From: Phil Thompson <phil@river-bank.demon.co.uk>

I've completed the patch to fix the protocol and authentication issues I
was discussing a couple of weeks ago.  The particular changes are:

- the protocol has a version number
- network byte order is used throughout
- the pg_hba.conf file is used to specify what method is used to
  authenticate a frontend (either password, ident, trust, reject, krb4
  or krb5)
- support for multiplexed backends is removed
- appropriate changes to man pages
- the -a switch to many programs to specify an authentication service
  no longer has any effect
- the libpq.so version number has changed to 1.1

The new backend still supports the old protocol so old interfaces won't
break.

src/backend/tcop/fastpath.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/tcop/fastpath.c,v 1.11 1998/01/11 21:16:01 scrappy Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/tcop/fastpath.c,v 1.12 1998/01/26 01:41:28 scrappy Exp $
  *
  * NOTES
  *	  This cruft is the server side of PQfn.
@@ -336,7 +336,7 @@ HandleFunctionRequest()
 				else
 				{				/* ... fixed */
 					/* XXX cross our fingers and trust "argsize" */
-					if (!(p = palloc(argsize)))
+					if (!(p = palloc(argsize + 1)))
 					{
 						elog(ERROR, "HandleFunctionRequest: palloc failed");
 					}