2 * IRC - Internet Relay Chat, ircd/m_links.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.
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
86 * No need to include handlers.h here the signatures must match
87 * and we don't need to force a rebuild of all the handlers everytime
88 * we add a new one to the list. --Bleep
94 #include "ircd_policy.h"
95 #include "ircd_reply.h"
96 #include "ircd_string.h"
100 #include "numnicks.h"
108 * m_links - generic message handler
110 * parv[0] = sender prefix
111 * parv[1] = servername mask
115 * parv[0] = sender prefix
116 * parv[1] = server to query
117 * parv[2] = servername mask
119 int m_links(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
122 struct Client *acptr;
126 if (hunt_server_cmd(sptr, CMD_LINKS, cptr, 1, "%C :%s", 1, parc, parv) !=
132 mask = parc < 2 ? 0 : parv[1];
134 for (acptr = GlobalClientList, collapse(mask); acptr; acptr = cli_next(acptr))
136 if (!IsServer(acptr) && !IsMe(acptr))
138 if (!BadPtr(mask) && match(mask, cli_name(acptr)))
140 send_reply(sptr, RPL_LINKS, cli_name(acptr), cli_name(cli_serv(acptr)->up),
141 cli_hopcount(acptr), cli_serv(acptr)->prot,
142 ((cli_info(acptr))[0] ? cli_info(acptr) : "(Unknown Location)"));
145 send_reply(sptr, RPL_ENDOFLINKS, BadPtr(mask) ? "*" : mask);
149 #ifdef HEAD_IN_SAND_LINKS
150 int m_links_redirect(struct Client* cptr, struct Client* sptr, int parc,
155 return send_reply(cptr, ERR_NOPRIVILEGES);
157 send_reply(sptr, RPL_ENDOFLINKS, parc < 2 ? "*" : parv[1]);
158 sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :%s", sptr,
159 "/LINKS has been disabled, from CFV-165. "
160 "Visit http://www.undernet.org/servers.php");
166 * ms_links - server message handler
168 * parv[0] = sender prefix
169 * parv[1] = servername mask
173 * parv[0] = sender prefix
174 * parv[1] = server to query
175 * parv[2] = servername mask
177 int ms_links(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
180 struct Client *acptr;
184 if (hunt_server_cmd(sptr, CMD_LINKS, cptr, 1, "%C :%s", 1, parc, parv) !=
190 mask = parc < 2 ? 0 : parv[1];
192 for (acptr = GlobalClientList, collapse(mask); acptr; acptr = cli_next(acptr))
194 if (!IsServer(acptr) && !IsMe(acptr))
196 if (!BadPtr(mask) && match(mask, cli_name(acptr)))
198 send_reply(sptr, RPL_LINKS, cli_name(acptr), cli_name(cli_serv(acptr)->up),
199 cli_hopcount(acptr), cli_serv(acptr)->prot,
200 ((cli_info(acptr))[0] ? cli_info(acptr) : "(Unknown Location)"));
203 send_reply(sptr, RPL_ENDOFLINKS, BadPtr(mask) ? "*" : mask);
212 * parv[0] = sender prefix
213 * parv[1] = servername mask
217 * parv[0] = sender prefix
218 * parv[1] = server to query
219 * parv[2] = servername mask
221 int m_links(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
224 struct Client *acptr;
228 if (hunt_server(1, cptr, sptr, "%s%s LINKS %s :%s", 1, parc, parv) != /* XXX DEAD */
234 mask = parc < 2 ? 0 : parv[1];
236 for (acptr = GlobalClientList, collapse(mask); acptr; acptr = acptr->next)
238 if (!IsServer(acptr) && !IsMe(acptr))
240 if (!BadPtr(mask) && match(mask, acptr->name))
242 sendto_one(sptr, rpl_str(RPL_LINKS), /* XXX DEAD */
243 me.name, parv[0], acptr->name, acptr->serv->up->name,
245 acptr->hopcount, acptr->serv->prot,
247 acptr->hopcount, acptr->serv->prot, acptr->serv->timestamp,
250 (acptr->info[0] ? acptr->info : "(Unknown Location)"));
253 sendto_one(sptr, rpl_str(RPL_ENDOFLINKS), me.name, parv[0], /* XXX DEAD */
254 BadPtr(mask) ? "*" : mask);