1*600f14f4SXin Li /* alloc - Convenience routines for safely allocating memory
2*600f14f4SXin Li * Copyright (C) 2007-2009 Josh Coalson
3*600f14f4SXin Li * Copyright (C) 2011-2023 Xiph.Org Foundation
4*600f14f4SXin Li *
5*600f14f4SXin Li * Redistribution and use in source and binary forms, with or without
6*600f14f4SXin Li * modification, are permitted provided that the following conditions
7*600f14f4SXin Li * are met:
8*600f14f4SXin Li *
9*600f14f4SXin Li * - Redistributions of source code must retain the above copyright
10*600f14f4SXin Li * notice, this list of conditions and the following disclaimer.
11*600f14f4SXin Li *
12*600f14f4SXin Li * - Redistributions in binary form must reproduce the above copyright
13*600f14f4SXin Li * notice, this list of conditions and the following disclaimer in the
14*600f14f4SXin Li * documentation and/or other materials provided with the distribution.
15*600f14f4SXin Li *
16*600f14f4SXin Li * - Neither the name of the Xiph.org Foundation nor the names of its
17*600f14f4SXin Li * contributors may be used to endorse or promote products derived from
18*600f14f4SXin Li * this software without specific prior written permission.
19*600f14f4SXin Li *
20*600f14f4SXin Li * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21*600f14f4SXin Li * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22*600f14f4SXin Li * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23*600f14f4SXin Li * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
24*600f14f4SXin Li * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25*600f14f4SXin Li * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26*600f14f4SXin Li * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27*600f14f4SXin Li * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28*600f14f4SXin Li * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29*600f14f4SXin Li * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30*600f14f4SXin Li * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31*600f14f4SXin Li */
32*600f14f4SXin Li
33*600f14f4SXin Li #ifdef HAVE_CONFIG_H
34*600f14f4SXin Li #include "config.h"
35*600f14f4SXin Li #endif
36*600f14f4SXin Li
37*600f14f4SXin Li #include <stdlib.h>
38*600f14f4SXin Li
39*600f14f4SXin Li #include "share/alloc.h"
40*600f14f4SXin Li
safe_malloc_mul_2op_(size_t size1,size_t size2)41*600f14f4SXin Li void *safe_malloc_mul_2op_(size_t size1, size_t size2)
42*600f14f4SXin Li {
43*600f14f4SXin Li if(!size1 || !size2)
44*600f14f4SXin Li return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
45*600f14f4SXin Li if(size1 > SIZE_MAX / size2)
46*600f14f4SXin Li return 0;
47*600f14f4SXin Li return malloc(size1*size2);
48*600f14f4SXin Li }
49