/src/cjson/fuzzing/cjson_read_fuzzer.c
Line | Count | Source (jump to first uncovered line) |
1 | | #include <stdlib.h> |
2 | | #include <stdint.h> |
3 | | #include <string.h> |
4 | | |
5 | | #ifdef __cplusplus |
6 | | extern "C" { |
7 | | #endif |
8 | | |
9 | | #include "../cJSON.h" |
10 | | |
11 | | int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size); /* required by C89 */ |
12 | | |
13 | | int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) |
14 | 2.04k | { |
15 | 2.04k | cJSON *json; |
16 | 2.04k | size_t offset = 4; |
17 | 2.04k | unsigned char *copied; |
18 | 2.04k | char *printed_json = NULL; |
19 | 2.04k | int minify, require_termination, formatted, buffered; |
20 | | |
21 | | |
22 | 2.04k | if(size <= offset) return 0; |
23 | 2.04k | if(data[size-1] != '\0') return 0; |
24 | 2.03k | if(data[0] != '1' && data[0] != '0') return 0; |
25 | 2.02k | if(data[1] != '1' && data[1] != '0') return 0; |
26 | 2.00k | if(data[2] != '1' && data[2] != '0') return 0; |
27 | 1.99k | if(data[3] != '1' && data[3] != '0') return 0; |
28 | | |
29 | 1.98k | minify = data[0] == '1' ? 1 : 0; |
30 | 1.98k | require_termination = data[1] == '1' ? 1 : 0; |
31 | 1.98k | formatted = data[2] == '1' ? 1 : 0; |
32 | 1.98k | buffered = data[3] == '1' ? 1 : 0; |
33 | | |
34 | 1.98k | json = cJSON_ParseWithOpts((const char*)data + offset, NULL, require_termination); |
35 | | |
36 | 1.98k | if(json == NULL) return 0; |
37 | | |
38 | 1.04k | if(buffered) |
39 | 507 | { |
40 | 507 | printed_json = cJSON_PrintBuffered(json, 1, formatted); |
41 | 507 | } |
42 | 539 | else |
43 | 539 | { |
44 | | /* unbuffered printing */ |
45 | 539 | if(formatted) |
46 | 279 | { |
47 | 279 | printed_json = cJSON_Print(json); |
48 | 279 | } |
49 | 260 | else |
50 | 260 | { |
51 | 260 | printed_json = cJSON_PrintUnformatted(json); |
52 | 260 | } |
53 | 539 | } |
54 | | |
55 | 1.04k | if(printed_json != NULL) free(printed_json); |
56 | | |
57 | 1.04k | if(minify) |
58 | 852 | { |
59 | 852 | copied = (unsigned char*)malloc(size); |
60 | 852 | if(copied == NULL) return 0; |
61 | | |
62 | 852 | memcpy(copied, data, size); |
63 | | |
64 | 852 | cJSON_Minify((char*)copied + offset); |
65 | | |
66 | 852 | free(copied); |
67 | 852 | } |
68 | | |
69 | 1.04k | cJSON_Delete(json); |
70 | | |
71 | 1.04k | return 0; |
72 | 1.04k | } |
73 | | |
74 | | #ifdef __cplusplus |
75 | | } |
76 | | #endif |
77 | | |