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%% options
copyright owner = Dirk Krause
copyright year = 2015-xxxx
SPDX-License-Identifier: BSD-3-Clause
%% header
/** @file
Check whether a file pointer
is connected to a terminal.
CRT on Windows: Required.
*/
#ifndef DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif
#ifndef DK4TYPES_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif
#ifndef DK4ERROR_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4error.h"
#else
#include <dktools-4/dk4error.h>
#endif
#endif
#ifndef STDIO_H_INCLUDED
#include <stdio.h>
#define STDIO_H_INCLUDED 1
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Check whether the file descriptor is connected to a
tty (terminal, printer, serial line).
@param fd File descriptor to check.
@param erp Error report, may be NULL.
@return 1 for tty, 0 for other file descriptor, -1 on error.
Error codes:
- DK4_E_NOT_SUPPORTED<br>
if not isatty() or _isatty() function available on the system.
*/
int
dk4istty(int fd, dk4_er_t *erp);
/** Check whether a FILE pointer is connected to a tty
(terminal, printer, serial line).
@param fipo FILE to check.
@param erp Error report, may be NULL.
@return 1 for tty, 0 for other file descriptor, -1 on error.
*/
int
dk4istty_file(FILE *fipo, dk4_er_t *erp);
#ifdef __cplusplus
}
#endif
%% module
#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"
$!trace-include
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;
}
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