47 lines
980 B
C++
47 lines
980 B
C++
|
#include <stdint.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
|
||
|
|
#include "jansson.h"
|
||
|
|
|
||
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
|
||
|
|
{
|
||
|
|
json_error_t error;
|
||
|
|
|
||
|
|
if (size < sizeof(size_t) + sizeof(size_t))
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Use the first sizeof(size_t) bytes as load flags.
|
||
|
|
size_t load_flags = *(const size_t*)data;
|
||
|
|
data += sizeof(size_t);
|
||
|
|
size -= sizeof(size_t);
|
||
|
|
|
||
|
|
// Use the next sizeof(size_t) bytes as dump flags.
|
||
|
|
size_t dump_flags = *(const size_t*)data;
|
||
|
|
data += sizeof(size_t);
|
||
|
|
size -= sizeof(size_t);
|
||
|
|
|
||
|
|
// Attempt to load the remainder of the data with the given load flags.
|
||
|
|
const char* text = reinterpret_cast<const char *>(data);
|
||
|
|
json_t* jobj = json_loadb(text, size, load_flags, &error);
|
||
|
|
|
||
|
|
if (jobj == NULL)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Attempt to dump the loaded json object with the given dump flags.
|
||
|
|
char* out = json_dumps(jobj, dump_flags);
|
||
|
|
if (out)
|
||
|
|
{
|
||
|
|
free(out);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (jobj)
|
||
|
|
{
|
||
|
|
json_decref(jobj);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|