X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/ae6ead3dc84acd074be24c0da5efd94ea7a0b225..4db2af08cdd040abc9388e95033257bfe878a044:/client/util.c

diff --git a/client/util.c b/client/util.c
index b8d5c316..79744d1e 100644
--- a/client/util.c
+++ b/client/util.c
@@ -20,7 +20,6 @@ int ukbhit(void)
   int error;
   static struct termios Otty, Ntty;
 
-
   tcgetattr( 0, &Otty);
   Ntty = Otty;
 
@@ -108,32 +107,39 @@ 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;
 	size_t i;
 
 	for (i=0; i < maxLen; ++i, tmp += 3)
-		sprintf(tmp, "%02x ", data[i]);
+		sprintf(tmp, "%02X ", data[i]);
 
 	return buf;
 }
 
-char * sprint_bin(const uint8_t * data, const size_t len) {
+char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) {
 	
-	int maxLen = ( len > 1024) ? 1024 : len;
+	int maxLen = ( len > 1020) ? 1020 : len;
 	static char buf[1024];
-	char * tmp = buf;
-	size_t i;
+	memset(buf, 0x00, 1024);
+	char *tmp = buf;
 
-	for (i=0; i < maxLen; ++i, ++tmp)
-		sprintf(tmp, "%u", data[i]);
+	for (size_t i=0; i < maxLen; ++i){
+		sprintf(tmp++, "%u", data[i]);
+		if (breaks > 0 && !((i+1) % breaks))
+			sprintf(tmp++, "%s","\n");
+	}
 
 	return buf;
 }
 
+char *sprint_bin(const uint8_t *data, const size_t len) {
+	return sprint_bin_break(data, len, 0);
+}
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 {
 	while (len--) {
@@ -153,6 +159,22 @@ uint64_t bytes_to_num(uint8_t* src, size_t len)
 	return num;
 }
 
+// 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
+// up to 64 bytes or 512 bits
+uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize){
+	static uint8_t buf[64];
+	memset(buf, 0x00, 64);
+	uint8_t *tmp = buf;
+	for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){
+		for (size_t i = 0; i < blockSize; i++){
+			tmp[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)];
+		}
+	}
+	return tmp;
+}
+
 //assumes little endian
 char * printBits(size_t const size, void const * const ptr)
 {
@@ -213,6 +235,7 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum)
 	return 0;
 }
 
+
 char param_getchar(const char *line, int paramnum)
 {
 	int bg, en;
@@ -224,7 +247,36 @@ char param_getchar(const char *line, int paramnum)
 
 uint8_t param_get8(const char *line, int paramnum)
 {
-	return param_get8ex(line, paramnum, 10, 0);
+	return param_get8ex(line, paramnum, 0, 10);
+}
+
+/**
+ * @brief Reads a decimal integer (actually, 0-254, not 255)
+ * @param line
+ * @param paramnum
+ * @return -1 if error
+ */
+uint8_t param_getdec(const char *line, int paramnum, uint8_t *destination)
+{
+	uint8_t val =  param_get8ex(line, paramnum, 255, 10);
+	if( (int8_t) val == -1) return 1;
+	(*destination) = val;
+	return 0;
+}
+/**
+ * @brief Checks if param is decimal
+ * @param line
+ * @param paramnum
+ * @return
+ */
+uint8_t param_isdec(const char *line, int paramnum)
+{
+	int bg, en;
+	//TODO, check more thorougly
+	if (!param_getptr(line, &bg, &en, paramnum)) return 1;
+		//		return strtoul(&line[bg], NULL, 10) & 0xff;
+
+	return 0;
 }
 
 uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base)
@@ -280,7 +332,28 @@ 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;
@@ -391,3 +464,27 @@ void wiegand_add_parity(char *target, char *source, char 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];
+}
+
+
+uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits) {
+	
+	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;
+}