1 /**
2 * Copyright (c) 2023 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 <signal.h>
17 #include <stdlib.h>
18 #include <stdio.h>
19 #include "gwp_asan.h"
20 #include "test.h"
21
invalid_free_left_handler()22 void invalid_free_left_handler()
23 {
24 find_and_check_file(GWP_ASAN_LOG_DIR, GWP_ASAN_LOG_TAG, "Invalid (Wild) Free");
25 find_and_check_file(GWP_ASAN_LOG_DIR, GWP_ASAN_LOG_TAG, "1 byte to the left");
26 clear_log(GWP_ASAN_LOG_DIR, GWP_ASAN_LOG_TAG);
27 _exit(0);
28 }
29
install_sigv_handler()30 static void install_sigv_handler()
31 {
32 struct sigaction sigv = {
33 .sa_handler = invalid_free_left_handler,
34 .sa_flags = 0,
35 };
36 sigaction(SIGSEGV, &sigv, NULL);
37 }
38
39
main()40 int main()
41 {
42 clear_log(GWP_ASAN_LOG_DIR, GWP_ASAN_LOG_TAG);
43 install_sigv_handler();
44 char *ptr = (char *)malloc(1);
45 if (!ptr) {
46 return 0;
47 }
48 free(ptr - 1);
49 return 0;
50 }