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#!/usr/bin/env perl
###################################################
# InspIRCd Configuration Script
#
# Copyright 2002-2010 The InspIRCd Development Team
# http://wiki.inspircd.org/Credits
#
# Licensed under GPL, please see the COPYING file
# for more information
#
# $Id$
#
###################################################

BEGIN {
require 5.8.0;
}

use strict;
use warnings FATAL => qw(all);

use Data::Dumper;
BEGIN {
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Useqq = 1;
};

use File::Copy ();
use Socket;
use Cwd;
use Getopt::Long;

# Utility functions for our buildsystem
use make::utilities;
use make::configure;
use make::gnutlscert;
use make::opensslcert;

###############################################################################################
#
# NON-EDITABLE VARIABLES
#
###############################################################################################

our ($opt_use_gnutls, $opt_rebuild, $opt_use_openssl, $opt_nointeractive, $opt_ports,
    $opt_epoll, $opt_kqueue, $opt_noports, $opt_noepoll, $opt_nokqueue,
    $opt_noipv6, $opt_maxbuf, $opt_disable_debug, $opt_freebsd_port,
$opt_system, $opt_uid);

our ($opt_cc, $opt_base_dir, $opt_config_dir, $opt_module_dir, $opt_binary_dir);

sub list_extras ();

sub enable_extras (@);

sub disable_extras (@);

my @opt_enableextras;
my @opt_disableextras;

GetOptions (
'enable-gnutls' => \$opt_use_gnutls,
'rebuild' => \$opt_rebuild,
'system' => \$opt_system,
'uid=s' => \$opt_uid,
'enable-openssl' => \$opt_use_openssl,
'disable-interactive' => \$opt_nointeractive,
'enable-ports' => \$opt_ports,
'enable-epoll' => \$opt_epoll,
'enable-kqueue' => \$opt_kqueue,
'disable-ports' => \$opt_noports,
'disable-epoll' => \$opt_noepoll,
'disable-kqueue' => \$opt_nokqueue,
'disable-ipv6' => \$opt_noipv6,
'with-cc=s' => \$opt_cc,
'with-maxbuf=i' => \$opt_maxbuf,
'enable-freebsd-ports-openssl' => \$opt_freebsd_port,
'prefix=s' => \$opt_base_dir,
'config-dir=s' => \$opt_config_dir,
'module-dir=s' => \$opt_module_dir,
'binary-dir=s' => \$opt_binary_dir,
'disable-debuginfo' => sub { $opt_disable_debug = 1 },
'help' => sub { showhelp(); },
'update' => sub { update(); },
'svnupdate' => sub { svnupdate(); },
'clean' => sub { clean(); },
'list-extras' => sub { list_extras; exit 0; }, # This, --enable-extras, and --disable-extras are for non-interactive managing.
'enable-extras=s@' => \@opt_enableextras, # ^
'disable-extras=s@' => \@opt_disableextras, # ^
'generate-openssl-cert' => sub { make_openssl_cert(); exit(0); },
'generate-gnutls-cert' => sub { make_gnutls_cert(); exit(0); }
);

if (scalar(@opt_enableextras) + scalar(@opt_disableextras) > 0) {
@opt_enableextras = split /,/, join(',', @opt_enableextras);
@opt_disableextras = split /,/, join(',', @opt_disableextras);
enable_extras(@opt_enableextras);
disable_extras(@opt_disableextras);
list_extras;
print "Remember: YOU are responsible for making sure any libraries needed have been installed!\n";
exit 0;
}

our $interactive = !(
(defined $opt_base_dir) ||
(defined $opt_config_dir) ||
(defined $opt_module_dir) ||
(defined $opt_base_dir) ||
(defined $opt_binary_dir) ||
(defined $opt_nointeractive) ||
(defined $opt_cc) ||
(defined $opt_noipv6) ||
(defined $opt_kqueue) ||
(defined $opt_epoll) ||
(defined $opt_ports) ||
(defined $opt_use_openssl) ||
(defined $opt_nokqueue) ||
(defined $opt_noepoll) ||
(defined $opt_noports) ||
(defined $opt_maxbuf) ||
(defined $opt_system) ||
(defined $opt_uid) ||
(defined $opt_use_gnutls) ||
(defined $opt_freebsd_port)
);

chomp(our $topdir = getcwd());
our $this = resolve_directory($topdir); # PWD, Regardless.
our @modlist = (); # Declare for Module List..
our %config = (); # Initiate Configuration Hash..
$config{ME} = resolve_directory($topdir); # Present Working Directory

$config{BASE_DIR} = $config{ME}."/run";

if (defined $opt_base_dir) {
$config{BASE_DIR} = $opt_base_dir;
} elsif (defined $opt_system || defined $opt_uid) {
$config{BASE_DIR} = '/var/lib/inspircd';
}

if (defined $opt_system || defined $opt_uid) {
$config{UID} = $opt_uid || 'ircd';
$config{CONFIG_DIR} = '/etc/inspircd';
$config{MODULE_DIR} = '/usr/lib/inspircd';
$config{BINARY_DIR} = '/usr/sbin/';
$config{BUILD_DIR} = resolve_directory($config{ME}."/build"); # Build Directory
} else {
$config{UID} = $<;
$config{CONFIG_DIR} = resolve_directory($config{BASE_DIR}."/conf"); # Configuration Directory
$config{MODULE_DIR} = resolve_directory($config{BASE_DIR}."/modules"); # Modules Directory
$config{BINARY_DIR} = resolve_directory($config{BASE_DIR}."/bin"); # Binary Directory
$config{BUILD_DIR} = resolve_directory($config{ME}."/build"); # Build Directory
}

if (defined $opt_config_dir) {
$config{CONFIG_DIR} = $opt_config_dir;
}
if (defined $opt_module_dir) {
$config{MODULE_DIR} = $opt_module_dir;
}
if (defined $opt_binary_dir) {
$config{BINARY_DIR} = $opt_binary_dir;
}
chomp($config{HAS_GNUTLS} = `pkg-config --modversion gnutls 2>/dev/null | cut -c 1,2,3`); # GNUTLS Version.

