1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif
#include "../cJSON.h"
int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size); /* required by C89 */
int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
{
cJSON *json;
size_t offset = 4;
unsigned char *copied;
char *printed_json = NULL;
int minify, require_termination, formatted, buffered;
if(size <= offset) return 0;
if(data[size-1] != '\0') return 0;
if(data[0] != '1' && data[0] != '0') return 0;
if(data[1] != '1' && data[1] != '0') return 0;
if(data[2] != '1' && data[2] != '0') return 0;
if(data[3] != '1' && data[3] != '0') return 0;
minify = data[0] == '1' ? 1 : 0;
require_termination = data[1] == '1' ? 1 : 0;
formatted = data[2] == '1' ? 1 : 0;
buffered = data[3] == '1' ? 1 : 0;
json = cJSON_ParseWithOpts((const char*)data + offset, NULL, require_termination);
if(json == NULL) return 0;
if(buffered)
{
printed_json = cJSON_PrintBuffered(json, 1, formatted);
}
else
{
/* unbuffered printing */
if(formatted)
{
printed_json = cJSON_Print(json);
}
else
{
printed_json = cJSON_PrintUnformatted(json);
}
}
if(printed_json != NULL) free(printed_json);
if(minify)
{
copied = (unsigned char*)malloc(size);
if(copied == NULL) return 0;
memcpy(copied, data, size);
cJSON_Minify((char*)copied + offset);
free(copied);
}
cJSON_Delete(json);
return 0;
}
#ifdef __cplusplus
}
#endif
|
