| /* Test for valloc. |
| Copyright (C) 2013-2014 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" |