64     int ret = 1;  in main()  local
98     if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,  in main()
101         mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret);  in main()
119     if ((ret = mbedtls_mpi_read_file(&N, 16, f)) != 0 ||  in main()
120         (ret = mbedtls_mpi_read_file(&E, 16, f)) != 0 ||  in main()
121         (ret = mbedtls_mpi_read_file(&D, 16, f)) != 0 ||  in main()
122         (ret = mbedtls_mpi_read_file(&P, 16, f)) != 0 ||  in main()
123         (ret = mbedtls_mpi_read_file(&Q, 16, f)) != 0) {  in main()
125                        ret);  in main()
131     if ((ret = mbedtls_rsa_import(&rsa, &N, &P, &Q, &D, &E)) != 0) {  in main()
133                        ret);  in main()
137     if ((ret = mbedtls_rsa_complete(&rsa)) != 0) {  in main()
139                        ret);  in main()
170     if ((ret = mbedtls_net_bind(&listen_fd, NULL, SERVER_PORT, MBEDTLS_NET_PROTO_TCP)) != 0) {  in main()
171         mbedtls_printf(" failed\n  ! mbedtls_net_bind returned %d\n\n", ret);  in main()
175     if ((ret = mbedtls_net_accept(&listen_fd, &client_fd,  in main()
177         mbedtls_printf(" failed\n  ! mbedtls_net_accept returned %d\n\n", ret);  in main()
189     if ((ret =  in main()
192         mbedtls_printf(" failed\n  ! mbedtls_dhm_make_params returned %d\n\n", ret);  in main()
199     if ((ret = mbedtls_sha1(buf, n, hash)) != 0) {  in main()
200         mbedtls_printf(" failed\n  ! mbedtls_sha1 returned %d\n\n", ret);  in main()
207     if ((ret = mbedtls_rsa_pkcs1_sign(&rsa, NULL, NULL, MBEDTLS_MD_SHA256,  in main()
209         mbedtls_printf(" failed\n  ! mbedtls_rsa_pkcs1_sign returned %d\n\n", ret);  in main()
217     if ((ret = mbedtls_net_send(&client_fd, buf2, 2)) != 2 ||  in main()
218         (ret = mbedtls_net_send(&client_fd, buf, buflen)) != (int) buflen) {  in main()
219         mbedtls_printf(" failed\n  ! mbedtls_net_send returned %d\n\n", ret);  in main()
232     if ((ret = mbedtls_net_recv(&client_fd, buf, n)) != (int) n) {  in main()
233         mbedtls_printf(" failed\n  ! mbedtls_net_recv returned %d\n\n", ret);  in main()
237     if ((ret = mbedtls_dhm_read_public(&dhm, buf, n)) != 0) {  in main()
238         mbedtls_printf(" failed\n  ! mbedtls_dhm_read_public returned %d\n\n", ret);  in main()
248     if ((ret = mbedtls_dhm_calc_secret(&dhm, buf, sizeof(buf), &n,  in main()
250         mbedtls_printf(" failed\n  ! mbedtls_dhm_calc_secret returned %d\n\n", ret);  in main()
269     ret = mbedtls_aes_setkey_enc(&aes, buf, 256);  in main()
270     if (ret != 0) {  in main()
274     ret = mbedtls_aes_crypt_ecb(&aes, MBEDTLS_AES_ENCRYPT, buf, buf);  in main()
275     if (ret != 0) {  in main()
279     if ((ret = mbedtls_net_send(&client_fd, buf, 16)) != 16) {  in main()
280         mbedtls_printf(" failed\n  ! mbedtls_net_send returned %d\n\n", ret);  in main()