if (defined $opt_freebsd_port)
{
chomp($config{HAS_OPENSSL} = `pkg-config --modversion openssl 2>/dev/null`);
chomp($config{HAS_OPENSSL_PORT} = `pkg-config --modversion openssl 2>/dev/null`);
$config{USE_FREEBSD_BASE_SSL} = "n";
}
else
{
if ($^O eq "freebsd")
{
# default: use base ssl
chomp($config{HAS_OPENSSL} = `openssl version | cut -d ' ' -f 2`); # OpenSSL version, freebsd specific
chomp($config{HAS_OPENSSL_PORT} = `pkg-config --modversion openssl 2>/dev/null`); # Port version, may be different
}
else
{
chomp($config{HAS_OPENSSL} = `pkg-config --modversion openssl 2>/dev/null`); # Openssl version, others
$config{HAS_OPENSSL_PORT} = "";
}
}

chomp(our $gnutls_ver = $config{HAS_GNUTLS});
chomp(our $openssl_ver = $config{HAS_OPENSSL});
$config{USE_GNUTLS} = "n";
if (defined $opt_use_gnutls)
{
$config{USE_GNUTLS} = "y"; # Use gnutls.
}
$config{USE_OPENSSL} = "n"; # Use openssl.
if (defined $opt_use_openssl)
{
$config{USE_OPENSSL} = "y";
}

if (!defined $opt_disable_debug) {
$config{OPTIMISATI} = "-g1"; # Optimisation Flag
} else {
$config{OPTIMISATI} = "-O2";
}

$config{HAS_STRLCPY} = "false"; # strlcpy Check.
$config{HAS_STDINT} = "false"; # stdint.h check
$config{USE_KQUEUE} = "y"; # kqueue enabled
if (defined $opt_nokqueue) {
$config{USE_KQUEUE} = "n";
}
$config{USE_POLL} = "y"; # poll enabled
$config{USE_EPOLL} = "y"; # epoll enabled
if (defined $opt_noepoll)
{
$config{USE_EPOLL} = "n";
}
$config{USE_PORTS} = "y"; # epoll enabled
if (defined $opt_noports)
{
$config{USE_PORTS} = "n";
}
$config{IPV6} = "y"; # IPv6 support
if (defined $opt_noipv6)
{
$config{IPV6} = "n";
}
$config{_SOMAXCONN} = SOMAXCONN; # Max connections in accept queue
$config{OSNAME} = $^O; # Operating System Name
$config{IS_DARWIN} = "NO"; # Is OSX?
$config{STARTSCRIPT} = "inspircd"; # start script?
$config{DESTINATION} = "BASE"; # Is target path.
$config{EXTRA_DIR} = ""; # Is empty.
if ($config{OSNAME} =~ /darwin/i)
{
$config{IS_DARWIN} = "YES";
$config{STARTSCRIPT} = "org.inspircd.plist"; # start script for OSX.
}
$config{CC} = "g++"; # C++ compiler
if (defined $opt_cc)
{
$config{CC} = $opt_cc;
}
our $exec = $config{CC} . " -dumpversion | cut -c 1";
chomp($config{GCCVER} = `$exec`); # Major GCC Version
$exec = $config{CC} . " -dumpversion | cut -c 3";
chomp($config{GCCMINOR} = `$exec`);
$config{MAXBUF} = "512"; # Max buffer size

if ($config{HAS_OPENSSL} =~ /^([-[:digit:].]+)([a-z])?(\-[a-z][0-9])?$/) {
$config{HAS_OPENSSL} = $1;
} else {
$config{HAS_OPENSSL} = "";
}

if (($config{GCCVER} eq "") || ($config{GCCMINOR} eq "")) {
print $config{CC} . " was not found! You require g++ (the GNU C++ compiler, part of GCC) to build InspIRCd!\n";
exit;
}

# Get and Set some important vars..
getmodules();

sub clean
{
unlink(".config.cache");
}

our ($has_epoll, $has_ports, $has_kqueue) = (0, 0, 0);

sub update
{
eval {
chomp($topdir = getcwd());
$this = resolve_directory($topdir); # PWD, Regardless.
getmodules();
# Does the cache file exist?
if (!getcache()) {
# No, No it doesn't.. *BASH*
print "You have not run ./configure before. Please do this before trying to run the update script.\n";
exit 0;
} else {
# We've Loaded the cache file and all our variables..
print "Updating files...\n";
if (defined($opt_disable_debug) && $opt_disable_debug == 1)
{
print "Disabling debug information (-g).\n";
$config{OPTIMISATI} = "";
}
$has_epoll = $config{HAS_EPOLL};
$has_ports = $config{HAS_PORTS};
$has_kqueue = $config{HAS_KQUEUE};
writefiles(1);
makecache();
print "Complete.\n";
exit;
}
};
if ($@)
{
print "Configure update failed: $@\n";
}
exit;
}

sub svnupdate
{
my $fail = 0;
open(FH,"<.svn/entries") or $fail = 1;
if ($fail) {
print "This is not an SVN copy of InspIRCd.\n";
exit 1;
}
else
{
close(FH);
}
open my $fd, "-|", "svn update";
my $configurechanged = 0; # Needs ./configure -update
my $rootincchanged = 0;
my @conflicted = ();
while (defined(my $line = <$fd>))
{
my ($action, $file);
print $line;
$line =~ m/^([ADUCG])\s+(.*)$/ or next;
($action, $file) = ($1, $2);
if ($action eq "C")
{
push @conflicted, $file;
if ($file eq "configure")
{
$configurechanged = 1;
}
elsif ($file =~ m/^\..*\.inc$/)
{
$rootincchanged = 1;
}
}
elsif ($action eq "U" || $action eq "G")
{
if ($file eq "configure")
{
$configurechanged = 1;
}
elsif ($file =~ m/^\..*\.inc$/)
{
$rootincchanged = 1;
}
}
}
unless (close $fd) # close() waits for exit and returns false if the command failed
{
if ($! == 0)
{
print STDERR "Problem updating from SVN, please check above for errors\n";
}
else
{
print STDERR "Failed to run SVN: $!\n";
}
exit 1;
}
if (scalar(@conflicted) > 0)
{
print STDERR "\e[0;33;1mERROR:\e[0m You have local modifications which conflicted with the updates from SVN\n";
print STDERR "Configure is not able to complete the update. Please resolve these conflicts, then run ./configure -update\n";
print "Conflicted files: " . join ", ", @conflicted . "\n";
exit 1;
}
if ($configurechanged)
{
system("perl configure -update");
}
else
{
print "No need to update Makefiles.\n";
}
if (defined $opt_rebuild) {
system("make install");
}
exit;
}

