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jfr.im git - irc/quakenet/snircd.git/blob - ircd/m_ison.c
2 * IRC - Internet Relay Chat, ircd/m_ison.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * See file AUTHORS in IRC package for additional names of
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 1, or (at your option)
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * $Id: m_ison.c,v 1.9 2005/03/20 16:06:18 entrope Exp $
27 * m_functions execute protocol messages on this server:
29 * cptr is always NON-NULL, pointing to a *LOCAL* client
30 * structure (with an open socket connected!). This
31 * identifies the physical socket where the message
32 * originated (or which caused the m_function to be
33 * executed--some m_functions may call others...).
35 * sptr is the source of the message, defined by the
36 * prefix part of the message if present. If not
37 * or prefix not found, then sptr==cptr.
39 * (!IsServer(cptr)) => (cptr == sptr), because
40 * prefixes are taken *only* from servers...
43 * (sptr == cptr) => the message didn't
46 * (sptr != cptr && IsServer(sptr) means
47 * the prefix specified servername. (?)
49 * (sptr != cptr && !IsServer(sptr) means
50 * that message originated from a remote
55 * (!IsServer(sptr)) means that, sptr can safely
56 * taken as defining the target structure of the
57 * message in this server.
59 * *Always* true (if 'parse' and others are working correct):
61 * 1) sptr->from == cptr (note: cptr->from == cptr)
63 * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
64 * *cannot* be a local connection, unless it's
65 * actually cptr!). [MyConnect(x) should probably
66 * be defined as (x == x->from) --msa ]
68 * parc number of variable parameter strings (if zero,
69 * parv is allowed to be NULL)
71 * parv a NULL terminated list of parameter pointers,
73 * parv[0], sender (prefix string), if not present
74 * this points to an empty string.
75 * parv[1]...parv[parc-1]
76 * pointers to additional parameters
77 * parv[parc] == NULL, *always*
79 * note: it is guaranteed that parv[0]..parv[parc-1] are all
88 #include "ircd_reply.h"
89 #include "ircd_string.h"
94 /* #include <assert.h> -- Now using assert in ircd_log.h */
100 * Added by Darren Reed 13/8/91 to act as an efficient user indicator
101 * with respect to cpu/bandwidth used. Implemented for NOTIFY feature in
102 * clients. Designed to reduce number of whois requests. Can process
103 * nicknames in batches as long as the maximum buffer length.
108 * XXX - this is virtually the same as send_user_info, but doesn't send
109 * no nick found, might be refactored so that m_userhost, m_userip, and
110 * m_ison all use the same function with different formatters. --Bleep
112 int m_ison(struct Client
*cptr
, struct Client
*sptr
, int parc
, char *parv
[])
114 struct Client
* acptr
;
121 return need_more_params(sptr
, "ISON");
123 mb
= msgq_make(sptr
, rpl_str(RPL_ISON
), cli_name(&me
), cli_name(sptr
));
125 for (i
= 1; i
< parc
; i
++) {
126 for (name
= ircd_strtok(&p
, parv
[i
], " "); name
;
127 name
= ircd_strtok(&p
, 0, " ")) {
128 if ((acptr
= FindUser(name
))) {
129 if (msgq_bufleft(mb
) < strlen(cli_name(acptr
)) + 1) {
130 send_buffer(sptr
, mb
, 0); /* send partial response */
131 msgq_clean(mb
); /* then do another round */
132 mb
= msgq_make(sptr
, rpl_str(RPL_ISON
), cli_name(&me
),
135 msgq_append(0, mb
, "%s ", cli_name(acptr
));
140 send_buffer(sptr
, mb
, 0); /* send response */