libnfc
1.4.2
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00001 /*- 00002 * Public platform independent Near Field Communication (NFC) library examples 00003 * 00004 * Copyright (C) 2009, Roel Verdult 00005 * Copyright (C) 2010, Romuald Conty 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions are met: 00009 * 1) Redistributions of source code must retain the above copyright notice, 00010 * this list of conditions and the following disclaimer. 00011 * 2 )Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * 00015 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00016 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00017 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00018 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 00019 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00020 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00021 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00022 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00023 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00024 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00025 * POSSIBILITY OF SUCH DAMAGE. 00026 * 00027 * Note that this license only applies on the examples, NFC library itself is under LGPL 00028 * 00029 */ 00030 00036 #ifdef HAVE_CONFIG_H 00037 # include "config.h" 00038 #endif // HAVE_CONFIG_H 00039 00040 #include <stdio.h> 00041 #include <stdlib.h> 00042 #include <string.h> 00043 00044 #include <nfc/nfc.h> 00045 00046 #include "nfc-utils.h" 00047 00048 #define MAX_FRAME_LEN 264 00049 00050 int 00051 main (int argc, const char *argv[]) 00052 { 00053 nfc_device_t *pnd; 00054 nfc_target_t nt; 00055 byte_t abtRx[MAX_FRAME_LEN]; 00056 size_t szRx; 00057 byte_t abtTx[] = "Hello World!"; 00058 00059 if (argc > 1) { 00060 printf ("Usage: %s\n", argv[0]); 00061 return EXIT_FAILURE; 00062 } 00063 00064 pnd = nfc_connect (NULL); 00065 if (!pnd) { 00066 printf("Unable to connect to NFC device.\n"); 00067 return EXIT_FAILURE; 00068 } 00069 printf ("Connected to NFC device: %s\n", pnd->acName); 00070 00071 if (!nfc_initiator_init (pnd)) { 00072 nfc_perror(pnd, "nfc_initiator_init"); 00073 return EXIT_FAILURE; 00074 } 00075 00076 if(!nfc_initiator_select_dep_target (pnd, NDM_PASSIVE, NBR_212, NULL, &nt)) { 00077 nfc_perror(pnd, "nfc_initiator_select_dep_target"); 00078 return EXIT_FAILURE; 00079 } 00080 print_nfc_target (nt, false); 00081 00082 printf ("Sending: %s\n", abtTx); 00083 if (!nfc_initiator_transceive_bytes (pnd, abtTx, sizeof(abtTx), abtRx, &szRx)) { 00084 nfc_perror(pnd, "nfc_initiator_transceive_bytes"); 00085 return EXIT_FAILURE; 00086 } 00087 00088 abtRx[szRx] = 0; 00089 printf ("Received: %s\n", abtRx); 00090 00091 nfc_initiator_deselect_target (pnd); 00092 nfc_disconnect (pnd); 00093 return EXIT_SUCCESS; 00094 }