685 lines
19 KiB
PHP
685 lines
19 KiB
PHP
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<?php // -*- Mode: PHP; -*-
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/**
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* Copyright (C) 2009 Marty Connor <mdc@etherboot.org>.
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* Copyright (C) 2009 Entity Cyber, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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// Include table of user-configurable iPXE options
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require_once "flag-table.php";
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// Include user-shadowable globals
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require_once "globals.php";
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// Allow user to shadow globals
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if ( is_file ( 'local-config.php' ) ) {
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include_once "local-config.php";
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}
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////
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// General utility functions
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////
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/**
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* Remove undesirable characters from a given string
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*
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* Certain characters have the potential to be used for
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* malicious purposes by web-based attackers. This routine
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* filters out such characters.
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*
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* @param string $s supplied string
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*
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* @return string returned string with unwanted characters
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* removed
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*/
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function cleanstring ( $s )
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{
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$len = strlen ( $s );
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if ( $len > 80 ) {
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$s = substr ( $s, 0, 80 );
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}
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$s = trim ( $s );
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$pos = 0;
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$result = "";
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while ( $pos < $len ) {
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$ltr = ord ( ucfirst ( $s[$pos] ) );
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if ( ( $ltr >= ord ( "A" ) ) && ( $ltr <= ord ( "Z" ) ) ||
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( $ltr >= ord ( "0" ) ) && ( $ltr <= ord ( "9" ) ) ||
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( $ltr == ord ( "." ) ) && ( strlen ( $result ) > 0 ) ||
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( $ltr == ord ( "_" ) ) ||
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( $ltr == ord ( "+" ) ) ||
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( $ltr == ord ( ":" ) ) ||
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( $ltr == ord ( "/" ) ) ||
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( $ltr == ord ( "-" ) ) ) {
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$result .= $s[$pos];
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}
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$pos++;
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}
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return $result;
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}
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/**
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* Return URL of the currently running script, minus the filename
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*
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* @return string the URL of the currently running script, minus the filename
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*/
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function curDirURL ()
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{
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$dir = dirname ( $_SERVER['PHP_SELF'] );
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if ( $dir == "." || $dir == "/" ) {
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$dir = "";
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}
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$isHTTPS = ( isset ( $_SERVER["HTTPS"] ) && $_SERVER["HTTPS"] == "on" );
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$port = ( isset($_SERVER["SERVER_PORT"] ) &&
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( ( !$isHTTPS && $_SERVER["SERVER_PORT"] != "80" ) ||
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( $isHTTPS && $_SERVER["SERVER_PORT"] != "443" ) ) );
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$port = ( $port ) ? ':' . $_SERVER["SERVER_PORT"] : '';
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$dest = ( $isHTTPS ? 'https://' : 'http://' ) .
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$_SERVER["SERVER_NAME"] . $dir . "/";
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return $dest;
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}
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/**
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* Extract NIC families and associated ROM PCI IDs from the src/bin/NIC file.
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*
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* $src_dir must contain the path of the iPXE src directory for this build
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*
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* @return array[0] array $new_nics
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* @return array[1] array $roms
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*/
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function parse_nic_file ()
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{
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global $src_dir;
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$fd = fopen ( "$src_dir/bin/NIC", "r" );
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if ( ! $fd ) {
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die ( "Missing src/bin/NIC file. 'make bin/NIC'" );
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}
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$nics = array ();
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$roms = array ();
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$nic = "";
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while ( !feof ( $fd ) ) {
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$line = trim ( fgets ( $fd, 200 ) );
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$first_eight_chars = substr ( $line, 0, 8 );
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settype ( $first_eight_chars, "string" );
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if ( strpos ( $first_eight_chars, "family" ) === 0 ) {
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// get pathname of NIC driver
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#list ( $dummy, $nic ) = split( "[ \t]+", $line );
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list ( $dummy, $nic ) = explode("\t", $line);
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settype ( $nic, "string" );
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// extract filename name of driver from pathname
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$nic = substr ( $nic, strrpos ( $nic, "/" ) + 1,
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strlen ( $nic ) - strrpos ( $nic, "/" ) + 1 );
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$nics[$nic] = $nic;
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// For each ISA NIC, there can only be one ROM variant
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$roms[$nic] = $nic;
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}
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// If the first 8 digits of the line are hex digits
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// add this rom to the current nic family.