sub test_compile {
my $feature = shift;
my $fail = 0;
$fail ||= system "$config{CC} -o test_$feature make/check_$feature.cpp >/dev/null 2>&1";
$fail ||= system "./test_$feature";
unlink "test_$feature";
return !$fail;
}

print "Running non-interactive configure...\n" unless $interactive;
print "Checking for cache from previous configure... ";
print ((!getcache()) ? "not found\n" : "found\n");
$config{SYSTEM} = lc $^O;
print "Checking operating system version... $config{SYSTEM}\n";

$exec = $config{CC} . " -dumpversion | cut -c 1";
chomp($config{GCCVER} = `$exec`); # Major GCC Version
$exec = $config{CC} . " -dumpversion | cut -c 3";
chomp($config{GCCMINOR} = `$exec`);

printf "Checking if stdint.h exists... ";
$config{HAS_STDINT} = "true";
our $fail = 0;
open(STDINT, "</usr/include/stdint.h") or $config{HAS_STDINT} = "false";
if ($config{HAS_STDINT} eq "true") {
close(STDINT);
}
print "yes\n" if $config{HAS_STDINT} eq "true";
print "no\n" if $config{HAS_STDINT} eq "false";

printf "Checking if strlcpy exists... ";
# Perform the strlcpy() test..
$config{HAS_STRLCPY} = "false";
$fail = 0;
open(STRLCPY, "</usr/include/string.h") or $fail = 1;
if (!$fail) {
while (defined(my $line = <STRLCPY>)) {
chomp($line);
# try and find the delcaration of:
# size_t strlcpy(...)
if ($line =~ /size_t(\0x9|\s)+strlcpy/) {
$config{HAS_STRLCPY} = "true";
}
}
close(STRLCPY);
}
print "yes\n" if $config{HAS_STRLCPY} eq "true";
print "no\n" if $config{HAS_STRLCPY} eq "false";

printf "Checking if kqueue exists... ";
$has_kqueue = 0;
$fail = 0;
open(KQUEUE, "</usr/include/sys/event.h") or $fail = 1;
if (!$fail) {
while (defined(my $line = <KQUEUE>)) {
chomp($line);
# try and find the delcaration of:
# int kqueue(void);
if ($line =~ /int(\0x9|\s)+kqueue/) {
$has_kqueue = 1;
}
}
close(KQUEUE);
}
print "yes\n" if $has_kqueue == 1;
print "no\n" if $has_kqueue == 0;

printf "Checking for epoll support... ";
$has_epoll = test_compile('epoll');
print $has_epoll ? "yes\n" : "no\n";

printf "Checking for eventfd support... ";
$config{HAS_EVENTFD} = test_compile('eventfd') ? 'true' : 'false';
print $config{HAS_EVENTFD} eq 'true' ? "yes\n" : "no\n";

printf "Checking if Solaris I/O completion ports are available... ";
$has_ports = 0;
our $system = `uname -s`;
chomp ($system);
$has_ports = 1 if ($system eq "SunOS");

if ($has_ports) {
my $kernel = `uname -r`;
chomp($kernel);
if (($kernel !~ /^5\.1./)) {
$has_ports = 0;
}
}
print "yes\n" if $has_ports == 1;
print "no\n" if $has_ports == 0;

$config{HAS_EPOLL} = $has_epoll;
$config{HAS_KQUEUE} = $has_kqueue;

printf "Checking for libgnutls... ";
if (defined($config{HAS_GNUTLS}) && (($config{HAS_GNUTLS}) || ($config{HAS_GNUTLS} eq "y"))) {
if (defined($gnutls_ver) && ($gnutls_ver ne "")) {
print "yes\n";
$config{HAS_GNUTLS} = "y";
} else {
print "no\n";
$config{HAS_GNUTLS} = "n";
}
} else {
print "no\n";
$config{HAS_GNUTLS} = "n";
}

printf "Checking for openssl... ";
if (defined($config{HAS_OPENSSL}) && (($config{HAS_OPENSSL}) || ($config{HAS_OPENSSL} eq "y"))) {
if (defined($openssl_ver) && ($openssl_ver ne "")) {
print "yes\n";
$config{HAS_OPENSSL} = "y";
} else {
print "no\n";
$config{HAS_OPENSSL} = "n";
}
} else {
print "no\n";
$config{HAS_OPENSSL} = "n";
}

printf "Checking if you are running an ancient, unsupported OS... ";
if ($config{OSNAME} =~ /FreeBSD/i)
{
my $version = `uname -r`;
if ($version =~ /^4\./)
{
print "yes.\n";
print "FreeBSD 4.x is no longer supported. By ANYONE.\n";
print "To build, you will need to add the following to CXXFLAGS:\n";
print "\t-L/usr/local/lib -lgnugetopt -DHAVE_DECL_GETOPT=1\n";
  }
else
{
print "no ($version)\n";
}
}
else
{
print "no ($config{OSNAME})\n";
}

################################################################################
# BEGIN INTERACTIVE PART #
################################################################################

# Clear the Screen..
if ($interactive)
{
print "\e[2J\e[0G\e[0d"; # J = Erase in Display, 2 = Entire Screen, (G, d) = Move cursor to (..,..)
my $wholeos = $^O;

my $rev = getrevision();
# Display Introduction Message..
print <<"STOP" ;
Welcome to the \e[1mInspIRCd\e[0m Configuration program! (\e[1minteractive mode\e[0m)
\e[1mPackage maintainers: Type ./configure --help for non-interactive help\e[0m

*** If you are unsure of any of these values, leave it blank for ***
*** standard settings that will work, and your server will run ***
*** using them. Please consult your IRC network admin if in doubt. ***

Press \e[1m<RETURN>\e[0m to accept the default for any option, or enter
a new value. Please note: You will \e[1mHAVE\e[0m to read the docs
dir, otherwise you won't have a config file!

