--- telnetbbs/telnetbbs.pl 2010/12/13 05:54:50 1.5 +++ telnetbbs/telnetbbs.pl 2010/12/16 21:38:46 1.8 @@ -6,14 +6,13 @@ ## ## Nicholas DeClario ## October 2009 -## $Id: telnetbbs.pl,v 1.5 2010/12/13 05:54:50 nick Exp $ +## $Id: telnetbbs.pl,v 1.8 2010/12/16 21:38:46 nick Exp $ ## ################################################################################ BEGIN { delete @ENV{qw(IFS CDPATH ENV BASH_ENV PATH)}; $ENV{PATH} = "/bin:/usr/bin"; $|++; -# Flip this back on for more detailed error reporting # $SIG{__DIE__} = sub { require Carp; Carp::confess(@_); } } @@ -30,31 +29,34 @@ use threads; use threads::shared; ## -## Fetch our command line options +## Fetch our command line and configuration options ## my %opts = &fetchOptions( ); -my $pidFile = "/var/run/telnetbbs.pid"; +my %cfg = &fetchConfig( ); my $EOL = "\015\012"; ## -## These will be moved in to a config file +## These are read in from the config file ## -my $DISPLAY = ":0.0"; -my $BBS_NAME = "Hell's Dominion BBS"; my $BBS_NODE = 0; -my $DBCONF = "/tmp/dosbox-__NODE__.conf"; -my $BBS_CMD = "DISPLAY=$DISPLAY /usr/bin/dosbox -conf "; -my $LOG = "/var/log/bbs.log"; -my $MAX_NODE = 1; -my $DOSBOXT = "dosbox.conf.template"; -my $BASE_PORT = 7000; -my $LOCK_PATH = "/tmp"; +my $pidFile = $cfg{'pidfile'} || "/tmp/telnetbbs.pid"; +my $port = $opts{'port'} || $cfg{'port'} || 23; +my $DISPLAY = $cfg{'display'} || ":0.0"; +my $BBS_NAME = $cfg{'bbs_name'} || "Hell's Dominion BBS"; +my $DBCONF = $cfg{'dosbox_cfg'} || "/tmp/dosbox-__NODE__.conf"; +my $BBS_CMD = $cfg{'bbs_cmd'} || "DISPLAY=$DISPLAY /usr/bin/dosbox -conf "; +my $LOGGING = $cfg{'logging'} || 0; +my $LOG = $cfg{'log_path'} || "/tmp/bbs.log"; +my $MAX_NODE = $cfg{'nodes'} || 1; +my $DOSBOXT = $cfg{'dosboxt'} || "dosbox.conf.template"; +my $BASE_PORT = $cfg{'base_port'} || 7000; +my $LOCK_PATH = $cfg{'lock_path'} || "/tmp"; ## ## Check that we are 'root' ## die( "Must be root user to run this.\n" ) - if ( getpwuid( $> ) ne "root" ); + if ( getpwuid( $> ) ne "root" && $port < 1023 ); ## ## Check for a PID @@ -75,10 +77,16 @@ local $SIG{HUP} = $SIG{INT} = $SIG{TERM ## ## Open the Log ## -#open LOG, ">>$LOG"; +open LOG, ">>$LOG" if ( $LOGGING ); &logmsg( "Starting telnetbbs server" ); ## +## Display running information +## +&display_config_and_options( \%opts, "Options" ); +&display_config_and_options( \%cfg, "Configuration" ); + +## ## Start the network server ## my $netThread = threads->create( \&startNetServer( ) ); @@ -97,9 +105,46 @@ while( 1 ) { sleep 1; } ## Sub-routines begin here ## ############################################################################### + + +############################################################################### +## +## &logmsg( "string" ); +## +## This takes a string and prepends the process name, ID and timestamp +## to the message. It then displays it to STDOUT and logs it if enabled. +## ############################################################################### +sub logmsg +{ + my $message = "$0 $$ " . scalar( localtime( ) ) . ":@_\n"; + print STDOUT $message; + print LOG $message if ( $LOGGING ); +} -sub logmsg { print STDOUT "$0 $$ ", scalar localtime, ":@_\n" } + +############################################################################### +## +## &display_config_and_options( %hash ); +## +## This will display via Data::Dumper a hash that is