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1/* Test that assigning to stdout redirects puts, putchar, etc (BZ#24051)
2 Copyright (C) 2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19
20/* Prevent putchar -> _IO_putc inline expansion. */
21#define __NO_INLINE__
22#pragma GCC optimize("O0")
23
24#include <stdio.h>
25#include <string.h>
26#include <wchar.h>
27
28#include <array_length.h>
29#include <support/check.h>
30#include <support/temp_file.h>
31#include <support/test-driver.h>
32
33#undef putchar
34#undef putwchar
35
36static int
37do_test_narrow (void)
38{
39 char buf[100];
40 int fd = create_temp_file ("tst-bz24051", NULL);
41 stdout = fdopen (fd, "w+");
42 TEST_VERIFY_EXIT (stdout != NULL);
43
44 printf ("ab%s", "cd");
45 putchar ('e');
46 putchar_unlocked ('f');
47 puts ("ghi");
48
49 rewind (stdout);
50 TEST_VERIFY_EXIT (fgets (buf, sizeof (buf), stdout) != NULL);
51 TEST_VERIFY (strcmp (buf, "abcdefghi\n") == 0);
52
53 return 0;
54}
55
56static int
57do_test_wide (void)
58{
59 wchar_t buf[100];
60 int fd = create_temp_file ("tst-bz24051w", NULL);
61 stdout = fdopen (fd, "w+");
62 TEST_VERIFY_EXIT (stdout != NULL);
63
64 wprintf (L"ab%ls", L"cd");
65 putwchar (L'e');
66 putwchar_unlocked (L'f');
67
68 rewind (stdout);
69 TEST_VERIFY_EXIT (fgetws (buf, array_length (buf), stdout) != NULL);
70 TEST_VERIFY (wcscmp (buf, L"abcdef") == 0);
71
72 return 0;
73}
74
75static int
76do_test (void)
77{
78 return do_test_narrow () + do_test_wide ();
79}
80
81#include <support/test-driver.c>
82

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