CHG: moved a xor function into util.c

[proxmark3-svn] / client / util.c

diff --git a/client/util.c b/client/util.c
index 391b9b00c7629e6e4239873ee7d8bbdfc9f9d441..30547080b7714b6ac02f1ccd830116186c4f0c4a 100644 (file)
--- a/client/util.c
+++ b/client/util.c
@@ -113,7 +113,7 @@ 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)
@@ -444,3 +444,12 @@ 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];
+}