* creating, using and closing TLS/SSL connections.
*
* Copyright : Written by and Copyright (c) 2017 Vaclav Svec. FIT CVUT.
- * Copyright (C) 2018-2019 by Fabian Keil <fk@fabiankeil.de>
+ * Copyright (C) 2018-2020 by Fabian Keil <fk@fabiankeil.de>
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* 2 : buf = Pointer to buffer where data will be written
* 3 : max_length = Maximum number of bytes to read
*
- * Returns : Number of bytes read, 0 for EOF, or negative
- * value on error.
+ * Returns : Number of bytes read, 0 for EOF, or -1
+ * on error.
*
*********************************************************************/
extern int ssl_recv_data(mbedtls_ssl_context *ssl, unsigned char *buf, size_t max_length)
{
char err_buf[ERROR_BUF_SIZE];
+ if (ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY)
+ {
+ log_error(LOG_LEVEL_CONNECT,
+ "The peer notified us that the connection is going to be closed");
+ return 0;
+ }
mbedtls_strerror(ret, err_buf, sizeof(err_buf));
log_error(LOG_LEVEL_ERROR,
"Receiving data over TLS/SSL failed: %s", err_buf);
+
+ return -1;
}
return ret;