if cvs update fails, attempt again after 5 seconds and retry 50 times

cd curl

echo "testcurl: update from CVS"

cvsup() {

  # update quietly to the latest CVS

  echo "testcurl: run cvs up"

  cvs -Q up -dP 2>&1

  cvsstat=$?

  # return (1 - RETURNVALUE) so that errors return 0 while goodness

  # returns 1

  return `expr 1 - $?`

}

att="0"

while cvsup; do

  att=`expr $att + 1`

  echo "testcurl: failed CVS update attempt number $att."

  if [ $att -gt 50 ]; then

    cvsstat="BADNESS"

    break # get out of the loop

  fi

  sleep 5

done

echo "testcurl: cvs returned: $cvsstat"

if [ "$cvsstat" -ne "0" ]; then