Coverage Report

Created: 2023-06-07 06:30

/src/json_load_fuzzer.c
Line
Count
Source (jump to first uncovered line)
1
/* Copyright 2023 Google LLC
2
Licensed under the Apache License, Version 2.0 (the "License");
3
you may not use this file except in compliance with the License.
4
You may obtain a copy of the License at
5
      http://www.apache.org/licenses/LICENSE-2.0
6
Unless required by applicable law or agreed to in writing, software
7
distributed under the License is distributed on an "AS IS" BASIS,
8
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
9
See the License for the specific language governing permissions and
10
limitations under the License.
11
*/
12
13
#include <stdint.h>
14
#include <stdio.h>
15
#include <stdlib.h>
16
17
#include "cJSON.h"
18
#include "loader.h"
19
20
/*
21
 * Targets the custom version of cJson.
22
 */
23
1.40k
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
24
1.40k
  char filename[256];
25
1.40k
  sprintf(filename, "/tmp/libfuzzer.%d", getpid());
26
27
1.40k
  FILE *fp = fopen(filename, "wb");
28
1.40k
  if (!fp) {
29
0
    return 0;
30
0
  }
31
1.40k
  fwrite(data, size, 1, fp);
32
1.40k
  fclose(fp);
33
34
1.40k
  cJSON *json = NULL;
35
1.40k
  loader_get_json(NULL, filename, &json);
36
1.40k
  if (json != NULL) {
37
718
    free(json);
38
718
  }
39
1.40k
  unlink(filename);
40
41
1.40k
  return 0;
42
1.40k
}