#!/bin/bash

# cleanfs
# Clean file system

# Source functions library
source /etc/rc.d/init.d/functions

log_script_name "$0 $*"

clean_files()
{
    failed=0

    cd /var/lock &&
    find . -type f ! -newer /proc -exec rm -f {} \; || failed=1

    cd /var/run &&
    find . ! -type d ! -name utmp ! -newer /proc -exec rm -f {} \; || failed=1

    if [ -d /srv/named ]; then
        cd /srv/named/var/run &&
        find . ! -type d ! -name utmp ! -newer /proc -exec rm -f {} \; || failed=1
    fi

    > /var/run/utmp
    if grep -q '^utmp:' /etc/group ; then
	chmod 664 /var/run/utmp
	chgrp utmp /var/run/utmp
    fi

    return ${failed}
}

# Function to create files/directory on boot.
create_files()
{
    failed=0

    # Read in the configuration file.
    exec 9>&0 < /etc/sysconfig/createfiles
    while read name type perm usr grp dtype maj min junk; do
        # Ignore comments and blank lines.
       	case "${name}" in
	    ""|\#*) continue ;;
	esac

        # Ignore existing files.
	if [ ! -e "${name}" ]; then
	    # Create stuff based on its type.
	    case "${type}" in
		dir)
		    mkdir "${name}"
		    ;;
		file)
		    :> "${name}"
		    ;;
		dev)
		    case "${dtype}" in
			char)
			    mknod "${name}" c ${maj} ${min}
			    ;;
			block)
			    mknod "${name}" b ${maj} ${min}
			    ;;
			pipe)
			    mknod "${name}" p
			    ;;
			*) 
			    echo  "Unknown device type: ${dtype}"
			    failed=${EXIT_CODE_WARNING}
			    ;;
		    esac
		    ;;
		*)
		    echo "Unknown type: ${type}"
		    failed=${EXIT_CODE_WARNING}
		    continue
		    ;;
	    esac

            # Set up the permissions, too.
	    chown ${usr}:${grp} "${name}"
	    chmod ${perm} "${name}"
	fi
    done
    exec 0>&9 9>&-

    return ${failed}
}

case "${1}" in
    start)
	cmd_run_log_box "Cleaning file systems" clean_files

	if [ -e /etc/sysconfig/createfiles ]; then
	    if egrep -qv '^(#|$)' /etc/sysconfig/createfiles 2>/dev/null; then
	        cmd_run_log_box_warn "Creating files and directories" create_files
	    fi
	fi
        ;;
    *)
        echo "Usage: $0 {start}"
        exit ${EXIT_CODE_FAILURE}
	;;
esac

exit $?