| 1 | #!/usr/bin/perl -w
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| 2 | #
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| 3 | # Guest Additions X11 config update script for X.org 1.5
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| 4 | #
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| 5 | # Copyright (C) 2006-2010 Oracle Corporation
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| 6 | #
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| 7 | # This file is part of VirtualBox Open Source Edition (OSE), as
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| 8 | # available from http://www.virtualbox.org. This file is free software;
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| 9 | # you can redistribute it and/or modify it under the terms of the GNU
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| 10 | # General Public License (GPL) as published by the Free Software
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| 11 | # Foundation, in version 2 as it comes in the "COPYING" file of the
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| 12 | # VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 13 | # hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 14 | #
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| 15 |
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| 16 | # What this script does: X.org 1.5 introduces full hardware autodetection
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| 17 | # and no longer requires the user to provide an X.org configuration file.
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| 18 | # However, if such a file is provided, it will override autodetection of
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| 19 | # the graphics card (not of vboxmouse as far as I can see). Although this
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| 20 | # would normally be the user's business, at least Fedora 9 still generates
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| 21 | # a configuration file by default, so we have to rewrite it if we want
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| 22 | # the additions to work on a default guest installation. So we simply go
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| 23 | # through any configuration files we may find on the system and replace
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| 24 | # references to VESA or framebuffer drivers (which might be autodetected
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| 25 | # for use on a VirtualBox guest) and replace them with vboxvideo.
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| 26 |
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| 27 | use File::Copy;
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| 28 |
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| 29 | my $temp="/tmp/xorg.conf";
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| 30 | # The list of possible names of X.org configuration files
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| 31 | my @cfg_files = ("/etc/X11/xorg.conf-4", "/etc/X11/xorg.conf", "/etc/X11/.xorg.conf", "/etc/xorg.conf",
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| 32 | "/usr/etc/X11/xorg.conf-4", "/usr/etc/X11/xorg.conf", "/usr/lib/X11/xorg.conf-4",
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| 33 | "/usr/lib/X11/xorg.conf");
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| 34 | my $CFG;
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| 35 | my $TMP;
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| 36 |
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| 37 | # Subroutine to roll back after a partial installation
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| 38 | sub do_fail {
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| 39 | foreach $cfg (@cfg_files) {
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| 40 | move $cfg.".vbox", $cfg;
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| 41 | unlink $cfg.".vbox";
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| 42 | }
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| 43 | die $1;
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| 44 | }
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| 45 |
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| 46 | # Perform the substitution on any configuration file we may find.
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| 47 | foreach $cfg (@cfg_files) {
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| 48 |
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| 49 | if (open(CFG, $cfg)) {
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| 50 | open(TMP, ">$temp")
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| 51 | or &do_fail("Can't create $TMP: $!\n");
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| 52 |
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| 53 | while (defined ($line = <CFG>)) {
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| 54 | if ($line =~ /^\s*Section\s*"([a-zA-Z]+)"/i) {
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| 55 | my $section = lc($1);
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| 56 | if ($section eq "device") {
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| 57 | $in_section = 1;
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| 58 | }
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| 59 | } else {
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| 60 | if ($line =~ /^\s*EndSection/i) {
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| 61 | $in_section = 0;
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| 62 | }
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| 63 | }
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| 64 |
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| 65 | if ($in_section) {
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| 66 | if ($line =~ /^\s*driver\s+\"(fbdev|vga|vesa|vboxvideo|ChangeMe)\"/i) {
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| 67 | $line =~ s/(fbdev|vga|vesa|vboxvideo|ChangeMe)/vboxvideo/i;
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| 68 | }
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| 69 | }
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| 70 | print TMP $line;
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| 71 | }
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| 72 | close(TMP);
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| 73 |
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| 74 | # We do not overwrite existing $cfg.".vbox" files because that will
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| 75 | # likely ruin any future attempts to uninstall the additions
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| 76 | copy $cfg, $cfg.".bak";
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| 77 | if (! -e $cfg.".vbox") {
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| 78 | rename $cfg, $cfg.".vbox";
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| 79 | }
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| 80 | copy $temp, $cfg
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| 81 | or &do_fail("Could not overwrite configuration file $cfg! Exiting...");
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| 82 | unlink $temp;
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| 83 | }
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| 84 | }
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