restore original block count logic and add debuggers for block0

utils/nfc-mfclassic.c

@@ -426,7 +426,7 @@ write_card(int write_block_zero)
 
  printf("Writing %d blocks |", uiBlocks + 1);
  // Completely write the card, end to start, but skipping block 0
- for (uiBlock = 0; uiBlock <= uiBlocks; uiBlock++) {
+ for (uiBlock = 4; uiBlock <= uiBlocks; uiBlock++) {
  printf("{%d}",uiBlock);
  // Authenticate everytime we reach the first sector of a new block
  if (is_first_block(uiBlock)) {
@@ -515,6 +515,7 @@ write_card(int write_block_zero)
  if (write_block_zero || magic2 || magic3) {
  for (uiBlock = 0; uiBlock < 4; uiBlock++) {
 
+ printf("-%d-",uiBlock);
  // The first block 0x00 is read only, skip this
  if (uiBlock == 0) {
  //If the card is not magic, we're gonna skip over
@@ -555,6 +556,7 @@ write_card(int write_block_zero)
  memset(mp.mpd.abtData, 0x00, sizeof(mp.mpd.abtData));
  else
  memcpy(mp.mpd.abtData, mtDump.amb[uiBlock].mbd.abtData, sizeof(mp.mpd.abtData));
+ printf("<%d>",uiBlock);
  // do not write a block 0 with incorrect BCC - card will be made invalid!
  if (uiBlock == 0) {
  if ((mp.mpd.abtData[0] ^ mp.mpd.abtData[1] ^ mp.mpd.abtData[2] ^ mp.mpd.abtData[3] ^ mp.mpd.abtData[4]) != 0x00 && !magic2) {