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Add fuzz tests for json_object/point/array apis

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Extends the coverage of fuzz tests executed in OSS-Fuzz.
This commit is contained in:
Simon Resch
2024-11-08 22:20:40 -05:00
parent 565f181f65
commit 839fbe0d63
7 changed files with 190 additions and 0 deletions
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44
fuzz/json_object_fuzzer.cc Normal file
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#include <fuzzer/FuzzedDataProvider.h>
#include "json.h"
#include "json_visit.h"
// Function to test json_c_visit
static int emit_object(json_object *jso, int flags, json_object *parent_jso, const char *jso_key,
size_t *jso_index, void *userarg) {
return JSON_C_VISIT_RETURN_CONTINUE;
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
FuzzedDataProvider fdp(data, size);
json_object *jso = json_tokener_parse(fdp.ConsumeRandomLengthString(20).c_str());
json_object_get_boolean(jso);
json_object_get_double(jso);
json_object_get_int(jso);
json_object_get_int64(jso);
json_object_get_uint64(jso);
json_object_get_string(jso);
json_object_get_string_len(jso);
json_object_get_object(jso);
json_object_get_array(jso);
json_object_get_type(jso);
json_c_visit(jso, 0, emit_object, NULL);
json_object_set_int(jso, fdp.ConsumeIntegral<int>());
json_object_set_int64(jso, fdp.ConsumeIntegral<int64_t>());
json_object_set_uint64(jso, fdp.ConsumeIntegral<uint64_t>());
json_object_set_double(jso, fdp.ConsumeFloatingPoint<double>());
json_object_set_string(jso, fdp.ConsumeRandomLengthString(10).c_str());
json_object_set_boolean(jso, fdp.ConsumeBool());
std::string str = fdp.ConsumeRandomLengthString(10);
json_object_set_string_len(jso, str.c_str(), str.size());
json_object *dst = NULL;
json_object_deep_copy(jso, &dst, json_c_shallow_copy_default);
json_object_put(dst);
json_object_put(jso);
return 0;
}