head	1.8;
access;
symbols;
locks
	alexis:1.8; strict;
comment	@# @;


1.8
date	98.08.07.11.36.41;	author alexis;	state Exp;
branches;
next	1.7;

1.7
date	98.03.01.22.28.56;	author alexis;	state Exp;
branches;
next	1.6;

1.6
date	97.10.26.12.12.35;	author alexis;	state Exp;
branches;
next	1.5;

1.5
date	97.10.20.17.53.40;	author alexis;	state Exp;
branches;
next	1.4;

1.4
date	97.02.15.11.32.26;	author alexis;	state Exp;
branches;
next	1.3;

1.3
date	97.01.31.14.43.34;	author alexis;	state Exp;
branches;
next	1.2;

1.2
date	97.01.31.10.22.48;	author alexis;	state Exp;
branches;
next	1.1;

1.1
date	97.01.22.10.34.47;	author alexis;	state Exp;
branches;
next	;


desc
@@


1.8
log
@milepost - seems to work
@
text
@#!SCRIPTSHELLCMD_MARKER
PATH=/bin:/usr/bin
PROGNAME=`basename $0`

###############################################################################
#                                                                             #
#  LINK QUALITY TESTER                                                        #
#                                                                             #
###############################################################################

###############################################################################
#
#  Things you should know about this script:
#
#  It is stored under RCS! Keep it that way! If you want a history of
#  changes made to this script then refer to rlog(1) - don't look here!
#
###############################################################################

###############################################################################
#
#  CONFIGURABLE STUFF STARTS HERE
#
###############################################################################

COUNT=5

###############################################################################
#
#  CONFIGURABLE STUFF ENDS HERE
#
###############################################################################

VERSION="PATCHLEVEL_MARKER"
# $Id: sndmail-sendmail.in,v 1.5 1998/02/05 12:27:22 alexis Exp $
SNDMSG=LCLSBINDIR_MARKER/sndmsg

###############################################################################
#
#  MAIN FUNCTION (called from very bottom of script)
#
###############################################################################

main()
{

    ###########################################################################
    #
    #  PROCESS OPTIONS
    #
    ###########################################################################

    while [ "X$1" != X ]; do
        case "$1" in
            -V) if expr "$VERSION" : 'P.*R$' > /dev/null; then
                    warning "this is a development version; use 'ident' for version information"
                    exit 1 
                else                
                    echo "$PROGNAME version $VERSION"
                    exit 0
                fi ;;
            -d) [ "X$2" = X ] && usage 
                VERBOSE_LEVEL=$2
                shift ;;
            -v) VERBOSE_LEVEL=3 ;;
	    -c) [ "X$2" = X ] && usage
	        COUNT=$2
	        shift ;;
            -*) usage ;;
            *)  break ;;
        esac
        shift
    done

    #  One argument required - the host to use for the check
    [ "X$1" = X -o "X$2" != X ] && usage

    #  Are locks required? No. This script should run very quickly.

    ###########################################################################
    #
    #  CHECK QUALITY
    #
    ###########################################################################

    info "running, host=$1, count=$COUNT"
    QUALITY=`ping -c $COUNT -i 1 -n -q $1 2>/dev/null | sed -n -e 's/^.*ed, \([0-9].*\)% pack.*$/\1/p' | xargs expr 100 -`
    info "quality is ${QUALITY}%"
    $SNDMSG 40 $QUALITY
}

gen_lock_file_name()
{
    echo LOCKDIR_MARKER/$PROGNAME.pid
}

usage()
{
    {
        echo "Usage: $PROGNAME [ -d <level> | -v ] [ -c <count> ] <ipaddr>"
        echo "       $PROGNAME -V"
    } >&2
    exit 1
}

###############################################################################
#
#  RESILIANT MESSAGING FUNCTIONS 
#
###############################################################################

internal()
{
    MSG="INTERNAL ERROR: $*"
    DATE=`date`

    #  echo it so that the user can see it or cron can trap it (split line
    #  to avoid confusing 'ident')
    echo "$PROGNAME: \
$MSG" >&2

    #  try to write it into $LOG_FILE if that's defined - other message types
    #  treat unwritable but defined LOG_FILE as an error
    ( echo "$DATE: \
$MSG" >> ${LOG_FILE:-/dev/null} ) 2>/dev/null

    #  try to syslog it - other message types are only syslog'ed if there is
    #  no controlling terminal (as when run from 'at' or 'cron')
    logger -i -p local0.alert -t $PROGNAME "$MSG"

