X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/3bc7b13d237109c9dca948326315c1476f78c415..0a886a1d1bbe91af3e9e0a6a190a1af026faa589:/client/util.c?ds=sidebyside

diff --git a/client/util.c b/client/util.c
index 79744d1e..860193e7 100644
--- a/client/util.c
+++ b/client/util.c
@@ -159,6 +159,13 @@ uint64_t bytes_to_num(uint8_t* src, size_t len)
 	return num;
 }
 
+void num_to_bytebits(uint64_t	n, size_t len, uint8_t *dest) {
+	while (len--) {
+		dest[len] = n & 1;
+		n >>= 1;
+	}
+}
+
 // aa,bb,cc,dd,ee,ff,gg,hh, ii,jj,kk,ll,mm,nn,oo,pp
 // to
 // hh,gg,ff,ee,dd,cc,bb,aa, pp,oo,nn,mm,ll,kk,jj,ii
@@ -445,7 +452,7 @@ void binarraytobinstring(char *target, char *source,  int length)
 }
 
 // return parity bit required to match type
-uint8_t GetParity( char *bits, uint8_t type, int length)
+uint8_t GetParity( uint8_t *bits, uint8_t type, int length)
 {
     int x;
 
@@ -457,7 +464,7 @@ uint8_t GetParity( char *bits, uint8_t type, int length)
 }
 
 // add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half
-void wiegand_add_parity(char *target, char *source, char length)
+void wiegand_add_parity(uint8_t *target, uint8_t *source, uint8_t length)
 {
     *(target++)= GetParity(source, EVEN, length / 2);
     memcpy(target, source, length);
@@ -474,17 +481,25 @@ int32_t le24toh (uint8_t data[3]) {
     return (data[2] << 16) | (data[1] << 8) | data[0];
 }
 
-
 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits) {
+
+	if (len > 32) return 0;
 	
 	int i = start;
 	int j = len-1;
-
-	if (len > 32) return 0;
-
 	uint32_t tmp = 0;
+
 	for (; j >= 0; --j, ++i)
 		tmp	|= bits[i] << j;
 
 	return tmp;
 }
+
+// RotateLeft - Ultralight, Desfire
+void rol(uint8_t *data, const size_t len){
+    uint8_t first = data[0];
+    for (size_t i = 0; i < len-1; i++) {
+        data[i] = data[i+1];
+    }
+    data[len-1] = first;
+}
\ No newline at end of file