github.com/samgwo/go-ethereum@v1.8.2-0.20180302101319-49bcb5fbd55e/log/term/terminal_notwindows.go (about)

     1  // 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 linux,!appengine darwin freebsd openbsd netbsd
     7  
     8  package term
     9  
    10  import (
    11  	"syscall"
    12  	"unsafe"
    13  )
    14  
    15  // IsTty returns true if the given file descriptor is a terminal.
    16  func IsTty(fd uintptr) bool {
    17  	var termios Termios
    18  	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
    19  	return err == 0
    20  }