include external libs in a subdir to make install easier

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diff --git a/extlib/DB/mssql.php b/extlib/DB/mssql.php
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+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's mssql extension
+ * for interacting with Microsoft SQL Server databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Sterling Hughes <sterling@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2007 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id: mssql.php,v 1.92 2007/09/21 13:40:41 aharvey Exp $
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's mssql extension
+ * for interacting with Microsoft SQL Server databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * DB's mssql driver is only for Microsfoft SQL Server databases.
+ *
+ * If you're connecting to a Sybase database, you MUST specify "sybase"
+ * as the "phptype" in the DSN.
+ *
+ * This class only works correctly if you have compiled PHP using
+ * --with-mssql=[dir_to_FreeTDS].
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Sterling Hughes <sterling@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2007 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: 1.7.14RC1
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_mssql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'mssql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'mssql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'emulate',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    // XXX Add here error codes ie: 'S100E' => DB_ERROR_SYNTAX
+    var $errorcode_map = array(
+        102   => DB_ERROR_SYNTAX,
+        110   => DB_ERROR_VALUE_COUNT_ON_ROW,
+        155   => DB_ERROR_NOSUCHFIELD,
+        156   => DB_ERROR_SYNTAX,
+        170   => DB_ERROR_SYNTAX,
+        207   => DB_ERROR_NOSUCHFIELD,
+        208   => DB_ERROR_NOSUCHTABLE,
+        245   => DB_ERROR_INVALID_NUMBER,
+        319   => DB_ERROR_SYNTAX,
+        321   => DB_ERROR_NOSUCHFIELD,
+        325   => DB_ERROR_SYNTAX,
+        336   => DB_ERROR_SYNTAX,
+        515   => DB_ERROR_CONSTRAINT_NOT_NULL,
+        547   => DB_ERROR_CONSTRAINT,
+        1018  => DB_ERROR_SYNTAX,
+        1035  => DB_ERROR_SYNTAX,
+        1913  => DB_ERROR_ALREADY_EXISTS,
+        2209  => DB_ERROR_SYNTAX,
+        2223  => DB_ERROR_SYNTAX,
+        2248  => DB_ERROR_SYNTAX,
+        2256  => DB_ERROR_SYNTAX,
+        2257  => DB_ERROR_SYNTAX,
+        2627  => DB_ERROR_CONSTRAINT,
+        2714  => DB_ERROR_ALREADY_EXISTS,
+        3607  => DB_ERROR_DIVZERO,
+        3701  => DB_ERROR_NOSUCHTABLE,
+        7630  => DB_ERROR_SYNTAX,
+        8134  => DB_ERROR_DIVZERO,
+        9303  => DB_ERROR_SYNTAX,
+        9317  => DB_ERROR_SYNTAX,
+        9318  => DB_ERROR_SYNTAX,
+        9331  => DB_ERROR_SYNTAX,
+        9332  => DB_ERROR_SYNTAX,
+        15253 => DB_ERROR_SYNTAX,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The database specified in the DSN
+     *
+     * It's a fix to allow calls to different databases in the same script.
+     *
+     * @var string
+     * @access private
+     */
+    var $_db = null;
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_mssql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('mssql') && !PEAR::loadExtension('sybase')
+            && !PEAR::loadExtension('sybase_ct'))
+        {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $params = array(
+            $dsn['hostspec'] ? $dsn['hostspec'] : 'localhost',
+            $dsn['username'] ? $dsn['username'] : null,
+            $dsn['password'] ? $dsn['password'] : null,
+        );
+        if ($dsn['port']) {
+            $params[0] .= ((substr(PHP_OS, 0, 3) == 'WIN') ? ',' : ':')
+                        . $dsn['port'];
+        }
+
+        $connect_function = $persistent ? 'mssql_pconnect' : 'mssql_connect';
+
+        $this->connection = @call_user_func_array($connect_function, $params);
+
+        if (!$this->connection) {
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     @mssql_get_last_message());
+        }
+        if ($dsn['database']) {
+            if (!@mssql_select_db($dsn['database'], $this->connection)) {
+                return $this->raiseError(DB_ERROR_NODBSELECTED,
+                                         null, null, null,
+                                         @mssql_get_last_message());
+            }
+            $this->_db = $dsn['database'];
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @mssql_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = $this->_checkManip($query);
+        $this->last_query = $query;
+        if (!@mssql_select_db($this->_db, $this->connection)) {
+            return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+        }
+        $query = $this->modifyQuery($query);
+        if (!$this->autocommit && $ismanip) {
+            if ($this->transaction_opcount == 0) {
+                $result = @mssql_query('BEGIN TRAN', $this->connection);
+                if (!$result) {
+                    return $this->mssqlRaiseError();
+                }
+            }
+            $this->transaction_opcount++;
+        }
+        $result = @mssql_query($query, $this->connection);
+        if (!$result) {
+            return $this->mssqlRaiseError();
