# $Id: check_common_fn,v 1.1 2003/03/24 19:01:10 rocky Exp $

have_cmp() {
  if cmp /dev/null /dev/null > /dev/null 2>&1; then
    :
  else
    
    return 1;
  fi
  
  if cmp /dev/zero /dev/null > /dev/null 2>&1; then
    return 1;
  fi
  
  return 0;
}

check_result() {
  RC=$1
  shift
  msg=$*
  if test $RC -ne 0 ; then 
    if test $RC -ne 77 ; then
      echo "$0: $msg failed."
      exit $RC
    else 
      echo "$0: $msg skipped."
    fi
  else 
    echo "$0: $msg ok."
  fi
}

test_cdinfo() {

  opts="$1"
  outfile="$2"
  rightfile="$3"

  CDINFO="../src/cdinfo"

  if [ ! -x ${CDINFO} ]; then
    echo "$0: No cdinfo"
    return 1
  fi

  if ${CDINFO} ${opts} >${outfile} 2>&1 ; then 
    if have_cmp; then
      if cmp ${outfile} ${rightfile} ; then
	rm -f $outfile
	return 0
      else
	return 3
      fi
    else
      echo "$0: No cmp(1) found - cannot test cdinfo"
      rm -f $outfile
      return 77
    fi
  else
    echo "$0: ${CDINFO} ${opts} failed"
    return 2
  fi

}

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#;;; mode:shell-script ***
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