105 	int ret, len, c;  in main()  local
188 	ret = mbedtls_x509_crt_parse_file(&srvcert, srv_cert_file);  in main()
189 	if (ret != 0) {  in main()
191 		       ret);  in main()
195 	ret =  mbedtls_pk_parse_keyfile(&pkey, srv_key_file, NULL);  in main()
196 	if (ret != 0) {  in main()
198 		       ret);  in main()
210 	if ((ret = mbedtls_net_bind(&listen_fd, NULL, listen_port,  in main()
212 		printf(" failed\n  ! mbedtls_net_bind returned %d\n\n", ret);  in main()
224 	if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func,  in main()
228 		printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret);  in main()
240 	if ((ret = mbedtls_ssl_config_defaults(&conf,  in main()
245 			       "returned %d\n\n", ret);  in main()
259 	if ((ret = mbedtls_ssl_conf_own_cert(&conf, &srvcert, &pkey)) != 0) {  in main()
261 		       "returned %d\n\n", ret);  in main()
265 	if ((ret = mbedtls_ssl_cookie_setup(&cookie_ctx,  in main()
269 		       ret);  in main()
276 	if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0) {  in main()
277 		printf(" failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret);  in main()
288 	if (ret != 0) {  in main()
290 		mbedtls_strerror(ret, error_buf, 100);  in main()
291 		printf("Last error was: %d - %s\n\n", ret, error_buf);  in main()
305 	if ((ret = mbedtls_net_accept(&listen_fd, &client_fd,  in main()
308 		printf(" failed\n  ! mbedtls_net_accept returned %d\n\n", ret);  in main()
313 	if ((ret = mbedtls_ssl_set_client_transport_id(&ssl,  in main()
318 		       "returned -0x%x\n\n", -ret);  in main()
334 	do ret = mbedtls_ssl_handshake(&ssl);  in main()
335 	while(ret == MBEDTLS_ERR_SSL_WANT_READ ||  in main()
336 	      ret == MBEDTLS_ERR_SSL_WANT_WRITE);  in main()
338 	if (ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) {  in main()
340 		ret = 0;  in main()
343 	else if (ret != 0)  in main()
346 		       -ret);  in main()
362 	do ret = mbedtls_ssl_read(&ssl, buf, len);  in main()
363 	while(ret == MBEDTLS_ERR_SSL_WANT_READ ||  in main()
364 	      ret == MBEDTLS_ERR_SSL_WANT_WRITE);  in main()
366 	if (ret <= 0) {  in main()
367 		switch(ret) {  in main()
374 			ret = 0;  in main()
378 			printf(" mbedtls_ssl_read returned -0x%x\n\n", -ret);  in main()
383 	len = ret;  in main()
392 	do ret = mbedtls_ssl_write(&ssl, buf, len);  in main()
393 	while(ret == MBEDTLS_ERR_SSL_WANT_READ ||  in main()
394 	      ret == MBEDTLS_ERR_SSL_WANT_WRITE);  in main()
396 	if (ret < 0) {  in main()
397 		printf(" failed\n  ! mbedtls_ssl_write returned %d\n\n", ret);  in main()
401 	len = ret;  in main()
413 	do ret = mbedtls_ssl_close_notify(&ssl);  in main()
414 	while(ret == MBEDTLS_ERR_SSL_WANT_WRITE);  in main()
415 	ret = 0;  in main()
427 	if (ret != 0) {  in main()
429 		mbedtls_strerror(ret, error_buf, 100);  in main()
430 		printf("Last error was: %d - %s\n\n", ret, error_buf);  in main()
454 	if (ret < 0)  in main()
455 		ret = 1;  in main()
457 	return(ret);  in main()