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.TH "SSH-ASKPASS-NOINPUT" "" "2013-10-26" "" ""
.hy
.SH NAME
.PP
ssh-askpass-noinput - an \f[V]ssh-askpass\f[R] implementation for asking
allow/deny questions
.SH SYNOPSIS
.PP
\f[I]ssh-askpass-noinput\f[R] text
.SH DESCRIPTION
.PP
\f[I]ssh-askpass-noinput\f[R] is an implementation of
\f[I]ssh-askpass\f[R], which does not actually ask for a password;
instead, it only asks a binary (allow/deny) question and exits with 0
for allow and 1 for deny.
.PP
It is not intended as a general replacement for \f[I]ssh-askpass\f[R],
but for special applications that don\[cq]t care about a passphrase.
.SH OPTIONS
.PP
As usual with \f[I]ssh-askpass\f[R] implementations,
\f[I]ssh-askpass-noinput\f[R] only takes a single argument, which will
be presented as the question.
.SH BACKGROUND AND APPLICATIONS
.PP
Some programs (\f[I]ssh-agent\f[R] and \f[I]ssh-agent-filter\f[R]) use
\f[I]ssh-askpass\f[R] to have users confirm actions without entering a
passphrase; \f[I]ssh-agent\f[R] does this when used via
\f[I]ssh-add\f[R]\[cq]s \f[V]-c\f[R] option.
They do not indicate that it is a binary question (because in the
classical \f[I]ssh-agent\f[R] invocation, there is no option to do
this), and expect the user to ignore the text input and click
\[lq]OK\[rq] or \[lq]Cancel\[rq], whereupon they read the askpass\[cq]s
exit status.
.PP
With programs that are known to only ask those questions, setting
\f[V]SSH_ASKPASS=ssh-askpass-noinput\f[R] in their environment will make
them use this particular implementation for their questions.
It should never be installed as \f[V]/usr/bin/ssh-askpass\f[R].
.SH FUTURE
.PP
This solution is obviously a hack, which is needed until a way is
established and implemented for \f[I]ssh-askpass\f[R] to be used more
flexibly.
.SH SEE ALSO
.PP
ssh-agent-filter(1), ssh-agent(1), ssh-askpass(1)
.SH AUTHORS
.PP
ssh-askpass-noinput was conceived by chrysn <chrysn@fsfe.org>.
.PP
Both the program and this man page are free software; you can
redistribute it and/or modify it under the terms of the GNU General
Public License as published by the Free Software Foundation, either
version 3 of the License, or (at your option) any later version.
.SH AUTHORS
chrysn <chrysn@fsfe.org>.