Your operating system is: \e[1;32m$config{OSNAME}\e[0m ($wholeos)
Your InspIRCd revision ID is \e[1;32mr$rev\e[0m
STOP
if ($rev eq "r0") {
print " (Non-SVN build)";
}
print ".\n\n";

$config{CHANGE_COMPILER} = "n";
print "I have detected the following compiler: \e[1;32m$config{CC}\e[0m (version \e[1;32m$config{GCCVER}.$config{GCCMINOR}\e[0m)\n";

while (($config{GCCVER} < 3) || ($config{GCCVER} eq "")) {
print "\e[1;32mIMPORTANT!\e[0m A GCC 2.x compiler has been detected, and
should NOT be used. You should probably specify a newer compiler.\n\n";
yesno('CHANGE_COMPILER',"Do you want to change the compiler?");
if ($config{CHANGE_COMPILER} =~ /y/i) {
print "What command do you want to use to invoke your compiler?\n";
print "[\e[1;32m$config{CC}\e[0m] -> ";
chomp($config{CC} = <STDIN>);
if ($config{CC} eq "") {
$config{CC} = "g++";
}
chomp(my $foo = `$config{CC} -dumpversion | cut -c 1`);
if ($foo ne "") {
chomp($config{GCCVER} = `$config{CC} -dumpversion | cut -c 1`); # we must redo these if we change compilers
chomp($config{GCCMINOR} = `$config{CC} -dumpversion | cut -c 3`);
print "Queried compiler: \e[1;32m$config{CC}\e[0m (version \e[1;32m$config{GCCVER}.$config{GCCMINOR}\e[0m)\n";
if ($config{GCCVER} < 3) {
print "\e[1;32mGCC 2.x WILL NOT WORK!\e[0m. Let's try that again, shall we?\n";
}
}
else {
print "\e[1;32mWARNING!\e[0m Could not execute the compiler you specified. You may want to try again.\n";
}
}
}

print "\n";

# Directory Settings..
my $tmpbase = $config{BASE_DIR};
dir_check("do you wish to install the InspIRCd base", "BASE_DIR");
if ($tmpbase ne $config{BASE_DIR}) {
$config{CONFIG_DIR} = resolve_directory($config{BASE_DIR}."/conf"); # Configuration Dir
$config{MODULE_DIR} = resolve_directory($config{BASE_DIR}."/modules"); # Modules Directory
$config{BINARY_DIR} = resolve_directory($config{BASE_DIR}."/bin"); # Binary Directory
}

dir_check("are the configuration files", "CONFIG_DIR");
dir_check("are the modules to be compiled to", "MODULE_DIR");
dir_check("is the IRCd binary to be placed", "BINARY_DIR");
dir_check("do you want the build to take place", "BUILD_DIR");

my $chose_hiperf = 0;
if ($has_kqueue) {
yesno('USE_KQUEUE',"You are running a BSD operating system, and kqueue\nwas detected. Would you like to enable kqueue support?\nThis is likely to increase performance.\nIf you are unsure, answer yes.\n\nEnable kqueue?");
print "\n";
if ($config{USE_KQUEUE} eq "y") {
$chose_hiperf = 1;
}
}
if ($has_epoll) {
yesno('USE_EPOLL',"You are running a Linux 2.6+ operating system, and epoll\nwas detected. Would you like to enable epoll support?\nThis is likely to increase performance.\nIf you are unsure, answer yes.\n\nEnable epoll?");
print "\n";
if ($config{USE_EPOLL} eq "y") {
$chose_hiperf = 1;
}
}
if ($has_ports) {
yesno('USE_PORTS',"You are running Solaris 10.\nWould you like to enable I/O completion ports support?\nThis is likely to increase performance.\nIf you are unsure, answer yes.\n\nEnable support for I/O completion ports?");
print "\n";
if ($config{USE_PORTS} eq "y") {
$chose_hiperf = 1;
}
}

if (!$chose_hiperf) {
yesno('USE_POLL', "Would you like to use poll?\n This is likely to increase performance.\nIf you are unsure, answer yes.\n\nEnable poll?");
if ($config{USE_POLL} ne "y")
{
print "No high-performance socket engines are available, or you chose\n";
print "not to enable one. Defaulting to select() engine.\n\n";
}
}

yesno('IPV6',"Would you like to build InspIRCd with IPv6 support?\nYou can still use IPv4 addresses in your port bindings.\n\nEnable IPv6?");
print "\n";

$config{USE_FREEBSD_BASE_SSL} = "n";
$config{USE_FREEBSD_PORTS_SSL} = "n";
if ($config{HAS_OPENSSL_PORT} ne "")
{
$config{USE_FREEBSD_PORTS_SSL} = "y";
print "I have detected the OpenSSL FreeBSD port installed on your system,\n";
print "version \e[1;32m".$config{HAS_OPENSSL_PORT}."\e[0m. Your base system OpenSSL is version \e[1;32m".$openssl_ver."\e[0m.\n\n";
yesno('USE_FREEBSD_PORTS_SSL', "Do you want to use the FreeBSD ports version?");
print "\n";
$config{USE_FREEBSD_BASE_SSL} = "y" if ($config{USE_FREEBSD_PORTS_SSL} eq "n");

if ($config{USE_FREEBSD_BASE_SSL} eq "n")
{
# update to port version
$openssl_ver = $config{HAS_OPENSSL_PORT};
}
}
else
{
$config{USE_FREEBSD_BASE_SSL} = "y" if ($^O eq "freebsd");
}

