diff options
Diffstat (limited to 'REORG.TODO/malloc/tst-dynarray-at-fail.c')
| -rw-r--r-- | REORG.TODO/malloc/tst-dynarray-at-fail.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/REORG.TODO/malloc/tst-dynarray-at-fail.c b/REORG.TODO/malloc/tst-dynarray-at-fail.c new file mode 100644 index 0000000000..bc1a48c5cb --- /dev/null +++ b/REORG.TODO/malloc/tst-dynarray-at-fail.c @@ -0,0 +1,125 @@ +/* Test reporting of out-of-bounds access for dynamic arrays. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "tst-dynarray-shared.h" + +#include <signal.h> +#include <stdint.h> +#include <string.h> +#include <support/capture_subprocess.h> +#include <support/check.h> + +/* Run CALLBACK and check that the data on standard error equals + EXPECTED. */ +static void +check (const char *test, void (*callback) (void *), size_t index, + const char *expected) +{ + struct support_capture_subprocess result + = support_capture_subprocess (callback, &index); + if (strcmp (result.err.buffer, expected) != 0) + { + support_record_failure (); + printf ("error: test %s (%zu) unexpected standard error data\n" + " expected: %s\n" + " actual: %s\n", + test, index, expected, result.err.buffer); + } + TEST_VERIFY (strlen (result.out.buffer) == 0); + TEST_VERIFY (WIFSIGNALED (result.status)); + if (WIFSIGNALED (result.status)) + TEST_VERIFY (WTERMSIG (result.status) == SIGABRT); + support_capture_subprocess_free (&result); +} + +/* Try indexing an empty array. */ +static void +test_empty (void *closure) +{ + size_t *pindex = closure; + struct dynarray_int dyn; + dynarray_int_init (&dyn); + dynarray_int_at (&dyn, *pindex); +} + +/* Try indexing a one-element array. */ +static void +test_one (void *closure) +{ + size_t *pindex = closure; + struct dynarray_int dyn; + dynarray_int_init (&dyn); + TEST_VERIFY (dynarray_int_resize (&dyn, 1)); + dynarray_int_at (&dyn, *pindex); +} + +/* Try indexing a longer array. */ +static void +test_many (void *closure) +{ + size_t *pindex = closure; + struct dynarray_int dyn; + dynarray_int_init (&dyn); + TEST_VERIFY (dynarray_int_resize (&dyn, 5371)); + dynarray_int_at (&dyn, *pindex); +} + +/* (size_t) -1 for use in string literals. */ +#if SIZE_WIDTH == 32 +# define MINUS_1 "4294967295" +#elif SIZE_WIDTH == 64 +# define MINUS_1 "18446744073709551615" +#else +# error "unknown value for SIZE_WIDTH" +#endif + +static int +do_test (void) +{ + TEST_VERIFY (setenv ("LIBC_FATAL_STDERR_", "1", 1) == 0); + + check ("test_empty", test_empty, 0, + "Fatal glibc error: array index 0 not less than array length 0\n"); + check ("test_empty", test_empty, 1, + "Fatal glibc error: array index 1 not less than array length 0\n"); + check ("test_empty", test_empty, -1, + "Fatal glibc error: array index " MINUS_1 + " not less than array length 0\n"); + + check ("test_one", test_one, 1, + "Fatal glibc error: array index 1 not less than array length 1\n"); + check ("test_one", test_one, 2, + "Fatal glibc error: array index 2 not less than array length 1\n"); + check ("test_one", test_one, -1, + "Fatal glibc error: array index " MINUS_1 + " not less than array length 1\n"); + + check ("test_many", test_many, 5371, + "Fatal glibc error: array index 5371" + " not less than array length 5371\n"); + check ("test_many", test_many, 5372, + "Fatal glibc error: array index 5372" + " not less than array length 5371\n"); + check ("test_many", test_many, -1, + "Fatal glibc error: array index " MINUS_1 + " not less than array length 5371\n"); + + return 0; +} + +#include <support/test-driver.c> |