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.
23 * $Id: m_whowas.c,v 1.12 2005/04/25 21:25:20 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
87 #include "ircd_features.h"
89 #include "ircd_reply.h"
90 #include "ircd_string.h"
99 /* #include <assert.h> -- Now using assert in ircd_log.h */
103 * m_whowas - generic message handler
105 * parv[0] = sender prefix
106 * parv[1] = nickname queried
107 * parv[2] = maximum returned items (optional, default is unlimited)
108 * parv[3] = remote server target (Opers only, max returned items 20)
110 int m_whowas(struct Client
* cptr
, struct Client
* sptr
, int parc
, char* parv
[])
114 int max
= -1, found
= 0;
119 send_reply(sptr
, ERR_NONICKNAMEGIVEN
);
125 if (hunt_server_cmd(sptr
, CMD_WHOWAS
, cptr
, 1, "%s %s :%C", 3, parc
, parv
))
128 parv
[1] = canonize(parv
[1]);
129 if (!MyConnect(sptr
) && (max
> 20))
130 max
= 20; /* Set max replies at 20 */
131 for (s
= parv
[1]; (nick
= ircd_strtok(&p
, s
, ",")); s
= 0)
133 /* Search through bucket, finding all nicknames that match */
135 for (temp
= whowashash
[hash_whowas_name(nick
)]; temp
; temp
= temp
->hnext
)
137 if (0 == ircd_strcmp(nick
, temp
->name
))
139 send_reply(sptr
, RPL_WHOWASUSER
, temp
->name
, temp
->username
,
140 temp
->hostname
, temp
->realname
);
141 if (IsAnOper(sptr
) && temp
->realhost
)
142 send_reply(sptr
, RPL_WHOISACTUALLY
, temp
->name
, temp
->username
, temp
->realhost
);
143 send_reply(sptr
, RPL_WHOISSERVER
, temp
->name
,
144 (feature_bool(FEAT_HIS_WHOIS_SERVERNAME
) && !IsOper(sptr
)) ?
145 feature_str(FEAT_HIS_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]);