$config{USE_SSL} = "n";
$config{MODUPDATE} = 'n';

if ($config{HAS_GNUTLS} eq "y" || $config{HAS_OPENSSL} eq "y")
{
print "Detected GnuTLS version: \e[1;32m" . $gnutls_ver . "\e[0m\n";
print "Detected OpenSSL version: \e[1;32m" . $openssl_ver . "\e[0m\n\n";

yesno('USE_SSL', "One or more SSL libraries detected. Would you like to enable SSL support?");
if ($config{USE_SSL} eq "y")
{
if ($config{HAS_GNUTLS} eq "y")
{
yesno('USE_GNUTLS',"Would you like to enable SSL with m_ssl_gnutls? (recommended)");
if ($config{USE_GNUTLS} eq "y")
{
print "\nUsing GnuTLS SSL module.\n";
}
}

if ($config{HAS_OPENSSL} eq "y")
{
yesno('USE_OPENSSL', "Would you like to enable SSL with m_ssl_openssl?");
if ($config{USE_OPENSSL} eq "y")
{
print "\nUsing OpenSSL SSL module.\nYou will get better performance if you move to GnuTLS in the future.\n";
}
}
}
}
else
{
print "\nCould not detect OpenSSL or GnuTLS. Make sure pkg-config is installed if\n";
print "you intend to use OpenSSL, or that GnuTLS is in your path if you intend\nto use GnuTLS.\n\n";
}

yesno('MODUPDATE',"Would you like to check for updates to third-party modules?");
print "\n";
if ($config{MODUPDATE} eq "y") {
print "Checking for upgrades to extra and third party modules... ";
system "./modulemanager upgrade";
}
}

dumphash();

if (($config{USE_GNUTLS} eq "y") && ($config{HAS_GNUTLS} ne "y"))
{
print "Sorry, but i couldn't detect gnutls. Make sure gnutls-config is in your path.\n";
exit(0);
}
if (($config{USE_OPENSSL} eq "y") && ($config{HAS_OPENSSL} ne "y"))
{
print "Sorry, but i couldn't detect openssl. Make sure openssl is in your path.\n";
exit(0);
}
our $failed = 0;

$config{CERTGEN} ||= 'y';
yesno('CERTGEN',"Would you like generate SSL certificates now?") if ($interactive && ($config{USE_GNUTLS} eq "y" || $config{USE_OPENSSL} eq "y"));

if ($config{USE_GNUTLS} eq "y") {
unless (-r "src/modules/m_ssl_gnutls.cpp") {
print "Symlinking src/modules/m_ssl_gnutls.cpp from extra/\n";
symlink "extra/m_ssl_gnutls.cpp", "src/modules/m_ssl_gnutls.cpp" or print STDERR "Symlink failed: $!";
}
if ($interactive && $config{CERTGEN} eq 'y')
{
unless (-r "$config{CONFIG_DIR}/key.pem" && -r "$config{CONFIG_DIR}/cert.pem") {
print "SSL Certificates Not found, Generating.. \n\n
*************************************************************
* Generating the Private Key may take some time, go grab a *
* Coffee. Even better, to generate some more entropy if it *
* is taking a while, open another console and type du / a *
* few times and get that HD going :) Then answer the *
* Questions which follow. If you are unsure, just hit enter *
*************************************************************\n\n";
$failed = make_gnutls_cert();
if ($failed) {
print "\n\e[1;32mCertificate generation failed!\e[0m\n\n";
} else {
print "\nCertificate generation complete, copying to config directory... ";
File::Copy::move("key.pem", "$config{CONFIG_DIR}/key.pem") or print STDERR "Could not copy key.pem!\n";
File::Copy::move("cert.pem", "$config{CONFIG_DIR}/cert.pem") or print STDERR "Could not copy cert.pem!\n";
print "Done.\n\n";
}
}
else {
print "SSL Certificates found, skipping.\n\n";
}
}
else
{
print "Skipping SSL certificate generation\nin non-interactive mode.\n\n";
}
}

if ($config{USE_OPENSSL} eq "y") {
unless (-r "src/modules/m_ssl_openssl.cpp") {
print "Symlinking src/modules/m_ssl_openssl.cpp from extra/\n";
symlink "extra/m_ssl_openssl.cpp", "src/modules/m_ssl_openssl.cpp" or print STDERR "Symlink failed: $!";
}
$failed = 0;
if ($interactive && $config{CERTGEN} eq 'y')
{
unless (-r "$config{CONFIG_DIR}/key.pem" && -r "$config{CONFIG_DIR}/cert.pem") {
print "SSL Certificates Not found, Generating.. \n\n
*************************************************************
* Generating the certificates may take some time, go grab a *
* coffee, or something. *
*************************************************************\n\n";
make_openssl_cert();
print "\nCertificate generation complete, copying to config directory... ";
File::Copy::move("key.pem", "$config{CONFIG_DIR}/key.pem") or print STDERR "Could not copy key.pem!\n";
File::Copy::move("cert.pem", "$config{CONFIG_DIR}/cert.pem") or print STDERR "Could not copy cert.pem!\n";
File::Copy::move("dhparams.pem", "$config{CONFIG_DIR}/dhparams.pem") or print STDERR "Could not copy dhparams.pem!\n";
print "Done.\n\n";
} else {
print "SSL Certificates found, skipping.\n\n"
}
}
else
{
print "Skipping SSL certificate generation\nin non-interactive mode.\n\n";
}
}
if (($config{USE_GNUTLS} eq "n") && ($config{USE_OPENSSL} eq "n")) {
print "Skipping SSL Certificate generation, SSL support is not available.\n\n";
}

depcheck();
writefiles(1);
makecache();

print "\n\n";
print "To build your server with these settings, please run '\e[1;32mmake\e[0m' now.\n";
if (($config{USE_GNUTLS} eq "y") || ($config{USE_OPENSSL} eq "y")) {
print "Please note: for \e[1;32mSSL support\e[0m you will need to load required\n";
print "modules in your config. This configure script has added those modules to the\n";
print "build process. For more info please refer to:\n";
print "\e[1;32mhttp://wiki.inspircd.org/Installation_From_Tarball\e[0m\n";
}
print "*** \e[1;32mRemember to edit your configuration files!!!\e[0m ***\n\n\n";
if (($config{OSNAME} eq "OpenBSD") && ($config{CC} ne "eg++")) {
print "\e[1;32mWARNING!\e[0m You are running OpenBSD but you are using the base gcc package\nrather than eg++. This compile will most likely fail, but i'm letting you\ngo ahead with it anyway, just in case i'm wrong :-)\n";
}

if ($config{GCCVER} < "3") {
print <<FOO2;
\e[1;32mWARNING!\e[0m You are attempting to compile InspIRCd on GCC 2.x!
GCC 2.x series compilers only had partial (read as broken) C++ support, and
your compile will most likely fail horribly! If you have any problems, do NOT
report them to the bugtracker or forums without first upgrading your compiler
to a newer 3.x or 4.x (or whatever is available currently) version.
FOO2
}

