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Jumps len check fix

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iceman1001 2022-12-09 07:39:36 +01:00
commit ac84e855a9
1 changed files with 3 additions and 2 deletions
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5
armsrc/i2c.c
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@ -714,11 +714,12 @@ bool GetATR(smart_card_atr_t *card_ptr, bool verbose) {
// read bytes from module // read bytes from module
uint16_t len = sizeof(card_ptr->atr); uint16_t len = sizeof(card_ptr->atr);
if (sc_rx_bytes(card_ptr->atr, &len) == false)
return false;
if (len > sizeof(card_ptr->atr)) { if (len > sizeof(card_ptr->atr)) {
len = sizeof(card_ptr->atr); len = sizeof(card_ptr->atr);
} }
if (sc_rx_bytes(card_ptr->atr, &len) == false)
return false;
uint8_t pos_td = 1; uint8_t pos_td = 1;
if ((card_ptr->atr[1] & 0x10) == 0x10) pos_td++; if ((card_ptr->atr[1] & 0x10) == 0x10) pos_td++;