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if ( ( strlen ( $first_eight_chars ) == 8 )
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&& ( ctype_xdigit ( $first_eight_chars ) )
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&& ( $nic != "" ) ) {
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$roms[$first_eight_chars] = $nic;
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}
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}
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fclose ( $fd );
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// put most NICs in nice alpha order for menu
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ksort ( $nics );
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// add special cases to the top
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$new_nics = array ( "all-drivers" => "ipxe",
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"undionly" => "undionly",
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"undi" => "undi",
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);
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foreach ( $nics as $key => $value ) {
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// skip the undi driver
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if ( $key != "undi" ) {
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$new_nics[$key] = $value;
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}
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}
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return array ( $new_nics, $roms );
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}
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////
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// HTML form utility functions
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////
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/**
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* Return html code to create hidden form input fields
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*
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* @param string $flag name of form variable to set
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* @param string $value value to give form variable
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*
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* @return string html code for given hidden form input field
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*/
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function hidden ( $flag, $value )
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{
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$value = htmlentities ( $value );
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return "<input type=\"hidden\" value=\"$value\" name=\"$flag\"></input>";
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}
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/**
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* Return html code to create checkbox form input fields
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*
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* @param string $flag name of form variable to set
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* @param string $value "on" means box should be checked
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*
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* @return string html code for given hidden form input field
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*/
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function checkbox ( $flag, $value )
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{
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return "<input type=\"checkbox\" value=\"on\" name=\"$flag\"" .
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($value == "on" ? " checked>" : ">" );
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}
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/**
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* Return html code to create text form input fields
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*
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* @param string $flag name of form variable to set
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* @param string $value initial contents of field
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* @param string $size size in characters of text box
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*
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* @return string html code for given text input field
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*/
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function textbox ( $flag, $value, $size )
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{
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$value = htmlentities ( $value );
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return "<input type=\"text\" size=\"$size\" value=\"$value\" name=\"$flag\">";
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}
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/**
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* Return html code to create textarea form fields
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*
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* @param string $flag name of form variable to set
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* @param string $value initial contents of textarea
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* @param string $rows height of text area in rows
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* @param string $cols width of text area in columns
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*
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* @return string html code for given textarea input field
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*/
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function textarea ( $flag, $value, $rows, $cols )
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{
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$value = htmlentities ( $value );
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return "<textarea name=\"$flag\" rows=\"$rows\" cols=\"$cols\">"
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. $value . "</textarea>";
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}
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/**
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* Return html code to create select (menu) form fields
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*
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* Use array of strings as menu choices
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*
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* @param string $flag name of form variable to set
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* @param array $options array of strings representing choices
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* @param string $value value of choice to select in menu
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*
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* @return string html code for given select (menu) input field
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*/
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function menubox ( $name, $options, $value )
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{
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$s="<select name=\"$name\">";
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foreach ( $options as $ignore => $option ) {
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if ( !$value ) $value = $option;
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$s .= "<option" . ( $option == $value ? " selected>" : ">" ) .
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htmlentities ( $option ) . "</option>";
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}
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return $s . "</select>";
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}
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/**
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* Return html code to create select (menu) form fields
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*
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* Use indices of array of strings as menu choices rather than
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* the values pointed to by the indicies.
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*
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* @param string $flag name of form variable to set
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* @param array $options array of strings representing choices
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* @param string $value value of choice to select in menu
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*
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* @return string html code for given select (menu) input field
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*/
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function keys_menubox ( $name, $options, $value )
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{
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$s="<select name=\"$name\">";
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foreach ( $options as $option => $ignore ) {
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if ( !$value ) $value = $option;
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$s .= "<option" . ( $option == $value ? " selected>" : ">" ) .
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htmlentities ( $option ) . "</option>";
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}
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return $s . "</select>";
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}
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////
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// Flag (compile option) handling functions
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////
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/**
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* Return default compile options (flags)
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*
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* Initial compile options are in a global called $flag_table.
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* Create and return an array containing the ones we want.
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*
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* @return array default compile options (flags)
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*/
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function default_flags ()
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{
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global $flag_table;
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$flags = array ();
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foreach ( $flag_table as $key => $props ) {
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$flag = $props["flag"];
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$type = $props["type"];
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// Fields like headers have no "value" property
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if ( isset ( $props["value"] ) ) {
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$flags[$flag] = $props["value"];
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}
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}
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return $flags;
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}
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/**
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* Return combination of default and user compile options (flags)
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*
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* Initial compile options are in a global called $flag_table.
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* Compile options may have been changed via form input. We return
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* an array with either the default value of each option or a user
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* supplied value from form input.
