Ethernet MAC addresses (macaddr type) are not compared correctly for

equality.  The lobits macro is wrong and extracts the wrong set of
bits out of the structure.

To exhibit the problem:

select '000000:000000'::macaddr = '000000:110000'::macaddr ;
?column?
--------
t
(1 row)

Daniel Boyd

src/backend/utils/adt/mac.c

 /*
  *	PostgreSQL type definitions for MAC addresses.
  *
- *	$Id: mac.c,v 1.13 1999/07/17 20:17:57 momjian Exp $
+ *	$Id: mac.c,v 1.14 1999/12/16 01:30:49 momjian Exp $
  */
 
 
@@ -132,7 +132,7 @@ manufacturer manufacturers[] = {
   ((unsigned long)((addr->a<<16)|(addr->b<<8)|(addr->c)))
 
 #define lobits(addr) \
-  ((unsigned long)((addr->c<<16)|(addr->e<<8)|(addr->f)))
+  ((unsigned long)((addr->d<<16)|(addr->e<<8)|(addr->f)))
 
 /*
  *	MAC address reader.  Accepts several common notations.