passed to it. +## If verbose is enabled it will got to STDOUT and if logging is enabled +## it will be logged. +## +## This is called only once during startup. +## +############################################################################### +sub display_config_and_options +{ + my $hr = shift || 0; + my $name = shift || "Unknown"; + my $title = "Displaying $name\n"; + + return $hr if ( ! $hr ); + + print LOG $title . Dumper( $hr ) if ( $LOGGING ); + print STDOUT $title . Dumper( $hr ) if ( $opts{'verbose'}); +} ############################################################################### ## startNetServer( ); @@ -112,7 +157,6 @@ sub startNetServer { my $hostConnection; my $childPID; - my $port = $opts{'port'} || 23; my @nodes = ( ); my $server = IO::Socket::INET->new( @@ -138,7 +182,6 @@ sub startNetServer my $lock_file = ""; foreach (1 .. $MAX_NODE) { -print "Searching for lock: " . $LOCK_PATH."/".$BBS_NAME."_node".$_.".lock\n"; next if ( -f $LOCK_PATH."/".$BBS_NAME."_node".$_.".lock" ); ## @@ -149,7 +192,6 @@ print "Searching for lock: " . $LOCK_PAT close( LOCK ); $node = $BBS_NODE = $_; } -print "Using lock: " . $LOCK_PATH."/".$BBS_NAME."_node".$node.".lock\n"; ## ## Create our dosbox config @@ -283,7 +325,7 @@ sub shutdown ## ## Close Log ## - close( LOG ); + close( LOG ) if ( $LOGGING ); ## ## Remove the PID @@ -291,6 +333,15 @@ sub shutdown unlink( $pidFile ); ## + ## Remove node lock files + ## + foreach (1 .. $MAX_NODE) + { + my $node_lock = $LOCK_PATH."/".$BBS_NAME."_node".$_.".lock"; + unlink( $node_lock ) if ( -f $node_lock ); + } + + ## ## Wait for the thread to shutdown ## # $netThread->detach( ); @@ -399,6 +450,50 @@ sub processExists return 0; } +############################################################################### +############################################################################### +sub fetchConfig +{ + my %conf = ( ); + my $cf = &findConfig; + + if ( $cf ) + { + open( CONF, "<$cf" ) or die ( "Error opening $cf: $!\n" ); + while( ) + { + next if ( $_ =~ m/^#/ ); + if ( $_ =~ m/(.*?)=(.*)/ ) + { + my $k = $1; my $v = $2; + $k =~ s/\s+//; + $v =~ s/\s+//; + $conf{$k} = $v; + } + } + close( CONF ); + } + + return %conf; +} + +############################################################################### +############################################################################### +sub findConfig +{ + my $cf = 0; + my @paths = qw| ./ ./.telnetbbs /etc /usr/local/etc |; + + return $opts{'config'} if defined $opts{'config'}; + + foreach ( @paths ) + { + my $fn = $_ . "/telnetbbs.conf"; + return $fn if ( -f $fn ); + } + + return $cf; +} ############################################################################### ## @@ -411,9 +506,11 @@ sub fetchOptions { my %opts; &GetOptions( + "config:s" => \$opts{'config'}, "help|?" => \$opts{'help'}, "man" => \$opts{'man'}, "port:i" => \$opts{'port'}, + "verbose" => \$opts{'verbose'}, ) || &pod2usage( ); &pod2usage( ) if defined $opts{'help'}; &pod2usage( { -verbose => 2, -input => \*DATA } ) if defined $opts{'man'}; @@ -432,9 +529,11 @@ telnetbbs.pl - A telnet server designed telnetbbs.pl [options] Options: + --config,c Specify the configuration file to use --help,? Display the basic help menu --man,m Display the detailed man page --port,p Port to listen on, default 23. + --verbose,v Enable verbose output =head1 DESCRIPTION