68     int ret, len;  in main()  local
100         ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;  in main()
115     if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,  in main()
118         mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret);  in main()
135     ret = mbedtls_x509_crt_parse(&srvcert, (const unsigned char *) mbedtls_test_srv_crt,  in main()
137     if (ret != 0) {  in main()
138         mbedtls_printf(" failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret);  in main()
142     ret = mbedtls_x509_crt_parse(&srvcert, (const unsigned char *) mbedtls_test_cas_pem,  in main()
144     if (ret != 0) {  in main()
145         mbedtls_printf(" failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret);  in main()
149     ret =  mbedtls_pk_parse_key(&pkey, (const unsigned char *) mbedtls_test_srv_key,  in main()
152     if (ret != 0) {  in main()
153         mbedtls_printf(" failed\n  !  mbedtls_pk_parse_key returned %d\n\n", ret);  in main()
165     if ((ret = mbedtls_net_bind(&listen_fd, NULL, "4433", MBEDTLS_NET_PROTO_TCP)) != 0) {  in main()
166         mbedtls_printf(" failed\n  ! mbedtls_net_bind returned %d\n\n", ret);  in main()
178     if ((ret = mbedtls_ssl_config_defaults(&conf,  in main()
182         mbedtls_printf(" failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret);  in main()
196     if ((ret = mbedtls_ssl_conf_own_cert(&conf, &srvcert, &pkey)) != 0) {  in main()
197         mbedtls_printf(" failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret);  in main()
201     if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0) {  in main()
202         mbedtls_printf(" failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret);  in main()
210     if (ret != 0) {  in main()
212         mbedtls_strerror(ret, error_buf, 100);  in main()
213         mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf);  in main()
227     if ((ret = mbedtls_net_accept(&listen_fd, &client_fd,  in main()
229         mbedtls_printf(" failed\n  ! mbedtls_net_accept returned %d\n\n", ret);  in main()
243     while ((ret = mbedtls_ssl_handshake(&ssl)) != 0) {  in main()
244         if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) {  in main()
245             mbedtls_printf(" failed\n  ! mbedtls_ssl_handshake returned %d\n\n", ret);  in main()
261         ret = mbedtls_ssl_read(&ssl, buf, len);  in main()
263         if (ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE) {  in main()
267         if (ret <= 0) {  in main()
268             switch (ret) {  in main()
278                     mbedtls_printf(" mbedtls_ssl_read returned -0x%x\n", (unsigned int) -ret);  in main()
285         len = ret;  in main()
288         if (ret > 0) {  in main()
302     while ((ret = mbedtls_ssl_write(&ssl, buf, len)) <= 0) {  in main()
303         if (ret == MBEDTLS_ERR_NET_CONN_RESET) {  in main()
308         if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) {  in main()
309             mbedtls_printf(" failed\n  ! mbedtls_ssl_write returned %d\n\n", ret);  in main()
314     len = ret;  in main()
319     while ((ret = mbedtls_ssl_close_notify(&ssl)) < 0) {  in main()
320         if (ret != MBEDTLS_ERR_SSL_WANT_READ &&  in main()
321             ret != MBEDTLS_ERR_SSL_WANT_WRITE) {  in main()
322             mbedtls_printf(" failed\n  ! mbedtls_ssl_close_notify returned %d\n\n", ret);  in main()
329     ret = 0;  in main()
335     if (ret != 0) {  in main()
337         mbedtls_strerror(ret, error_buf, 100);  in main()
338         mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf);  in main()
357     mbedtls_exit(ret);  in main()