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.Dd October 29, 2019
.Dt POUNCE 1
.Os
.
.Sh NAME
.Nm pounce
.Nd IRC bouncer
.
.Sh SYNOPSIS
.Nm
.Op Fl Nv
.Op Fl A Ar away
.Op Fl C Ar cert
.Op Fl H Ar host
.Op Fl K Ar priv
.Op Fl P Ar port
.Op Fl Q Ar quit
.Op Fl W Ar pass
.Op Fl a Ar auth
.Op Fl f Ar file
.Op Fl h Ar host
.Op Fl j Ar chan
.Op Fl n Ar nick
.Op Fl p Ar port
.Op Fl r Ar real
.Op Fl u Ar user
.Op Fl w Ar pass
.
.Sh DESCRIPTION
The
.Nm
daemon
is a multi-client, TLS-only IRC bouncer.
It maintains a persistent connection to an IRC server
while allowing clients to connect and disconnect,
receiving messages that were missed upon reconnection.
Clients should use the IRCv3.2 server-time extension
to know when missed messages were received
and uniquely identify themselves by username.
.
.Pp
The arguments are as follows:
.
.Bl -tag -width "-W @file"
.It Fl A Ar away
Set away status to
.Ar away
when no clients are connected.
.
.It Fl C Ar cert
Load TLS certificate from
.Ar cert .
The default path is
.Pa /usr/local/etc/letsencrypt/live/ Ns Ar host Ns Pa /fullchain.pem
where
.Ar host
is set by
.Fl H .
.
.It Fl H Ar host
Bind to local
.Ar host .
The default host is localhost.
.
.It Fl K Ar priv
Load TLS private key from
.Ar priv .
The default path is
.Pa /usr/local/etc/letsencrypt/live/ Ns Ar host Ns Pa /privkey.pem
where
.Ar host
is set by
.Fl H .
.
.It Fl N
Request
.Ql NAMES
for each channel when a client connects.
.
.It Fl P Ar port
Bind to local
.Ar port .
The default port is 6697.
.
.It Fl Q Ar quit
Quit with message
.Ar quit
when shutting down.
.
.It Fl W Ar pass
Require the password
.Ar pass
to connect.
.
.It Fl W Cm @ Ns Ar file
Set
.Fl W Ar pass
to the first line read from
.Ar file .
.
.It Fl a Ar auth
Authenticate with SASL PLAIN.
.Ar auth
is a colon-separated username and password.
.
.It Fl a Cm @ Ns Ar file
Set
.Fl a Ar auth
to the first line read from
.Ar file .
.
.It Fl f Ar file
Load the contents of the ring buffer from
.Ar file
if it exists.
The file is then truncated.
On shutdown,
save the contents of the ring buffer to
.Ar file .
.
.It Fl h Ar host
Connect to
.Ar host .
.
.It Fl j Ar chan
Join the comma-separated list of
.Ar chan .
.
.It Fl n Ar nick
Set nickname to
.Ar nick .
The default nickname is the user's name.
.
.It Fl p Ar port
Connect to
.Ar port .
The default port is 6697.
.
.It Fl r Ar real
Set realname to
.Ar real .
The default realname is the same as the nickname.
.
.It Fl u Ar user
Set the username to
.Ar user .
The default username is the same as the nickname.
.
.It Fl v
Write IRC messages to standard error
in red to the server,
green from the server,
yellow from clients
and blue to clients.
.
.It Fl w Ar pass
Log in with the password
.Ar pass .
.
.It Fl w Cm @ Ns Ar file
Set
.Fl w Ar pass
to the first line read from
.Ar file .
.El
.
.Pp
When using
.Xr certbot 8
to obtain TLS certificates,
it is sufficient to specify the domain with
.Fl H .
.
.Pp
Upon receiving the
.Dv SIGUSR1
signal,
the certificate and private key
will be reloaded from the paths
specified by
.Fl C
and
.Fl K .
.
.Sh ENVIRONMENT
.Bl -tag -width Ds
.It Ev USER
The default nickname.
.El
.
.Sh EXAMPLES
.Bd -literal
.Nm Fl H Li pounce.example.org Fl h Li chat.freenode.net Fl j Li '#ascii.town'
.Ed
.
.Sh STANDARDS
The
.Nm
daemon implements the following:
.
.Bl -item
.It
.Rs
.%A E. Brocklesby
.%A L. Hardy
.%A K. Mitchell
.%T IRC RPL_ISUPPORT Numeric Definition
.%I IETF
.%D January 2005
.%U https://tools.ietf.org/html/draft-hardy-irc-isupport-00
.Re
.
.It
.Rs
.%A Kyle Fuller
.%A St\('ephan Kochen
.%A Alexey Sokolov
.%A James Wheare
.%T IRCv3.2 server-time Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/server-time-3.2
.Re
.
.It
.Rs
.%A Lee Hardy
.%A Perry Lorier
.%A Kevin L. Mitchell
.%A William Pitcock
.%T IRCv3.1 Client Capability Negotiation
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/core/capability-negotiation-3.1.html
.Re
.
.It
.Rs
.%A S. Josefsson
.%Q SJD
.%T The Base16, Base32, and Base64 Data Encodings
.%I IETF
.%N RFC 4648
.%D October 2006
.%U https://tools.ietf.org/html/rfc4648
.Re
.
.It
.Rs
.%A C. Kalt
.%T Internet Relay Chat: Client Protocol
.%I IETF
.%N RFC 2812
.%D April 2000
.%U https://tools.ietf.org/html/rfc2812
.Re
.
.It
.Rs
.%A William Pitcock
.%A Jilles Tjoelker
.%T IRCv3.1 SASL Authentication
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/sasl-3.1.html
.Re
.
.It
.Rs
.%A K. Zeilenga, Ed.
.%Q OpenLDAP Foundation
.%T The PLAIN Simple Authentication and Security Layer (SASL) Mechanism
.%I IETF
.%N RFC 4616
.%D August 2006
.%U https://tools.ietf.org/html/rfc4616
.Re
.El
.
.Sh AUTHORS
.An June Bug Aq Mt june@causal.agency
.
.Sh CAVEATS
One instance of
.Nm ,
and therefore one local port,
is required for each server connection.
.
.Pp
The
.Nm
daemon makes no distinction between channels.
Elevated activity in one channel
may push messages from a quieter channel
out of the buffer.