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71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
/*
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Copyright (c) 2023 Cedalo GmbH
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License 2.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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https://www.eclipse.org/legal/epl-2.0/
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and the Eclipse Distribution License is available at
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http://www.eclipse.org/org/documents/edl-v10.php.
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SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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Contributors:
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Roger Light - initial implementation and documentation.
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*/
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#include <cstdlib>
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#include <cstring>
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#include <cstdint>
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#include <cerrno>
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#include <sys/socket.h>
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#include <unistd.h>
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#include "broker_fuzz.h"
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extern int g_run;
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/*
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* This tests the second packet sent to the broker after the client has already
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* connected, with no authentication.
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*/
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void run_client(struct fuzz_data *fuzz)
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{
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int sock;
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const uint8_t connect_packet[] = {0x10, 0x0D, 0x00, 0x04, 0x4D, 0x51, 0x54, 0x54, 0x04, 0x02, 0x00, 0x0A, 0x00, 0x01, 0x70};
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const uint8_t connack_packet[] = {0x20, 0x02, 0x00, 0x00};
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uint8_t data[20];
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size_t len;
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sock = connect_retrying(fuzz->port);
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if(sock < 0){
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abort();
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}
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/* Do initial connect */
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errno = 0;
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len = send(sock, connect_packet, sizeof(connect_packet), 0);
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if(len < 0){
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abort();
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}
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/* And receive the CONNACK */
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recv_timeout(sock, data, sizeof(connack_packet), 100000);
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if(memcmp(data, connack_packet, sizeof(connack_packet))){
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abort();
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}
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errno = 0;
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len = send(sock, fuzz->data, fuzz->size, 0);
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if(len < fuzz->size){
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abort();
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}
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errno = 0;
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recv_timeout(sock, data, sizeof(data), 100000);
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close(sock);
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g_run = 0;
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}
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