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        return $ismanip ? DB_OK : $result;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal mssql result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return @mssql_next_result($result);
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@mssql_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @mssql_fetch_assoc($result);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @mssql_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return is_resource($result) ? mssql_free_result($result) : false;
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @mssql_num_fields($result);
+        if (!$cols) {
+            return $this->mssqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @mssql_num_rows($result);
+        if ($rows === false) {
+            return $this->mssqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            if (!@mssql_select_db($this->_db, $this->connection)) {
+                return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $result = @mssql_query('COMMIT TRAN', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mssqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            if (!@mssql_select_db($this->_db, $this->connection)) {
+                return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $result = @mssql_query('ROLLBACK TRAN', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mssqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if ($this->_last_query_manip) {
+            $res = @mssql_query('select @@rowcount', $this->connection);
+            if (!$res) {
+                return $this->mssqlRaiseError();
+            }
+            $ar = @mssql_fetch_row($res);
+            if (!$ar) {
+                $result = 0;
+            } else {
+                @mssql_free_result($res);
+                $result = $ar[0];
+            }
+        } else {
+            $result = 0;
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_mssql::createSequence(), DB_mssql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        if (!@mssql_select_db($this->_db, $this->connection)) {
+            return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+        }
+        $repeat = 0;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query("INSERT INTO $seqname (vapor) VALUES (0)");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                ($result->getCode() == DB_ERROR || $result->getCode() == DB_ERROR_NOSUCHTABLE))
+            {
+                $repeat = 1;
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+            } elseif (!DB::isError($result)) {
+                $result = $this->query("SELECT IDENT_CURRENT('$seqname')");
+                if (DB::isError($result)) {
+                    /* Fallback code for MS SQL Server 7.0, which doesn't have
+                     * IDENT_CURRENT. This is *not* safe for concurrent
+                     * requests, and really, if you're using it, you're in a
+                     * world of hurt. Nevertheless, it's here to ensure BC. See
+                     * bug #181 for the gory details.*/
+                    $result = $this->query("SELECT @@IDENTITY FROM $seqname");
+                }
+                $repeat = 0;
+            } else {
+                $repeat = false;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $result = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        return $result[0];
+    }
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_mssql::nextID(), DB_mssql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        return $this->query('CREATE TABLE '
+                            . $this->getSequenceName($seq_name)
+                            . ' ([id] [int] IDENTITY (1, 1) NOT NULL,'
+                            . ' [vapor] [int] NULL)');
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_mssql::nextID(), DB_mssql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * Quotes a string so it can be safely used as a table or column name
+     *
+     * @param string $str  identifier name to be quoted
+     *
+     * @return string  quoted identifier string
+     *
+     * @see DB_common::quoteIdentifier()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteIdentifier($str)
+    {
+        return '[' . str_replace(']', ']]', $str) . ']';
+    }
+
+    // }}}
+    // {{{ mssqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_mssql::errorNative(), DB_mssql::errorCode()
+     */
+    function mssqlRaiseError($code = null)
+    {
+        $message = @mssql_get_last_message();
+        if (!$code) {
+            $code = $this->errorNative();
+        }
+        return $this->raiseError($this->errorCode($code, $message),
+                                 null, null, null, "$code - $message");
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return int  the DBMS' error code
+     */
+    function errorNative()
+    {
+        $res = @mssql_query('select @@ERROR as ErrorCode', $this->connection);
+        if (!$res) {
+            return DB_ERROR;
+        }
+        $row = @mssql_fetch_row($res);
+        return $row[0];
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Determines PEAR::DB error code from mssql's native codes.
+     *
+     * If <var>$nativecode</var> isn't known yet, it will be looked up.
