X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/0014cb46da1bb7e0dfaa1d2cc8a291c6ab4ac1b3..14006804dd8e68db2a877e0ee588f10a1b178caf:/armsrc/mifareutil.c

diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index c5843fd7..085531f4 100644
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -1,5 +1,5 @@
 //-----------------------------------------------------------------------------
-// Merlok, May 2011
+// Merlok, May 2011, 2012
 // Many authors, whom made it possible
 //
 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
@@ -311,7 +311,7 @@ int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
 	// Mifare HALT
 	uint8_t* receivedAnswer = mifare_get_bigbufptr();
 
-	len = mifare_sendcmd_short(pcs, 1, 0x50, 0x00, receivedAnswer);
+	len = mifare_sendcmd_short(pcs, pcs == NULL ? 0:1, 0x50, 0x00, receivedAnswer);
 	if (len != 0) {
 		if (MF_DBGLEVEL >= 1)	Dbprintf("halt error. response len: %x", len);  
 		return 1;
@@ -394,18 +394,18 @@ uint64_t emlGetKey(int sectorNum, int keyType) {
 }
 
 void emlClearMem(void) {
-	int i;
+	int b;
 	
 	const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-	const uint8_t empty[] =   {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 	const uint8_t uid[]   =   {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};
-	// fill sectors data
-	for(i = 0; i < 16; i++) {
-		emlSetMem((uint8_t *)empty,   i * 4 + 0, 1);
-		emlSetMem((uint8_t *)empty,   i * 4 + 1, 1);
-		emlSetMem((uint8_t *)empty,   i * 4 + 2, 1);
-		emlSetMem((uint8_t *)trailer, i * 4 + 3, 1);
-	}
+	uint8_t* emCARD = eml_get_bigbufptr_cardmem();
+	
+	memset(emCARD, 0, CARD_MEMORY_LEN);
+	
+	// fill sectors trailer data
+	for(b = 3; b < 256; b<127?(b+=4):(b+=16)) {
+		emlSetMem((uint8_t *)trailer, b , 1);
+	}	
 
 	// uid
 	emlSetMem((uint8_t *)uid, 0, 1);