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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin dragonfly freebsd linux,!appengine netbsd openbsd
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package readline
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import (
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	"syscall"
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	"unsafe"
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)
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type Termios syscall.Termios
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// GetSize returns the dimensions of the given terminal.
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func GetSize(fd int) (int, int, error) {
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	var dimensions [4]uint16
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	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), uintptr(syscall.TIOCGWINSZ), uintptr(unsafe.Pointer(&dimensions)), 0, 0, 0)
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	if err != 0 {
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		return 0, 0, err
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	}
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	return int(dimensions[1]), int(dimensions[0]), nil
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}
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