Files
bind9/fuzz/isc_lex_getmastertoken.c
Ondřej Surý ba99bdbf6f Add fuzzing for the isc_lex (isc_lex_gettoken,isc_lex_getmastertoken) API
In this commit, the simple fuzzing tests for the isc_lex_gettoken() and
isc_lex_getmastertoken() functions have been added.

As part of this commit, the initialization has been moved from fuzz.h
constructor/destructor to LLVMFuzzerInitialize() in each fuzz test.  The
main.c of no-fuzzing and AFL modes have been modified to run the
LLVMFuzzerInitialize() at the start of the main() function mimicking
the libfuzzer mode of operation.
2020-07-31 17:28:35 +02:00

63 lines
1.4 KiB
C

/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#include <stddef.h>
#include <stdint.h>
#include <isc/buffer.h>
#include <isc/lex.h>
#include <isc/mem.h>
#include <isc/util.h>
#include "fuzz.h"
int
LLVMFuzzerInitialize(int *argc __attribute__((unused)),
char ***argv __attribute__((unused)));
int
LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
static isc_mem_t *mctx = NULL;
static isc_lex_t *lex = NULL;
int
LLVMFuzzerInitialize(int *argc __attribute__((unused)),
char ***argv __attribute__((unused))) {
isc_result_t result;
isc_mem_create(&mctx);
result = isc_lex_create(mctx, 1024, &lex);
REQUIRE(result == ISC_R_SUCCESS);
return (0);
}
int
LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
isc_buffer_t buf;
isc_result_t result;
isc_buffer_constinit(&buf, data, size);
isc_buffer_add(&buf, size);
isc_buffer_setactive(&buf, size);
CHECK(isc_lex_openbuffer(lex, &buf));
do {
isc_token_t token;
result = isc_lex_gettoken(lex, 0, &token);
} while (result == ISC_R_SUCCESS);
return (0);
}