> So here's a version (rewriting xmalloc.c completely,
> so see the whole file below instead of a diff):
>
> If the caller requests zero bytes, log the case and fail.
> Let's see the fallout; where in sox do we ask for zero bytes?
>
> If size > 0 and malloc fails, fail right away, obviously
> - displaying the system error, not one made up.
>
> Otherwise, return the malloc() result.
Here is a better version: if the *alloc failed, fail;
otherwise, just return whatever the caller asked for.
/* SoX Memory allocation functions
*
* Copyright (c) 2005-2006 Reuben Thomas
* Copyright (c) 2024 Jan Starý
*
* This 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.
*
* This 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 this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <err.h>
#include "sox_i.h"
void *
lsx_malloc(size_t size)
{
void * ptr;
if ((ptr = malloc(size)) == NULL)
err(2, NULL);
return ptr;
}
void *
lsx_calloc(size_t num, size_t size)
{
void * ptr;
if ((ptr = calloc(num, size)) == NULL)
err(2, NULL);
return ptr;
}
void *
lsx_realloc(void *ptr, size_t newsize)
{
if ((ptr = realloc(ptr, newsize)) == NULL)
err(2, NULL);
return ptr;
}
void *
lsx_realloc_array(void *p, size_t num, size_t size)
{
if (num > ((size_t)-1) / size) {
lsx_fail("reallocation size overflow");
exit(2);
}
return lsx_realloc(p, num * size);
}
char *
lsx_strdup(const char *s)
{
char * ptr;
if ((ptr = strdup(s)) == NULL)
err(2, NULL);
return ptr;
}
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