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Merge pull request #90 from merlokk/fix_14a_loop

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Fix 14a loop
This commit is contained in:
Oleg Moiseenko 2019-02-05 19:11:46 +02:00 committed by GitHub
commit 324f5a6b04
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 12 deletions
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6
armsrc/iso14443a.c
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@ -2248,7 +2248,7 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, bool send_chaining, void *data, u
return 0; //DATA LINK ERROR
} else{
// S-Block WTX
while((data_bytes[0] & 0xF2) == 0xF2) {
while(len && ((data_bytes[0] & 0xF2) == 0xF2)) {
uint32_t save_iso14a_timeout = iso14a_get_timeout();
// temporarily increase timeout
iso14a_set_timeout( MAX((data_bytes[1] & 0x3f) * save_iso14a_timeout, MAX_ISO14A_TIMEOUT) );
@ -2281,17 +2281,19 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, bool send_chaining, void *data, u
*res = data_bytes[0];
// crc check
if (len >=3 && !check_crc(CRC_14443_A, data_bytes, len)) {
if (len >= 3 && !check_crc(CRC_14443_A, data_bytes, len)) {
return -1;
}
}
if (len) {
// cut frame byte
len -= 1;
// memmove(data_bytes, data_bytes + 1, len);
for (int i = 0; i < len; i++)
data_bytes[i] = data_bytes[i + 1];
}
return len;
}