grub/grub-core/lib/posix_wrap/stdlib.h
Peter Jones 64e26162eb calloc: Make sure we always have an overflow-checking calloc() available
This tries to make sure that everywhere in this source tree, we always have
an appropriate version of calloc() (i.e. grub_calloc(), xcalloc(), etc.)
available, and that they all safely check for overflow and return NULL when
it would occur.

Signed-off-by: Peter Jones <pjones@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-07-29 16:55:47 +02:00

61 lines
1.3 KiB
C

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009, 2010 Free Software Foundation, Inc.
*
* GRUB 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.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_POSIX_STDLIB_H
#define GRUB_POSIX_STDLIB_H 1
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/safemath.h>
static inline void
free (void *ptr)
{
grub_free (ptr);
}
static inline void *
malloc (grub_size_t size)
{
return grub_malloc (size);
}
static inline void *
calloc (grub_size_t size, grub_size_t nelem)
{
grub_size_t sz;
if (grub_mul (size, nelem, &sz))
return NULL;
return grub_zalloc (sz);
}
static inline void *
realloc (void *ptr, grub_size_t size)
{
return grub_realloc (ptr, size);
}
static inline int
abs (int c)
{
return (c >= 0) ? c : -c;
}
#endif