增加subscribe ip扫描, 重构maat部分代码

common/src/kni_utils.cpp

@@ -22,6 +22,17 @@ int kni_addr_trans_v6(struct stream_tuple4_v6 *tuple4, char *output, int len){
 	return 0;
 }
 
+char* kni_strdup(const char* s){
+	char*d=NULL;
+	if(s==NULL){
+		return NULL;
+	}
+
+	d=(char*)malloc(strlen(s)+1);
+	memcpy(d,s,strlen(s)+1);
+	return d;
+}
+
 uint16_t kni_ip_checksum(const void *buf, size_t hdr_len){
 	unsigned long sum = 0;
 	const uint16_t *ip1;