--- /dev/null
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ares.h"
+// Include ares internal file for DNS protocol constants
+#include "nameser.h"
+
+// Entrypoint for Clang's libfuzzer, exercising query creation.
+int LLVMFuzzerTestOneInput(const unsigned char *data,
+ unsigned long size) {
+ // Null terminate the data.
+ char *name = malloc(size + 1);
+ name[size] = '\0';
+ memcpy(name, data, size);
+
+ unsigned char *buf = NULL;
+ int buflen = 0;
+ ares_create_query(name, ns_c_in, ns_t_aaaa, 1234, 0, &buf, &buflen, 1024);
+ free(buf);
+ free(name);
+ return 0;
+}