diff options
Diffstat (limited to 'REORG.TODO/malloc/tst-valloc.c')
-rw-r--r-- | REORG.TODO/malloc/tst-valloc.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/REORG.TODO/malloc/tst-valloc.c b/REORG.TODO/malloc/tst-valloc.c new file mode 100644 index 0000000000..57161f6b7d --- /dev/null +++ b/REORG.TODO/malloc/tst-valloc.c @@ -0,0 +1,99 @@ +/* Test for valloc. + Copyright (C) 2013-2017 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 <errno.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> + +static int errors = 0; + +static void +merror (const char *msg) +{ + ++errors; + printf ("Error: %s\n", msg); +} + +static int +do_test (void) +{ + void *p; + unsigned long pagesize = getpagesize (); + unsigned long ptrval; + int save; + + errno = 0; + + /* An attempt to allocate a huge value should return NULL and set + errno to ENOMEM. */ + p = valloc (-1); + + save = errno; + + if (p != NULL) + merror ("valloc (-1) succeeded."); + + if (p == NULL && save != ENOMEM) + merror ("valloc (-1) errno is not set correctly"); + + free (p); + + errno = 0; + + /* Test to expose integer overflow in malloc internals from BZ #15856. */ + p = valloc (-pagesize); + + save = errno; + + if (p != NULL) + merror ("valloc (-pagesize) succeeded."); + + if (p == NULL && save != ENOMEM) + merror ("valloc (-pagesize) errno is not set correctly"); + + free (p); + + /* A zero-sized allocation should succeed with glibc, returning a + non-NULL value. */ + p = valloc (0); + + if (p == NULL) + merror ("valloc (0) failed."); + + free (p); + + /* Check the alignment of the returned pointer is correct. */ + p = valloc (32); + + if (p == NULL) + merror ("valloc (32) failed."); + + ptrval = (unsigned long) p; + + if ((ptrval & (pagesize - 1)) != 0) + merror ("returned pointer is not page aligned."); + + free (p); + + return errors != 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |