2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
120 lines
4.8 KiB
C
120 lines
4.8 KiB
C
/* $NetBSD: talkd.h,v 1.10 2005/12/26 19:01:47 perry Exp $ */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)talkd.h 8.1 (Berkeley) 6/2/93
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*/
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#ifndef _PROTOCOLS_TALKD_H_
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#define _PROTOCOLS_TALKD_H_
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/*
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* This describes the protocol used by the talk server and clients.
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*
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* The talk server acts a repository of invitations, responding to
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* requests by clients wishing to rendezvous for the purpose of
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* holding a conversation. In normal operation, a client, the caller,
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* initiates a rendezvous by sending a CTL_MSG to the server of
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* type LOOK_UP. This causes the server to search its invitation
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* tables to check if an invitation currently exists for the caller
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* (to speak to the callee specified in the message). If the lookup
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* fails, the caller then sends an ANNOUNCE message causing the server
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* to broadcast an announcement on the callee's login ports requesting
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* contact. When the callee responds, the local server uses the
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* recorded invitation to respond with the appropriate rendezvous
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* address and the caller and callee client programs establish a
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* stream connection through which the conversation takes place.
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*/
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/*
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* 4.3 compat sockaddr
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*/
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struct talkd_sockaddr {
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uint16_t sa_family; /* address family */
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char sa_data[14]; /* up to 14 bytes of direct address */
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};
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/*
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* Client->server request message format.
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*/
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typedef struct {
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u_char vers; /* protocol version */
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u_char type; /* request type, see below */
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u_char answer; /* not used */
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u_char pad;
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uint32_t id_num; /* message id */
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struct talkd_sockaddr addr; /* old (4.3) style */
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struct talkd_sockaddr ctl_addr;/* old (4.3) style */
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int32_t pid; /* caller's process id */
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#define NAME_SIZE 12
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char l_name[NAME_SIZE]; /* caller's name */
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char r_name[NAME_SIZE]; /* callee's name */
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#define TTY_SIZE 16
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char r_tty[TTY_SIZE]; /* callee's tty name */
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} CTL_MSG;
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/*
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* Server->client response message format.
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*/
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typedef struct {
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u_char vers; /* protocol version */
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u_char type; /* type of request message, see below */
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u_char answer; /* respose to request message, see below */
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u_char pad;
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uint32_t id_num; /* message id */
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struct talkd_sockaddr addr; /* address for establishing conversation */
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} CTL_RESPONSE;
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#define TALK_VERSION 1 /* protocol version */
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/* message type values */
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#define LEAVE_INVITE 0 /* leave invitation with server */
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#define LOOK_UP 1 /* check for invitation by callee */
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#define DELETE 2 /* delete invitation by caller */
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#define ANNOUNCE 3 /* announce invitation by caller */
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/* answer values */
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#define SUCCESS 0 /* operation completed properly */
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#define NOT_HERE 1 /* callee not logged in */
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#define FAILED 2 /* operation failed for unexplained reason */
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#define MACHINE_UNKNOWN 3 /* caller's machine name unknown */
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#define PERMISSION_DENIED 4 /* callee's tty doesn't permit announce */
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#define UNKNOWN_REQUEST 5 /* request has invalid type value */
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#define BADVERSION 6 /* request has invalid protocol version */
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#define BADADDR 7 /* request has invalid addr value */
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#define BADCTLADDR 8 /* request has invalid ctl_addr value */
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/*
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* Operational parameters.
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*/
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#define MAX_LIFE 60 /* max time daemon saves invitations */
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/* RING_WAIT should be 10's of seconds less than MAX_LIFE */
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#define RING_WAIT 30 /* time to wait before resending invitation */
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#endif /* !_PROTOCOLS_TALKD_H_ */
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