>Number: 10611 >Category: bin >Synopsis: timed enhancement >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Mon Mar 15 21:20:01 PST 1999 >Closed-Date: >Last-Modified: >Originator: Brian Haug >Release: FreeBSD 3.1-RELEASE i386 (submitting from different machine) >Organization: None >Environment: Generic BSD environemtn with timed protocol in use >Description: Updated man page to correctly describe what happens when timed starts (does doesn't automatically set the date, but will adjust if delta is reasonable). Added -a option which will only adjust the time with adjtime(2), and a -A option which specifies the max adjustment which will be made with adjtime(2). >How-To-Repeat: Not applicable? >Fix: The BRH define was used for me to keep track of the changes. I suggest removinging it. *** /usr/src/usr.sbin/timed/timed/timed.c.old Sun Mar 14 08:27:39 1999 --- /usr/src/usr.sbin/timed/timed/timed.c Sun Mar 14 08:30:18 1999 *************** *** 80,85 **** --- 80,88 ---- struct netinfo *nettab = 0; struct netinfo *slavenet; int Mflag; + #ifdef BRH + int aflag; + #endif int justquit = 0; int debug; *************** *** 114,119 **** --- 117,125 ---- #endif static void usage __P((void)); + #ifdef BRH + int MAXADJ = DEF_MAXADJ; + #endif /* * The timedaemons synchronize the clocks of hosts in a local area network. *************** *** 176,183 **** --- 182,202 ---- #endif /* sgi */ opterr = 0; + #ifdef BRH + while ((c = getopt(argc, argv, "Mtdn:i:F:G:P:aA:")) != -1) { + #else while ((c = getopt(argc, argv, "Mtdn:i:F:G:P:")) != -1) { + #endif switch (c) { + #ifdef BRH + case 'A': + MAXADJ = atol(optarg); + break; + case 'a': + /* only do adjtime */ + aflag = 1; + break; + #endif case 'M': Mflag = 1; break; *************** *** 550,556 **** --- 569,579 ---- "usage: timed [-dtM] [-i net|-n net] [-F host1 host2 ...] [-G netgp]\n"); #else fprintf(stderr, + #ifdef BRH + "usage: timed [-dtMa] [-A max_adjtime ] [-i net|-n net] [-F host1 host2 ...]\n"); + #else "usage: timed [-dtM] [-i net|-n net] [-F host1 host2 ...]\n"); + #endif #endif /* HAVENIS */ #endif /* sgi */ exit(1); *** /usr/src/usr.sbin/timed/timed/timed.8.old Tue Oct 21 23:19:49 1997 --- /usr/src/usr.sbin/timed/timed/timed.8 Sun Mar 14 08:27:14 1999 *************** *** 45,50 **** --- 45,52 ---- .Op Fl i Ar network .Op Fl n Ar network .Op Fl F Ar host1 host2 ... + .Op Fl a + .Op Fl A Ar max_adjtime .Sh DESCRIPTION This is a time server daemon and is normally invoked *************** *** 67,76 **** scheme. When .Nm ! is started on a machine, it asks the master for the network time ! and sets the host's clock to that time. ! After that, it accepts synchronization messages periodically sent by ! the master and calls .Xr adjtime 2 to perform the needed corrections on the host's clock. .Pp --- 69,77 ---- scheme. When .Nm ! is started on a machine, searches for a master and starts adjusting the time ! based on messages received. ! If the clock correction is large the time is explicitly set, otherwise it calls .Xr adjtime 2 to perform the needed corrections on the host's clock. .Pp *************** *** 153,158 **** --- 154,172 ---- If it finds masters on more than one network, it chooses one network on which to be a "slave," and then periodically checks the other networks to see if the masters there have disappeared. + The + .Fl a + option forces + .Nm timed + to only adjust the time using the + .Xr adjtime 2 ) , + system call. + The + .Fl A + option forces + .Nm timed + to explicitly set the time if the difference in the clocks exceeds + the value of max_adjtime seconds. .Pp One way to synchronize a group of machines is to use an .Tn NTP *** /usr/src/usr.sbin/timed/timed/globals.h.old Fri Oct 31 05:33:05 1997 --- /usr/src/usr.sbin/timed/timed/globals.h Sun Mar 14 08:48:05 1999 *************** *** 1,3 **** --- 1,4 ---- + #define BRH /*- * Copyright (c) 1985, 1993 * The Regents of the University of California. All rights reserved. *************** *** 73,79 **** --- 74,86 ---- #define SAMPLEINTVL 240 /* synch() freq for master in sec */ + #ifdef BRH + #define MAXADJ (maxadj) /* now a variable */ + extern int maxadj; + #define DEF_MAXADJ 20 /* max adjtime() correction in sec */ + #else #define MAXADJ 20 /* max adjtime() correction in sec */ + #endif #define MAX_TRIM 3000000 /* max drift in nsec/sec, 0.3% */ #define BIG_ADJ (MAX_TRIM/1000*SAMPLEINTVL*2) /* max good adj */ *** /usr/src/usr.sbin/timed/timed/master.c.old Mon Mar 15 10:20:57 1999 --- /usr/src/usr.sbin/timed/timed/master.c Sun Mar 14 08:32:36 1999 *************** *** 379,385 **** --- 379,389 ---- adj_msg_time(msg,&otime); timevalsub(&ntime, &msg->tsp_time, &otime); + #ifdef BRH + if (aflag || (ntime.tv_sec < MAXADJ && ntime.tv_sec > -MAXADJ)) { + #else if (ntime.tv_sec < MAXADJ && ntime.tv_sec > -MAXADJ) { + #endif /* * do not change the clock if we can adjust it */ *** /usr/src/usr.sbin/timed/timed/slave.c.old Mon Mar 15 09:57:54 1999 --- /usr/src/usr.sbin/timed/timed/slave.c Sun Mar 14 08:34:26 1999 *************** *** 282,288 **** --- 282,292 ---- setmaster(msg); timevalsub(&ntime, &msg->tsp_time, &otime); + #ifdef BRH + if (aflag || (ntime.tv_sec < MAXADJ && ntime.tv_sec > -MAXADJ)) { + #else if (ntime.tv_sec < MAXADJ && ntime.tv_sec > -MAXADJ) { + #endif /* * do not change the clock if we can adjust it */ *** /usr/src/usr.sbin/timed/timed/correct.c.old Mon Mar 15 10:23:28 1999 --- /usr/src/usr.sbin/timed/timed/correct.c Mon Mar 15 10:22:40 1999 *************** *** 128,134 **** --- 128,138 ---- return; adj = *corr; + #ifdef BRH + if (aflag || (adj.tv_sec < MAXADJ && adj.tv_sec > - MAXADJ)) { + #else if (adj.tv_sec < MAXADJ && adj.tv_sec > - MAXADJ) { + #endif delta = adj.tv_sec*1000000 + adj.tv_usec; /* If the correction is less than the minimum round * trip time for an ICMP packet, and thus >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
Updated man page to correctly describe what happens when timed starts (does doesn't automatically set the date, but will adjust if delta is reasonable). Added -a option which will only adjust the time with adjtime(2), and a -A option which specifies the max adjustment which will be made with adjtime(2). Fix: The BRH define was used for me to keep track of the changes. I suggest removinging it. How-To-Repeat: Not applicable?
I don't think timed(8) is worth any effort in 2015. Please use something more efficient such as ntpd.