wolfssl-examples/can-bus/server.c

64 lines
1.6 KiB
C

/* server.c
*
* Copyright (C) 2021 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "common.h"
#define RECV_MSG_LEN 64
extern volatile int keep_running;
int main(int argc, char *argv[])
{
WOLFSSL_CTX *ctx = NULL;
WOLFSSL_METHOD* method = NULL;
WOLFSSL* ssl = NULL;
int ret;
if (argc != 2) {
printf("Usage: ./server <CAN interface>\n");
return -1;
}
ret = setup_connection(argv[1], SERVER_ID, CLIENT_ID);
if (ret) {
return ret;
}
ret = setup_ssl(SERVICE_TYPE_SERVER, &ctx, &method, &ssl);
if (ret) {
return ret;
}
while(keep_running) {
int input;
char reply[RECV_MSG_LEN];
memset(reply, 0, RECV_MSG_LEN);
input = wolfSSL_read(ssl, reply, RECV_MSG_LEN);
if (input > 0) {
printf("Got message: %s\n", reply);
}
}
close_ssl(ctx, ssl);
return 0;
}