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Update cmddata.c

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as suggested,  a bitwise bounds check in cmddata.
This commit is contained in:
Iceman 2015-01-30 15:17:07 +01:00
commit 0c5998c051
1 changed files with 7 additions and 3 deletions
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10
client/cmddata.c
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@ -57,9 +57,8 @@ void printDemodBuff()
} }
if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
// equally divided by 16 // ensure equally divided by 16
if ( bitLen % 16 > 0) bitLen &= 0xfff0;
bitLen = (bitLen/16);
for (i = 0; i <= (bitLen-16); i+=16) { for (i = 0; i <= (bitLen-16); i+=16) {
PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
@ -193,6 +192,11 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen)
return; return;
} }
if (bitLen>512) bitLen=512; if (bitLen>512) bitLen=512;
// ensure equally divided by 16
bitLen &= 0xfff0;
for (i = 0; i <= (bitLen-16); i+=16) { for (i = 0; i <= (bitLen-16); i+=16) {
PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
BitStream[i], BitStream[i],