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/* t-malloc.c - Check some malloc functions
* Copyright (C) 2020 g10 Code GmbH
*
* This file is part of Libgpg-error.
*
* Libgpg-error 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.
*
* Libgpg-error 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
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <unistd.h>
#include <errno.h>
#define PGM "t-malloc"
#include "t-common.h"
static const char *
my_strusage (int level)
{
const char *p;
switch (level)
{
case 9: p = "LGPL-2.1-or-later"; break;
case 11: p = PGM; break;
default: p = NULL;
}
return p;
}
static void
check_reallocarray (void)
{
struct foo_s { const char *a; int b; } *array;
size_t n;
array = gpgrt_calloc (10, sizeof *array);
if (!array)
die ("%s: malloc failed\n", __func__);
for (n=0; n < 10; n++)
if (array[n].a || array[n].b)
fail ("%s: array not cleared at index %zu\n", __func__, n);
for (n=0; n < 10; n++)
{
array[n].a = "dummy string";
array[n].b = 100+n;
}
array = gpgrt_reallocarray (array, 10, 20, sizeof *array);
if (!array)
die ("%s: realloc failed\n", __func__);
for (n=0; n < 10; n++)
{
if (!array[n].a || strcmp (array[n].a, "dummy string"))
fail ("%s: string in realloced array changed at index %zu\n",
__func__, n);
if (array[n].b != 100 + n)
fail ("%s: number in realloced array changed at index %zu\n",
__func__, n);
}
for (n=10; n < 20; n++)
if (array[n].a || array[n].b)
fail ("%s: realloced array not cleared at index %zu\n", __func__, n);
/* We can't easily check whether the reallocated array does not
* iniitialze in the case OLDN is equal or larger to N, so we skip
* this. Let's do a simple shrink test instead. */
array = gpgrt_reallocarray (array, 20, 7, sizeof *array);
if (!array)
die ("%s: realloc (shrinking) failed\n", __func__);
for (n=0; n < 7; n++)
{
if (!array[n].a || strcmp (array[n].a, "dummy string"))
fail ("%s: string in shrunk array changed at index %zu\n",
__func__, n);
if (array[n].b != 100 + n)
fail ("%s: number in shrunk array changed at index %zu\n",
__func__, n);
}
xfree (array);
}
int
main (int argc, char **argv)
{
gpgrt_opt_t opts[] = {
ARGPARSE_x ('v', "verbose", NONE, 0, "Print more diagnostics"),
ARGPARSE_s_n('d', "debug", "Flyswatter"),
ARGPARSE_end()
};
gpgrt_argparse_t pargs = { &argc, &argv, 0 };
gpgrt_set_strusage (my_strusage);
gpgrt_log_set_prefix (gpgrt_strusage (11), GPGRT_LOG_WITH_PREFIX);
while (gpgrt_argparse (NULL, &pargs, opts))
{
switch (pargs.r_opt)
{
case 'v': verbose++; break;
case 'd': debug++; break;
default : pargs.err = ARGPARSE_PRINT_ERROR; break;
}
}
gpgrt_argparse (NULL, &pargs, NULL);
show ("testing malloc functions\n");
check_reallocarray ();
return !!errorcount;
}