58     unsigned char buf[2048];  in main()  local
177     memset(buf, 0, sizeof(buf));  in main()
180              mbedtls_dhm_make_params(&dhm, (int) mbedtls_dhm_get_len(&dhm), buf, &n,  in main()
196     if ((ret = mbedtls_sha256(buf, n, hash, 0)) != 0) {  in main()
202     buf[n] = (unsigned char) (rsa_key_len >> 8);  in main()
203     buf[n + 1] = (unsigned char) (rsa_key_len);  in main()
207                                       hash, buf + n + 2)) != 0) {  in main()
217         (ret = mbedtls_net_send(&client_fd, buf, buflen)) != (int) buflen) {  in main()
228     memset(buf, 0, sizeof(buf));  in main()
231     if ((ret = mbedtls_net_recv(&client_fd, buf, n)) != (int) n) {  in main()
236     if ((ret = mbedtls_dhm_read_public(&dhm, buf, n)) != 0) {  in main()
247     if ((ret = mbedtls_dhm_calc_secret(&dhm, buf, sizeof(buf), &n,  in main()
254         mbedtls_printf("%02x", buf[n]);  in main()
268     ret = mbedtls_aes_setkey_enc(&aes, buf, 256);  in main()
272     memcpy(buf, PLAINTEXT, 16);  in main()
273     ret = mbedtls_aes_crypt_ecb(&aes, MBEDTLS_AES_ENCRYPT, buf, buf);  in main()
278     if ((ret = mbedtls_net_send(&client_fd, buf, 16)) != 16) {  in main()