diff --git a/libiptc.c b/libiptc.c
index 76b3c29..6f7a9d1 100644
--- a/libiptc.c
+++ b/libiptc.c
@@ -1,6 +1,5 @@
 #include "libiptc.h"
 
-
 int x_get_rule(const char *chain, struct xtc_handle *handle, char *ipv4)
 {
     int r=1;
@@ -83,7 +82,7 @@ struct ipt_entry_match *get_match(const char *sports, const char *dports, unsign
     size = IPT_ALIGN(sizeof(*match)) + IPT_ALIGN(sizeof(*udpinfo));
     match = (struct ipt_entry_match *)calloc(1, size);
     match->u.match_size = size;
-    memmove(match->u.user.name, protocol, IPT_FUNCTION_MAXNAMELEN);
+    strncpy(match->u.user.name, protocol, IPT_FUNCTION_MAXNAMELEN-2);
 
     udpinfo = (struct ipt_udp *)match->data;
     udpinfo->spts[1] = udpinfo->dpts[1] = 0xFFFF;
@@ -103,8 +102,8 @@ struct ipt_entry_match *get_match(const char *sports, const char *dports, unsign
 int iptc_add_rule(const char *table, const char *chain, int protocol, const char *iniface, const char *outiface, unsigned int src, 
     unsigned int dest, const char *srcports, const char *destports, const char *target, const char *dnat_to, const int append)
 {
-    struct xtc_handle *handle = NULL;
-    struct ipt_entry *chain_entry = NULL;
+    struct xtc_handle *handle;
+    struct ipt_entry *chain_entry;
     struct ipt_entry_match *entry_match = NULL;
     struct ipt_entry_target *entry_target = NULL;
     ipt_chainlabel labelit;
@@ -123,9 +122,9 @@ int iptc_add_rule(const char *table, const char *chain, int protocol, const char
     }
 
     if (iniface)
-        memmove(chain_entry->ip.iniface, iniface, IFNAMSIZ);
+        strncpy(chain_entry->ip.iniface, iniface, IFNAMSIZ);
     if (outiface)
-        memmove(chain_entry->ip.outiface, outiface, IFNAMSIZ);
+        strncpy(chain_entry->ip.outiface, outiface, IFNAMSIZ);
 
     chain_entry->ip.proto = protocol;
     if (IPPROTO_UDP == protocol)
@@ -138,7 +137,7 @@ int iptc_add_rule(const char *table, const char *chain, int protocol, const char
         size = IPT_ALIGN(sizeof(struct ipt_entry_target)) + IPT_ALIGN(sizeof(int));
         entry_target = (struct ipt_entry_target *)calloc(1, size);
         entry_target->u.user.target_size = size;
-        memmove(entry_target->u.user.name, target, IPT_FUNCTION_MAXNAMELEN);
+        strncpy(entry_target->u.user.name, target, IPT_FUNCTION_MAXNAMELEN);
     }
     if (entry_match) {
         match_size = entry_match->u.match_size;
@@ -168,7 +167,7 @@ int iptc_add_rule(const char *table, const char *chain, int protocol, const char
         return 1;
     }
 
-    memmove(labelit, chain, sizeof(ipt_chainlabel));
+    strncpy(labelit, chain, sizeof(ipt_chainlabel));
     //printf("Chain name:%s\n", chain);
     result = iptc_is_chain(chain, handle);
     if (!result) {
@@ -208,4 +207,4 @@ int iptc_add_rule(const char *table, const char *chain, int protocol, const char
     free(chain_entry);
     
     return 0;
-}
\ No newline at end of file
+}