-socket(SOCK, PF_UNIX, SOCK_STREAM, 0) or die "socket: $!";
-connect(SOCK, sockaddr_un($fs_passwdd_socket)) or die "connect: $!";
-print SOCK join("\n", $me, $old_password, $new_password, '', ''), "\n";
-SOCK->flush;
-my $error = <SOCK>;
-chomp $error;
+my $rv = passwd(
+ 'username' => $me,
+ 'domain' => $domain,
+ 'old_password' => $old_password,
+ 'new_password' => $new_password,
+);
+
+my $error = $rv->{error};