################################################################################
# HELPER FUNCTIONS #
################################################################################
sub getcache {
# Retrieves the .config.cache file, and loads values into the main config hash.
open(CACHE, ".config.cache") or return 0;
while (<CACHE>) {
chomp;
# Ignore Blank lines, and comments..
next if /^\s*$/;
next if /^\s*#/;
my ($key, $value) = split("=", $_, 2);
$value =~ /^\"(.*)\"$/;
# Do something with data here!
$config{$key} = $1;
}
close(CACHE);
return 1;
}

sub makecache {
# Dump the contents of %config
print "Writing \e[1;32mcache file\e[0m for future ./configures ...\n";
open(FILEHANDLE, ">.config.cache");
foreach my $key (keys %config) {
print FILEHANDLE "$key=\"$config{$key}\"\n";
}
close(FILEHANDLE);
}

sub dir_check {
my ($desc, $hash_key) = @_;
my $complete = 0;
while (!$complete) {
print "In what directory $desc?\n";
print "[\e[1;32m$config{$hash_key}\e[0m] -> ";
chomp(my $var = <STDIN>);
if ($var eq "") {
$var = $config{$hash_key};
}
if ($var =~ /^\~\/(.+)$/) {
# Convert it to a full path..
$var = resolve_directory($ENV{HOME} . "/" . $1);
}
elsif ((($config{OSNAME} =~ /MINGW32/i) and ($var !~ /^[A-Z]{1}:\\.*/)) and (substr($var,0,1) ne "/"))
{
# Assume relative Path was given.. fill in the rest.
$var = $this . "/$var";
}

$var = resolve_directory($var);
if (! -e $var) {
print "$var does not exist. Create it?\n[\e[1;32my\e[0m] ";
chomp(my $tmp = <STDIN>);
if (($tmp eq "") || ($tmp =~ /^y/i)) {
# Attempt to Create the Dir..
my $chk = eval {
use File::Path ();
File::Path::mkpath($var, 0, 0777);
1;
};
unless (defined($chk) && -d $var) {
print "Unable to create directory. ($var)\n\n";
# Restart Loop..
next;
}
} else {
# They said they don't want to create, and we can't install there.
print "\n\n";
next;
}
} else {
if (!is_dir($var)) {
# Target exists, but is not a directory.
print "File $var exists, but is not a directory.\n\n";
next;
}
}
# Either Dir Exists, or was created fine.
$config{$hash_key} = $var;
$complete = 1;
print "\n";
}
}

our $SHARED = "";

my ($mliflags, $mfrules, $mobjs, $mfcount) = ("", "", "", 0);

sub writefiles {
my($writeheader) = @_;
# First File.. inspircd_config.h
chomp(my $incos = `uname -n -s -r`);
chomp(my $version = `sh src/version.sh`);
chomp(my $revision2 = getrevision());
if ($writeheader == 1)
{
print "Writing \e[1;32minspircd_config.h\e[0m\n";
open(FILEHANDLE, ">include/inspircd_config.h.tmp");
print FILEHANDLE <<EOF;
/* Auto generated by configure, do not modify! */
#ifndef __CONFIGURATION_AUTO__
#define __CONFIGURATION_AUTO__

/* this is for windows support. */
#define CoreExport /**/
#define DllExport /**/

#define MOD_PATH "$config{MODULE_DIR}"
#define SOMAXCONN_S "$config{_SOMAXCONN}"
#define ENTRYPOINT int main(int argc, char** argv)

EOF
print FILEHANDLE "#define MAXBUF " . ($config{MAXBUF}+2) . "\n";

if ($config{OSNAME} =~ /SunOS/i) {
print FILEHANDLE "#define IS_SOLARIS\n";
}
if ($config{OSNAME} =~ /MINGW32/i) {
print FILEHANDLE "#define IS_MINGW\n";
}
if ($config{GCCVER} >= 3) {
print FILEHANDLE "#define GCC3\n";
}
if (
(($config{GCCVER} == 4) && ($config{GCCMINOR} >= 3))
||
($config{GCCVER} > 4)
) {
print FILEHANDLE "#define HASHMAP_DEPRECATED\n";
}
if ($config{HAS_STRLCPY} eq "true") {
print FILEHANDLE "#define HAS_STRLCPY\n";
}
if ($config{HAS_STDINT} eq "true") {
print FILEHANDLE "#define HAS_STDINT\n";
}
if ($config{IPV6} =~ /y/i) {
print FILEHANDLE "#define IPV6\n";
}
if ($config{HAS_EVENTFD} eq 'true') {
print FILEHANDLE "#define HAS_EVENTFD\n";
}
my $use_hiperf = 0;
if (($has_kqueue) && ($config{USE_KQUEUE} eq "y")) {
print FILEHANDLE "#define USE_KQUEUE\n";
$config{SOCKETENGINE} = "socketengine_kqueue";
$use_hiperf = 1;
}
if (($has_epoll) && ($config{USE_EPOLL} eq "y")) {
print FILEHANDLE "#define USE_EPOLL\n";
$config{SOCKETENGINE} = "socketengine_epoll";
$use_hiperf = 1;
}
if (($has_ports) && ($config{USE_PORTS} eq "y")) {
print FILEHANDLE "#define USE_PORTS\n";
$config{SOCKETENGINE} = "socketengine_ports";
$use_hiperf = 1;
}
# user didn't choose either epoll or select for their OS.
# default them to USE_SELECT (ewwy puke puke)
if (!$use_hiperf) {
print "no hi-perf, " . $config{USE_POLL};
if ($config{USE_POLL} eq "y")
{
print FILEHANDLE "#define USE_POLL\n";
$config{SOCKETENGINE} = "socketengine_poll";
}
else
{
print FILEHANDLE "#define USE_SELECT\n";
$config{SOCKETENGINE} = "socketengine_select";
}
}
print FILEHANDLE "\n#include \"threadengines/threadengine_pthread.h\"\n\n#endif\n";
close(FILEHANDLE);

