87     uint32_t rx_len;  in main()  local
148         rx_len = 0;  in main()
160           rx_len = kAtrLength;  in main()
161           printf("Filling card RX buf with fake ATR (%u)\n", rx_len);  in main()
162           memcpy(rx_buf, kAtr, rx_len);  in main()
163           printf("Sending back ATR of length %u\n", rx_len);  in main()
168         if (!rx_len)  in main()
171         rx_len = ese_transceive(&ese, tx_buf, tx_len, rx_buf, sizeof(rx_buf));  in main()
178       if (rx_len > 0) {  in main()
180         printf("Read %d bytes from card\n", rx_len);  in main()
182         for (i = 0; i < rx_len; ++i)  in main()
188       network_rx_len = htons((uint16_t)rx_len);  in main()
195       for (data_read = 0; data_read < rx_len;) {  in main()
197             write(client_fd, rx_buf + data_read, rx_len - data_read);  in main()