/[svn]/ircd-hybrid-7.2/modules/m_whowas.c
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Contents of /ircd-hybrid-7.2/modules/m_whowas.c

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Revision 145 - (show annotations)
Sun Oct 16 10:07:13 2005 UTC (14 years, 11 months ago) by michael
File MIME type: text/x-chdr
File size: 4380 byte(s)
- Limit maximum WHOWAS replies for remote requests to 20, as per H6

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_whois.c: Shows who a user was.
4 *
5 * Copyright (C) 2002 by the past and present ircd coders, and others.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 * USA
21 *
22 * $Id$
23 */
24
25 #include "stdinc.h"
26 #include "whowas.h"
27 #include "handlers.h"
28 #include "client.h"
29 #include "common.h"
30 #include "hash.h"
31 #include "irc_string.h"
32 #include "ircd.h"
33 #include "ircd_defs.h"
34 #include "numeric.h"
35 #include "s_serv.h"
36 #include "s_user.h"
37 #include "send.h"
38 #include "s_conf.h"
39 #include "msg.h"
40 #include "parse.h"
41 #include "modules.h"
42
43
44 static void m_whowas(struct Client *, struct Client *, int, char *[]);
45 static void mo_whowas(struct Client *, struct Client *, int, char *[]);
46 static void whowas_do(struct Client *, struct Client *, int, char *[]);
47
48 struct Message whowas_msgtab = {
49 "WHOWAS", 0, 0, 0, 0, MFLG_SLOW, 0,
50 { m_unregistered, m_whowas, mo_whowas, m_ignore, mo_whowas, m_ignore }
51 };
52
53 #ifndef STATIC_MODULES
54 void
55 _modinit(void)
56 {
57 mod_add_cmd(&whowas_msgtab);
58 }
59
60 void
61 _moddeinit(void)
62 {
63 mod_del_cmd(&whowas_msgtab);
64 }
65
66 const char *_version = "$Revision$";
67 #endif
68
69 /*
70 ** m_whowas
71 ** parv[0] = sender prefix
72 ** parv[1] = nickname queried
73 */
74 static void
75 m_whowas(struct Client *client_p, struct Client *source_p,
76 int parc, char *parv[])
77 {
78 static time_t last_used = 0;
79
80 if (parc < 2 || *parv[1] == '\0')
81 {
82 sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
83 me.name, source_p->name);
84 return;
85 }
86
87 if ((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime)
88 {
89 sendto_one(source_p,form_str(RPL_LOAD2HI),
90 me.name, source_p->name);
91 return;
92 }
93 else
94 last_used = CurrentTime;
95
96 whowas_do(client_p, source_p, parc, parv);
97 }
98
99 static void
100 mo_whowas(struct Client *client_p, struct Client *source_p,
101 int parc, char *parv[])
102 {
103 if (parc < 2 || *parv[1] == '\0')
104 {
105 sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
106 me.name, source_p->name);
107 return;
108 }
109
110 whowas_do(client_p, source_p, parc, parv);
111 }
112
113 static void
114 whowas_do(struct Client *client_p, struct Client *source_p,
115 int parc, char *parv[])
116 {
117 struct Whowas *temp = NULL;
118 int cur = 0;
119 int max = -1;
120 char *p = NULL, *nick = NULL;
121
122 if (parc > 2)
123 {
124 max = atoi(parv[2]);
125
126 if (!MyConnect(source_p) && max > 20)
127 max = 20;
128 }
129
130 if (parc > 3)
131 if (hunt_server(client_p, source_p, ":%s WHOWAS %s %s :%s", 3,
132 parc, parv) != HUNTED_ISME)
133 return;
134
135 nick = parv[1];
136 while (*nick == ',')
137 nick++;
138 if ((p = strchr(nick,',')) != NULL)
139 *p = '\0';
140 if (*nick == '\0')
141 return;
142
143 temp = WHOWASHASH[strhash(nick)];
144
145 for (; temp; temp = temp->next)
146 {
147 if (irccmp(nick, temp->name) == 0)
148 {
149 sendto_one(source_p, form_str(RPL_WHOWASUSER),
150 me.name, source_p->name, temp->name,
151 temp->username, temp->hostname,
152 temp->realname);
153
154 if (ConfigServerHide.hide_servers && !IsOper(source_p))
155 sendto_one(source_p, form_str(RPL_WHOISSERVER),
156 me.name, source_p->name, temp->name,
157 ServerInfo.network_name, myctime(temp->logoff));
158 else
159 sendto_one(source_p, form_str(RPL_WHOISSERVER),
160 me.name, source_p->name, temp->name,
161 temp->servername, myctime(temp->logoff));
162 cur++;
163 }
164
165 if (max > 0 && cur >= max)
166 break;
167 }
168
169 if (!cur)
170 sendto_one(source_p, form_str(ERR_WASNOSUCHNICK),
171 me.name, source_p->name, nick);
172
173 sendto_one(source_p, form_str(RPL_ENDOFWHOWAS),
174 me.name, source_p->name, parv[1]);
175 }

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