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
check(const char * name,FILE * stream,int fd)23 check (const char *name, FILE *stream, int fd)
24 {
25 int sfd = fileno (stream);
26 printf ("(fileno (%s) = %d) %c= %d\n", name, sfd,
27 sfd == fd ? '=' : '!', fd);
28 return sfd != fd;
29 }
30
31 static int
do_test(void)32 do_test (void)
33 {
34 return (check ("stdin", stdin, STDIN_FILENO)
35 || check ("stdout", stdout, STDOUT_FILENO)
36 || check ("stderr", stderr, STDERR_FILENO));
37 }
38
39 #define TEST_FUNCTION do_test ()
40 #include "../test-skeleton.c"
41