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
115 lines
3.7 KiB
Plaintext
115 lines
3.7 KiB
Plaintext
@node ntp-wait Invocation
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@section Invoking ntp-wait
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@pindex ntp-wait
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@cindex Wait for ntpd to stabilize the system clock
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@ignore
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#
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# EDIT THIS FILE WITH CAUTION (invoke-ntp-wait.texi)
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#
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# It has been AutoGen-ed June 23, 2020 at 02:21:32 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 agtexi-cmd.tpl
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@end ignore
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@code{ntp-wait}
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will send at most
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@kbd{num-tries}
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queries to
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@code{ntpd(8)},
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sleeping for
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@kbd{secs-between-tries}
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after each status return that says
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@code{ntpd(8)}
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has not yet produced a synchronized and stable system clock.
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@code{ntp-wait}
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will do this quietly, unless the
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@code{-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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@kbd{ntpd} @kbd{-g}
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has set the time.
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This section was generated by @strong{AutoGen},
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using the @code{agtexi-cmd} template and the option descriptions for the @code{ntp-wait} program.
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@menu
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* ntp-wait usage:: ntp-wait help/usage (@option{--help})
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* ntp-wait tries:: tries option (-n)
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* ntp-wait sleep:: sleep option (-s)
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* ntp-wait verbose:: verbose option (-v)
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* ntp-wait exit status:: exit status
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* ntp-wait Authors:: Authors
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* ntp-wait Notes:: Notes
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@end menu
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@node ntp-wait usage
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@subsection ntp-wait help/usage (@option{--help})
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@cindex ntp-wait help
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This is the automatically generated usage text for ntp-wait.
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The text printed is the same whether selected with the @code{help} option
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(@option{--help}) or the @code{more-help} option (@option{--more-help}). @code{more-help} will print
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the usage text by passing it through a pager program.
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@code{more-help} is disabled on platforms without a working
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@code{fork(2)} function. The @code{PAGER} environment variable is
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used to select the program, defaulting to @file{more}. Both will exit
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with a status code of 0.
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@exampleindent 0
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@example
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ntp-wait - Wait for ntpd to stabilize the system clock - Ver. 4.2.8p15
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USAGE: ntp-wait [ -<flag> [<val>] | --<name>[@{=| @}<val>] ]...
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-n, --tries=num Number of times to check ntpd
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-s, --sleep=num How long to sleep between tries
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-v, --verbose Be verbose
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-?, --help Display usage information and exit
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--more-help Pass the extended usage text through a pager
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Options are specified by doubled hyphens and their name or by a single
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hyphen and the flag character.
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@end example
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@exampleindent 4
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@node ntp-wait tries
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@subsection tries option (-n)
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@cindex ntp-wait-tries
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This is the ``number of times to check ntpd'' option.
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This option takes a number argument.
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The maximum number of times we will check @code{ntpd} to see if
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it has been able to synchronize and stabilize the system clock.
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@node ntp-wait sleep
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@subsection sleep option (-s)
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@cindex ntp-wait-sleep
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This is the ``how long to sleep between tries'' option.
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This option takes a number argument @file{secs-between-tries}.
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We will sleep for @file{secs-between-tries} after each query
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of @code{ntpd} that returns "the time is not yet stable".
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@node ntp-wait verbose
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@subsection verbose option (-v)
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@cindex ntp-wait-verbose
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This is the ``be verbose'' option.
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By default, @code{ntp-wait} is silent.
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With this option, @code{ntp-wait} will provide status information.
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@node ntp-wait exit status
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@subsection ntp-wait exit status
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One of the following exit values will be returned:
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@table @samp
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@item 0 (EXIT_SUCCESS)
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Successful program execution.
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@item 1 (EXIT_FAILURE)
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The operation failed or the command syntax was not valid.
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@end table
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@node ntp-wait Authors
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@subsection ntp-wait Authors
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@node ntp-wait Notes
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@subsection ntp-wait Notes
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