52     int ret = 1;  in main()  local
87     if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,  in main()
90         mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret);  in main()
108     if ((ret = mbedtls_mpi_read_file(&N, 16, f)) != 0 ||  in main()
109         (ret = mbedtls_mpi_read_file(&E, 16, f)) != 0 ||  in main()
110         (ret = mbedtls_mpi_read_file(&D, 16, f)) != 0 ||  in main()
111         (ret = mbedtls_mpi_read_file(&P, 16, f)) != 0 ||  in main()
112         (ret = mbedtls_mpi_read_file(&Q, 16, f)) != 0) {  in main()
114                        ret);  in main()
120     if ((ret = mbedtls_rsa_import(&rsa, &N, &P, &Q, &D, &E)) != 0) {  in main()
122                        ret);  in main()
126     if ((ret = mbedtls_rsa_complete(&rsa)) != 0) {  in main()
128                        ret);  in main()
144     if ((ret = mbedtls_mpi_read_file(&dhm_P, 16, f)) != 0 ||  in main()
145         (ret = mbedtls_mpi_read_file(&dhm_G, 16, f)) != 0 ||  in main()
146         (ret = mbedtls_dhm_set_group(&dhm, &dhm_P, &dhm_G) != 0)) {  in main()
160     if ((ret = mbedtls_net_bind(&listen_fd, NULL, SERVER_PORT, MBEDTLS_NET_PROTO_TCP)) != 0) {  in main()
161         mbedtls_printf(" failed\n  ! mbedtls_net_bind returned %d\n\n", ret);  in main()
165     if ((ret = mbedtls_net_accept(&listen_fd, &client_fd,  in main()
167         mbedtls_printf(" failed\n  ! mbedtls_net_accept returned %d\n\n", ret);  in main()
179     if ((ret =  in main()
182         mbedtls_printf(" failed\n  ! mbedtls_dhm_make_params returned %d\n\n", ret);  in main()
196     if ((ret = mbedtls_sha256(buf, n, hash, 0)) != 0) {  in main()
197         mbedtls_printf(" failed\n  ! mbedtls_sha256 returned %d\n\n", ret);  in main()
205     if ((ret = mbedtls_rsa_pkcs1_sign(&rsa, mbedtls_ctr_drbg_random, &ctr_drbg,  in main()
208         mbedtls_printf(" failed\n  ! mbedtls_rsa_pkcs1_sign returned %d\n\n", ret);  in main()
216     if ((ret = mbedtls_net_send(&client_fd, buf2, 2)) != 2 ||  in main()
217         (ret = mbedtls_net_send(&client_fd, buf, buflen)) != (int) buflen) {  in main()
218         mbedtls_printf(" failed\n  ! mbedtls_net_send returned %d\n\n", ret);  in main()
231     if ((ret = mbedtls_net_recv(&client_fd, buf, n)) != (int) n) {  in main()
232         mbedtls_printf(" failed\n  ! mbedtls_net_recv returned %d\n\n", ret);  in main()
236     if ((ret = mbedtls_dhm_read_public(&dhm, buf, n)) != 0) {  in main()
237         mbedtls_printf(" failed\n  ! mbedtls_dhm_read_public returned %d\n\n", ret);  in main()
247     if ((ret = mbedtls_dhm_calc_secret(&dhm, buf, sizeof(buf), &n,  in main()
249         mbedtls_printf(" failed\n  ! mbedtls_dhm_calc_secret returned %d\n\n", ret);  in main()
268     ret = mbedtls_aes_setkey_enc(&aes, buf, 256);  in main()
269     if (ret != 0) {  in main()
273     ret = mbedtls_aes_crypt_ecb(&aes, MBEDTLS_AES_ENCRYPT, buf, buf);  in main()
274     if (ret != 0) {  in main()
278     if ((ret = mbedtls_net_send(&client_fd, buf, 16)) != 16) {  in main()
279         mbedtls_printf(" failed\n  ! mbedtls_net_send returned %d\n\n", ret);  in main()