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
123 lines
3.4 KiB
Plaintext
123 lines
3.4 KiB
Plaintext
.de1 NOP
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. it 1 an-trap
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.TH ntp-wait 1ntp-waitman "23 Jun 2020" "ntp (4.2.8p15)" "User Commands"
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.\"
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.\" EDIT THIS FILE WITH CAUTION (in-mem file)
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.\"
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.\" It has been AutoGen-ed June 23, 2020 at 02:21:33 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 agman-cmd.tpl
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.SH NAME
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\f\*[B-Font]ntp-wait\fP
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\- Wait for ntpd to stabilize the system clock
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.SH SYNOPSIS
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\f\*[B-Font]ntp-wait\fP
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.\" Mixture of short (flag) options and long options
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[\f\*[B-Font]\-flags\f[]]
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[\f\*[B-Font]\-flag\f[] [\f\*[I-Font]value\f[]]]
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[\f\*[B-Font]\-\-option-name\f[][[=| ]\f\*[I-Font]value\f[]]]
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.sp \n(Ppu
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.ne 2
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All arguments must be options.
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.sp \n(Ppu
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.ne 2
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.SH DESCRIPTION
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\f\*[B-Font]ntp-wait\fP
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will send at most
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\f\*[I-Font]num-tries\f[]
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queries to
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\fCntpd\f[]\fR(8)\f[],
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sleeping for
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\f\*[I-Font]secs-between-tries\f[]
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after each status return that says
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\fCntpd\f[]\fR(8)\f[]
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has not yet produced a synchronized and stable system clock.
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.sp \n(Ppu
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.ne 2
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\f\*[B-Font]ntp-wait\fP
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will do this quietly, unless the
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\f\*[B-Font]\-v\f[]
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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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\f\*[I-Font]ntpd\f[] \f\*[I-Font]\-g\f[]
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has set the time.
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.SH "OPTIONS"
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.TP
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.NOP \f\*[B-Font]\-n\f[] \f\*[I-Font]number\f[], \f\*[B-Font]\-\-tries\f[]=\f\*[I-Font]number\f[]
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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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\f\*[I-Font]number\f[]
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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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.TP
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.NOP \f\*[B-Font]\-s\f[] \f\*[I-Font]secs\-between\-tries\f[], \f\*[B-Font]\-\-sleep\f[]=\f\*[I-Font]secs\-between\-tries\f[]
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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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\f\*[I-Font]secs\-between\-tries\f[]
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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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.TP
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.NOP \f\*[B-Font]\-v\f[], \f\*[B-Font]\-\-verbose\f[]
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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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.TP
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.NOP \f\*[B-Font]\-\&?\f[], \f\*[B-Font]\-\-help\f[]
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Display usage information and exit.
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.TP
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.NOP \f\*[B-Font]\-\&!\f[], \f\*[B-Font]\-\-more-help\f[]
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Pass the extended usage information through a pager.
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.TP
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.NOP \f\*[B-Font]\-v\f[] [{\f\*[I-Font]v|c|n\f[] \f\*[B-Font]\-\-version\f[] [{\f\*[I-Font]v|c|n\f[]}]}]
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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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.PP
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.SH "EXIT STATUS"
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One of the following exit values will be returned:
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.TP
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.NOP 0 " (EXIT_SUCCESS)"
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Successful program execution.
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.TP
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.NOP 1 " (EXIT_FAILURE)"
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The operation failed or the command syntax was not valid.
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.TP
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.NOP 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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.PP
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.SH AUTHORS
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.NOP "Harlan Stenn"
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.br
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.SH NOTES
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This document corresponds to version @VERSION@ of NTP.
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.sp \n(Ppu
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.ne 2
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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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