libnfc 1.3.9
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00001 /*- 00002 * Public platform independent Near Field Communication (NFC) library 00003 * 00004 * Copyright (C) 2009, Roel Verdult 00005 * 00006 * This program is free software: you can redistribute it and/or modify it 00007 * under the terms of the GNU Lesser General Public License as published by the 00008 * Free Software Foundation, either version 3 of the License, or (at your 00009 * option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, but WITHOUT 00012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00013 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 00014 * more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public License 00017 * along with this program. If not, see <http://www.gnu.org/licenses/> 00018 */ 00019 00025 #ifdef HAVE_CONFIG_H 00026 # include "config.h" 00027 #endif // HAVE_CONFIG_H 00028 00029 #include <err.h> 00030 #include <stdio.h> 00031 #include <string.h> 00032 #include <nfc/nfc.h> 00033 00034 #define MAX_FRAME_LEN 264 00035 00036 int 00037 main (int argc, const char *argv[]) 00038 { 00039 nfc_device_t *pnd; 00040 nfc_target_info_t ti; 00041 byte_t abtRecv[MAX_FRAME_LEN]; 00042 size_t szRecvBits; 00043 byte_t send[] = "Hello World!"; 00044 00045 if (argc > 1) { 00046 errx (1, "usage: %s", argv[0]); 00047 } 00048 00049 pnd = nfc_connect (NULL); 00050 if (!pnd || !nfc_initiator_init (pnd) 00051 || !nfc_initiator_select_dep_target (pnd, NM_PASSIVE_DEP, NULL, 0, NULL, 0, NULL, 0, &ti)) { 00052 printf ("unable to connect, initialize, or select the target\n"); 00053 return 1; 00054 } 00055 00056 printf ("Sending : %s\n", send); 00057 if (!nfc_initiator_transceive_bytes (pnd, send, strlen ((char *) send), abtRecv, &szRecvBits)) { 00058 printf ("unable to send data\n"); 00059 return 1; 00060 } 00061 00062 abtRecv[szRecvBits] = 0; 00063 printf ("Received: %s\n", abtRecv); 00064 00065 nfc_initiator_deselect_target (pnd); 00066 nfc_disconnect (pnd); 00067 return 0; 00068 }