the daemon is not accessible to other users.
func setUmaskForDaemon() { unix.Umask(0077) }

func procAttrForSpawn(files []*os.File) *os.ProcAttr {
    return &os.ProcAttr{
        Dir:   "/",
        Env:   []string{},
        Files: files,
        Sys: &syscall.SysProcAttr{
            Setsid: true, // detach from current terminal
        },
    }
}