1 | /* Copyright (C) 1994-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <stdio.h> |
19 | #include <stdlib.h> |
20 | #include <unistd.h> |
21 | |
22 | static int |
23 | check (const char *name, FILE *stream, int fd) |
24 | { |
25 | int sfd = fileno (stream); |
26 | printf (format: "(fileno (%s) = %d) %c= %d\n" , name, sfd, |
27 | sfd == fd ? '=' : '!', fd); |
28 | return sfd != fd; |
29 | } |
30 | |
31 | static int |
32 | do_test (void) |
33 | { |
34 | return (check (name: "stdin" , stdin, STDIN_FILENO) |
35 | || check (name: "stdout" , stdout, STDOUT_FILENO) |
36 | || check (name: "stderr" , stderr, STDERR_FILENO)); |
37 | } |
38 | |
39 | #define TEST_FUNCTION do_test () |
40 | #include "../test-skeleton.c" |
41 | |