1 | /* Test reporting of out-of-bounds access for dynamic arrays. |
2 | Copyright (C) 2017-2022 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 | #include "tst-dynarray-shared.h" |
20 | |
21 | #include <signal.h> |
22 | #include <stdint.h> |
23 | #include <string.h> |
24 | #include <support/capture_subprocess.h> |
25 | #include <support/check.h> |
26 | |
27 | /* Run CALLBACK and check that the data on standard error equals |
28 | EXPECTED. */ |
29 | static void |
30 | check (const char *test, void (*callback) (void *), size_t index, |
31 | const char *expected) |
32 | { |
33 | struct support_capture_subprocess result |
34 | = support_capture_subprocess (callback, closure: &index); |
35 | if (strcmp (result.err.buffer, expected) != 0) |
36 | { |
37 | support_record_failure (); |
38 | printf (format: "error: test %s (%zu) unexpected standard error data\n" |
39 | " expected: %s\n" |
40 | " actual: %s\n" , |
41 | test, index, expected, result.err.buffer); |
42 | } |
43 | TEST_VERIFY (strlen (result.out.buffer) == 0); |
44 | TEST_VERIFY (WIFSIGNALED (result.status)); |
45 | if (WIFSIGNALED (result.status)) |
46 | TEST_VERIFY (WTERMSIG (result.status) == SIGABRT); |
47 | support_capture_subprocess_free (&result); |
48 | } |
49 | |
50 | /* Try indexing an empty array. */ |
51 | static void |
52 | test_empty (void *closure) |
53 | { |
54 | size_t *pindex = closure; |
55 | struct dynarray_int dyn; |
56 | dynarray_int_init (list: &dyn); |
57 | dynarray_int_at (list: &dyn, index: *pindex); |
58 | } |
59 | |
60 | /* Try indexing a one-element array. */ |
61 | static void |
62 | test_one (void *closure) |
63 | { |
64 | size_t *pindex = closure; |
65 | struct dynarray_int dyn; |
66 | dynarray_int_init (list: &dyn); |
67 | TEST_VERIFY (dynarray_int_resize (&dyn, 1)); |
68 | dynarray_int_at (list: &dyn, index: *pindex); |
69 | } |
70 | |
71 | /* Try indexing a longer array. */ |
72 | static void |
73 | test_many (void *closure) |
74 | { |
75 | size_t *pindex = closure; |
76 | struct dynarray_int dyn; |
77 | dynarray_int_init (list: &dyn); |
78 | TEST_VERIFY (dynarray_int_resize (&dyn, 5371)); |
79 | dynarray_int_at (list: &dyn, index: *pindex); |
80 | } |
81 | |
82 | /* (size_t) -1 for use in string literals. */ |
83 | #if SIZE_WIDTH == 32 |
84 | # define MINUS_1 "4294967295" |
85 | #elif SIZE_WIDTH == 64 |
86 | # define MINUS_1 "18446744073709551615" |
87 | #else |
88 | # error "unknown value for SIZE_WIDTH" |
89 | #endif |
90 | |
91 | static int |
92 | do_test (void) |
93 | { |
94 | TEST_VERIFY (setenv ("LIBC_FATAL_STDERR_" , "1" , 1) == 0); |
95 | |
96 | check (test: "test_empty" , callback: test_empty, index: 0, |
97 | expected: "Fatal glibc error: array index 0 not less than array length 0\n" ); |
98 | check (test: "test_empty" , callback: test_empty, index: 1, |
99 | expected: "Fatal glibc error: array index 1 not less than array length 0\n" ); |
100 | check (test: "test_empty" , callback: test_empty, index: -1, |
101 | expected: "Fatal glibc error: array index " MINUS_1 |
102 | " not less than array length 0\n" ); |
103 | |
104 | check (test: "test_one" , callback: test_one, index: 1, |
105 | expected: "Fatal glibc error: array index 1 not less than array length 1\n" ); |
106 | check (test: "test_one" , callback: test_one, index: 2, |
107 | expected: "Fatal glibc error: array index 2 not less than array length 1\n" ); |
108 | check (test: "test_one" , callback: test_one, index: -1, |
109 | expected: "Fatal glibc error: array index " MINUS_1 |
110 | " not less than array length 1\n" ); |
111 | |
112 | check (test: "test_many" , callback: test_many, index: 5371, |
113 | expected: "Fatal glibc error: array index 5371" |
114 | " not less than array length 5371\n" ); |
115 | check (test: "test_many" , callback: test_many, index: 5372, |
116 | expected: "Fatal glibc error: array index 5372" |
117 | " not less than array length 5371\n" ); |
118 | check (test: "test_many" , callback: test_many, index: -1, |
119 | expected: "Fatal glibc error: array index " MINUS_1 |
120 | " not less than array length 5371\n" ); |
121 | |
122 | return 0; |
123 | } |
124 | |
125 | #include <support/test-driver.c> |
126 | |