    #  try to log it on the console
    echo "$DATE: \
$MSG" > /dev/console

    exit 2
}

error()
{
    DO_EXIT=${ERRORS_CAUSE_EXITS:-true}
    STDIN=false

    while :; do
        case "$1" in
            -)  STDIN=true ;;
            -e) DO_EXIT=true ;;
            -ne) DO_EXIT=false ;;
            -*) internal "invalid option to error() '$1'" ;;
            *)  break ;;
        esac
        shift
    done

    if [ ${VERBOSE_LEVEL:-2} -ge 1 ]; then

        DATE=`date`

        { { [ $STDIN = false ] && echo "$@@"; } || cat; } | while read LINE; do
            MSG="ERROR: $LINE"
            ( echo "$DATE: \
$MSG" >> ${LOG_FILE:-/dev/null} ) 2>/dev/null || internal "log file $LOG_FILE not writable!"
            { [ -t 2 ] && echo "$PROGNAME: \
$MSG" >&2; } || logger -i -p $FACILITY.err -t $PROGNAME "$MSG"
        done
    fi

    [ $DO_EXIT = false ] && return 1
    exitdel
    exit 1
}

warning()
{
    STDIN=false

    while :; do
        case "$1" in
            -)  STDIN=true ;;
            -*) internal "invalid option to error() '$1'" ;;
            *)  break ;;
        esac
        shift
    done

    if [ ${VERBOSE_LEVEL:-2} -ge 2 ]; then
        DATE=`date`

        { { [ $STDIN = false ] && echo "$@@"; } || cat; } | while read LINE; do
            MSG="WARNING: $LINE"
            ( echo "$DATE: \
$MSG" >> ${LOG_FILE:-/dev/null} ) 2>/dev/null || internal "log file $LOG_FILE not writable!"
            { [ -t 2 ] && echo "$PROGNAME: \
$MSG" >&2; } || logger -i -p $FACILITY.warning -t $PROGNAME "$MSG"
        done
    fi

    return 0
}

debug()
{
    STDIN=false

    while :; do
        case "$1" in
            -)  STDIN=true ;;
            -*) internal "invalid option to error() '$1'" ;;
            *)  break ;;
        esac
        shift
    done

    LEVEL=$1
    shift

    if [ ${VERBOSE_LEVEL:-2} -ge $LEVEL ]; then
        DATE=`date`

        { { [ $STDIN = false ] && echo "$@@"; } || cat; } | while read LINE; do
            MSG="DEBUG[$LEVEL]: $LINE"
            ( echo "$DATE: \
$MSG" >> ${LOG_FILE:-/dev/null} ) 2>/dev/null || internal "log file $LOG_FILE not writable!"
            { [ -t 2 ] && echo "$PROGNAME: \
$MSG" >&2; } || logger -i -p $FACILITY.debug -t $PROGNAME "$MSG"
        done
    fi

    return 0
}

info()
{
    STDIN=false

    while :; do
        case "$1" in
            -)  STDIN=true ;;
            -*) internal "invalid option to error() '$1'" ;;
            *)  break ;;
        esac
        shift
    done

    if [ ${VERBOSE_LEVEL:-2} -ge 3 ]; then
        DATE=`date`

        { { [ $STDIN = false ] && echo "$@@"; } || cat; } | while read LINE; do
            MSG="INFO: $LINE"
            ( echo "$DATE: \
$MSG" >> ${LOG_FILE:-/dev/null} ) 2>/dev/null || internal "log file $LOG_FILE not writable!"
            { [ -t 2 ] && echo "$PROGNAME: \
$MSG" >&2; } || logger -i -p $FACILITY.info -t $PROGNAME "$MSG"
        done
    fi

    return 0
}

###############################################################################
#
#  GENERIC SUPPORT FUNCTIONS (not specifically related to backup task)
#
###############################################################################

locatecmd()
{
    for POSSCMD in $*; do
        [ X`whichcmd $POSSCMD` != X ] && { echo $POSSCMD; return 0; }
    done
    return 1
}

whichcmd()
{
    for DIR in `echo $PATH | sed 's/:/ /g'`; do
        [ -x $DIR/$1 ] && { echo $DIR/$1; return 0; }
    done
    return 1
}

###############################################################################
#
#  TEMPORARY FILE MANAGEMENT FUNCTIONS
#
###############################################################################

delonexit()
{
    DELONEXIT="$DELONEXIT $*"
}
 
dontdelonexit()
{
    for FILE in $*; do
        DELONEXIT=`echo $DELONEXIT | sed "s@@$FILE@@@@g"`
    done
}
 
exitdel()
{
    debug 5 "cleaning up"
    rm -f $DELONEXIT
}

sighandler()
{
    warning "signal recieved, clearing up and exiting"
    exitdel
    exit 3
}

