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45 lines
1.4 KiB
45 lines
1.4 KiB
/*
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* Copyright 2018 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This fuzzer exercises the SNMP PDU parsing code, including ASN.1.
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*/
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#include <net-snmp/net-snmp-config.h>
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#include <net-snmp/net-snmp-includes.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdlib.h>
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int LLVMFuzzerInitialize(int *argc, char ***argv) {
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if (getenv("NETSNMP_DEBUGGING") != NULL) {
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/*
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* Turn on all debugging, to help understand what
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* bits of the parser are running.
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*/
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snmp_enable_stderrlog();
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snmp_set_do_debugging(1);
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debug_register_tokens("");
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}
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return 0;
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}
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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size_t bytes_remaining = size;
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netsnmp_pdu *pdu = SNMP_MALLOC_TYPEDEF(netsnmp_pdu);
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snmp_pdu_parse(pdu, (unsigned char *)data, &bytes_remaining);
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snmp_free_pdu(pdu);
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return 0;
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}
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