--- gvpe/src/util.C	2003/10/14 19:46:46	1.9
+++ gvpe/src/util.C	2003/10/16 02:41:21	1.11
@@ -1,5 +1,6 @@
 /*
     util.C -- process management and other utility functions
+    Copyright (C) 2003 Marc Lehmann <pcg@goof.com>
     
     Some of these are taken from tinc, see the AUTHORS file.
  
@@ -204,3 +205,28 @@
 }
 #endif
 
+void
+id2mac (unsigned int id, void *m)
+{
+  mac &p = *(mac *)m;
+
+  if (id)
+    {
+      p[0] = 0xfe;
+      p[1] = 0xfd;
+      p[2] = 0x80;
+      p[3] = 0x00;
+      p[4] = id >> 8;
+      p[5] = id;
+    }
+  else
+    {
+      p[0] = 0xff;
+      p[1] = 0xff;
+      p[2] = 0xff;
+      p[3] = 0xff;
+      p[4] = 0xff;
+      p[5] = 0xff;
+    }
+}
+