open(FILEHANDLE, ">include/inspircd_version.h.tmp");
print FILEHANDLE <<EOF;
#define VERSION "$version"
#define REVISION "$revision2"
#define SYSTEM "$incos"
EOF
close FILEHANDLE;

for my $file (qw(include/inspircd_config.h include/inspircd_version.h)) {
my $diff = 0;
open my $fh1, $file or $diff = 1;
open my $fh2, $file.'.tmp' or die "Can't read $file.tmp that we just wrote: $!";
while (!$diff) {
my $line1 = <$fh1>;
my $line2 = <$fh2>;
if (defined($line1) != defined($line2)) {
$diff = 1;
} elsif (!defined $line1) {
last;
} else {
$diff = ($line1 ne $line2);
}
}
if ($diff) {
unlink $file;
rename "$file.tmp", $file;
} else {
unlink "$file.tmp";
}
}
}

# Write all .in files.
my $tmp = "";
my $file = "";
my $exe = "inspircd";

# Do this once here, and cache it in the .*.inc files,
# rather than attempting to read src/version.sh from
# compiled code -- we might not have the source to hand.
# Fix for bug#177 by Brain.

chomp($version = `sh ./src/version.sh`);
chomp(my $revision = getrevision());
$version = "$version(r$revision)";

# We can actually parse any file starting with . and ending with .inc,
# but right now we only parse .inspircd.inc to form './inspircd'
prepare_dynamic_makefile();

my @dotfiles = qw(main.mk inspircd);
push @dotfiles, 'org.inspircd.plist' if $config{OSNAME} eq 'darwin';

foreach my $file (@dotfiles) {
open(FILEHANDLE, "make/template/$file") or die "Can't open make/template/$file: $!";
$_ = join '', <FILEHANDLE>;
close(FILEHANDLE);

$config{BUILD_DIR} ||= resolve_directory($config{ME}."/build");

for my $var (qw(
CC SYSTEM BASE_DIR CONFIG_DIR MODULE_DIR BINARY_DIR BUILD_DIR UID
STARTSCRIPT DESTINATION EXTRA_DIR SOCKETENGINE
)) {
s/\@$var\@/$config{$var}/g;
}
s/\@EXECUTABLE\@/$exe/ if defined $exe;
s/\@VERSION\@/$version/ if defined $version;

if ($file eq 'main.mk') {
print "Writing \e[1;32mGNUmakefile\e[0m ...\n";

my $mk_tmp = $_;
s/\@IFDEF (\S+)/ifdef $1/g;
s/\@IFNDEF (\S+)/ifndef $1/g;
s/\@IFEQ (\S+) (\S+)/ifeq ($1,$2)/g;
s/\@ELSIFEQ (\S+) (\S+)/else ifeq ($1,$2)/g;
s/\@ELSE/else/g;
s/\@ENDIF/endif/g;
s/ *\@BSD_ONLY .*\n//g;
s/\@GNU_ONLY //g;
s/\@DO_EXPORT (.*)/export $1/g;
open MKF, '>GNUmakefile' or die "Can't write to GNUmakefile: $!";
print MKF $_;
close MKF;

print "Writing \e[1;32mBSDmakefile\e[0m ...\n";
$_ = $mk_tmp;
s/\@IFDEF (\S+)/.if defined($1)/g;
s/\@IFNDEF (\S+)/.if !defined($1)/g;
s/\@IFEQ (\S+) (\S+)/.if $1 == $2/g;
s/\@ELSIFEQ (\S+) (\S+)/.elif $1 == $2/g;
s/\@ELSE/.else/g;
s/\@ENDIF/.endif/g;
s/\@BSD_ONLY //g;
s/ *\@GNU_ONLY .*\n//g;
$mk_tmp = $_;
$mk_tmp =~ s#\@DO_EXPORT (.*)#"MAKEENV += ".join ' ', map "$_='\${$_}'", split /\s/, $1#eg;
open MKF, '>BSDmakefile' or die "Can't write to BSDmakefile: $!";
print MKF $mk_tmp;
close MKF;
} else {
print "Writing \e[1;32m$file\e[0m ...\n";
open(FILEHANDLE, ">$file") or die("Can't write to $file: $!\n");
print FILEHANDLE $_;
close(FILEHANDLE);
}
}

chmod 0755, 'inspircd';
}

sub depcheck
{
getmodules();
for my $mod (@modlist) {
getcompilerflags("src/modules/m_$mod.cpp");
getlinkerflags("src/modules/m_$mod.cpp");
}
}

sub prepare_dynamic_makefile
{
my $i = 0;

if (!$has_epoll)
{
$config{USE_EPOLL} = 0;
}
if (!$has_kqueue)
{
$config{USE_KQUEUE} = 0;
}
if (!$has_ports)
{
$config{USE_PORTS} = 0;
}
}

