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1 | /* | |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_whois.c: Shows who a user was. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * | |
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 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
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. | |
18 | * | |
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
22 | * USA | |
23 | */ | |
24 | ||
25 | #include "stdinc.h" | |
26 | #include "whowas.h" | |
27 | #include "client.h" | |
28 | #include "common.h" | |
29 | #include "hash.h" | |
30 | #include "match.h" | |
31 | #include "ircd.h" | |
32 | #include "ircd_defs.h" | |
33 | #include "numeric.h" | |
34 | #include "s_serv.h" | |
35 | #include "s_user.h" | |
36 | #include "send.h" | |
37 | #include "s_conf.h" | |
38 | #include "msg.h" | |
39 | #include "parse.h" | |
40 | #include "modules.h" | |
41 | ||
42 | static const char whowas_desc[] = | |
43 | "Provides the WHOWAS command to display information on a disconnected user"; | |
44 | ||
45 | static void m_whowas(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
46 | ||
47 | struct Message whowas_msgtab = { | |
48 | "WHOWAS", 0, 0, 0, 0, | |
49 | {mg_unreg, {m_whowas, 2}, {m_whowas, 4}, mg_ignore, mg_ignore, {m_whowas, 2}} | |
50 | }; | |
51 | ||
52 | mapi_clist_av1 whowas_clist[] = { &whowas_msgtab, NULL }; | |
53 | ||
54 | DECLARE_MODULE_AV2(whowas, NULL, NULL, whowas_clist, NULL, NULL, NULL, NULL, whowas_desc); | |
55 | ||
56 | /* | |
57 | ** m_whowas | |
58 | ** parv[1] = nickname queried | |
59 | */ | |
60 | static void | |
61 | m_whowas(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
62 | { | |
63 | rb_dlink_list *whowas_list; | |
64 | rb_dlink_node *ptr; | |
65 | int cur = 0; | |
66 | int max = -1; | |
67 | char *p; | |
68 | const char *nick; | |
69 | char tbuf[26]; | |
70 | long sendq_limit; | |
71 | ||
72 | static time_t last_used = 0L; | |
73 | ||
74 | if(MyClient(source_p) && !IsOper(source_p)) | |
75 | { | |
76 | if(last_used + (parc > 3 ? ConfigFileEntry.pace_wait : | |
77 | ConfigFileEntry.pace_wait_simple | |
78 | ) > rb_current_time()) | |
79 | { | |
80 | sendto_one(source_p, form_str(RPL_LOAD2HI), | |
81 | me.name, source_p->name, "WHOWAS"); | |
82 | sendto_one_numeric(source_p, RPL_ENDOFWHOWAS, form_str(RPL_ENDOFWHOWAS), | |
83 | parv[1]); | |
84 | return; | |
85 | } | |
86 | else | |
87 | last_used = rb_current_time(); | |
88 | } | |
89 | ||
90 | ||
91 | if(parc > 2) | |
92 | max = atoi(parv[2]); | |
93 | ||
94 | if(parc > 3) | |
95 | if(hunt_server(client_p, source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv)) | |
96 | return; | |
97 | ||
98 | if(!MyClient(source_p) && (max <= 0 || max > 20)) | |
99 | max = 20; | |
100 | ||
101 | if((p = strchr(parv[1], ','))) | |
102 | *p = '\0'; | |
103 | ||
104 | nick = parv[1]; | |
105 | ||
106 | sendq_limit = get_sendq(client_p) * 9 / 10; | |
107 | whowas_list = whowas_get_list(nick); | |
108 | ||
109 | if(whowas_list == NULL) | |
110 | { | |
111 | sendto_one_numeric(source_p, ERR_WASNOSUCHNICK, form_str(ERR_WASNOSUCHNICK), nick); | |
112 | sendto_one_numeric(source_p, RPL_ENDOFWHOWAS, form_str(RPL_ENDOFWHOWAS), parv[1]); | |
113 | return; | |
114 | } | |
115 | ||
116 | RB_DLINK_FOREACH(ptr, whowas_list->head) | |
117 | { | |
118 | struct Whowas *temp = ptr->data; | |
119 | if(cur > 0 && rb_linebuf_len(&client_p->localClient->buf_sendq) > sendq_limit) | |
120 | { | |
121 | sendto_one(source_p, form_str(ERR_TOOMANYMATCHES), | |
122 | me.name, source_p->name, "WHOWAS"); | |
123 | break; | |
124 | } | |
125 | ||
126 | sendto_one(source_p, form_str(RPL_WHOWASUSER), | |
127 | me.name, source_p->name, temp->name, | |
128 | temp->username, temp->hostname, temp->realname); | |
129 | if (!EmptyString(temp->sockhost) && | |
130 | strcmp(temp->sockhost, "0") && | |
131 | show_ip_whowas(temp, source_p)) | |
132 | sendto_one_numeric(source_p, RPL_WHOISACTUALLY, | |
133 | form_str(RPL_WHOISACTUALLY), | |
134 | temp->name, temp->sockhost); | |
135 | ||
136 | if (!EmptyString(temp->suser)) | |
137 | sendto_one_numeric(source_p, RPL_WHOISLOGGEDIN, | |
138 | "%s %s :was logged in as", | |
139 | temp->name, temp->suser); | |
140 | ||
141 | sendto_one_numeric(source_p, RPL_WHOISSERVER, | |
142 | form_str(RPL_WHOISSERVER), | |
143 | temp->name, temp->servername, | |
144 | rb_ctime(temp->logoff, tbuf, sizeof(tbuf))); | |
145 | ||
146 | cur++; | |
147 | if(max > 0 && cur >= max) | |
148 | break; | |
149 | } | |
150 | ||
151 | sendto_one_numeric(source_p, RPL_ENDOFWHOWAS, form_str(RPL_ENDOFWHOWAS), parv[1]); | |
152 | } |