#!/bin/sh
#
# Copyright (c) 2002, Valve LLC. All rights reserved.
#
# a wrapper script for the main hl dedicated server binary.
# Performs auto-restarting of the server on crash. You can
# extend this to log crashes and more.
#
# setup the libraries, local dir first!
export LD_LIBRARY_PATH=".:$LD_LIBRARY_PATH"
init() {
# Initialises the various variables
# Set up the defaults
GAME="valve"
DEBUG=""
RESTART="yes"
HL=./hlds_i486
HL_DETECT=1
TIMEOUT=10 # time to wait after a crash (in seconds)
CRASH_DEBUG_MSG="email debug.log to linux@valvesoftware.com"
GDB="gdb" # the gdb binary to run
DEBUG_LOG="debug.log"
PID_FILE="" # only needed it DEBUG is set so init later
STEAM=""
PID_FILE_SET=0
STEAMERR=""
SIGINT_ACTION="quit 0" # exit normally on sig int
NO_TRAP=0
AUTO_UPDATE=""
STEAM_USER=""
STEAM_PASSWORD=""
PARAMS=$*
# Remove any old default pid files
# Cant do this as they may be still running
#rm -f hlds.*.pid
# use the $FORCE environment variable if its set
if test -n "$FORCE" ; then
# Note: command line -binary will override this
HL=$FORCE
HL_DETECT=0
fi
while test $# -gt 0; do
case "$1" in
"-game")
GAME="$2"
shift ;;
"-debug")
DEBUG=1
# Ensure that PID_FILE is set
PID_FILE_SET=1
if test -z "$PID_FILE"; then
PID_FILE="hlds.$$.pid"
fi ;;
"-norestart")
RESTART="" ;;
"-pidfile")
PID_FILE="$2"
PID_FILE_SET=1
shift ;;
"-binary")
HL="$2"
HL_DETECT=0
shift ;;
"-timeout")
TIMEOUT="$2"
shift ;;
"-gdb")
GDB="$2"
shift ;;
"-debuglog")
DEBUG_LOG="$2"
shift ;;
"-autoupdate")
AUTO_UPDATE="yes"
STEAM="./steam"
RESTART="yes" ;;
"-steamerr")
STEAMERR=1 ;;
"-ignoresigint")
SIGINT_ACTION="" ;;
"-notrap")
NO_TRAP=1 ;;
"-steamuser")
STEAM_USER="$2";
shift ;;
"-steampass")
STEAM_PASSWORD="$2";
shift ;;
"-help")
# quit with syntax
quit 2
;;
esac
shift
done
# Ensure we have a game specified
if test -z "$GAME"; then
echo "Unable to determine game type from command line."
quit 1
elif test ! -d "$GAME"; then
echo "Invalid game type '$GAME' sepecified."
quit 1
fi
if test 0 -eq "$NO_TRAP"; then
# Set up the int handler
# N.B. Dont use SIGINT symbolic value
# as its just INT under ksh
trap "$SIGINT_ACTION" 2
fi
# Only detect the CPU if it hasnt been set with
# either environment or command line
if test "$HL_DETECT" -eq 1; then
detectcpu
fi
if test ! -f "$HL"; then
echo "Half-life binary '$HL' not found, exiting"
quit 1
elif test ! -x "$HL"; then
# Could try chmod but dont know what we will be
# chmoding so just fail.
echo "Half-life binary '$HL' not executable, exiting"
quit 1
fi
# Setup debugging
if test -n "$DEBUG" ; then
#turn on core dumps :) (if possible)
echo "Enabling debug mode"
if test "unlimited" != `ulimit -c` && test "`ulimit -c`" -eq 0 ; then
ulimit -c 2000
fi
GDB_TEST=`$GDB -v`
if test -z "$GDB_TEST"; then
echo "Please install gdb first."
