1 files changed, 22 insertions, 21 deletions

diff --git a/toxcore/assoc.c b/toxcore/assoc.c
index 736f246e..4bacde0e 100644
--- a/toxcore/assoc.c
+++ b/toxcore/assoc.c
@@ -103,7 +103,7 @@ struct Assoc {
 
 /* the complete distance would be CLIENT_ID_SIZE long...
  * returns DISTANCE_INDEX_DISTANCE_BITS valid bits */
-static uint64_t id_distance(Assoc *assoc, void *callback_data, uint8_t *id_ref, uint8_t *id_test)
+static uint64_t id_distance(const Assoc *assoc, void *callback_data, const uint8_t *id_ref, const uint8_t *id_test)
 {
     /* with BIG_ENDIAN, this would be a one-liner... */
     uint64_t retval = 0;
@@ -196,7 +196,7 @@ static void dist_index_bubble(Assoc *assoc, uint64_t *dist_list, size_t first, s
  *
  * Result is NOT MAPPED to CANDIDATES_TO_KEEP range, i.e. map before using
  * it for list access. */
-static hash_t id_hash(Assoc *assoc, uint8_t *id)
+static hash_t id_hash(const Assoc *assoc, const uint8_t *id)
 {
     uint32_t i, res = 0x19a64e82;
 
@@ -213,7 +213,7 @@ static hash_t id_hash(Assoc *assoc, uint8_t *id)
 
 /* up to HASH_COLLIDE_COUNT calls to different spots,
  * result IS mapped to CANDIDATES_TO_KEEP range */
-static hash_t hash_collide(Assoc *assoc, hash_t hash)
+static hash_t hash_collide(const Assoc *assoc, hash_t hash)
 {
     uint64_t hash64 = hash % assoc->candidates_bucket_size;
     hash64 = (hash64 * HASH_COLLIDE_PRIME) % assoc->candidates_bucket_size;
@@ -241,7 +241,7 @@ static hash_t hash_collide(Assoc *assoc, hash_t hash)
 }
 
 /* returns the "seen" assoc related to the ipp */
-static IPPTsPng *entry_assoc(Client_entry *cl_entry, IP_Port *ipp)
+static IPPTsPng *entry_assoc(Client_entry *cl_entry, const IP_Port *ipp)
 {
     if (!cl_entry)
         return NULL;
@@ -256,7 +256,7 @@ static IPPTsPng *entry_assoc(Client_entry *cl_entry, IP_Port *ipp)
 }
 
 /* returns the "heard" assoc related to the ipp */
-static IP_Port *entry_heard_get(Client_entry *entry, IP_Port *ipp)
+static IP_Port *entry_heard_get(Client_entry *entry, const IP_Port *ipp)
 {
     if (ipp->ip.family == AF_INET)
         return &entry->assoc_heard4;
@@ -271,7 +271,7 @@ static IP_Port *entry_heard_get(Client_entry *entry, IP_Port *ipp)
  * LAN ip
  *
  * returns 1 if the entry did change */
-static int entry_heard_store(Client_entry *entry, IPPTs *ippts)
+static int entry_heard_store(Client_entry *entry, const IPPTs *ippts)
 {
     if (!entry || !ippts)
         return 0;
@@ -279,7 +279,8 @@ static int entry_heard_store(Client_entry *entry, IPPTs *ippts)
     if (!ipport_isset(&ippts->ip_port))
         return 0;
 
-    IP_Port  *heard, *ipp = &ippts->ip_port;
+    IP_Port  *heard;
+    const IP_Port  *ipp = &ippts->ip_port;
 
     if (ipp->ip.family == AF_INET)
         heard = &entry->assoc_heard4;
@@ -314,13 +315,13 @@ static int entry_heard_store(Client_entry *entry, IPPTs *ippts)
 }
 
 /* maps Assoc callback signature to id_closest() */
-static int assoc_id_closest(Assoc *assoc, void *callback_data, uint8_t *client_id, uint8_t *client_id1,
-                            uint8_t *client_id2)
+static int assoc_id_closest(const Assoc *assoc, void *callback_data, const uint8_t *client_id, const uint8_t *client_id1,
+                            const uint8_t *client_id2)
 {
     return id_closest(client_id, client_id1, client_id2);
 }
 
-static bucket_t id_bucket(uint8_t *id, uint8_t bits)
+static bucket_t id_bucket(const uint8_t *id, uint8_t bits)
 {
     /* return the first "bits" bits of id */
     bucket_t retval = 0;
@@ -340,12 +341,12 @@ static bucket_t id_bucket(uint8_t *id, uint8_t bits)
 /*****************************************************************************/
 
