% SSH-ASKPASS-NOINPUT % chrysn % 2013-10-26 # NAME ssh-askpass-noinput - an `ssh-askpass` implementation for asking allow/deny questions # SYNOPSIS *ssh-askpass-noinput* text # DESCRIPTION *ssh-askpass-noinput* is an implementation of *ssh-askpass*, 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. It is not intended as a general replacement for *ssh-askpass*, but for special applications that don't care about a passphrase. # OPTIONS As usual with *ssh-askpass* implementations, *ssh-askpass-noinput* only takes a single argument, which will be presented as the question. # BACKGROUND AND APPLICATIONS Some programs (*ssh-agent* and *ssh-agent-filter*) use *ssh-askpass* to have users confirm actions without entering a passphrase; *ssh-agent* does this when used via *ssh-add*'s `-c` option. They do not indicate that it is a binary question (because in the classical *ssh-agent* invocation, there is no option to do this), and expect the user to ignore the text input and click "OK" or "Cancel", whereupon they read the askpass's exit status. With programs that are known to only ask those questions, setting `SSH_ASKPASS=ssh-askpass-noinput` in their environment will make them use this particular implementation for their questions. It should never be installed as `/usr/bin/ssh-askpass`. # FUTURE This solution is obviously a hack, which is needed until a way is established and implemented for *ssh-askpass* to be used more flexibly. # SEE ALSO ssh-agent-filter(1), ssh-agent(1), ssh-askpass(1) # AUTHORS ssh-askpass-noinput was conceived by chrysn . 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.