+     *
+     * @param  mixed  $nativecode  mssql error code, if known
+     * @return integer  an error number from a DB error constant
+     * @see errorNative()
+     */
+    function errorCode($nativecode = null, $msg = '')
+    {
+        if (!$nativecode) {
+            $nativecode = $this->errorNative();
+        }
+        if (isset($this->errorcode_map[$nativecode])) {
+            if ($nativecode == 3701
+                && preg_match('/Cannot drop the index/i', $msg))
+            {
+                return DB_ERROR_NOT_FOUND;
+            }
+            return $this->errorcode_map[$nativecode];
+        } else {
+            return DB_ERROR;
+        }
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+     * is a table name.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            if (!@mssql_select_db($this->_db, $this->connection)) {
+                return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $id = @mssql_query("SELECT * FROM $result WHERE 1=0",
+                               $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->mssqlRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @mssql_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            if ($got_string) {
+                $flags = $this->_mssql_field_flags($result,
+                        @mssql_field_name($id, $i));
+                if (DB::isError($flags)) {
+                    return $flags;
+                }
+            } else {
+                $flags = '';
+            }
+
+            $res[$i] = array(
+                'table' => $got_string ? $case_func($result) : '',
+                'name'  => $case_func(@mssql_field_name($id, $i)),
+                'type'  => @mssql_field_type($id, $i),
+                'len'   => @mssql_field_length($id, $i),
+                'flags' => $flags,
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @mssql_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ _mssql_field_flags()
+
+    /**
+     * Get a column's flags
+     *
+     * Supports "not_null", "primary_key",
+     * "auto_increment" (mssql identity), "timestamp" (mssql timestamp),
+     * "unique_key" (mssql unique index, unique check or primary_key) and
+     * "multiple_key" (multikey index)
+     *
+     * mssql timestamp is NOT similar to the mysql timestamp so this is maybe
+     * not useful at all - is the behaviour of mysql_field_flags that primary
+     * keys are alway unique? is the interpretation of multiple_key correct?
+     *
+     * @param string $table   the table name
+     * @param string $column  the field name
+     *
+     * @return string  the flags
+     *
+     * @access private
+     * @author Joern Barthel <j_barthel@web.de>
+     */
+    function _mssql_field_flags($table, $column)
+    {
+        static $tableName = null;
+        static $flags = array();
+
+        if ($table != $tableName) {
+
+            $flags = array();
+            $tableName = $table;
+
+            // get unique and primary keys
+            $res = $this->getAll("EXEC SP_HELPINDEX $table", DB_FETCHMODE_ASSOC);
+            if (DB::isError($res)) {
+                return $res;
+            }
+
+            foreach ($res as $val) {
+                $keys = explode(', ', $val['index_keys']);
+
+                if (sizeof($keys) > 1) {
+                    foreach ($keys as $key) {
+                        $this->_add_flag($flags[$key], 'multiple_key');
+                    }
+                }
+
+                if (strpos($val['index_description'], 'primary key')) {
+                    foreach ($keys as $key) {
+                        $this->_add_flag($flags[$key], 'primary_key');
+                    }
+                } elseif (strpos($val['index_description'], 'unique')) {
+                    foreach ($keys as $key) {
+                        $this->_add_flag($flags[$key], 'unique_key');
+                    }
+                }
+            }
+
+            // get auto_increment, not_null and timestamp
+            $res = $this->getAll("EXEC SP_COLUMNS $table", DB_FETCHMODE_ASSOC);
+            if (DB::isError($res)) {
+                return $res;
+            }
+
+            foreach ($res as $val) {
+                $val = array_change_key_case($val, CASE_LOWER);
+                if ($val['nullable'] == '0') {
+                    $this->_add_flag($flags[$val['column_name']], 'not_null');
+                }
+                if (strpos($val['type_name'], 'identity')) {
+                    $this->_add_flag($flags[$val['column_name']], 'auto_increment');
+                }
+                if (strpos($val['type_name'], 'timestamp')) {
+                    $this->_add_flag($flags[$val['column_name']], 'timestamp');
+                }
+            }
+        }
+
+        if (array_key_exists($column, $flags)) {
+            return(implode(' ', $flags[$column]));
+        }
+        return '';
+    }
+
+    // }}}
+    // {{{ _add_flag()
+
+    /**
+     * Adds a string to the flags array if the flag is not yet in there
+     * - if there is no flag present the array is created
+     *
+     * @param array  &$array  the reference to the flag-array
+     * @param string $value   the flag value
+     *
+     * @return void
+     *
+     * @access private
+     * @author Joern Barthel <j_barthel@web.de>
+     */
+    function _add_flag(&$array, $value)
+    {
+        if (!is_array($array)) {
+            $array = array($value);
+        } elseif (!in_array($value, $array)) {
+            array_push($array, $value);
+        }
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return "SELECT name FROM sysobjects WHERE type = 'U'"
+                       . ' ORDER BY name';
+            case 'views':
+                return "SELECT name FROM sysobjects WHERE type = 'V'";
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>