--- dhis-dns-engine-5.3.orig/nsupdate.c
+++ dhis-dns-engine-5.3/nsupdate.c
@@ -41,10 +41,10 @@
 
 #define	NSUPDATE_CMD "/usr/bin/nsupdate"
 
-int dns_update(unsigned char *r_dname,int r_opcode,short int r_type,
-                unsigned int r_ttl,int r_size,unsigned char *r_data) {
+int dns_update(char *r_dname,int r_opcode,short int r_type,
+                unsigned int r_ttl,int r_size,char *r_data) {
 
-        unsigned char str[1024];
+        char str[1024];
 
 
         if(r_opcode==ADD)