X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e6432f05795ba0eaf1e34bb47b2a7f87a762de29..51923aca853eed7b146216712d26de92dd60ac12:/client/util.c

diff --git a/client/util.c b/client/util.c
index cea9f7d7..056b5676 100644
--- a/client/util.c
+++ b/client/util.c
@@ -108,12 +108,12 @@ void print_hex(const uint8_t * data, const size_t len)
 	printf("\n");
 }
 
-char * sprint_hex(const uint8_t * data, const size_t len) {
+char *sprint_hex(const uint8_t *data, const size_t len) {
 	
 	int maxLen = ( len > 1024/3) ? 1024/3 : len;
 	static char buf[1024];
 	memset(buf, 0x00, 1024);
-	char * tmp = buf;
+	char *tmp = buf;
 	size_t i;
 
 	for (i=0; i < maxLen; ++i, tmp += 3)
@@ -160,6 +160,13 @@ 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
@@ -333,7 +340,28 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
 
 	return 0;
 }
+int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt)
+{
+	int bg, en, temp, i;
+
+	//if (hexcnt % 2)
+	//	return 1;
+	
+	if (param_getptr(line, &bg, &en, paramnum)) return 1;
+
+	*hexcnt = en - bg + 1;
+	if (*hexcnt % 2) //error if not complete hex bytes
+		return 1;
 
+	for(i = 0; i < *hexcnt; i += 2) {
+		if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) )	return 1;
+		
+		sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
+		data[i / 2] = temp & 0xff;
+	}	
+
+	return 0;
+}
 int param_getstr(const char *line, int paramnum, char * str)
 {
 	int bg, en;
@@ -394,7 +422,7 @@ int hextobinstring(char *target, char *source)
 
 // convert binary array of 0x00/0x01 values to hex (safe to do in place as target will always be shorter than source)
 // return number of bits converted
-int binarraytohex(char *target, char *source, int length)
+int binarraytohex(char *target,char *source, int length)
 {
     unsigned char i, x;
     int j = length;
@@ -425,7 +453,7 @@ 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;
 
@@ -437,10 +465,19 @@ 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);
     target += length;
     *(target)= GetParity(source + length / 2, ODD, length / 2);
 }
+
+void xor(unsigned char *dst, unsigned char *src, size_t len) {
+   for( ; len > 0; len--,dst++,src++)
+       *dst ^= *src;
+}
+
+int32_t le24toh (uint8_t data[3]) {
+    return (data[2] << 16) | (data[1] << 8) | data[0];
+}