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isc_lex_gettoken.c revision 1.2.4.2 
      1 /*	$NetBSD: isc_lex_gettoken.c,v 1.2.4.2 2024/02/29 12:33:44 martin Exp $	*/
      2 
      3 /*
      4  * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
      5  *
      6  * SPDX-License-Identifier: MPL-2.0
      7  *
      8  * This Source Code Form is subject to the terms of the Mozilla Public
      9  * License, v. 2.0. If a copy of the MPL was not distributed with this
     10  * file, you can obtain one at https://mozilla.org/MPL/2.0/.
     11  *
     12  * See the COPYRIGHT file distributed with this work for additional
     13  * information regarding copyright ownership.
     14  */
     15 
     16 #include <stddef.h>
     17 #include <stdint.h>
     18 
     19 #include <isc/buffer.h>
     20 #include <isc/lex.h>
     21 #include <isc/mem.h>
     22 #include <isc/util.h>
     23 
     24 #include "fuzz.h"
     25 
     26 bool debug = false;
     27 
     28 static isc_mem_t *mctx = NULL;
     29 static isc_lex_t *lex = NULL;
     30 
     31 int
     32 LLVMFuzzerInitialize(int *argc __attribute__((unused)),
     33 		     char ***argv __attribute__((unused))) {
     34 	isc_result_t result;
     35 
     36 	isc_mem_create(&mctx);
     37 
     38 	result = isc_lex_create(mctx, 1024, &lex);
     39 	REQUIRE(result == ISC_R_SUCCESS);
     40 
     41 	return (0);
     42 }
     43 
     44 int
     45 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
     46 	isc_buffer_t buf;
     47 	isc_result_t result;
     48 
     49 	isc_buffer_constinit(&buf, data, size);
     50 	isc_buffer_add(&buf, size);
     51 	isc_buffer_setactive(&buf, size);
     52 
     53 	CHECK(isc_lex_openbuffer(lex, &buf));
     54 
     55 	do {
     56 		isc_token_t token;
     57 		result = isc_lex_gettoken(lex, 0, &token);
     58 	} while (result == ISC_R_SUCCESS);
     59 
     60 	return (0);
     61 }
     62