Made some function parameters const.

lib/cookies/helper.c

@@ -164,7 +164,7 @@ int kr_request_put_cookie(const struct kr_cookie_comp *clnt_comp,
 
 int kr_answer_write_cookie(const struct knot_sc_private *srvr_data,
                            const uint8_t *cc, uint16_t cc_len,
-                           struct kr_nonce_input *nonce,
+                           const struct kr_nonce_input *nonce,
                            const struct knot_sc_alg *alg,
                            knot_pkt_t *pkt)
 {

lib/cookies/helper.h

@@ -55,7 +55,7 @@ int kr_request_put_cookie(const struct kr_cookie_comp *clnt_comp,
 KR_EXPORT
 int kr_answer_write_cookie(const struct knot_sc_private *srvr_data,
                            const uint8_t *cc, uint16_t cc_len,
-                           struct kr_nonce_input *nonce,
+                           const struct kr_nonce_input *nonce,
                            const struct knot_sc_alg *alg,
                            knot_pkt_t *pkt);
 

lib/cookies/nonce.c

@@ -20,7 +20,7 @@
 #include "lib/cookies/nonce.h"
 
 uint16_t kr_nonce_write_wire(uint8_t *buf, uint16_t buf_len,
-                             struct kr_nonce_input *input)
+                             const struct kr_nonce_input *input)
 {
 	if (!buf || buf_len < KR_NONCE_LEN || !input) {
 		return 0;

lib/cookies/nonce.h

@@ -40,4 +40,4 @@ struct kr_nonce_input {
  */
 KR_EXPORT
 uint16_t kr_nonce_write_wire(uint8_t *buf, uint16_t buf_len,
-                             struct kr_nonce_input *input);
+                             const struct kr_nonce_input *input);