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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:11:47 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:11:47 +0000 |
commit | 758f820bcc0f68aeebac1717e537ca13a320b909 (patch) | |
tree | 48111ece75cf4f98316848b37a7e26356e00669e /gnulib-tests/test-reallocarray.c | |
parent | Initial commit. (diff) | |
download | coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.tar.xz coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.zip |
Adding upstream version 9.1.upstream/9.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gnulib-tests/test-reallocarray.c')
-rw-r--r-- | gnulib-tests/test-reallocarray.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/gnulib-tests/test-reallocarray.c b/gnulib-tests/test-reallocarray.c new file mode 100644 index 0000000..b830361 --- /dev/null +++ b/gnulib-tests/test-reallocarray.c @@ -0,0 +1,58 @@ +/* Test of reallocarray function. + Copyright (C) 2010-2022 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include <stdlib.h> + +#include <errno.h> +#include <stdint.h> + +#include "signature.h" +SIGNATURE_CHECK (reallocarray, void *, (void *, size_t, size_t)); + +#include "macros.h" + +int +main () +{ + /* Check that reallocarray fails when requested to allocate a block + of memory larger than PTRDIFF_MAX or SIZE_MAX bytes. */ + for (size_t n = 2; n != 0; n <<= 1) + { + void *volatile p = NULL; + + if (PTRDIFF_MAX / n + 1 <= SIZE_MAX) + { + p = reallocarray (p, PTRDIFF_MAX / n + 1, n); + ASSERT (p == NULL); + ASSERT (errno == ENOMEM); + } + + p = reallocarray (p, SIZE_MAX / n + 1, n); + ASSERT (p == NULL); + ASSERT (errno == ENOMEM + || errno == EOVERFLOW /* NetBSD */); + + /* Reallocarray should not crash with zero sizes. */ + p = reallocarray (p, 0, n); + p = reallocarray (p, n, 0); + free (p); + } + + return 0; +} |