2 * IRC - Internet Relay Chat, ircd/m_whowas.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
87 #include "ircd_policy.h"
88 #include "ircd_reply.h"
89 #include "ircd_string.h"
102 * m_whowas - generic message handler
104 * parv[0] = sender prefix
105 * parv[1] = nickname queried
106 * parv[2] = maximum returned items (optional, default is unlimitted)
107 * parv[3] = remote server target (Opers only, max returned items 20)
109 int m_whowas(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
113 int max = -1, found = 0;
118 send_reply(sptr, ERR_NONICKNAMEGIVEN);
124 if (hunt_server_cmd(sptr, CMD_WHOWAS, cptr, 1, "%s %s :%C", 3, parc, parv))
127 parv[1] = canonize(parv[1]);
128 if (!MyConnect(sptr) && (max > 20))
129 max = 20; /* Set max replies at 20 */
130 for (s = parv[1]; (nick = ircd_strtok(&p, s, ",")); s = 0)
132 /* Search through bucket, finding all nicknames that match */
134 for (temp = whowashash[hash_whowas_name(nick)]; temp; temp = temp->hnext)
136 if (0 == ircd_strcmp(nick, temp->name))
138 send_reply(sptr, RPL_WHOWASUSER, temp->name, temp->username,
139 temp->hostname, temp->realname);
140 #ifdef HEAD_IN_SAND_WHOIS_SERVERNAME
142 send_reply(sptr, RPL_WHOISSERVER, temp->name, "*.undernet.org",
143 myctime(temp->logoff));
146 send_reply(sptr, RPL_WHOISSERVER, temp->name, temp->servername,
147 myctime(temp->logoff));
149 send_reply(sptr, RPL_AWAY, temp->name, temp->away);
153 if (max >= 0 && cur >= max)
157 send_reply(sptr, ERR_WASNOSUCHNICK, nick);
158 /* To keep parv[1] intact for ENDOFWHOWAS */
162 send_reply(sptr, RPL_ENDOFWHOWAS, parv[1]);