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nfc-anticol: fix bug in long UID display, and some more details

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This commit is contained in:
Philippe Teuwen 2010-10-20 15:23:09 +00:00
parent 72d7b66d2b
commit 0abdf67b8b
1 changed files with 19 additions and 11 deletions
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30
examples/nfc-anticol.c
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@ -46,6 +46,8 @@ static byte_t abtRx[MAX_FRAME_LEN];
static size_t szRxBits;
static size_t szRx;
static byte_t abtUid[10];
static byte_t abtAtqa[2];
static byte_t abtSak;
static size_t szUidLen = 4;
static nfc_device_t *pnd;
@ -63,7 +65,7 @@ transmit_bits (const byte_t * pbtTx, const size_t szTxBits)
{
// Show transmitted command
if (!quiet_output) {
printf ("Sent bits: ");
printf ("Sent bits: ");
print_hex_bits (pbtTx, szTxBits);
}
// Transmit the bit frame command, we don't use the arbitrary parity feature
@ -85,7 +87,7 @@ transmit_bytes (const byte_t * pbtTx, const size_t szTx)
{
// Show transmitted command
if (!quiet_output) {
printf ("Sent bits: ");
printf ("Sent bits: ");
print_hex (pbtTx, szTx);
}
// Transmit the command bytes
@ -187,19 +189,23 @@ main (int argc, char *argv[])
nfc_disconnect (pnd);
return 1;
}
memcpy (abtAtqa, abtRx, 2);
// Anti-collision
transmit_bytes (abtSelectAll, 2);
// Save the UID
memcpy (abtUid, abtRx, 4);
memcpy (abtSelectTag + 2, abtRx, 5);
append_iso14443a_crc (abtSelectTag, 7);
transmit_bytes (abtSelectTag, 9);
// Test if we are dealing with a 4 bytes uid
if (abtUid[0] != 0x88) {
if (abtRx[0] != 0x88) {
// Save the UID
memcpy (abtUid, abtRx, 4);
szUidLen = 4;
} else {
// Save the first 3 bytes of UID
memcpy (abtUid, abtRx+1, 3);
transmit_bytes (abtSelectTag, 9);
// We have to do the anti-collision for cascade level 2
abtSelectAll[0] = 0x95;
abtSelectTag[0] = 0x95;
@ -207,13 +213,14 @@ main (int argc, char *argv[])
// Anti-collision
transmit_bytes (abtSelectAll, 2);
// Save the UID
memcpy (abtUid + 4, abtRx, 4);
// Save the second part of UID
memcpy (abtUid + 3, abtRx, 4);
memcpy (abtSelectTag + 2, abtRx, 5);
append_iso14443a_crc (abtSelectTag, 7);
transmit_bytes (abtSelectTag, 9);
szUidLen = 7;
}
transmit_bytes (abtSelectTag, 9);
abtSak = abtRx[0];
// Request ATS, this only applies to tags that support ISO 14443A-4
if (abtRx[0] & SAK_FLAG_ATS_SUPPORTED)
@ -223,10 +230,11 @@ main (int argc, char *argv[])
transmit_bytes (abtHalt, 4);
printf ("\nFound tag with UID: ");
printf ("%02x%02x%02x%02x", abtUid[0], abtUid[1], abtUid[2], abtUid[3]);
if (szUidLen == 7) {
printf ("%02x%02x%02x", abtUid[6], abtUid[5], abtUid[4]);
printf ("%02x%02x%02x", abtUid[4], abtUid[5], abtUid[6]);
}
printf ("%02x%02x%02x%02x\n", abtUid[3], abtUid[2], abtUid[1], abtUid[0]);
printf(" ATQA: %02x%02x SAK: %02x\n", abtAtqa[1], abtAtqa[0], abtSak);
nfc_disconnect (pnd);
return 0;