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54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* Test for integer/buffer overflow in strtod.
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Copyright (C) 2012-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <support/blob_repeat.h>
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#include <support/test-driver.h>
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#define EXPONENT "e-2147483649"
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#define SIZE 214748364
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static int
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do_test (void)
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{
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struct support_blob_repeat repeat = support_blob_repeat_allocate
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("0", 1, 1 + SIZE + sizeof (EXPONENT));
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if (repeat.size == 0)
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{
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puts ("warning: memory allocation failed, cannot test for overflow");
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return EXIT_UNSUPPORTED;
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}
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char *p = repeat.start;
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p[0] = '1';
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memcpy (p + 1 + SIZE, EXPONENT, sizeof (EXPONENT));
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double d = strtod (p, NULL);
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if (d != 0)
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{
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printf ("error: strtod returned wrong value: %a\n", d);
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return 1;
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}
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support_blob_repeat_free (&repeat);
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#define TIMEOUT 30
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#include "../test-skeleton.c"
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