diff -r 000000000000 -r f9ffdbd96607 punbb/include/dblayer/sqlite.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/punbb/include/dblayer/sqlite.php	Wed Jul 11 21:01:48 2007 -0400
@@ -0,0 +1,253 @@
+<?php
+/***********************************************************************
+
+  Copyright (C) 2002-2005  Rickard Andersson (rickard@punbb.org)
+
+  This file is part of PunBB.
+
+  PunBB 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.
+
+  PunBB 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., 59 Temple Place, Suite 330, Boston,
+  MA  02111-1307  USA
+
+************************************************************************/
+
+
+// Make sure we have built in support for SQLite
+if (!function_exists('sqlite_open'))
+	exit('This PHP environment doesn\'t have SQLite support built in. SQLite support is required if you want to use a SQLite database to run this forum. Consult the PHP documentation for further assistance.');
+
+
+class DBLayer
+{
+	var $prefix;
+	var $link_id;
+	var $query_result;
+	var $in_transaction = 0;
+
+	var $saved_queries = array();
+	var $num_queries = 0;
+
+	var $error_no = false;
+	var $error_msg = 'Unknown';
+
+
+	function DBLayer($db_host, $db_username, $db_password, $db_name, $db_prefix, $p_connect)
+	{
+		// Prepend $db_name with the path to the forum root directory
+		$db_name = PUN_ROOT.$db_name;
+
+		$this->prefix = $db_prefix;
+
+		if (!file_exists($db_name))
+		{
+			@touch($db_name);
+			@chmod($db_name, 0666);
+			if (!file_exists($db_name))
+				error('Unable to create new database \''.$db_name.'\'. Permission denied', __FILE__, __LINE__);
+		}
+
+		if (!is_readable($db_name))
+			error('Unable to open database \''.$db_name.'\' for reading. Permission denied', __FILE__, __LINE__);
+
+		if (!is_writable($db_name))
+			error('Unable to open database \''.$db_name.'\' for writing. Permission denied', __FILE__, __LINE__);
+
+		if ($p_connect)
+			$this->link_id = @sqlite_popen($db_name, 0666, $sqlite_error);
+		else
+			$this->link_id = @sqlite_open($db_name, 0666, $sqlite_error);
+
+		if (!$this->link_id)
+			error('Unable to open database \''.$db_name.'\'. SQLite reported: '.$sqlite_error, __FILE__, __LINE__);
+		else
+			return $this->link_id;
+	}
+
+
+	function start_transaction()
+	{
+		++$this->in_transaction;
+
+		return (@sqlite_query($this->link_id, 'BEGIN')) ? true : false;
+	}
+
+
+	function end_transaction()
+	{
+		--$this->in_transaction;
+
+		if (@sqlite_query($this->link_id, 'COMMIT'))
+			return true;
+		else
+		{
+			@sqlite_query($this->link_id, 'ROLLBACK');
+			return false;
+		}
+	}
+
+
+	function query($sql, $unbuffered = false)
+	{
+		if (defined('PUN_SHOW_QUERIES'))
+			$q_start = get_microtime();
+
+		if ($unbuffered)
+			$this->query_result = @sqlite_unbuffered_query($this->link_id, $sql);
+		else
+			$this->query_result = @sqlite_query($this->link_id, $sql);
+
+		if ($this->query_result)
+		{
+			if (defined('PUN_SHOW_QUERIES'))
+				$this->saved_queries[] = array($sql, sprintf('%.5f', get_microtime() - $q_start));
+
+			++$this->num_queries;
+
+			return $this->query_result;
+		}
+		else
+		{
+			if (defined('PUN_SHOW_QUERIES'))
+				$this->saved_queries[] = array($sql, 0);
+
+			$this->error_no = @sqlite_last_error($this->link_id);
+			$this->error_msg = @sqlite_error_string($this->error_no);
+
+			if ($this->in_transaction)
+				@sqlite_query($this->link_id, 'ROLLBACK');
+
+			--$this->in_transaction;
+
+			return false;
+		}
+	}
+
+
+	function result($query_id = 0, $row = 0)
+	{
+		if ($query_id)
+		{
+			if ($row != 0)
+				@sqlite_seek($query_id, $row);
+
+			return @current(@sqlite_current($query_id));
+		}
+		else
+			return false;
+	}
+
+
+	function fetch_assoc($query_id = 0)
+	{
+		if ($query_id)
+		{
+			$cur_row = @sqlite_fetch_array($query_id, SQLITE_ASSOC);
+			if ($cur_row)
+			{
+				// Horrible hack to get rid of table names and table aliases from the array keys
+				while (list($key, $value) = @each($cur_row))
+				{
+				    $dot_spot = strpos($key, '.');
+				    if ($dot_spot !== false)
+				    {
+				        unset($cur_row[$key]);
+				        $key = substr($key, $dot_spot+1);
+				        $cur_row[$key] = $value;
+				    }
+				}
+			}
+
+			return $cur_row;
+		}
+		else
+			return false;
+	}
+
+
+	function fetch_row($query_id = 0)
+	{
+		return ($query_id) ? @sqlite_fetch_array($query_id, SQLITE_NUM) : false;
+	}
+
+
+	function num_rows($query_id = 0)
+	{
+		return ($query_id) ? @sqlite_num_rows($query_id) : false;
+	}
+
+
+	function affected_rows()
+	{
+		return ($this->query_result) ? @sqlite_changes($this->query_result) : false;
+	}
+
+
+	function insert_id()
+	{
+		return ($this->link_id) ? @sqlite_last_insert_rowid($this->link_id) : false;
+	}
+
+
+	function get_num_queries()
+	{
+		return $this->num_queries;
+	}
+
+
+	function get_saved_queries()
+	{
+		return $this->saved_queries;
+	}
+
+
+	function free_result($query_id = false)
+	{
+		return true;
+	}
+
+
+	function escape($str)
+	{
+		return is_array($str) ? '' : sqlite_escape_string($str);
+	}
+
+
+	function error()
+	{
+		$result['error_sql'] = @current(@end($this->saved_queries));
+		$result['error_no'] = $this->error_no;
+		$result['error_msg'] = $this->error_msg;
+
+		return $result;
+	}
+
+
+	function close()
+	{
+		if ($this->link_id)
+		{
+			if ($this->in_transaction)
+			{
+				if (defined('PUN_SHOW_QUERIES'))
+					$this->saved_queries[] = array('COMMIT', 0);
+
+				@sqlite_query($this->link_id, 'COMMIT');
+			}
+
+			return @sqlite_close($this->link_id);
+		}
+		else
+			return false;
+	}
+}