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*
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* @return array combined default and user supplied compile options (flags)
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*/
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function get_flags ()
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{
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global $flag_table;
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$flags = default_flags ();
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if ( ! isset ( $_POST["use_flags"] ) )
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return $flags;
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foreach ( $flag_table as $key => $props ) {
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$flag = $props["flag"];
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$type = $props["type"];
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if ( isset ( $_POST["$flag"] ) ) {
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$flags[$flag] = $_POST["$flag"];
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if ( $type == "integer-hex" ) {
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if ( strtolower ( substr ( $flags[$flag], 0, 2 ) ) != "0x" ) {
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$flags[$flag] = "0x" . $flags[$flag];
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}
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}
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} else if ( $type == "on/off" ) {
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// Unchecked checkboxes don't pass any POST value
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// so we must check for them specially. At this
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// point we know that there is no $_POST value set
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// for this option. If it is a checkbox, this means
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// it is unchecked, so record that in $flags so we
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// can later generate an #undef for this option.
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$flags[$flag] = "off";
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}
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}
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return $flags;
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}
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/**
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* Output given value in appropriate format for iPXE config file
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*
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* iPXE config/*.h files use C pre-processor syntax. Output the given
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* compile option in a format appropriate to its type
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*
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* @param string $key index into $flag_table for given compile option
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* @param string $value value we wish to set compile option to
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*
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* @return string code to set compile option to given value
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*/
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function pprint_flag ( $key, $value )
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{
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global $flag_table;
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// Determine type of given compile option (flag)
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$type = $flag_table[$key]["type"];
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$s = "";
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if ( $type == "on/off" && $value == "on" ) {
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$s = "#define $key";
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} else if ( $type == "on/off" && $value != "on" ) {
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$s = "#undef $key";
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} else if ( $type == "string" ) {
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$s = ( "#define $key \"" . cleanstring ( $value ) . "\"" );
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|
|
} else if ($type == "qstring" ) {
|
||
|
|
$s = ( "#define $key \\\"" . cleanstring ( $value ) . "\\\"" );
|
||
|
|
} else {
|
||
|
|
$s = "#define $key " . cleanstring ( $value );
|
||
|
|
}
|
||
|
|
|
||
|
|
return $s;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Output html code to display all compile options as a table
|
||
|
|
*
|
||
|
|
* @param array $flags array of compile options
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
function echo_flags ( $flags )
|
||
|
|
{
|
||
|
|
global $flag_table;
|
||
|
|
|
||
|
|
echo "<table>\n";
|
||
|
|
|
||
|
|
foreach ( $flag_table as $key => $props ) {
|
||
|
|
|
||
|
|
// Hide parameters from users that should not be changed.
|
||
|
|
$hide_from_user = isset ( $props["hide_from_user"] ) ? $props["hide_from_user"] : "no";
|
||
|
|
|
||
|
|
$flag = $props["flag"];
|
||
|
|
$type = $props["type"];
|
||
|
|
|
||
|
|
$value = isset ( $flags[$flag] ) ? $flags[$flag] : '';
|
||
|
|
|
||
|
|
if ( $hide_from_user == "yes" ) {
|
||
|
|
|
||
|
|
// Hidden flags cannot not be set by the user. We use hidden form
|
||
|
|
// fields to keep them at their default values.
|
||
|
|
if ( $type != "header" ) {
|
||
|
|
echo hidden ( $flag, $value );
|
||
|
|
}
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
// Flag (iPXE compile option) should be displayed to user
|
||
|
|
|
||
|
|
if ( $type == "header" ) {
|
||
|
|
|
||
|
|
$label = $props["label"];
|
||
|
|
echo "<td colspan=2><hr><h3>$label</h3><hr></td>";
|
||
|
|
|
||
|
|
} else if ($type == "on/off" ) {
|
||
|
|
|
||
|
|
echo "<td>", checkbox ( $flag, $value ), "</td><td><strong>$flag</strong></td>";
|
||
|
|
|
||
|
|
} else { // don't display checkbox for non-on/off flags
|
||
|
|
|
||
|
|
echo "<td> </td><td><strong>$flag: </strong>";
|
||
|
|
|
||
|
|
if ($type == "choice" ) {
|
||
|
|
$options = $props["options"];
|
||
|
|
echo menubox($flag, $options, $value);
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
echo textbox($flag, $value, ($type == "integer" ||
|
||
|
|
$type == "integer-hex"
|
||
|
|
? 7 : 25));
|
||
|
|
}
|
||
|
|
echo "</td>";
|
||
|
|
}
|
||
|
|
echo "</tr>\n";
|
||
|
|
|
||
|
|
if ( $type != "header" ) {
|
||
|
|
echo "<tr><td> </td>";
|
||
|
|
echo "<td>\n";
|
||
|
|
if ( is_file ( "doc/$flag.html" ) ) {
|
||
|
|
include_once "doc/$flag.html";
|
||
|
|
}
|
||
|
|
echo "\n</td></tr>\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
echo "</table>";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return an array of configuration sections used in all compile options
|
||
|
|
*
|
||
|
|
* $flag_table, the global list of compile options contains a 'cfgsec'
|
||
|
|
* property for each flag we are interested in. We return a list of
|
||
|
|
* all the unique cfgsec options we find in $flag_table.
