1/*
2 * Copyright (C) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <stdlib.h>
17#include <unistd.h>
18#include <sys/wait.h>
19#include <errno.h>
20#include "test.h"
21
22#define MALLOC_SIZE_S 0x20
23#define MALLOC_SIZE_L 0x40
24#define IDX_IN_CHUNK (-3)
25
26static int get_slotnum(uint8_t *p)
27{
28	return (p[IDX_IN_CHUNK] & 0x1f);
29}
30
31int main(void)
32{
33	void *p = malloc(MALLOC_SIZE_S);
34	void *q = malloc(MALLOC_SIZE_S);
35	void *r = malloc(MALLOC_SIZE_S);
36	if (!p || !q || !r)
37		t_error("malloc returned NULL\n");
38
39	int slot_p_1 = get_slotnum((uint8_t *)p);
40	int slot_q_1 = get_slotnum((uint8_t *)q);
41	int slot_r_1 = get_slotnum((uint8_t *)r);
42
43	free(p);
44	free(q);
45	free(r);
46
47	p = malloc(MALLOC_SIZE_L);
48	q = malloc(MALLOC_SIZE_L);
49	r = malloc(MALLOC_SIZE_L);
50	if (!p || !q || !r)
51		t_error("malloc returned NULL\n");
52
53	int slot_p_2 = get_slotnum((uint8_t *)p);
54	int slot_q_2 = get_slotnum((uint8_t *)q);
55	int slot_r_2 = get_slotnum((uint8_t *)r);
56
57	free(p);
58	free(q);
59	free(r);
60
61	if (((slot_p_1 + 1) == slot_q_1) && ((slot_q_1 + 1) == slot_r_1)) {
62		if (((slot_p_2 + 1) == slot_q_2) && ((slot_q_2 + 1) == slot_r_2))
63			t_error("malloc(0) random error\n");
64	}
65	return t_status;
66}
67
68