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91b6eb1140
This is intended as a type-safe alternative to obstacks and hand-written realloc constructs. The implementation avoids writing function pointers to the heap.
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/* Test reporting of out-of-bounds access for dynamic arrays.
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Copyright (C) 2017 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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<http://www.gnu.org/licenses/>. */
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#include "tst-dynarray-shared.h"
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#include <signal.h>
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#include <stdint.h>
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#include <string.h>
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#include <support/capture_subprocess.h>
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#include <support/check.h>
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/* Run CALLBACK and check that the data on standard error equals
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EXPECTED. */
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static void
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check (const char *test, void (*callback) (void *), size_t index,
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const char *expected)
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{
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struct support_capture_subprocess result
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= support_capture_subprocess (callback, &index);
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if (strcmp (result.err.buffer, expected) != 0)
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{
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support_record_failure ();
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printf ("error: test %s (%zu) unexpected standard error data\n"
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" expected: %s\n"
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" actual: %s\n",
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test, index, expected, result.err.buffer);
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}
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TEST_VERIFY (strlen (result.out.buffer) == 0);
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TEST_VERIFY (WIFSIGNALED (result.status));
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if (WIFSIGNALED (result.status))
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TEST_VERIFY (WTERMSIG (result.status) == SIGABRT);
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support_capture_subprocess_free (&result);
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}
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/* Try indexing an empty array. */
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static void
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test_empty (void *closure)
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{
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size_t *pindex = closure;
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struct dynarray_int dyn;
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dynarray_int_init (&dyn);
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dynarray_int_at (&dyn, *pindex);
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}
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/* Try indexing a one-element array. */
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static void
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test_one (void *closure)
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{
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size_t *pindex = closure;
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struct dynarray_int dyn;
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dynarray_int_init (&dyn);
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TEST_VERIFY (dynarray_int_resize (&dyn, 1));
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dynarray_int_at (&dyn, *pindex);
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}
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/* Try indexing a longer array. */
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static void
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test_many (void *closure)
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{
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size_t *pindex = closure;
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struct dynarray_int dyn;
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dynarray_int_init (&dyn);
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TEST_VERIFY (dynarray_int_resize (&dyn, 5371));
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dynarray_int_at (&dyn, *pindex);
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}
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/* (size_t) -1 for use in string literals. */
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#if SIZE_WIDTH == 32
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# define MINUS_1 "4294967295"
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#elif SIZE_WIDTH == 64
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# define MINUS_1 "18446744073709551615"
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#else
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# error "unknown value for SIZE_WIDTH"
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#endif
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static int
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do_test (void)
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{
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TEST_VERIFY (setenv ("LIBC_FATAL_STDERR_", "1", 1) == 0);
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check ("test_empty", test_empty, 0,
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"Fatal glibc error: array index 0 not less than array length 0\n");
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check ("test_empty", test_empty, 1,
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"Fatal glibc error: array index 1 not less than array length 0\n");
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check ("test_empty", test_empty, -1,
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"Fatal glibc error: array index " MINUS_1
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" not less than array length 0\n");
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check ("test_one", test_one, 1,
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"Fatal glibc error: array index 1 not less than array length 1\n");
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check ("test_one", test_one, 2,
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"Fatal glibc error: array index 2 not less than array length 1\n");
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check ("test_one", test_one, -1,
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"Fatal glibc error: array index " MINUS_1
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" not less than array length 1\n");
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check ("test_many", test_many, 5371,
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"Fatal glibc error: array index 5371"
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" not less than array length 5371\n");
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check ("test_many", test_many, 5372,
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"Fatal glibc error: array index 5372"
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" not less than array length 5371\n");
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check ("test_many", test_many, -1,
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"Fatal glibc error: array index " MINUS_1
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" not less than array length 5371\n");
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return 0;
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}
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#include <support/test-driver.c>
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