blob: 3727e8adfbc766d7197234a2006b15ca1f8171c1 [file] [log] [blame]
Jonathan Hartf86817b2018-08-17 10:35:54 -07001// Based on ssh/terminal:
2// Copyright 2011 The Go Authors. All rights reserved.
3// Use of this source code is governed by a BSD-style
4// license that can be found in the LICENSE file.
5
6// +build windows,!appengine
7
8package logrus
9
10import (
11 "syscall"
12 "unsafe"
13)
14
15var kernel32 = syscall.NewLazyDLL("kernel32.dll")
16
17var (
18 procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
19)
20
21// IsTerminal returns true if stderr's file descriptor is a terminal.
22func IsTerminal() bool {
23 fd := syscall.Stderr
24 var st uint32
25 r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
26 return r != 0 && e == 0
27}