nfcip-initiator.c

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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 }