#!/bin/sh

PID_FILE="@IRCDDIR@/ircd.pid"
PID_BACKUP="@IRCDDIR@/ircd.pid.bak"
if [ ! -f @BINDIR@ ]; then
	echo "ERROR: Could not find the IRCd binary (@BINDIR@)"
	echo "This usually means you did not answer the question correctly"
	echo "during './Config', or you forgot to run 'make install'."
	exit
fi
if [ "$1" = "start" ] ; then
	echo "Starting UnrealIRCd"
	if [ -r $PID_FILE ] ; then
		mv -f $PID_FILE $PID_BACKUP
	fi
	@BINDIR@
	sleep 1
	if [ ! -r $PID_FILE ] ; then
		echo "Possible error encountered (IRCd seemingly not started)"	
		echo "====================================================="
		echo "Check above for possible errors, and this output of  "
		echo "ircd.log. If you cannot solve the problem, read"
		echo "Unreal.nfo on where to get support"
		echo "====================================================="
		tail -n 5 @IRCDDIR@/ircd.log
		if [ -r $PID_BACKUP ] ; then
			mv -f $PID_BACKUP $PID_FILE
		fi
	fi
elif [ "$1" = "stop" ] ; then
	echo "Stopping UnrealIRCd"
	if [ ! -r $PID_FILE ] ; then
		echo "ERROR: UnrealIRCd is not running"
		exit 1
	fi
	kill -9 `cat $PID_FILE`
elif [ "$1" = "rehash" ] ; then
	echo "Rehashing UnrealIRCd"
	if [ ! -r $PID_FILE ] ; then
		echo "ERROR: UnrealIRCd is not running"
		exit 1
	fi
	kill -1 `cat $PID_FILE`
elif [ "$1" = "restart" ] ; then
	echo "Restarting UnrealIRCd"
	if [ ! -r $PID_FILE ] ; then
		echo "ERROR: UnrealIRCd is not running"
		exit 1
	fi
	kill -2 `cat $PID_FILE`
elif [ "$1" = "mkpasswd" ] ; then
	@BINDIR@ -P $2 $3
elif [ "$1" = "version" ] ; then
	@BINDIR@ -v
elif [ "$1" = "gencloak" ] ; then
	@BINDIR@ -k
elif [ "$1" = "backtrace" ] ; then
	cd @IRCDDIR@

	if [ -d "modules" ]; then
		modpath="modules"
	elif [ -d "src/modules" ]; then
		modpath="src/modules"
	else
		echo 'Enter the path to your modules directory relative to your root installed directory (eg: "mods")'
		read modpath
		if [ ! -d "$modpath" ]; then
			echo "Not a directory"
			exit
		fi
	fi

	# Find the corefile
	echo "Core files available:"
	n="0"
	for i in `echo *core*`
	do
		ls -l $i
		n=`expr $n + 1`
	done

	if [ "$n" -gt 1 ]; then
		echo "Type the name of the core file you want to research:"
		read corefile
	elif [ "$i" = "*core*" -o "$n" -eq 0 ]; then
		echo 'No core files found... Nothing to do'
		echo ''
		echo 'If you are sure UnrealIRCd crashed, then verify that unreal'
		echo 'has permission to dump core (type "ulimit -c unlimited" and see'
		echo 'if you get permission denied errors). Also verify that you did'
		echo 'not run out of quota.'
		echo 'If all that is ok, then it might be that Unreal did not crash but'
		echo 'got killed by the OS (eg: cpu/mem resource limits), the syadmin,'
		echo 'or an automated process.'
		exit 1
	else
		corefile="$i"
	fi

	if [ ! -f "$corefile" ]; then
		echo "Core file '$corefile' not found"
	fi
	if [ ! -s "$corefile" ]; then
		echo 'Seems the corefile is 0 bytes'
		echo 'This usually means you need to relax the core file resource limit'
		echo '(type "ulimit -c unlimited"), or you might have ran out of quota.'
		exit 1
	fi

	# The tmp/*.so files are often already deleted. Here we have some
	# (ugly) scripting to recreate the tmp/*.so links to the modules *.so files...
	echo 'info sharedlibrary'|gdb @BINDIR@ $corefile 2>/dev/null|\
	grep No|grep tmp/|awk '{ print $2 }'|\
	awk -F '.' "{ system(\"ln -s ../$modpath/\" \$2 \".so \" \$0) }"
	
	echo ""
	echo "=================== START HERE ======================"
	echo "BACKTRACE:"

cat >gdb.commands << __EOF__
bt
echo \n
frame
echo \n
x/s backupbuf
echo \n
bt 3 full
quit
__EOF__

	gdb -batch -x gdb.commands @BINDIR@ $corefile
	rm -f gdb.commands
	echo "GCC: `gcc -v 2>&1|tail -n 1`"
	echo "UNAME: `uname -a`"
	echo "UNREAL: `$0 version`"
	echo "CORE: `ls -al $corefile`"
	echo "===================  STOP HERE ======================"
	echo ""
	echo "Copy the parts between the START HERE and STOP HERE marker"
	echo "and report it on http://bugs.unrealircd.org/"
	echo ""
	echo 'But before you do, note the following:'
	echo '1. We do not support modifications of any unrealircd code'
	echo '   (except for config.h changes).'
	echo '2. If you are using 3rd party modules we might request you'
	echo '   to run without them and verify you still crash. This is'
	echo '   to eleminate any loss of time due to bugs made by others'
	echo '3. Always use the latest UnrealIRCd version, we fix (crash)bugs'
	echo '   all the time so your bug might as well be fixed already.'
	echo ""
	echo "Thanks!"
else
	echo "Usage: unreal start|stop|rehash|restart|mkpasswd|version|gencloak"
fi
