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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY COMMANDNAME "askpass-fifo">
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<!ENTITY TIMESTAMP "2017-02-23">
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<!ENTITY % common SYSTEM "../common.ent">
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<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
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<title>Mandos Manual</title>
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<!-- NWalsh’s docbook scripts use this to generate the footer: -->
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<productname>Mandos</productname>
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<productnumber>&version;</productnumber>
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<date>&TIMESTAMP;</date>
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<firstname>Björn</firstname>
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<surname>Påhlsson</surname>
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<email>belorn@recompile.se</email>
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<firstname>Teddy</firstname>
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<surname>Hogeborn</surname>
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<email>teddy@recompile.se</email>
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<holder>Teddy Hogeborn</holder>
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<holder>Björn Påhlsson</holder>
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<refentrytitle>&COMMANDNAME;</refentrytitle>
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<manvolnum>8mandos</manvolnum>
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<refname><command>&COMMANDNAME;</command></refname>
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<refpurpose>Mandos plugin to get a password from a
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<command>&COMMANDNAME;</command>
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<refsect1 id="description">
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<title>DESCRIPTION</title>
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This program reads a password from a <acronym>FIFO</acronym> and
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outputs it to standard output.
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This program is not very useful on its own. This program is
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really meant to run as a plugin in the <application
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>Mandos</application> client-side system, where it is used as a
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fallback and alternative to retrieving passwords from a
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<application >Mandos</application> server.
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This program is meant to be imitate a feature of the
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<command>askpass</command> program, so that programs written to
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interface with it can keep working under the
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<application>Mandos</application> system.
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<refsect1 id="options">
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<title>OPTIONS</title>
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This program takes no options.
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<refsect1 id="exit_status">
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<title>EXIT STATUS</title>
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If exit status is 0, the output from the program is the password
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as it was read. Otherwise, if exit status is other than 0, the
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program was interrupted or encountered an error, and any output
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so far could be corrupt and/or truncated, and should therefore
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<refsect1 id="files">
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<term><filename>/lib/cryptsetup/passfifo</filename></term>
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This is the <acronym>FIFO</acronym> where this program
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will read the password. If it does not exist, it will be
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<xi:include href="../bugs.xml"/>
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<refsect1 id="example">
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<title>EXAMPLE</title>
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Note that normally, this program will not be invoked directly,
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but instead started by the Mandos <citerefentry><refentrytitle
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>plugin-runner</refentrytitle><manvolnum>8mandos</manvolnum>
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This program takes no options.
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<userinput>&COMMANDNAME;</userinput>
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<refsect1 id="security">
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<title>SECURITY</title>
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The only thing that could be considered worthy of note is
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this: This program is meant to be run by <citerefentry>
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<refentrytitle>plugin-runner</refentrytitle><manvolnum
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>8mandos</manvolnum></citerefentry>, and will, when run
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standalone, outside, in a normal environment, immediately output
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on its standard output any presumably secret password it just
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received. Therefore, when running this program standalone
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(which should never normally be done), take care not to type in
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any real secret password by force of habit, since it would then
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immediately be shown as output.
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<refsect1 id="see_also">
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<title>SEE ALSO</title>
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<citerefentry><refentrytitle>intro</refentrytitle>
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<manvolnum>8mandos</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>fifo</refentrytitle>
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<manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>plugin-runner</refentrytitle>
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<manvolnum>8mandos</manvolnum></citerefentry>
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<!-- time-stamp-format: "%:y-%02m-%02d" -->
added
removed
plugins.d/askpass-fifo.xml
