// +build linux aix zos

// +build !appengine

package isatty

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

// IsTerminal return true if the file descriptor is terminal.

func IsTerminal(fd uintptr) bool {

	_, err := unix.IoctlGetTermios(int(fd), unix.TCGETS)

	return err == nil

}

// IsCygwinTerminal return true if the file descriptor is a cygwin or msys2

// terminal. This is also always false on this environment.

func IsCygwinTerminal(fd uintptr) bool {

	return false

}