diff --git a/utils/magimail/src/shared/node4d.c b/utils/magimail/src/shared/node4d.c
new file mode 100644
index 0000000..10575dc
--- /dev/null
+++ b/utils/magimail/src/shared/node4d.c
@@ -0,0 +1,120 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "node4d.h"
+
+bool Parse4DTemplate(char *buf, struct Node4D *node,struct Node4D *tpl)
+{
+   uint32_t c,val;
+   bool GotZone,GotNet,GotNode,GotVal;
+
+	GotZone=FALSE;
+	GotNet=FALSE;
+	GotNode=FALSE;
+	
+	GotVal=FALSE;
+
+	Copy4D(node,tpl);
+
+	for(c=0;c<strlen(buf);c++)
+	{
+		if(buf[c]==':')
+		{
+         if(GotZone || GotNet || GotNode) return(FALSE);				
+			if(GotVal) node->Zone=val;
+
+         GotZone=TRUE;
+			GotVal=FALSE;
+	   }
+		else if(buf[c]=='/')
+		{
+         if(GotNet || GotNode) return(FALSE);
+			if(GotVal) node->Net=val;
+
+         GotNet=TRUE;
+			GotVal=FALSE;
+		}
+		else if(buf[c]=='.')
+		{
+         if(GotNode) return(FALSE);
+         if(GotVal) node->Node=val;
+
+         GotNode=TRUE;
+			GotVal=FALSE;
+		}
+		else if(buf[c]>='0' && buf[c]<='9')
+		{
+			if(!GotVal)
+			{
+				val=0;
+				GotVal=TRUE;
+			}
+
+         val*=10;
+         val+=buf[c]-'0';
+		}
+		else return(FALSE);
+	}
+
+	if(GotVal)
+	{
+	   if(GotZone && !GotNet)  node->Net=val;
+   	else if(GotNode)        node->Point=val;
+	   else                    node->Node=val;
+	}
+	
+   return(TRUE);
+}
+
+bool Parse4D(char *buf, struct Node4D *node)
+{
+	struct Node4D tpl4d = { 0,0,0,0 };
+	
+	return Parse4DTemplate(buf,node,&tpl4d);
+}
+
+void Copy4D(struct Node4D *node1,struct Node4D *node2)
+{
+   node1->Zone=node2->Zone;
+   node1->Net=node2->Net;
+   node1->Node=node2->Node;
+   node1->Point=node2->Point;
+}
+
+int Compare4D(struct Node4D *node1,struct Node4D *node2)
+{
+   if(node1->Zone!=0 && node2->Zone!=0)
+   {
+      if(node1->Zone > node2->Zone) return(1);
+      if(node1->Zone < node2->Zone) return(-1);
+   }
+
+   if(node1->Net  > node2->Net) return(1);
+   if(node1->Net  < node2->Net) return(-1);
+
+   if(node1->Node > node2->Node) return(1);
+   if(node1->Node < node2->Node) return(-1);
+
+   if(node1->Point > node2->Point) return(1);
+   if(node1->Point < node2->Point) return(-1);
+
+   return(0);
+}
+
+void Print4D(struct Node4D *n4d,char *dest)
+{
+   if(n4d->Point)
+      sprintf(dest,"%u:%u/%u.%u",n4d->Zone,
+                                     n4d->Net,
+                                     n4d->Node,
+                                     n4d->Point);
+
+   else
+      sprintf(dest,"%u:%u/%u",n4d->Zone,
+                                 n4d->Net,
+                                 n4d->Node);
+}
+
+