add MAXADJ, and some comments

[unix-history] / usr / src / usr.sbin / timed / timed / globals.h

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/

/*      @(#)globals.h   2.4     (Berkeley)      %G%     */

#include <sys/param.h>
#include <stdio.h>
#include <sys/time.h>
#include <errno.h>
#include <syslog.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>

extern int errno;
extern int sock;

#define SAMPLEINTVL     240             /* synch() freq for master, sec */
#define MAXADJ          20              /* max correction (sec) for adjtime */
/*
* Parameters for network time measurement
* of each host using ICMP timestamp requests.
*/
#define RANGE           20              /* best expected round-trip time, ms */
#define MSGS            5               /* # of timestamp replies to average */
#define TRIALS          10              /* max # of timestamp echos sent */

#define MINTOUT         360
#define MAXTOUT         900

#define GOOD            1
#define UNREACHABLE     2
#define NONSTDTIME      3
#define HOSTDOWN        0x7fffffff

#define OFF     0
#define ON      1

/*
* Global and per-network states.
*/
#define NOMASTER        0               /* no master on any network */
#define SLAVE           1
#define MASTER          2
#define IGNORE          4
#define ALL             (SLAVE|MASTER|IGNORE)
#define SUBMASTER       (SLAVE|MASTER)

#define NHOSTS          100     /* max number of hosts controlled by timed */

struct host {
       char *name;
       struct sockaddr_in addr;
       long delta;
       u_short seq;
};

struct netinfo {
       struct netinfo *next;
       u_long net;
       u_long mask;
       struct in_addr my_addr;
       struct sockaddr_in dest_addr;   /* broadcast addr or point-point */
       long status;
};

extern struct netinfo *nettab;
extern int status;
extern int trace;
extern int sock;
extern struct sockaddr_in from;
extern struct netinfo *fromnet, *slavenet;
extern FILE *fd;
extern char hostname[];
extern char tracefile[];
extern struct host hp[];
extern int backoff;
extern long delay1, delay2;
extern int slvcount;
extern int nslavenets;          /* Number of nets were I could be a slave */
extern int nmasternets;         /* Number of nets were I could be a master */
extern int nignorednets;        /* Number of ignored nets */
extern int nnets;               /* Number of nets I am connected to */

char *strcpy(), *malloc();