+/**
+ * cached_getkeysigs - Gets the signatures on a key.
+ * @keyid: The key we want the signatures for.
+ *
+ * This function gets the signatures on a key. It's the same as the
+ * getkeysigs function above except we use the hash module to cache the
+ * data so if we need it again it's already loaded.
+ */
+struct ll *cached_getkeysigs(uint64_t keyid)
+{
+ struct stats_key *key = NULL;
+
+ if (keyid == 0) {
+ return NULL;
+ }
+
+ key = findinhash(keyid);
+ if (key == NULL) {
+ key = malloc(sizeof(*key));
+ if (key != NULL) {
+ key->keyid = keyid;
+ key->colour = 0;
+ key->parent = 0;
+ key->sigs = NULL;
+ key->gotsigs = false;
+ addtohash(key);
+ } else {
+ perror("cached_getkeysigs()");
+ return NULL;
+ }
+ }
+ if (key->gotsigs == false) {
+ key->sigs = getkeysigs(key->keyid);
+ key->gotsigs = true;
+ }
+
+ return key->sigs;
+}
+