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/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4istty.ctr
*/

/**	@file dk4istty.c The dk4istty module.
*/


#line 81 "dk4istty.ctr"

#include "dk4conf.h"
#include "dk4istty.h"

#if DK4_HAVE_UNISTD_H
#ifndef UNISTD_H_INCLUDED
#include <unistd.h>
#define	UNISTD_H_INCLUDED	1
#endif
#endif

#if DK4_HAVE_IO_H
#ifndef IO_H_INCLUDED
#include <io.h>
#define	IO_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_ASSERT_H
#ifndef	ASSERT_H_INCLUDED
#include <assert.h>
#define	ASSERT_H_INCLUDED 1
#endif
#endif

#include "dk4unused.h"





#line 111 "dk4istty.ctr"



int
dk4istty(
#if (DK4_HAVE_ISATTY) || (DK4_HAVE__ISATTY)
  int fd, dk4_er_t * DK4_ARG_UNUSED(erp)
#else
  int fd, dk4_er_t *erp
#endif
)
{
  int		 back	=	-1;
#if DK4_HAVE_ISATTY
  DK4_UNUSED_ARG(erp)
  if ( 0 != isatty(fd) ) {
    back = 1;
  } else {
    back = 0;
  }
#else
#if DK4_HAVE__ISATTY
  DK4_UNUSED_ARG(erp)
  if ( 0 != _isatty(fd) ) {
    back = 1;
  } else {
    back = 0;
  }
#else
  dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
#endif
#endif
  return back;
}



int
dk4istty_file(FILE *fipo, dk4_er_t *erp)
{
  int		 back	=	-1;
#if	DK4_USE_ASSERT
  assert(NULL != fipo);
#endif
  if (NULL != fipo) {
#if DK4_HAVE_FILENO
    back = dk4istty(fileno(fipo), erp);
#else
#if DK4_HAVE__FILENO
    back = dk4istty(_fileno(fipo), erp);
#else
    dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
#endif
#endif
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
}