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jfr.im git - irc/quakenet/snircd.git/blob - ircd/m_uping.c
2 * IRC - Internet Relay Chat, ircd/m_uping.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_uping.c,v 1.8 2004/12/11 05:14:03 klmitch 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"
100 /* #include <assert.h> -- Now using assert in ircd_log.h */
105 * ms_uping - server message handler
109 * parv[0] = sender prefix
110 * parv[1] = pinged server
112 * parv[3] = hunted server
113 * parv[4] = number of requested pings
115 int ms_uping(struct Client
* cptr
, struct Client
* sptr
, int parc
, char* parv
[])
117 struct ConfItem
*aconf
;
124 if (!IsAnOper(sptr
)) {
125 send_reply(sptr
, ERR_NOPRIVILEGES
);
130 send_reply(sptr
, ERR_NEEDMOREPARAMS
, "UPING");
134 if (hunt_server_cmd(sptr
, CMD_UPING
, cptr
, 1, "%s %s %C %s", 3, parc
, parv
)
138 * Determine port: First user supplied, then default : 7007
140 if (EmptyString(parv
[2]) || (port
= atoi(parv
[2])) <= 0)
141 port
= atoi(UDP_PORT
);
143 if (EmptyString(parv
[4]) || (count
= atoi(parv
[4])) <= 0)
145 sendcmdto_one(&me
, CMD_NOTICE
, sptr
, "%C :UPING : Illegal number of "
146 "packets: %s", sptr
, parv
[4]);
150 * Check if a CONNECT would be possible at all (adapted from m_connect)
152 if ((aconf
= conf_find_server(parv
[1])))
153 uping_server(sptr
, aconf
, port
, count
);
155 sendcmdto_one(&me
, CMD_NOTICE
, sptr
, "%C :UPING: Host %s not listed in "
156 "ircd.conf", sptr
, parv
[1]);
162 * mo_uping - oper message handler
166 * parv[0] = sender prefix
167 * parv[1] = pinged server
169 * parv[3] = hunted server
170 * parv[4] = number of requested pings
172 int mo_uping(struct Client
* cptr
, struct Client
* sptr
, int parc
, char* parv
[])
174 struct ConfItem
*aconf
;
180 assert(cptr
== sptr
);
182 assert(IsAnOper(sptr
));
185 send_reply(sptr
, ERR_NEEDMOREPARAMS
, "UPING");
190 parv
[parc
++] = UDP_PORT
;
191 parv
[parc
++] = cli_name(&me
);
194 else if (parc
== 3) {
195 if (IsDigit(*parv
[2]))
196 parv
[parc
++] = cli_name(&me
);
198 parv
[parc
++] = parv
[2];
203 else if (parc
== 4) {
204 if (IsDigit(*parv
[2])) {
205 if (IsDigit(*parv
[3])) {
206 parv
[parc
++] = parv
[3];
207 parv
[3] = cli_name(&me
);
213 parv
[parc
++] = parv
[3];
218 if (hunt_server_cmd(sptr
, CMD_UPING
, sptr
, 1, "%s %s %C %s", 3, parc
, parv
)
222 * Determine port: First user supplied, then default : 7007
224 if (EmptyString(parv
[2]) || (port
= atoi(parv
[2])) <= 0)
225 port
= atoi(UDP_PORT
);
227 if (EmptyString(parv
[4]) || (count
= atoi(parv
[4])) <= 0)
229 sendcmdto_one(&me
, CMD_NOTICE
, sptr
, "%C :UPING: Illegal number of "
230 "packets: %s", sptr
, parv
[4]);
234 * Check if a CONNECT would be possible at all (adapted from m_connect)
236 if ((aconf
= conf_find_server(parv
[1])))
237 uping_server(sptr
, aconf
, port
, count
);
239 sendcmdto_one(&me
, CMD_NOTICE
, sptr
, "%C :UPING: Host %s not listed in "
240 "ircd.conf", sptr
, parv
[1]);