2 * IRC - Internet Relay Chat, ircd/s_numeric.c
3 * Copyright (C) 1990 Jarkko Oikarinen
5 * Numerous fixes by Markku Savela
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 1, or (at your option)
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include "s_numeric.h"
30 #include "ircd_features.h"
31 #include "ircd_snprintf.h"
39 * Rewritten by Nemesi, Jan 1999, to support numeric nicks in parv[1]
41 * Called when we get a numeric message from a remote _server_ and we are
42 * supposed to forward it somewhere. Note that we always ignore numerics sent
43 * to 'me' and simply drop the message if we can't handle with this properly:
44 * the savy approach is NEVER generate an error in response to an... error :)
47 /** Forwards a numeric message from a remote server.
48 * @param numeric Value of numeric message.
49 * @param nnn If non-zero, treat parv[1] as a numnick; else as a client name.
50 * @param cptr Client that originated the numeric.
51 * @param sptr Peer that sent us the numeric.
52 * @param parc Count of valid arguments in \a parv.
53 * @param parv Argument list.
54 * @return Zero (always).
56 int do_numeric(int numeric, int nnn, struct Client *cptr, struct Client *sptr,
57 int parc, char *parv[])
59 struct Client *acptr = 0;
60 struct Channel *achptr = 0;
63 /* Avoid trash, we need it to come from a server and have a target */
64 if ((parc < 2) || !IsServer(sptr))
67 /* Who should receive this message ? Will we do something with it ?
68 Note that we use findUser functions, so the target can't be neither
69 a server, nor a channel (?) nor a list of targets (?) .. u2.10
70 should never generate numeric replies to non-users anyway
71 Ahem... it can be a channel actually, csc bots use it :\ --Nem */
73 if (IsChannelName(parv[1]))
74 achptr = FindChannel(parv[1]);
76 acptr = (nnn) ? (findNUser(parv[1])) : (FindUser(parv[1]));
78 if (((!acptr) || (cli_from(acptr) == cptr)) && !achptr)
81 /* Remap low number numerics, not that I understand WHY.. --Nemesi */
82 /* numerics below 100 talk about the current 'connection', you're not
83 * connected to a remote server so it doesn't make sense to send them
84 * remotely - but the information they contain may be useful, so we
85 * remap them up. Weird, but true. -- Isomer */
89 ircd_snprintf(0, num, sizeof(num), "%03d", numeric);
91 /* Since 2.10.10.pl14 we rewrite numerics from remote servers to appear to
92 * come from the local server
95 sendcmdto_one((feature_bool(FEAT_HIS_REWRITE) && !IsOper(acptr)) ?
97 num, num, acptr, "%C %s", acptr, parv[2]);
99 sendcmdto_channel_butone((feature_bool(FEAT_HIS_REWRITE) && !IsOper(acptr)) ?
101 num, num, achptr, cptr, SKIP_DEAF | SKIP_BURST,
102 "%H %s", achptr, parv[2]);