334 	int ret, len, idx = 0;  in main()  local
413 	if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func,  in main()
417 		mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret);  in main()
429 	ret = mbedtls_x509_crt_parse_file(&cacert, ca_cert_file);  in main()
430 	if (ret < 0) {  in main()
431 		mbedtls_printf(" failed\n  !  mbedtls_x509_crt_parse_file returned -0x%x\n\n", -ret);  in main()
435 	mbedtls_printf(" ok (%d skipped)\n", ret);  in main()
443 	if ((ret = mbedtls_net_connect(&server_fd, target,  in main()
446 		mbedtls_printf(" failed\n  ! mbedtls_net_connect returned %d\n\n", ret);  in main()
458 	if ((ret = mbedtls_ssl_config_defaults(&conf,  in main()
462 		mbedtls_printf(" failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret);  in main()
472 	if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0) {  in main()
473 		mbedtls_printf(" failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret);  in main()
477 	if ((ret = mbedtls_ssl_set_hostname(&ssl, HOSTNAME)) != 0) {  in main()
478 		mbedtls_printf(" failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret);  in main()
497 	do ret = mbedtls_ssl_handshake(&ssl);  in main()
498 	while(ret == MBEDTLS_ERR_SSL_WANT_READ ||  in main()
499 	      ret == MBEDTLS_ERR_SSL_WANT_WRITE);  in main()
501 	if (ret != 0) {  in main()
502 		mbedtls_printf(" failed\n  ! mbedtls_ssl_handshake returned -0x%x\n\n", -ret);  in main()
550 	do ret = mbedtls_ssl_write(&ssl, data[idx].buf, len);  in main()
551 	while(ret == MBEDTLS_ERR_SSL_WANT_READ ||  in main()
552 	      ret == MBEDTLS_ERR_SSL_WANT_WRITE);  in main()
554 	if (ret < 0) {  in main()
555 		mbedtls_printf(" failed\n  ! mbedtls_ssl_write returned %d\n\n", ret);  in main()
559 	mbedtls_printf(" %d bytes written\n", ret);  in main()
569 	do ret = mbedtls_ssl_read(&ssl, buf, len);  in main()
570 	while(ret == MBEDTLS_ERR_SSL_WANT_READ ||  in main()
571 	      ret == MBEDTLS_ERR_SSL_WANT_WRITE);  in main()
573 	if (ret <= 0) {  in main()
574 		switch(ret) {  in main()
583 			ret = 0;  in main()
587 			mbedtls_printf(" mbedtls_ssl_read returned -0x%x\n\n", -ret);  in main()
592 	mbedtls_printf(" %d bytes read\n", ret);  in main()
594 	if (ret != len) {  in main()
596 			       "(%d vs %d)\n", len, ret);  in main()
624 	do ret = mbedtls_ssl_close_notify(&ssl);  in main()
625 	while(ret == MBEDTLS_ERR_SSL_WANT_WRITE);  in main()
626 	ret = 0;  in main()
636 	if (ret != 0) {  in main()
638 		mbedtls_strerror(ret, error_buf, 100);  in main()
639 		mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf);  in main()
657 	if (ret < 0)  in main()
658 		ret = 1;  in main()
660 	return(ret);  in main()