#!/bin/sh --
# This is a generic shell script for messaging Mosaic written by
# tanmoy@lanl.gov based on an idea by Paul F. Mende and
# an implementation by krobison@nucleus.harvard.edu
#
# It takes two params: an URL and a base URL to interpret it with
# respect to. It currently ignores this second parameter.
#
# stdout to stderr anyway
exec >&2
# Note that it sets PATH to null to avoid security 
# problems.
PATH=
MOSAIC=/usr/local/bin/Mosaic
# Find my invoking Mosaic. (pid with our pgid)
mypid=`/bin/ps -jx$$ | /usr/ucb/tail -1 | /bin/cut -c 12-17`
mypid=`/bin/expr $mypid`
if /bin/ps -lww$mypid | /bin/grep Mosaic > /dev/null; then /bin/true;
else
  if [ -r ${HOME}/.mosaicpid ]; then
    mypid=`/bin/cat ${HOME}/.mosaicpid`
    mypid=`/bin/expr $mypid`
    if /bin/ps -lww$mypid | /bin/grep Mosaic > /dev/null; then /bin/true;
    else
      ${MOSAIC} "$1" &
      exit 0
    fi
  else
    ${MOSAIC} "$1" &
    exit 0
  fi
fi
/bin/rm -f /tmp/Mosaic.$mypid
/bin/echo goto >/tmp/Mosaic.$mypid
/bin/echo "$1" >>/tmp/Mosaic.$mypid
/bin/kill -USR1 $mypid