49     SSL *ssl = SSL_new(ctx->tls_ctx);  in mcp_tls_backend_init()  local
50     if (ssl == NULL) {  in mcp_tls_backend_init()
54     be->ssl = ssl;  in mcp_tls_backend_init()
62     if (!be->ssl) {  in mcp_tls_shutdown()
70     SSL_shutdown(be->ssl);  in mcp_tls_shutdown()
76     if (!be->ssl) {  in mcp_tls_cleanup()
80     SSL_free(be->ssl);  in mcp_tls_cleanup()
81     be->ssl = NULL;  in mcp_tls_cleanup()
89     SSL_set_fd(be->ssl, mcmc_fd(be->client));  in mcp_tls_connect()
100     SSL_clear(be->ssl);  in mcp_tls_connect()
102     int n = SSL_connect(be->ssl);  in mcp_tls_connect()
110     int err = SSL_get_error(be->ssl, n);  in mcp_tls_connect()
130     if (SSL_is_init_finished(be->ssl)) {  in mcp_tls_handshake()
136     int n = SSL_do_handshake(be->ssl);  in mcp_tls_handshake()
141     int err = SSL_get_error(be->ssl, n);  in mcp_tls_handshake()
164     int n = SSL_write(be->ssl, str, len);  in mcp_tls_send_validate()
176     int n = SSL_read(be->ssl, be->rbuf + be->rbufused, READ_BUFFER_SIZE - be->rbufused);  in mcp_tls_read()
179         int err = SSL_get_error(be->ssl, n);  in mcp_tls_read()
234     int n = SSL_write(be->ssl, et->tls_wbuf, b - et->tls_wbuf);  in mcp_tls_writev()
236         int err = SSL_get_error(be->ssl, n);  in mcp_tls_writev()