###############################################################################
#
#  LOCKING ROUTINES
#
###############################################################################

lock()
{
    debug 5 "lock: locking $1"
    LOCKFILE=`gen_lock_file_name $1`

    { echo $$ > $LOCKFILE.$$; } 2>/dev/null || error -e "can't create lock"
    ln $LOCKFILE.$$ $LOCKFILE 2>/dev/null && { rm $LOCKFILE.$$; return 0; }
    HOLDING_PID=`cat $LOCKFILE`
    [ "X$HOLDING_PID" = X ] && { rm $LOCKFILE.$$; error -e "empty lockfile: $LOCKFILE"; }
    [ -d /proc/$HOLDING_PID ] && { rm $LOCKFILE.$$; error -e "program running already! (pid=$HOLDING_PID)"; }
    info "removing stale lock (pid=$HOLDING_PID)"
    rm -f $LOCKFILE
    ln $LOCKFILE.$$ $LOCKFILE 2>/dev/null && { rm $LOCKFILE.$$; return 0; }
    rm $LOCKFILE.$$
    error -e "couldn't lock after removing stale lockfile"
}

unlock()
{
    debug 5 "unlock: unlocking $1"
    LOCKFILE=`gen_lock_file_name $1`

    rm -f $LOCKFILE
}
umask 022
main "$@@"
exit $?
@


1.7
log
@split a line that was confusing ident
@
text
@d1 1
a1 1
#!/bin/sh
d4 30
d35 2
a36 1
RCS_ID_QTEST='$Id: qtest,v 1.6 1997/10/26 12:12:35 alexis Exp alexis $'
d38 58
a95 2
DFLT_MINQ=80
DFLT_COUNT=5
d100 1
a100 1
        echo "Usage: $PROGNAME [ -q <min_qual> ] [ -c <count> ] [ ip_addr ]"
d106 126
a231 1
main()
d233 1
a233 2
    MINQ=$DFLT_MINQ
    COUNT=$DFLT_COUNT
d235 1
a235 1
    while [ "X$1" != X ]; do
d237 2
a238 9
            -V) echo "$PROGNAME version $VERSION" 
                exit 0 ;;
	    -c) [ "X$2" = X ] && usage
	        COUNT=$2
	        shift ;;
	    -q) [ "X$2" = X ] && usage
	        MINQ=$2
	        shift ;;
            -*) usage ;;
d244 73
a316 2
    [ "X$1" = X -o "X$2" != X ] && usage
    HOST=$1
d318 4
a321 5
    echo "$PROGNAME: INFO: running, host=$HOST, minq=$MINQ, count=$COUNT"
    LOSS=`ping -c $COUNT -i 1 -n -q $HOST 2>/dev/null | sed -n -e 's/^.*ed, \([0-9].*\)% pack.*$/\1/p'`
    QUAL=`expr 100 - $LOSS`
    echo "$PROGNAME: quality \
$QUAL %"
d323 10
a332 1
    [ $QUAL -ge $MINQ ]
d335 7
@


1.6
log
@stamped for release 1.0.6
@
text
@d5 1
a5 1
RCS_ID_QTEST='$Id: qtest,v 1.5 1997/10/20 17:53:40 alexis Exp alexis $'
d46 2
a47 1
    echo "$PROGNAME: quality $QUAL %"
@


1.5
log
@fiddled :)
@
text
@d5 1
a5 1
RCS_ID_QTEST='$Id: qtest,v 1.4 1997/02/15 11:32:26 alexis Exp alexis $'
@


1.4
log
@improved version info.
@
text
@d5 1
a5 1
{ expr $VERSION : 'P.*R' > /dev/null; } && VERSION="`echo '$Id$' | cut -f3 -d' '` (development)"
d7 2
a8 8
[ "X$3" != X ] && { echo "Usage: $PROGNAME [ min_qual ] [ ip_addr ]" >&2; exit 1; }
MINQ=${1:-50}
HOST=${2:-158.152.1.65}

echo "$PROGNAME: running, host=$HOST, minq=$MINQ"
LOSS=`ping -c 10 -i 1 -n -q $HOST 2>/dev/null | sed -n -e 's/^.*ed, \([0-9].*\)% pack.*$/\1/p'`
QUAL=`expr 100 - $LOSS`
echo "$PROGNAME: quality $QUAL %"
d10 44
a53 1
[ $QUAL -ge $MINQ ]
@


1.3
log
@MILEPOST - MAY NOT WORK
@
text
@d4 2
@


1.2
log
@WORKING MILESTONE
@
text
@d5 1
a5 1
[ "X$3" != X ] && { echo "Usage: $PROGNAME min_qual ip_addr" >&2; exit 1; }
@


1.1
log
@Initial revision
@
text
@d5 3
a7 1
DEFAULT_HOST=158.152.1.65
d9 4
a12 2
[ "X$2" != X ] && { echo "Usage: $PROGNAME ip_addr" >&2; exit 101; }
[ "X$1" = X ] && HOST=$DEFAULT_HOST || HOST=$1
d14 1
a14 2
echo "$PROGNAME: running"
exit `ping -c 10 -i 1 -n -q $HOST | sed -n -e 's/^.*ed, \([0-9].*\)% pack.*$/\1/p'`
@