1 // Copyright 2020 Google LLC
2 //
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 "yaml.h"
16 #include <assert.h>
17 #include <stdlib.h>
18 #include <stdio.h>
19 #include <string.h>
20 #include <stdint.h>
21 #include <stdbool.h>
22 
23 #ifdef NDEBUG
24 #undef NDEBUG
25 #endif
26 
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)27 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
28   yaml_parser_t parser;
29   yaml_event_t event;
30   bool done = false;
31 
32   if(!yaml_parser_initialize(&parser))
33     return 0;
34 
35   yaml_parser_set_input_string(&parser, data, size);
36 
37   while (!done)
38   {
39       if (!yaml_parser_parse(&parser, &event)) break;
40 
41       done = (event.type == YAML_STREAM_END_EVENT);
42 
43       yaml_event_delete(&event);
44   }
45 
46   yaml_parser_delete(&parser);
47 
48   return 0;
49 }
50