diff --git a/terminal/ldap.c b/terminal/ldap.c
index b1ed620..209af8e 100644
--- a/terminal/ldap.c
+++ b/terminal/ldap.c
@@ -12,6 +12,9 @@
 
 const int NO_SUCH_CARD = LDAP_NO_SUCH_OBJECT;
 
+// fucking gcc
+size_t strnlen(const char *s, size_t maxlen);
+
 static char* ldap_attrs_hashes[] = {
   "uid",
   "mifareIDHash",
@@ -65,7 +68,7 @@ int ldap_dn_by_mifare(char *MifareID, char *DNOut, int *DNLength)
     nentries = ldap_count_entries(ld, msg);
     result = LDAP_NO_SUCH_OBJECT;
     for(entry = ldap_first_entry(ld, msg); entry != NULL; entry = ldap_next_entry(ld, entry)) {
-      values = ldap_get_values(ld, entry, "mifareIDHash");
+      values = (unsigned char**)ldap_get_values(ld, entry, "mifareIDHash");
       if(values) {
         for(i = 0; values[i] != NULL; ++i) {
           bzero(entry_salt, 20);
@@ -81,7 +84,7 @@ int ldap_dn_by_mifare(char *MifareID, char *DNOut, int *DNLength)
             result = 0;
           }
         }
-        ldap_value_free(values);
+        ldap_value_free((char **)values);
       }
     }
 search_finalize:
diff --git a/terminal/ldap.h b/terminal/ldap.h
index 1a62b38..c0eb4c8 100644
--- a/terminal/ldap.h
+++ b/terminal/ldap.h
@@ -2,6 +2,7 @@
 #define __LDAP_H__
 
 int ldap_dn_by_mifare(char *MifareID, char *DNOut, int *DNLength);
+int hash_mifare(char *MifareID, char *salt, char* target);
 const int NO_SUCH_CARD;
 
 #endif