echo "goto
http://www.gnu.org/software/gdb/ "
DEBUG="" # turn off debugging cause gdb isn't installed
fi
fi
if test -n "$STEAM_PASSWORD" && test -z "$STEAM_USER"; then
echo "You must set both the steam username and password."
quit 1
fi
if test 1 -eq $PID_FILE_SET && test -n "$PID_FILE"; then
HL_CMD="$HL $PARAMS -pidfile $PID_FILE"
else
HL_CMD="$HL $PARAMS"
fi
}
syntax () {
# Prints script syntax
echo "Syntax:"
echo "$0 [-game <game>] [-debug] [-norestart] [-pidfile]"
echo " [-binary [hlds_i486|hlds_i686|hlds_amd|hlds_amd64]"
echo " [-timeout <number>] [-gdb <gdb>] [-autoupdate]"
echo " [-steamerr] [-ignoresigint] [-steamuser <username>]"
echo " [-steampass <password>] [-debuglog <logname>]"
echo "Params:"
echo "-game <game> Specifies the <game> to run."
echo "-debug Run debugging on failed servers if possible."
echo "-debuglog <logname> Log debug output to this file."
echo "-norestart Don't attempt to restart failed servers."
echo "-pidfile <pidfile> Use the specified <pidfile> to store the server pid."
echo "-binary <binary> Use the specified binary ( no auto detection )."
echo "-timeout <number> Sleep for <number> seconds before restarting"
echo " a failed server."
echo "-gdb <gdb> Use <dbg> as the debugger of failed servers."
echo "-steamerr Quit on steam update failure."
echo "-steamuser <username> Use this username for steam updates."
echo "-steampass <password> Use this password for steam updates"
echo " (-steamuser must be specified as well)."
echo "-ignoresigint Ignore signal INT ( prevents CTRL+C quitting"
echo " the script )."
echo "-notrap Don't use trap. This prevents automatic"
echo " removal of old lock files."
echo ""
echo "Note: All parameters specified as passed through to the server"
echo "including any not listed."
}
debugcore () {
# Debugs any core file if DEBUG is set and
# the exitcode is none 0
exitcode=$1
if test $exitcode -ne 0; then
if test -n "$DEBUG" ; then
echo "bt" > debug.cmds;
echo "info locals" >> debug.cmds;
echo "info sharedlibrary" >> debug.cmds
echo "info frame" >> debug.cmds; # works, but gives an error... must be last
echo "----------------------------------------------" >> $DEBUG_LOG
echo "CRASH: `date`" >> $DEBUG_LOG
echo "Start Line: $HL_CMD" >> $DEBUG_LOG
# check to see if a core was dumped
if test -f core ; then
CORE="core"
elif test -f core.`cat $PID_FILE`; then
CORE=core.`cat $PID_FILE`
elif test -f "$HL.core" ; then
CORE="$HL.core"
fi
if test -n "$CORE"; then
$GDB $HL $CORE -x debug.cmds -batch >> $DEBUG_LOG
fi
echo "End of crash report" >> $DEBUG_LOG
echo "----------------------------------------------" >> $DEBUG_LOG
echo $CRASH_DEBUG_MSG
rm debug.cmds
else
echo "Add \"-debug\" to the $0 command line to generate a debug.log to help with solving this problem"
fi
fi
}
detectcpu() {
# Attempts to auto detect the CPU
echo "Auto detecting CPU"
if test -e /proc/cpuinfo; then
CPU_VERSION="`grep "cpu family" /proc/cpuinfo | cut -f2 -d":" | tr -d " " | uniq`";
if test $CPU_VERSION -lt 4; then
echo "Error: hlds_l REQUIRES a 486 CPU or better";
quit 1
# elif test $CPU_VERSION -eq 15; then
# # P4 CPU version
# echo "Using Pentium II Optimised binary."
# HL=./hlds_i686
#
elif test $CPU_VERSION -ge 6; then
AMD="`grep AMD /proc/cpuinfo`";
if test -n "$AMD"; then
OPTERON="`grep Opteron /proc/cpuinfo`";
if test -z "$OPTERON"; then
OPTERON="`grep "Athlon HX" /proc/cpuinfo`";
if test -z "$OPTERON"; then
OPTERON="`grep "Athlon(tm) 64" /proc/cpuinfo`";
fi
fi
if test -n "$OPTERON"; then
echo "Using AMD-Opteron (64 bit) Optimised binary."
