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construct/ircd/parse.cc

97 lines
3.6 KiB
C++

/*
* Copyright (C) 2016 Charybdis Development Team
* Copyright (C) 2016 Jason Volk <jason@zemos.net>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
namespace ircd
{
}
//
// Museum of historical comments
//
// parse.c (1990 - 2016)
//
/* ok, fake prefix happens naturally during a burst on a nick
* collision with TS5, we cant kill them because one client has to
* survive, so we just send an error.
*/
/* meepfoo is a nickname (ignore)
* #XXXXXXXX is a UID (KILL)
* #XX is a SID (SQUIT)
* meep.foo is a server (SQUIT)
*/
/*
* *WARNING*
* Numerics are mostly error reports. If there is something
* wrong with the message, just *DROP* it! Don't even think of
* sending back a neat error message -- big danger of creating
* a ping pong error message...
*/
/*
* Prepare the parameter portion of the message into 'buffer'.
* (Because the buffer is twice as large as the message buffer
* for the socket, no overflow can occur here... ...on current
* assumptions--bets are off, if these are changed --msa)
* Note: if buffer is non-empty, it will begin with SPACE.
*/
/*
* We shouldn't get numerics sent to us,
* any numerics we do get indicate a bug somewhere..
*/
/* ugh. this is here because of nick collisions. when two servers
* relink, they burst each other their nicks, then perform collides.
* if there is a nick collision, BOTH servers will kill their own
* nicks, and BOTH will kill the other servers nick, which wont exist,
* because it will have been already killed by the local server.
*
* unfortunately, as we cant guarantee other servers will do the
* "right thing" on a nick collision, we have to keep both kills.
* ergo we need to ignore ERR_NOSUCHNICK. --fl_
*/
/* quick comment. This _was_ tried. i.e. assume the other servers
* will do the "right thing" and kill a nick that is colliding.
* unfortunately, it did not work. --Dianora
*/
/* note, now we send PING on server connect, we can
* also get ERR_NOSUCHSERVER..
*/
/* This message changed direction (nick collision?)
* ignore it.
*/
/* csircd will send out unknown umode flag for +a (admin), drop it here. */
/* Fake it for server hiding, if its our client */
/* bit of a hack.
* I don't =really= want to waste a bit in a flag
* number_of_nick_changes is only really valid after the client
* is fully registered..
*/