mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
f2bea4da2e
Several network-related structures are defined conditionally under
__USE_MISC, but unconditionally used by other headers. The path of
least resistance is usually to condition the uses on __USE_MISC as
well.
* sysdeps/mach/hurd/net/if_ppp.h
* sysdeps/unix/sysv/linux/net/if_ppp.h:
Only define struct ifpppstatsreq and struct ifpppcstatsreq
if __USE_MISC is defined, to ensure struct ifreq is declared.
* inet/netinet/ether.h: Condition all function prototypes
on __USE_MISC, to ensure struct ether_addr is declared.
sys/socket.h defines struct osockaddr only under __USE_MISC, whereas
protocols/talkd.h requires it unconditionally. Here it doesn't make
sense to condition the entire body of protocols/talkd.h on __USE_MISC.
Rather than complicate sys/socket.h with a __need macro or duplicate
the definition, I am introducing a new concept: tiny headers named
bits/types/TYPE.h that define TYPE and nothing else. This can, I hope,
ultimately replace *all* the __need macros. The guard macro for such
headers will be __TYPE_defined, just in case application or third-party
library code is looking at them.
* socket/bits/types/struct_osockaddr.h: New header.
* include/bits/types/struct_osockaddr.h: New wrapper.
* socket/Makefile: Install the new header.
* socket/sys/socket.h, inet/protocols/talkd.h:
Refer to bits/types/struct_osockaddr.h for the definition of
struct osockaddr.
116 lines
4.7 KiB
C
116 lines
4.7 KiB
C
/*
|
|
* 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.
|
|
* 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 _PROTOCOLS_TALKD_H
|
|
#define _PROTOCOLS_TALKD_H 1
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <stdint.h>
|
|
#include <bits/types/struct_osockaddr.h>
|
|
|
|
/*
|
|
* Client->server request message format.
|
|
*/
|
|
typedef struct {
|
|
unsigned char vers; /* protocol version */
|
|
unsigned char type; /* request type, see below */
|
|
unsigned char answer; /* not used */
|
|
unsigned char pad;
|
|
uint32_t id_num; /* message id */
|
|
struct osockaddr addr; /* old (4.3) style */
|
|
struct osockaddr ctl_addr; /* old (4.3) style */
|
|
int32_t 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 {
|
|
unsigned char vers; /* protocol version */
|
|
unsigned char type; /* type of request message, see below */
|
|
unsigned char answer; /* response to request message, see below */
|
|
unsigned char pad;
|
|
uint32_t 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 /* protocols/talkd.h */
|