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#include <execinfo.h>
16#include <stdlib.h>
17#include <string.h>
18#include "functionalext.h"
19
20#define ZERO_LENGTH 0
21#define INVALID_LENGTH (-1)
22#define VALID_LENGTH 1
23#define ZERO_RESULT 0
24#define BT_BUF_SIZE 100
25#define SUCCESS_RESULT 1
26#define FAILURE_RESULT 0
27
28int checkString(char **bt_strings, int bt_size)
29{
30    for (int i = 0; i < bt_size; ++i) {
31        char *str = bt_strings[i];
32        char *left = strstr(str, "<");
33        char *right = strstr(str, ">");
34        if (left == NULL || right == NULL || left >= right) {
35            continue;
36        }
37        int flag = 0;
38        for (; left < right; left++) {
39            if (*left == '?') {
40                flag = 1;
41                break;
42            }
43        }
44        if (!flag) {
45            continue;
46        }
47        right = strstr(str, "/");
48        char *lastPtr = str + strlen(str);
49        if (right == NULL) {
50            continue;
51        }
52        for (; right != lastPtr; ++right) {
53            if (*right != '?') {
54                continue;
55            }
56        }
57        return FAILURE_RESULT;
58    }
59    return SUCCESS_RESULT;
60}
61
62void backtrace_1001()
63{
64    void *frames[10];
65    EXPECT_EQ("backtrace_1001", ZERO_RESULT, backtrace(frames, ZERO_LENGTH));
66}
67
68int backtrace_1002_supplement()
69{
70    void *frames[10];
71    return backtrace(frames, VALID_LENGTH);
72}
73
74void backtrace_1002()
75{
76    EXPECT_LT("backtrace_1002", 0, backtrace_1002_supplement());
77}
78
79void backtrace_1003()
80{
81    void *bt_buffer[BT_BUF_SIZE];
82    int bt_size = backtrace(bt_buffer, BT_BUF_SIZE);
83    char **bt_strings = backtrace_symbols(bt_buffer, bt_size);
84    EXPECT_PTRNE("backtrace_1003", bt_strings, NULL);
85    EXPECT_TRUE("backtrace_1003_checkString", checkString(bt_strings, bt_size));
86    free(bt_strings);
87}
88
89int main()
90{
91    backtrace_1001();
92    backtrace_1002();
93    backtrace_1003();
94    return t_status;
95}