crewID/libnfc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

nfc-emulate-ndef: minor clean up, improve error debugging.

Browse source
This commit is contained in:
Romuald Conty 2010-09-29 15:26:17 +00:00
parent 4d880e6ce8
commit 3cd0860203
1 changed files with 15 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
examples/nfc-emulate-ndef.c
View file

@ -1,7 +1,7 @@
/*- /*-
* Public platform independent Near Field Communication (NFC) library * Public platform independent Near Field Communication (NFC) library
* *
* Copyright (C) 2009, Roel Verdult * Copyright (C) 2010, Roel Verdult
* *
* This program is free software: you can redistribute it and/or modify it * This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the * under the terms of the GNU Lesser General Public License as published by the
@ -18,8 +18,8 @@
*/ */
/** /**
* @file nfc-emulate.c * @file nfc-emulate-ndef.c
* @brief * @brief Emulate a NFC Forum Tag Type 4 with a NDEF message
*/ */
#ifdef HAVE_CONFIG_H #ifdef HAVE_CONFIG_H
@ -57,12 +57,16 @@ transmit_bytes (const byte_t * pbtTx, const size_t szTxLen)
// Transmit the command bytes // Transmit the command bytes
pn53x_set_parameters(pnd,0); pn53x_set_parameters(pnd,0);
if (!nfc_target_send_bytes(pnd, pbtTx, szTxLen)) if (!nfc_target_send_bytes(pnd, pbtTx, szTxLen)) {
nfc_perror (pnd, "nfc_target_send_bytes");
return false; return false;
}
pn53x_set_parameters(pnd,SYMBOL_PARAM_fISO14443_4_PICC); pn53x_set_parameters(pnd,SYMBOL_PARAM_fISO14443_4_PICC);
if (!pn53x_target_receive_bytes(pnd,abtRx,&szRxLen)) if (!pn53x_target_receive_bytes(pnd,abtRx,&szRxLen)) {
nfc_perror (pnd, "pn53x_target_receive_bytes");
return false; return false;
}
// Show received answer // Show received answer
if (!quiet_output) { if (!quiet_output) {
@ -80,15 +84,16 @@ main (int argc, char *argv[])
pnd = nfc_connect (NULL); pnd = nfc_connect (NULL);
if (pnd == NULL) { if (pnd == NULL) {
printf ("Error connecting NFC reader\n"); ERR("Unable to connect to NFC device");
return 1; return EXIT_FAILURE;
} }
printf ("[+] Connected to NFC reader: %s\n", pnd->acName); printf ("[+] Connected to NFC device: %s\n", pnd->acName);
printf ("[+] Emulating NDEF tag now, please touch it with a second NFC device\n"); printf ("[+] Emulating NDEF tag now, please touch it with a second NFC device\n");
if (!nfc_target_init (pnd, NTM_PICC, abtRx, &szRxLen)) { if (!nfc_target_init (pnd, NTM_PICC, abtRx, &szRxLen)) {
printf ("Error: Could not come out of auto-emulation, no command was received\n"); nfc_perror (pnd, "nfc_target_init");
return 1; ERR("Could not come out of auto-emulation, no command was received");
return EXIT_FAILURE;
} }
transmit_bytes("\x0a\x00\x6a\x87",4); transmit_bytes("\x0a\x00\x6a\x87",4);