66     unsigned char buf[2048];  in main()  local
139     memset(buf, 0, sizeof(buf));  in main()
141     if ((ret = mbedtls_net_recv(&server_fd, buf, 2)) != 2) {  in main()
146     n = buflen = (buf[0] << 8) | buf[1];  in main()
147     if (buflen < 1 || buflen > sizeof(buf)) {  in main()
155     memset(buf, 0, sizeof(buf));  in main()
157     if ((ret = mbedtls_net_recv(&server_fd, buf, n)) != (int) n) {  in main()
162     p = buf, end = buf + buflen;  in main()
195     if ((ret = mbedtls_sha256(buf, (int) (p - 2 - buf), hash, 0)) != 0) {  in main()
213     if ((ret = mbedtls_dhm_make_public(&dhm, (int) n, buf, n,  in main()
219     if ((ret = mbedtls_net_send(&server_fd, buf, n)) != (int) n) {  in main()
230     if ((ret = mbedtls_dhm_calc_secret(&dhm, buf, sizeof(buf), &n,  in main()
237         mbedtls_printf("%02x", buf[n]);  in main()
251     ret = mbedtls_aes_setkey_dec(&aes, buf, 256);  in main()
256     memset(buf, 0, sizeof(buf));  in main()
258     if ((ret = mbedtls_net_recv(&server_fd, buf, 16)) != 16) {  in main()
263     ret = mbedtls_aes_crypt_ecb(&aes, MBEDTLS_AES_DECRYPT, buf, buf);  in main()
267     buf[16] = '\0';  in main()
268     mbedtls_printf("\n  . Plaintext is \"%s\"\n\n", (char *) buf);  in main()