rclone/vendor/github.com/sevlyar/go-daemon/syscall_dup.go

// +build !linux !arm64
// +build !windows
// +build go1.7

package daemon

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

func syscallDup(oldfd int, newfd int) (err error) {
	return unix.Dup2(oldfd, newfd)
}