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d6e70f43 | 1 | /* Test for integer/buffer overflow in strtod. |
2b778ceb | 2 | Copyright (C) 2012-2021 Free Software Foundation, Inc. |
d6e70f43 JM |
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/>. */ |
d6e70f43 JM |
18 | |
19 | #include <stdio.h> | |
20 | #include <stdlib.h> | |
21 | #include <string.h> | |
07da99aa FW |
22 | #include <support/blob_repeat.h> |
23 | #include <support/test-driver.h> | |
d6e70f43 JM |
24 | |
25 | #define EXPONENT "e-2147483649" | |
26 | #define SIZE 214748364 | |
27 | ||
28 | static int | |
29 | do_test (void) | |
30 | { | |
07da99aa FW |
31 | struct support_blob_repeat repeat = support_blob_repeat_allocate |
32 | ("0", 1, 1 + SIZE + sizeof (EXPONENT)); | |
33 | if (repeat.size == 0) | |
d6e70f43 | 34 | { |
07da99aa FW |
35 | puts ("warning: memory allocation failed, cannot test for overflow"); |
36 | return EXIT_UNSUPPORTED; | |
d6e70f43 | 37 | } |
07da99aa | 38 | char *p = repeat.start; |
d6e70f43 | 39 | p[0] = '1'; |
d6e70f43 JM |
40 | memcpy (p + 1 + SIZE, EXPONENT, sizeof (EXPONENT)); |
41 | double d = strtod (p, NULL); | |
42 | if (d != 0) | |
43 | { | |
07da99aa | 44 | printf ("error: strtod returned wrong value: %a\n", d); |
d6e70f43 JM |
45 | return 1; |
46 | } | |
07da99aa | 47 | support_blob_repeat_free (&repeat); |
d6e70f43 JM |
48 | return 0; |
49 | } | |
50 | ||
51 | #define TEST_FUNCTION do_test () | |
225f410f | 52 | #define TIMEOUT 30 |
d6e70f43 | 53 | #include "../test-skeleton.c" |