# Routine to list out the extra/ modules that have been enabled.
# Note: when getting any filenames out and comparing, it's important to lc it if the
# file system is not case-sensitive (== Epoc, MacOS, OS/2 (incl DOS/DJGPP), VMS, Win32
# (incl NetWare, Symbian)). Cygwin may or may not be case-sensitive, depending on
# configuration, however, File::Spec does not currently tell us (it assumes Unix behavior).
sub list_extras () {
use File::Spec;
# @_ not used
my $srcdir = File::Spec->catdir("src", "modules");
my $abs_srcdir = File::Spec->rel2abs($srcdir);
local $_;
my $dd;
opendir $dd, File::Spec->catdir($abs_srcdir, "extra") or die (File::Spec->catdir($abs_srcdir, "extra") . ": $!\n");
my @extras = map { File::Spec->case_tolerant() ? lc($_) : $_ } (readdir($dd));
closedir $dd;
undef $dd;
opendir $dd, $abs_srcdir or die "$abs_srcdir: $!\n";
my @sources = map { File::Spec->case_tolerant() ? lc($_) : $_ } (readdir($dd));
closedir $dd;
undef $dd;
my $maxlen = (sort { $b <=> $a } (map {length($_)} (@extras)))[0];
my %extras = ();
EXTRA: for my $extra (@extras) {
next if (File::Spec->curdir() eq $extra || File::Spec->updir() eq $extra);
next if ($extra eq '.svn');
my $abs_extra = File::Spec->catfile($abs_srcdir, "extra", $extra);
my $abs_source = File::Spec->catfile($abs_srcdir, $extra);
next unless ($extra =~ m/\.(cpp|h)$/ || (-d $abs_extra)); # C++ Source/Header, or directory
if (-l $abs_source) {
# Symlink, is it in the right place?
my $targ = readlink($abs_source);
my $abs_targ = File::Spec->rel2abs($targ, $abs_srcdir);
if ($abs_targ eq $abs_extra) {
$extras{$extra} = "\e[32;1menabled\e[0m";
} else {
$extras{$extra} = sprintf("\e[31;1mwrong symlink target (%s)\e[0m", $abs_targ);
}
} elsif (-e $abs_source) {
my ($devext, $inoext) = stat($abs_extra);
my ($devsrc, $inosrc, undef, $lnksrc) = stat($abs_source);
if ($lnksrc > 1) {
if ($devsrc == $devext && $inosrc == $inoext) {
$extras{$extra} = "\e[32;1menabled\e[0m";
} else {
$extras{$extra} = sprintf("\e[31;1mwrong hardlink target (%d:%d)\e[0m", $devsrc, $inosrc);
}
} else {
open my $extfd, "<", $abs_extra;
open my $srcfd, "<", $abs_source;
local $/ = undef;
if (scalar(<$extfd>) eq scalar(<$srcfd>)) {
$extras{$extra} = "\e[32;1menabled\e[0m";
} else {
$extras{$extra} = sprintf("\e[31;1mout of synch (re-copy)\e[0m");
}
}
} else {
$extras{$extra} = "\e[33;1mdisabled\e[0m";
}
}
# Now let's add dependency info
for my $extra (keys(%extras)) {
next unless $extras{$extra} =~ m/enabled/; # only process enabled extras.
my $abs_extra = File::Spec->catfile($abs_srcdir, "extra", $extra);
my @deps = split / +/, getdependencies($abs_extra);
for my $dep (@deps) {
if (exists($extras{$dep})) {
my $ref = \$extras{$dep}; # Take reference.
if ($$ref !~ m/needed by/) {
# First dependency found.
if ($$ref =~ m/enabled/) {
$$ref .= " (needed by \e[32;1m$extra\e[0m";
} else {
$$ref =~ s/\e\[.*?m//g; # Strip out previous coloring. Will be set in bold+red+blink later.
$$ref .= " (needed by \e[0;32;1;5m$extra\e[0;31;1;5m";
}
} else {
if ($$ref =~ m/enabled/) {
$$ref .= ", \e[32;1m$extra\e[0m";
} else {
$$ref .= ", \e[0;32;1;5m$extra\e[0;31;1;5m";
}
}
}
}
}
for my $extra (sort {$a cmp $b} keys(%extras)) {
my $text = $extras{$extra};
if ($text =~ m/needed by/ && $text !~ m/enabled/) {
printf "\e[31;1;5m%-*s = %s%s\e[0m\n", $maxlen, $extra, $text, ($text =~ m/needed by/ ? ")" : "");
} else {
printf "%-*s = %s%s\n", $maxlen, $extra, $text, ($text =~ m/needed by/ ? "\e[0m)" : "");
}
}
return keys(%extras) if wantarray; # Can be used by manage_extras.
}

sub enable_extras (@) {
my (@extras) = @_;
for my $extra (@extras) {
my $extrapath = "src/modules/extra/$extra";
if (!-e $extrapath) {
print STDERR "Cannot enable \e[32;1m$extra\e[0m : No such file or directory in src/modules/extra\n";
next;
}
my $source = "src/modules/$extra";
if (-e $source) {
print STDERR "Cannot enable \e[32;1m$extra\e[0m : destination in src/modules exists (might already be enabled?)\n";
next;
}
# Get dependencies, and add them to be processed.
my @deps = split / +/, getdependencies($extrapath);
for my $dep (@deps) {
next if scalar(grep { $_ eq $dep } (@extras)) > 0; # Skip if we're going to be enabling it anyway.
if (!-e "src/modules/$dep") {
if (-e "src/modules/extra/$dep") {
print STDERR "Will also enable extra \e[32;1m$dep\e[0m (needed by \e[32;1m$extra\e[0m)\n";
push @extras, $dep;
} else {
print STDERR "\e[33;1mWARNING:\e[0m module \e[32;1m$extra\e[0m might be missing dependency \e[32;1m$dep\e[0m - YOU are responsible for satisfying it!\n";
}
}
}
print "Enabling $extra ... \n";
symlink "extra/$extra", $source or print STDERR "$source: Cannot link to 'extra/$extra': $!\n";
}
}

sub disable_extras (@)
{
opendir my $dd, "src/modules/extra/";
my @files = readdir($dd);
closedir $dd;
my (@extras) = @_;
EXTRA: for my $extra (@extras) {
my $extrapath = "src/modules/extra/$extra";
my $source = "src/modules/$extra";
if (!-e $extrapath) {
print STDERR "Cannot disable \e[32;1m$extra\e[0m : Is not an extra\n";
next;
}
if ((! -l $source) || readlink($source) ne "extra/$extra") {
print STDERR "Cannot disable \e[32;1m$extra\e[0m : Source is not a link or doesn't refer to the right file. Remove manually if this is in error.\n";
next;
}
# Check if anything needs this.
for my $file (@files) {
my @deps = split / +/, getdependencies("src/modules/extra/$file");
# File depends on this extra...
if (scalar(grep { $_ eq $extra } @deps) > 0) {
# And is both enabled and not about to be disabled.
if (-e "src/modules/$file" && scalar(grep { $_ eq $file } @extras) < 1) {
print STDERR "Cannot disable \e[32;1m$extra\e[0m : is needed by \e[32;1m$file\e[0m\n";
next EXTRA;
}
}
}
# Now remove.
print "Disabling $extra ... \n";
unlink "src/modules/$extra" or print STDERR "Cannot disable \e[32;1m$extra\e[0m : $!\n";
}
}
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