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PN532: Prevent non AlphaNumberic on DATA

This commit is contained in:
andrethomas 2019-01-17 01:22:51 +02:00
parent 12b3ac0e8d
commit 01ecc12f13
1 changed files with 7 additions and 1 deletions
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8
sonoff/xsns_40_pn532_i2c.ino
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@ -406,7 +406,13 @@ void PN532_ScanForTag(void)
uint8_t keyuniversal[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
if (mifareclassic_AuthenticateBlock (uid, uid_len, 1, 1, keyuniversal)) {
if (mifareclassic_ReadDataBlock(1, card_data)) {
memcpy(&card_datas,&card_data,sizeof(card_data)); // Cast block 1 to a string
for (uint8_t i = 0;i < sizeof(card_data);i++) {
if ((isalpha(card_data[i])) || ((isdigit(card_data[i])))) {
card_datas[i] = char(card_data[i]);
} else {
card_datas[i] = '\0';
}
}
}
if (pn532_i2c_function == 1) { // erase block 1 of card
for (uint8_t i = 0;i<16;i++) {