X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/3e134b4c20a5528b8264cd87d3fdebd0b2df6fd9..ab74872d40cf1f6b91344909e307ae788a3f8497:/client/util.c

diff --git a/client/util.c b/client/util.c
index 4129daaf..b2ac82ae 100644
--- a/client/util.c
+++ b/client/util.c
@@ -221,7 +221,7 @@ void num_to_bytebitsLSBF(uint64_t n, size_t len, uint8_t *dest) {
 // 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){
-	uint8_t buf[64];
+	static uint8_t buf[64];
 	memset(buf, 0x00, 64);
 	uint8_t *tmp = buf;
 	for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){
@@ -229,7 +229,7 @@ uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockS
 			tmp[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)];
 		}
 	}
-	return tmp;
+	return buf;
 }
 
 // takes a uint8_t src array, for len items and reverses the byte order in blocksizes (8,16,32,64), 
@@ -352,8 +352,6 @@ uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base)
 		return strtoull(&line[bg], NULL, base);
 	else
 		return deflt;
-
-	return 0;
 }
 
 int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
@@ -568,3 +566,12 @@ uint32_t reflect(uint32_t v, int b) {
 	}
 	return v;
 }
+
+uint64_t HornerScheme(uint64_t num, uint64_t divider, uint64_t factor) {
+   uint64_t remainder=0, quotient=0, result=0;
+   remainder = num % divider;
+   quotient = num / divider;
+   if(!(quotient == 0 && remainder == 0))
+   result += HornerScheme(quotient, divider, factor) * factor + remainder;
+   return result;
+}
\ No newline at end of file