From 95ebbc985a0e64a364e880de89dbc1ae7952d91e Mon Sep 17 00:00:00 2001
From: till <till@php.net>
Date: Sun, 3 Feb 2008 12:58:34 +0000
Subject: * putting latest MDB2 into SVN * adding MDB2 drivers for mssql,
 mysql, mysqli, pgsql, sqlite

---
 program/lib/MDB2/LOB.php | 264 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 264 insertions(+)
 create mode 100644 program/lib/MDB2/LOB.php

(limited to 'program/lib/MDB2/LOB.php')

diff --git a/program/lib/MDB2/LOB.php b/program/lib/MDB2/LOB.php
new file mode 100644
index 000000000..69db267d6
--- /dev/null
+++ b/program/lib/MDB2/LOB.php
@@ -0,0 +1,264 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP version 5                                                        |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+//
+// $Id: LOB.php,v 1.34 2006/10/25 11:52:21 lsmith Exp $
+
+/**
+ * @package  MDB2
+ * @category Database
+ * @author   Lukas Smith <smith@pooteeweet.org>
+ */
+
+require_once 'MDB2.php';
+
+/**
+ * MDB2_LOB: user land stream wrapper implementation for LOB support
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_LOB
+{
+    /**
+     * contains the key to the global MDB2 instance array of the associated
+     * MDB2 instance
+     *
+     * @var integer
+     * @access protected
+     */
+    var $db_index;
+
+    /**
+     * contains the key to the global MDB2_LOB instance array of the associated
+     * MDB2_LOB instance
+     *
+     * @var integer
+     * @access protected
+     */
+    var $lob_index;
+
+    // {{{ stream_open()
+
+    /**
+     * open stream
+     *
+     * @param string specifies the URL that was passed to fopen()
+     * @param string the mode used to open the file
+     * @param int holds additional flags set by the streams API
+     * @param string not used
+     *
+     * @return bool
+     * @access public
+     */
+    function stream_open($path, $mode, $options, &$opened_path)
+    {
+        if (!preg_match('/^rb?\+?$/', $mode)) {
+            return false;
+        }
+        $url = parse_url($path);
+        if (empty($url['host'])) {
+            return false;
+        }
+        $this->db_index = (int)$url['host'];
+        if (!isset($GLOBALS['_MDB2_databases'][$this->db_index])) {
+            return false;
+        }
+        $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
+        $this->lob_index = (int)$url['user'];
+        if (!isset($db->datatype->lobs[$this->lob_index])) {
+            return false;
+        }
+        return true;
+    }
+    // }}}
+
+    // {{{ stream_read()
+
+    /**
+     * read stream
+     *
+     * @param int number of bytes to read
+     *
+     * @return string
+     * @access public
+     */
+    function stream_read($count)
+    {
+        if (isset($GLOBALS['_MDB2_databases'][$this->db_index])) {
+            $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
+            $db->datatype->_retrieveLOB($db->datatype->lobs[$this->lob_index]);
+
+            $data = $db->datatype->_readLOB($db->datatype->lobs[$this->lob_index], $count);
+            $length = strlen($data);
+            if ($length == 0) {
+                $db->datatype->lobs[$this->lob_index]['endOfLOB'] = true;
+            }
+            $db->datatype->lobs[$this->lob_index]['position'] += $length;
+            return $data;
+        }
+    }
+    // }}}
+
+    // {{{ stream_write()
+
+    /**
+     * write stream, note implemented
+     *
+     * @param string data
+     *
+     * @return int
+     * @access public
+     */
+    function stream_write($data)
+    {
+        return 0;
+    }
+    // }}}
+
+    // {{{ stream_tell()
+
+    /**
+     * return the current position
+     *
+     * @return int current position
+     * @access public
+     */
+    function stream_tell()
+    {
+        if (isset($GLOBALS['_MDB2_databases'][$this->db_index])) {
+            $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
+            return $db->datatype->lobs[$this->lob_index]['position'];
+        }
+    }
+    // }}}
+
+    // {{{ stream_eof()
+
+    /**
+     * Check if stream reaches EOF
+     *
+     * @return bool
+     * @access public
+     */
+    function stream_eof()
+    {
+        if (!isset($GLOBALS['_MDB2_databases'][$this->db_index])) {
+            return true;
+        }
+
+        $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
+        $result = $db->datatype->_endOfLOB($db->datatype->lobs[$this->lob_index]);
+        if (version_compare(phpversion(), "5.0", ">=")
+            && version_compare(phpversion(), "5.1", "<")
+        ) {
+            return !$result;
+        }
+        return $result;
+    }
+    // }}}
+
+    // {{{ stream_seek()
+
+    /**
+     * Seek stream, not implemented
+     *
+     * @param int offset
+     * @param int whence
+     *
+     * @return bool
+     * @access public
+     */
+    function stream_seek($offset, $whence)
+    {
+        return false;
+    }
+    // }}}
+
+    // {{{ stream_stat()
+
+    /**
+     * return information about stream
+     *
+     * @access public
+     */
+    function stream_stat()
+    {
+        if (isset($GLOBALS['_MDB2_databases'][$this->db_index])) {
+            $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
+            return array(
+              'db_index' => $this->db_index,
+              'lob_index' => $this->lob_index,
+            );
+        }
+    }
+    // }}}
+
+    // {{{ stream_close()
+
+    /**
+     * close stream
+     *
+     * @access public
+     */
+    function stream_close()
+    {
+        if (isset($GLOBALS['_MDB2_databases'][$this->db_index])) {
+            $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
+            if (isset($db->datatype->lobs[$this->lob_index])) {
+                $db->datatype->_destroyLOB($db->datatype->lobs[$this->lob_index]);
+                unset($db->datatype->lobs[$this->lob_index]);
+            }
+        }
+    }
+    // }}}
+}
+
+// register streams wrapper
+if (!stream_wrapper_register("MDB2LOB", "MDB2_LOB")) {
+    MDB2::raiseError();
+    return false;
+}
+
+?>
-- 
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