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5f10701f PP |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
5f10701f PP |
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 | ||
36 | static int | |
37 | do_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 | ||
56 | static int | |
57 | do_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 | ||
75 | static int | |
76 | do_test (void) | |
77 | { | |
78 | return do_test_narrow () + do_test_wide (); | |
79 | } | |
80 | ||
81 | #include <support/test-driver.c> |