HL=./hlds_amd64
else
echo "Using AMD Optimised binary."
HL=./hlds_amd
fi
else
echo "Using Pentium II Optimised binary."
# there is a CPU manufactured by VIA that
# doesn't support some PII instructions...
# detect this.
VIACHIP=`grep CentaurHauls /proc/cpuinfo`
if test -z "$VIACHIP"; then
HL=./hlds_i686
fi
fi
else
echo "Using default binary."
fi
elif test "FreeBSD" = `uname`; then
CPU="`grep 'CPU:' /var/run/dmesg.boot`"
AMD="`echo $CPU |grep AMD`"
I686="`echo $CPU |grep 686`"
if test -n "$AMD"; then
echo "Using AMD Optimised binary."
HL=./hlds_amd
elif test -n "$I686" ; then
echo "Using Pentium II Optimised binary."
HL=./hlds_i686
else
echo "Using default binary."
fi
else
echo "Using default binary."
fi
}
update() {
updatesingle
}
updatesingle() {
# Run the steam update
# exits on failure if STEAMERR is set
if test -n "$AUTO_UPDATE"; then
if test -f "$STEAM"; then
echo "Updating server using Steam."
CMD="$STEAM -command update -game $GAME -dir .";
if test -n "$STEAM_USER"; then
CMD="$CMD -username $STEAM_USER";
fi
if test -n "$STEAM_PASSWORD"; then
CMD="$CMD -password $STEAM_PASSWORD";
fi
$CMD
if test $? -ne 0; then
if test -n "$STEAMERR"; then
echo "`date`: Steam Update failed, exiting."
quit 1
else
echo "`date`: Steam Update failed, ignoring."
return 0
fi
fi
else
if test -n "$STEAMERR"; then
echo "Could not locate steam binary:$STEAM, exiting.";
quit 1
else
echo "Could not locate steam binary:$STEAM, ignoring.";
return 0
fi
fi
fi
return 1
}
run() {
# Runs the steam update and server
# Loops if RESTART is set
# Debugs if server failure is detected
# Note: if RESTART is not set then
# 1. DEBUG is set then the server is NOT exec'd
# 2. DEBUG is not set the the server is exec'd
if test -n "$RESTART" ; then
echo "Auto-restarting the server on crash"
#loop forever
while true
do
# Update if needed
update
# Run the server
$HL_CMD
retval=$?
if test $retval -eq 0 && test -z "$AUTO_UPDATE"; then
break; # if 0 is returned then just quit
fi
debugcore $retval
echo "`date`: Server restart in $TIMEOUT seconds"
# don't thrash the hard disk if the server dies, wait a little
sleep $TIMEOUT
done # while true
else
# Update if needed
update
# Run the server
if test -z "$DEBUG"; then
# debug not requested we can exec
exec $HL_CMD
else
# debug requested we can't exec
$HL_CMD
debugcore $?
fi
fi
}
quit() {
# Exits with the give error code, 1
# if none specified.
# exit code 2 also prints syntax
exitcode="$1"
# default to failure
if test -z "$exitcode"; then
exitcode=1
fi
case "$exitcode" in
0)
echo "`date`: Server Quit" ;;
2)
syntax ;;
*)
echo "`date`: Server Failed" ;;
esac
# Remove pid file
if test -n "$PID_FILE" && test -f "$PID_FILE" ; then
# The specified pid file
rm -f $PID_FILE
fi
# reset SIGINT and then kill ourselves properly
trap - 2
kill -2 $$
}
# Initialise
init $*
# Run
run
# Quit normally
quit 0
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