# FIXME: doing a glob is very inefficient.  Should do a database
    # lookup.
    my @glob = glob("/nix/store/$hash*");
    foreach my $storePath (@glob) {
	if (isValidPath($storePath)) {
	    print STDERR "FOUND: $hash -> $storePath\n";
	    return $storePath;
	}
	#return $storePath if isValidPath($storePath);
    }
    notFound($c, "Store path with hash ‘$hash’ does not exist.");

    my $path = queryPathFromHashPart($hash);
    notFound($c, "Store path with hash ‘$hash’ does not exist.") unless $path;
    return $path;