Update 4.2.8p14 --> 4.2.8p15 Summary: Systems that use a CMAC algorithm in ntp.keys will not release a bit of memory on each packet that uses a CMAC keyid, eventually causing ntpd to run out of memory and fail. The CMAC cleanup from https://bugs.ntp.org/3447, part of ntp-4.2.8p11, introduced a bug whereby the CMAC data structure was no longer completely removed. MFC after: 3 days Security: NTP Bug 3661
96 lines
2.7 KiB
Plaintext
96 lines
2.7 KiB
Plaintext
.Dd June 23 2020
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.Dt NTP_WAIT 1ntp-waitmdoc User Commands
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.Os
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.\" EDIT THIS FILE WITH CAUTION (ntp-wait-opts.mdoc)
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.\"
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.\" It has been AutoGen-ed June 23, 2020 at 02:21:30 AM by AutoGen 5.18.5
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.\" From the definitions ntp-wait-opts.def
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.\" and the template file agmdoc-cmd.tpl
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.Sh NAME
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.Nm ntp-wait
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.Nd Wait for ntpd to stabilize the system clock
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.Sh SYNOPSIS
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.Nm
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.\" Mixture of short (flag) options and long options
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.Op Fl flags
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.Op Fl flag Op Ar value
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.Op Fl \-option\-name Ns Oo Oo Ns "=| " Oc Ns Ar value Oc
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.Pp
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All arguments must be options.
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.Pp
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.Sh DESCRIPTION
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.Nm
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will send at most
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.Ar num\-tries
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queries to
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.Xr ntpd 8 ,
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sleeping for
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.Ar secs\-between\-tries
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after each status return that says
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.Xr ntpd 8
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has not yet produced a synchronized and stable system clock.
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.Pp
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.Nm
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will do this quietly, unless the
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.Fl v
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flag is provided.
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This can be useful at boot time, to delay the boot sequence until after
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.Ar ntpd \-g
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has set the time.
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.Sh "OPTIONS"
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.Bl -tag
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.It Fl n Ar number , Fl \-tries Ns = Ns Ar number
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Number of times to check ntpd.
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This option takes an integer number as its argument.
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The default
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.Ar number
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for this option is:
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.ti +4
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100
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.sp
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The maximum number of times we will check \fBntpd\fP to see if
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it has been able to synchronize and stabilize the system clock.
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.It Fl s Ar secs\-between\-tries , Fl \-sleep Ns = Ns Ar secs\-between\-tries
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How long to sleep between tries.
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This option takes an integer number as its argument.
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The default
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.Ar secs\-between\-tries
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for this option is:
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.ti +4
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6
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.sp
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We will sleep for \fIsecs\-between\-tries\fP after each query
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of \fBntpd\fP that returns "the time is not yet stable".
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.It Fl v , Fl \-verbose
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Be verbose.
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.sp
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By default, \fBntp\-wait\fP is silent.
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With this option, \fBntp\-wait\fP will provide status information.
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.It Fl \&? , Fl \-help
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Display usage information and exit.
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.It Fl \&! , Fl \-more\-help
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Pass the extended usage information through a pager.
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.It Fl v Op Brq Ar v|c|n Fl \-version Op Brq Ar v|c|n
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Output version of program and exit. The default mode is `v', a simple
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version. The `c' mode will print copyright information and `n' will
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print the full copyright notice.
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.El
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.Sh "EXIT STATUS"
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One of the following exit values will be returned:
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.Bl -tag
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.It 0 " (EXIT_SUCCESS)"
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Successful program execution.
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.It 1 " (EXIT_FAILURE)"
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The operation failed or the command syntax was not valid.
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.It 70 " (EX_SOFTWARE)"
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libopts had an internal operational error. Please report
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it to autogen\-users@lists.sourceforge.net. Thank you.
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.El
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.Sh AUTHORS
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.An "Harlan Stenn"
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.Sh NOTES
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This document corresponds to version @VERSION@ of NTP.
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.Pp
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This manual page was \fIAutoGen\fP\-erated from the \fBntp\-wait\fP
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option definitions.
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