+++ /dev/null
-/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1983, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)talkd.h 8.1 (Berkeley) 6/2/93
- */
-
-#ifndef _TALKD_H_
-#define _TALKD_H_
-
-/*
- * This describes the protocol used by the talk server and clients.
- *
- * The talk server acts a repository of invitations, responding to
- * requests by clients wishing to rendezvous for the purpose of
- * holding a conversation. In normal operation, a client, the caller,
- * initiates a rendezvous by sending a CTL_MSG to the server of
- * type LOOK_UP. This causes the server to search its invitation
- * tables to check if an invitation currently exists for the caller
- * (to speak to the callee specified in the message). If the lookup
- * fails, the caller then sends an ANNOUNCE message causing the server
- * to broadcast an announcement on the callee's login ports requesting
- * contact. When the callee responds, the local server uses the
- * recorded invitation to respond with the appropriate rendezvous
- * address and the caller and callee client programs establish a
- * stream connection through which the conversation takes place.
- */
-
-/*
- * Client->server request message format.
- */
-typedef struct {
- u_char vers; /* protocol version */
- u_char type; /* request type, see below */
- u_char answer; /* not used */
- u_char pad;
- u_long id_num; /* message id */
- struct osockaddr addr; /* old (4.3) style */
- struct osockaddr ctl_addr; /* old (4.3) style */
- long pid; /* caller's process id */
-#define NAME_SIZE 12
- char l_name[NAME_SIZE];/* caller's name */
- char r_name[NAME_SIZE];/* callee's name */
-#define TTY_SIZE 16
- char r_tty[TTY_SIZE];/* callee's tty name */
-} CTL_MSG;
-
-/*
- * Server->client response message format.
- */
-typedef struct {
- u_char vers; /* protocol version */
- u_char type; /* type of request message, see below */
- u_char answer; /* respose to request message, see below */
- u_char pad;
- u_long id_num; /* message id */
- struct osockaddr addr; /* address for establishing conversation */
-} CTL_RESPONSE;
-
-#define TALK_VERSION 1 /* protocol version */
-
-/* message type values */
-#define LEAVE_INVITE 0 /* leave invitation with server */
-#define LOOK_UP 1 /* check for invitation by callee */
-#define DELETE 2 /* delete invitation by caller */
-#define ANNOUNCE 3 /* announce invitation by caller */
-
-/* answer values */
-#define SUCCESS 0 /* operation completed properly */
-#define NOT_HERE 1 /* callee not logged in */
-#define FAILED 2 /* operation failed for unexplained reason */
-#define MACHINE_UNKNOWN 3 /* caller's machine name unknown */
-#define PERMISSION_DENIED 4 /* callee's tty doesn't permit announce */
-#define UNKNOWN_REQUEST 5 /* request has invalid type value */
-#define BADVERSION 6 /* request has invalid protocol version */
-#define BADADDR 7 /* request has invalid addr value */
-#define BADCTLADDR 8 /* request has invalid ctl_addr value */
-
-/*
- * Operational parameters.
- */
-#define MAX_LIFE 60 /* max time daemon saves invitations */
-/* RING_WAIT should be 10's of seconds less than MAX_LIFE */
-#define RING_WAIT 30 /* time to wait before resending invitation */
-
-#endif /* !_TALKD_H_ */
projects / apple / xnu.git / blobdiff