 
-static bucket_t candidates_id_bucket(Assoc *assoc, uint8_t *id)
+static bucket_t candidates_id_bucket(const Assoc *assoc, const uint8_t *id)
 {
     return id_bucket(id, assoc->candidates_bucket_bits);
 }
 
-static uint8_t candidates_search(Assoc *assoc, uint8_t *id, hash_t hash, Client_entry **entryptr)
+static uint8_t candidates_search(const Assoc *assoc, const uint8_t *id, hash_t hash, Client_entry **entryptr)
 {
     bucket_t bucket = candidates_id_bucket(assoc, id);
     candidates_bucket *cnd_bckt = &assoc->candidates[bucket];
@@ -365,8 +366,8 @@ static uint8_t candidates_search(Assoc *assoc, uint8_t *id, hash_t hash, Client_
     return 0;
 }
 
-static void candidates_update_assoc(Assoc *assoc, Client_entry *entry, uint8_t used, IPPTs *ippts_send,
-                                    IP_Port *ipp_recv)
+static void candidates_update_assoc(const Assoc *assoc, Client_entry *entry, uint8_t used, const IPPTs *ippts_send,
+                                    const IP_Port *ipp_recv)
 {
     if (!assoc || !entry || !ippts_send)
         return;
@@ -397,7 +398,7 @@ static void candidates_update_assoc(Assoc *assoc, Client_entry *entry, uint8_t u
     entry_heard_store(entry, ippts_send);
 }
 
-static uint8_t candidates_create_internal(Assoc *assoc, hash_t hash, uint8_t *id, uint8_t seen,
+static uint8_t candidates_create_internal(const Assoc *assoc, hash_t const hash, const uint8_t *id, uint8_t seen,
         uint8_t used, bucket_t *bucketptr, size_t *posptr)
 {
     if (!assoc || !id || !bucketptr ||  !posptr)
@@ -454,8 +455,8 @@ static uint8_t candidates_create_internal(Assoc *assoc, hash_t hash, uint8_t *id
     return 0;
 }
 
-static uint8_t candidates_create_new(Assoc *assoc, hash_t hash, uint8_t *id, uint8_t used,
-                                     IPPTs *ippts_send, IP_Port *ipp_recv)
+static uint8_t candidates_create_new(const Assoc *assoc, hash_t hash, const uint8_t *id, uint8_t used,
+                                     const IPPTs *ippts_send, const IP_Port *ipp_recv)
 {
     if (!assoc || !id || !ippts_send)
         return 0;
@@ -550,7 +551,7 @@ static void client_id_self_update(Assoc *assoc)
  * seen should be 0 (zero), if the candidate was announced by someone else,
  * seen should be 1 (one), if there is confirmed connectivity (a definite response)
  */
-uint8_t Assoc_add_entry(Assoc *assoc, uint8_t *id, IPPTs *ippts_send, IP_Port *ipp_recv, uint8_t used)
+uint8_t Assoc_add_entry(Assoc *assoc, const uint8_t *id, const IPPTs *ippts_send, const IP_Port *ipp_recv, uint8_t used)
 {
     if (!assoc || !id || !ippts_send)
         return 0;
@@ -777,7 +778,7 @@ static size_t prime_upto_min9(size_t limit)
 }
 
 /* create */
-Assoc *new_Assoc(size_t bits, size_t entries, uint8_t *public_id)
+Assoc *new_Assoc(size_t bits, size_t entries, const uint8_t *public_id)
 {
     if (!public_id)
         return NULL;
@@ -850,7 +851,7 @@ Assoc *new_Assoc(size_t bits, size_t entries, uint8_t *public_id)
     return assoc;
 }
 
-Assoc *new_Assoc_default(uint8_t *public_id)
+Assoc *new_Assoc_default(const uint8_t *public_id)
 {
     /* original 8, 251 averages to ~32k entries... probably the whole DHT :D
      * 320 entries is fine, hopefully */
@@ -858,7 +859,7 @@ Assoc *new_Assoc_default(uint8_t *public_id)
 }
 
 /* own client_id, assocs for this have to be ignored */
-void Assoc_self_client_id_changed(Assoc *assoc, uint8_t *id)
+void Assoc_self_client_id_changed(Assoc *assoc, const uint8_t *id)
 {
     if (assoc && id) {
         assoc->self_hash = 0;