1 | /* Test that assigning to stdout redirects puts, putchar, etc (BZ#24051) |
2 | Copyright (C) 2019-2022 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 | <https://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 | |
36 | static int |
37 | do_test_narrow (void) |
38 | { |
39 | char buf[100]; |
40 | int fd = create_temp_file (base: "tst-bz24051" , NULL); |
41 | stdout = fdopen (fd, "w+" ); |
42 | TEST_VERIFY_EXIT (stdout != NULL); |
43 | |
44 | printf (format: "ab%s" , "cd" ); |
45 | putchar (c: 'e'); |
46 | putchar_unlocked (c: 'f'); |
47 | puts (s: "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 (base: "tst-bz24051w" , NULL); |
61 | stdout = fdopen (fd, "w+" ); |
62 | TEST_VERIFY_EXIT (stdout != NULL); |
63 | |
64 | wprintf (format: L"ab%ls" , L"cd" ); |
65 | putwchar (wc: L'e'); |
66 | putwchar_unlocked (wc: 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> |
82 | |