1 /* Test for the long double variants of *w*printf_chk functions.
2 Copyright (C) 2019-2021 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 #define _FORTIFY_SOURCE 2
20
21 #include <stdarg.h>
22 #include <stdint.h>
23 #include <stdio.h>
24 #include <wchar.h>
25
26 #include <support/capture_subprocess.h>
27 #include <support/check.h>
28
29 static void
do_test_call_varg(FILE * stream,const wchar_t * format,...)30 do_test_call_varg (FILE *stream, const wchar_t *format, ...)
31 {
32 wchar_t string[128];
33 va_list args;
34
35 wprintf (L"%20Ls", L"__vfwprintf_chk: ");
36 va_start (args, format);
37 __vfwprintf_chk (stream, 1, format, args);
38 va_end (args);
39 wprintf (L"\n");
40
41 wprintf (L"%20Ls", L"__vswprintf_chk: ");
42 va_start (args, format);
43 __vswprintf_chk (string, 79, 1, 127, format, args);
44 va_end (args);
45 wprintf (L"%Ls", string);
46 wprintf (L"\n");
47
48 wprintf (L"%20Ls", L"__vwprintf_chk: ");
49 va_start (args, format);
50 __vwprintf_chk (1, format, args);
51 va_end (args);
52 wprintf (L"\n");
53 }
54
55 static void
do_test_call_rarg(FILE * stream,const wchar_t * format,long double ld,double d)56 do_test_call_rarg (FILE *stream, const wchar_t *format, long double ld,
57 double d)
58 {
59 wchar_t string[128];
60
61 wprintf (L"%20Ls", L"__fwprintf_chk: ");
62 __fwprintf_chk (stream, 1, format, ld, d);
63 wprintf (L"\n");
64
65 wprintf (L"%20Ls", L"__swprintf_chk: ");
66 __swprintf_chk (string, 79, 1, 127, format, ld, d);
67 wprintf (L"%Ls", string);
68 wprintf (L"\n");
69
70 wprintf (L"%20Ls", L"__wprintf_chk: ");
71 __wprintf_chk (1, format, ld, d);
72 wprintf (L"\n");
73 }
74
75 static void
do_test_call(void)76 do_test_call (void)
77 {
78 long double ld = -1;
79 double d = -1;
80
81 /* Print in decimal notation. */
82 do_test_call_rarg (stdout, L"%.10Lf, %.10f", ld, d);
83 do_test_call_varg (stdout, L"%.10Lf, %.10f", ld, d);
84
85 /* Print in hexadecimal notation. */
86 do_test_call_rarg (stdout, L"%.10La, %.10a", ld, d);
87 do_test_call_varg (stdout, L"%.10La, %.10a", ld, d);
88
89 /* Test positional parameters. */
90 do_test_call_varg (stdout, L"%3$Lf, %2$Lf, %1$f",
91 (double) 1, (long double) 2, (long double) 3);
92 }
93
94 static int
do_test(void)95 do_test (void)
96 {
97 struct support_capture_subprocess result;
98 result = support_capture_subprocess ((void *) &do_test_call, NULL);
99
100 /* Compare against the expected output. */
101 const char *expected =
102 " __fwprintf_chk: -1.0000000000, -1.0000000000\n"
103 " __swprintf_chk: -1.0000000000, -1.0000000000\n"
104 " __wprintf_chk: -1.0000000000, -1.0000000000\n"
105 " __vfwprintf_chk: -1.0000000000, -1.0000000000\n"
106 " __vswprintf_chk: -1.0000000000, -1.0000000000\n"
107 " __vwprintf_chk: -1.0000000000, -1.0000000000\n"
108 " __fwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
109 " __swprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
110 " __wprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
111 " __vfwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
112 " __vswprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
113 " __vwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
114 " __vfwprintf_chk: 3.000000, 2.000000, 1.000000\n"
115 " __vswprintf_chk: 3.000000, 2.000000, 1.000000\n"
116 " __vwprintf_chk: 3.000000, 2.000000, 1.000000\n";
117 TEST_COMPARE_STRING (expected, result.out.buffer);
118
119 return 0;
120 }
121
122 #include <support/test-driver.c>
123