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3e1f480e | 1 | /* Copyright (C) 1994, 1997, 2000 Free Software Foundation, Inc. |
c84142e8 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
c84142e8 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
28f540f4 | 8 | |
c84142e8 UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 17 | |
28f540f4 | 18 | #include <stdio.h> |
3e1f480e | 19 | #include <stdlib.h> |
28f540f4 RM |
20 | #include <unistd.h> |
21 | ||
22 | static int | |
c84142e8 | 23 | check (const char *name, FILE *stream, int fd) |
28f540f4 RM |
24 | { |
25 | int sfd = fileno (stream); | |
bf4de8f3 AJ |
26 | printf ("(fileno (%s) = %d) %c= %d\n", name, sfd, |
27 | sfd == fd ? '=' : '!', fd); | |
28f540f4 RM |
28 | return sfd != fd; |
29 | } | |
30 | ||
31 | int | |
c84142e8 | 32 | main (void) |
28f540f4 | 33 | { |
bf4de8f3 AJ |
34 | return (check ("stdin", stdin, STDIN_FILENO) || |
35 | check ("stdout", stdout, STDOUT_FILENO) || | |
36 | check ("stderr", stderr, STDERR_FILENO)); | |
28f540f4 | 37 | } |