- xfr-tsig, const for dname compare and fix warnings in compile.

util/data/dname.c

@@ -97,7 +97,7 @@ dname_valid(uint8_t* dname, size_t maxlen)
 
 /** compare uncompressed, noncanonical, registers are hints for speed */
 int 
-query_dname_compare(register uint8_t* d1, register uint8_t* d2)
+query_dname_compare(const register uint8_t* d1, const register uint8_t* d2)
 {
 	register uint8_t lab1, lab2;
 	log_assert(d1 && d2);

util/data/dname.h

@@ -96,7 +96,7 @@ void pkt_dname_tolower(struct sldns_buffer* pkt, uint8_t* dname);
  * @return: -1, 0, or +1 depending on comparison results.
  * 	Sort order is first difference found. not the canonical ordering.
  */
-int query_dname_compare(uint8_t* d1, uint8_t* d2);
+int query_dname_compare(const uint8_t* d1, const uint8_t* d2);
 
 /**
  * Determine correct, compressed, dname present in packet.

util/tsig.c

@@ -61,7 +61,6 @@ tsig_verify(sldns_buffer* pkt, const uint8_t* name, const uint8_t* alg,
 {
 	size_t   n_rrs;
 	size_t   end_of_message;
-	uint16_t rdlength;
 	uint8_t  mac[1024];
 	uint16_t mac_sz;
 	uint8_t  hmac_result[1024];