|
||
|
|
*
|
||
|
|
* @return array an array of strings representing all unique cfgsec values
|
||
|
|
* found in $flag_table
|
||
|
|
*/
|
||
|
|
function get_flag_cfgsecs ()
|
||
|
|
{
|
||
|
|
global $flag_table;
|
||
|
|
$cfgsecs = array ();
|
||
|
|
|
||
|
|
foreach ( $flag_table as $key => $props ) {
|
||
|
|
if ( isset ( $props['cfgsec'] ) ) {
|
||
|
|
$cfgsec = $props["cfgsec"];
|
||
|
|
$cfgsecs[$cfgsec] = $cfgsec;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $cfgsecs;
|
||
|
|
}
|
||
|
|
|
||
|
|
////
|
||
|
|
// File and directory handling functions
|
||
|
|
////
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a copy of a given source directory to a given destination
|
||
|
|
*
|
||
|
|
* Since we are going to modify the source directory, we create a copy
|
||
|
|
* of the directory with a unique name in the given destination directory.
|
||
|
|
* We supply a prefix for the tempnam call to prepend to the random filename
|
||
|
|
* it generates.
|
||
|
|
*
|
||
|
|
* @param string $src source directory
|
||
|
|
* @param string $dst destination directory
|
||
|
|
* @param string $prefix string to append to directory created
|
||
|
|
*
|
||
|
|
* @return string absolute path to destination directory
|
||
|
|
*/
|
||
|
|
function mktempcopy ( $src, $dst, $prefix )
|
||
|
|
{
|
||
|
|
if ( $src[0] != "/" ) {
|
||
|
|
$src = dirname ( $_SERVER['SCRIPT_FILENAME'] ) . "/" . $src;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Create a file in the given destination directory with a unique name
|
||
|
|
$dir = tempnam ( $dst, $prefix );
|
||
|
|
|
||
|
|
// Delete the file just created, since it would interfere with the copy we
|
||
|
|
// are about to do. We only care that the dir name we copy to is unique.
|
||
|
|
unlink ( $dir );
|
||
|
|
|
||
|
|
exec ( "/bin/cp -a '$src' '$dir' 2>&1", $cpytxt, $status );
|
||
|
|
|
||
|
|
if ( $status != 0 ) {
|
||
|
|
die ( "src directory copy failed!" );
|
||
|
|
}
|
||
|
|
return $dir;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Write iPXE config files based on value of given flags
|
||
|
|
*
|
||
|
|
* iPXE compile options are stored in src/config/*.h .
|
||
|
|
* We write out a config file for each set of options.
|
||
|
|
*
|
||
|
|
* @param string $config_dir directory to write .h files to
|
||
|
|
* @param array $flags array of compile options for this build
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
function write_ipxe_config_files ( $config_dir, $flags )
|
||
|
|
{
|
||
|
|
global $flag_table;
|
||
|
|
|
||
|
|
$cfgsecs = get_flag_cfgsecs ();
|
||
|
|
|
||
|
|
foreach ( $cfgsecs as $cfgsec ) {
|
||
|
|
|
||
|
|
$fname = $config_dir . "/" . $cfgsec . ".h";
|
||
|
|
|
||
|
|
$fp = fopen ( $fname, "wb" );
|
||
|
|
if ( $fp <= 0 ) {
|
||
|
|
die ( "Unable to open $fname file for output!" );
|
||
|
|
}
|
||
|
|
|
||
|
|
$ifdef_secname = "CONFIG_" . strtoupper ( $cfgsec ) . "_H";
|
||
|
|
|
||
|
|
fwrite ( $fp, "#ifndef ${ifdef_secname}\n" );
|
||
|
|
fwrite ( $fp, "#define ${ifdef_secname}\n" );
|
||
|
|
fwrite ( $fp, "#include <config/defaults.h>\n" );
|
||
|
|
|
||
|
|
foreach ( $flags as $key => $value ) {
|
||
|
|
// When the flag matches this section name, write it out
|
||
|
|
if ( $flag_table[$key]["cfgsec"] == $cfgsec ) {
|
||
|
|
fwrite ( $fp, pprint_flag ( $key, $value ) . "\n" );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fwrite ( $fp, "#endif /* ${ifdef_secname} */\n" );
|
||
|
|
fclose ( $fp );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Output a string to a file
|
||
|
|
*
|
||
|
|
* Output a given string to a given pathname. The file will be created if
|
||
|
|
* necessary, and the string will replace the file's contents in all cases.
