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
|
#include "maxminddb-compat-util.h"
#include "maxminddb.h"
#include <unistd.h>
#define kMinInputLength 2
#define kMaxInputLength 4048
extern int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
int status;
FILE *fp;
MMDB_s mmdb;
char filename[256];
if (size < kMinInputLength || size > kMaxInputLength)
return 0;
sprintf(filename, "/tmp/libfuzzer.%d", getpid());
fp = fopen(filename, "wb");
if (!fp)
return 0;
fwrite(data, size, sizeof(uint8_t), fp);
fclose(fp);
status = MMDB_open(filename, MMDB_MODE_MMAP, &mmdb);
if (status == MMDB_SUCCESS)
MMDB_close(&mmdb);
unlink(filename);
return 0;
}
|
