Clean up __exit_thread.
[glibc.git] / stdio-common / errnobug.c
blob5063fbddcae8ad3c60a630e5e016c517131a1266
1 /* Regression test for reported old bug that errno is clobbered
2 by the first successful output to a stream on an unseekable object.
3 Copyright (C) 1995-2014 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
20 #include <errno.h>
21 #include <stdio.h>
22 #include <unistd.h>
24 int
25 main (void)
27 int fd[2];
28 FILE *f;
30 /* Get a stream that cannot seek. */
32 if (pipe (fd))
34 perror ("pipe");
35 return 1;
37 f = fdopen (fd[1], "w");
38 if (f == NULL)
40 perror ("fdopen");
41 return 1;
44 errno = 0;
45 if (fputs ("fnord", f) == EOF)
47 perror ("fputs");
48 return 1;
51 if (errno)
53 perror ("errno gratuitously set -- TEST FAILED");
54 return 1;
57 puts ("Test succeeded.");
58 return 0;