|
||
|
|
*
|
||
|
|
* @param string $fname pathname of file to output string to
|
||
|
|
* @param string $ftext text to output to file
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
function write_file_from_string ( $fname, $ftext )
|
||
|
|
{
|
||
|
|
$fp = fopen ( $fname, "wb" );
|
||
|
|
if ( ! $fp ) {
|
||
|
|
die ( "Unable to open $fname file for output!" );
|
||
|
|
}
|
||
|
|
fwrite ( $fp, $ftext );
|
||
|
|
fclose ( $fp );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Delete a file or recursively delete a directory tree
|
||
|
|
*
|
||
|
|
* @param string $file_or_dir_name name of file or directory to delete
|
||
|
|
* @return bool Returns TRUE on success, FALSE on failure
|
||
|
|
*/
|
||
|
|
function rm_file_or_dir ( $file_or_dir_name )
|
||
|
|
{
|
||
|
|
if ( ! file_exists ( $file_or_dir_name ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( is_file ( $file_or_dir_name ) || is_link ( $file_or_dir_name ) ) {
|
||
|
|
return unlink ( $file_or_dir_name );
|
||
|
|
}
|
||
|
|
|
||
|
|
$dir = dir ( $file_or_dir_name );
|
||
|
|
while ( ( $dir_entry = $dir->read () ) !== false ) {
|
||
|
|
|
||
|
|
if ( $dir_entry == '.' || $dir_entry == '..') {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
rm_file_or_dir ( $file_or_dir_name . '/' . $dir_entry );
|
||
|
|
}
|
||
|
|
$dir->close();
|
||
|
|
|
||
|
|
return rmdir ( $file_or_dir_name );
|
||
|
|
}
|
||
|
|
|
||
|
|
////
|
||
|
|
// Debugging functions
|
||
|
|
////
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Emit html code to display given array of compile options (flags)
|
||
|
|
*
|
||
|
|
* @param array $flags array of compile options for this build
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
function show_flags ( $flags )
|
||
|
|
{
|
||
|
|
echo ( "\$flags contains " . count ( $flags ) . " elements:" . "<br>" );
|
||
|
|
|
||
|
|
foreach ( $flags as $key => $flag ) {
|
||
|
|
echo ( "\$flags[" . $key . "]=" . "\"$flag\"" . "<br>" );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Emit HTML code to display default array of compile options (flags)
|
||
|
|
*
|
||
|
|
* $flag_table contains default compile options and properties. This
|
||
|
|
* routine outputs HTML code to display all properties of $flag_table.
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
function dump_flag_table ()
|
||
|
|
{
|
||
|
|
global $flag_table;
|
||
|
|
|
||
|
|
echo ( "\$flag_table contains " . count ( $flag_table ) . " elements:" . "<br>" );
|
||
|
|
|
||
|
|
foreach ( $flag_table as $key => $props ) {
|
||
|
|
print ( "flag_table[" . $key . "] = " . "<br>" );
|
||
|
|
|
||
|
|
foreach ( $props as $key2 => $props2 ) {
|
||
|
|
print ( " " . $key2 . " = " . $props2 . "<br>" );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Parse src/bin/NIC file
|
||
|
|
list ( $nics, $roms ) = parse_nic_file ();
|
||
|
|
|
||
|
|
// For emacs:
|
||
|
|
// Local variables:
|
||
|
|
// c-basic-offset: 4
|
||
|
|
// c-indent-level: 4
|
||
|
|
// tab-width: 4
|
||
|
|
// End:
|
||
|
|
|
||
|
|
?>
|