implemented talloc() as described on samba-technical. This fixes the

lp_string() bug properly.

we still need to add lp_talloc_free() calls in all the main event
loops, I've only put it in smbd and nmbd thus far.

source/include/talloc.h

@@ -0,0 +1,32 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 3.0
+   Samba temporary memory allocation functions
+   Copyright (C) Andrew Tridgell 2000
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+struct talloc_chunk {
+	struct talloc_chunk *next;
+	void *ptr;
+	size_t alloc_size;
+	size_t total_size;
+};
+
+typedef struct {
+	struct talloc_chunk *list;
+} TALLOC_CTX;
+