1 |
adx |
30 |
/* |
2 |
michael |
2916 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
adx |
30 |
* |
4 |
michael |
5346 |
* Copyright (c) 1997-2015 ircd-hybrid development team |
5 |
adx |
30 |
* |
6 |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
18 |
michael |
4564 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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adx |
30 |
* USA |
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*/ |
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22 |
michael |
5564 |
/*! \file user.c |
23 |
michael |
2916 |
* \brief User related functions. |
24 |
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* \version $Id$ |
25 |
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*/ |
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adx |
30 |
#include "stdinc.h" |
28 |
michael |
1011 |
#include "list.h" |
29 |
michael |
3347 |
#include "user.h" |
30 |
adx |
30 |
#include "channel.h" |
31 |
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#include "channel_mode.h" |
32 |
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#include "client.h" |
33 |
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#include "hash.h" |
34 |
michael |
6160 |
#include "id.h" |
35 |
adx |
30 |
#include "irc_string.h" |
36 |
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#include "ircd.h" |
37 |
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#include "listener.h" |
38 |
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#include "motd.h" |
39 |
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#include "numeric.h" |
40 |
michael |
1309 |
#include "conf.h" |
41 |
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#include "log.h" |
42 |
michael |
3347 |
#include "server.h" |
43 |
adx |
30 |
#include "send.h" |
44 |
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#include "memory.h" |
45 |
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#include "packet.h" |
46 |
michael |
982 |
#include "rng_mt.h" |
47 |
adx |
30 |
#include "userhost.h" |
48 |
michael |
3347 |
#include "misc.h" |
49 |
michael |
1243 |
#include "parse.h" |
50 |
michael |
876 |
#include "watch.h" |
51 |
michael |
6186 |
#include "isupport.h" |
52 |
adx |
30 |
|
53 |
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static char umode_buffer[IRCD_BUFSIZE]; |
54 |
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|
55 |
michael |
5393 |
const struct user_modes *umode_map[256]; |
56 |
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const struct user_modes umode_tab[] = |
57 |
adx |
30 |
{ |
58 |
michael |
5393 |
{ 'D', UMODE_DEAF }, |
59 |
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{ 'F', UMODE_FARCONNECT }, |
60 |
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{ 'G', UMODE_SOFTCALLERID }, |
61 |
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{ 'H', UMODE_HIDDEN }, |
62 |
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{ 'R', UMODE_REGONLY }, |
63 |
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{ 'S', UMODE_SSL }, |
64 |
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{ 'W', UMODE_WEBIRC }, |
65 |
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{ 'a', UMODE_ADMIN }, |
66 |
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{ 'b', UMODE_BOTS }, |
67 |
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{ 'c', UMODE_CCONN }, |
68 |
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{ 'd', UMODE_DEBUG }, |
69 |
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{ 'e', UMODE_EXTERNAL }, |
70 |
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{ 'f', UMODE_FULL }, |
71 |
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{ 'g', UMODE_CALLERID }, |
72 |
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{ 'i', UMODE_INVISIBLE }, |
73 |
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{ 'j', UMODE_REJ }, |
74 |
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{ 'k', UMODE_SKILL }, |
75 |
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{ 'l', UMODE_LOCOPS }, |
76 |
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{ 'n', UMODE_NCHANGE }, |
77 |
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{ 'o', UMODE_OPER }, |
78 |
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{ 'p', UMODE_HIDECHANS }, |
79 |
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{ 'q', UMODE_HIDEIDLE }, |
80 |
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{ 'r', UMODE_REGISTERED }, |
81 |
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{ 's', UMODE_SERVNOTICE }, |
82 |
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{ 'u', UMODE_UNAUTH }, |
83 |
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{ 'w', UMODE_WALLOP }, |
84 |
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{ 'x', UMODE_HIDDENHOST }, |
85 |
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{ 'y', UMODE_SPY }, |
86 |
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{ '\0', 0 } |
87 |
adx |
30 |
}; |
88 |
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89 |
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void |
90 |
michael |
6190 |
user_modes_init(void) |
91 |
adx |
30 |
{ |
92 |
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char *umode_buffer_ptr = umode_buffer; |
93 |
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|
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michael |
5393 |
for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
95 |
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{ |
96 |
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umode_map[tab->c] = tab; |
97 |
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*umode_buffer_ptr++ = tab->c; |
98 |
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} |
99 |
adx |
30 |
|
100 |
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*umode_buffer_ptr = '\0'; |
101 |
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} |
102 |
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103 |
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/* show_lusers() |
104 |
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* |
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* inputs - pointer to client |
106 |
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* output - NONE |
107 |
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* side effects - display to client user counts etc. |
108 |
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*/ |
109 |
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void |
110 |
michael |
2345 |
show_lusers(struct Client *source_p) |
111 |
adx |
30 |
{ |
112 |
michael |
1219 |
if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
113 |
michael |
4723 |
sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi), |
114 |
michael |
4208 |
Count.invisi, dlink_list_length(&global_server_list)); |
115 |
adx |
30 |
else |
116 |
michael |
4723 |
sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi), |
117 |
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Count.invisi, 1); |
118 |
adx |
30 |
|
119 |
michael |
3375 |
if (Count.oper) |
120 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_LUSEROP, Count.oper); |
121 |
adx |
30 |
|
122 |
michael |
3375 |
if (dlink_list_length(&unknown_list)) |
123 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_LUSERUNKNOWN, dlink_list_length(&unknown_list)); |
124 |
adx |
30 |
|
125 |
michael |
3945 |
if (dlink_list_length(&channel_list)) |
126 |
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sendto_one_numeric(source_p, &me, RPL_LUSERCHANNELS, dlink_list_length(&channel_list)); |
127 |
adx |
30 |
|
128 |
michael |
1219 |
if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
129 |
adx |
30 |
{ |
130 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.local, Count.myserver); |
131 |
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sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.local, Count.max_loc); |
132 |
adx |
30 |
} |
133 |
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else |
134 |
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{ |
135 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.total, 0); |
136 |
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sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.total, Count.max_tot); |
137 |
adx |
30 |
} |
138 |
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|
139 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_GLOBALUSERS, Count.total, Count.max_tot); |
140 |
adx |
30 |
|
141 |
michael |
1219 |
if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
142 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_STATSCONN, Count.max_loc_con, |
143 |
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Count.max_loc_cli, Count.totalrestartcount); |
144 |
adx |
30 |
|
145 |
michael |
1143 |
if (Count.local > Count.max_loc_cli) |
146 |
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Count.max_loc_cli = Count.local; |
147 |
adx |
30 |
|
148 |
michael |
1143 |
if ((Count.local + Count.myserver) > Count.max_loc_con) |
149 |
michael |
2345 |
Count.max_loc_con = Count.local + Count.myserver; |
150 |
adx |
30 |
} |
151 |
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|
152 |
michael |
3272 |
/* report_and_set_user_flags() |
153 |
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* |
154 |
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* inputs - pointer to source_p |
155 |
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* - pointer to conf for this user |
156 |
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* output - NONE |
157 |
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* side effects - Report to user any special flags |
158 |
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* they are getting, and set them. |
159 |
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*/ |
160 |
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static void |
161 |
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report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf) |
162 |
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{ |
163 |
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/* If this user is being spoofed, tell them so */ |
164 |
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if (IsConfDoSpoofIp(conf)) |
165 |
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sendto_one_notice(source_p, &me, ":*** Spoofing your IP. Congrats."); |
166 |
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|
167 |
michael |
4855 |
/* If this user is in the exception class, set it "E lined" */ |
168 |
michael |
3272 |
if (IsConfExemptKline(conf)) |
169 |
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{ |
170 |
michael |
6314 |
AddFlag(source_p, FLAGS_EXEMPTKLINE); |
171 |
michael |
5810 |
sendto_one_notice(source_p, &me, ":*** You are exempt from K/D lines. Congrats."); |
172 |
michael |
3272 |
} |
173 |
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174 |
michael |
5986 |
if (IsConfExemptXline(conf)) |
175 |
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{ |
176 |
michael |
6314 |
AddFlag(source_p, FLAGS_EXEMPTXLINE); |
177 |
michael |
5986 |
sendto_one_notice(source_p, &me, ":*** You are exempt from X lines. Congrats."); |
178 |
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} |
179 |
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180 |
michael |
3272 |
if (IsConfExemptResv(conf)) |
181 |
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{ |
182 |
michael |
6314 |
AddFlag(source_p, FLAGS_EXEMPTRESV); |
183 |
michael |
3272 |
sendto_one_notice(source_p, &me, ":*** You are exempt from resvs. Congrats."); |
184 |
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} |
185 |
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186 |
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/* If this user is exempt from user limits set it "F lined" */ |
187 |
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if (IsConfExemptLimits(conf)) |
188 |
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{ |
189 |
michael |
6314 |
AddFlag(source_p, FLAGS_NOLIMIT); |
190 |
michael |
3272 |
sendto_one_notice(source_p, &me, ":*** You are exempt from user limits. Congrats."); |
191 |
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} |
192 |
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193 |
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if (IsConfCanFlood(conf)) |
194 |
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{ |
195 |
michael |
6314 |
AddFlag(source_p, FLAGS_CANFLOOD); |
196 |
michael |
3272 |
sendto_one_notice(source_p, &me, ":*** You are exempt from flood " |
197 |
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"protection, aren't you fearsome."); |
198 |
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} |
199 |
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} |
200 |
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201 |
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/* introduce_client() |
202 |
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* |
203 |
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* inputs - source_p |
204 |
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* output - NONE |
205 |
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* side effects - This common function introduces a client to the rest |
206 |
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* of the net, either from a local client connect or |
207 |
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* from a remote connect. |
208 |
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*/ |
209 |
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static void |
210 |
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introduce_client(struct Client *source_p) |
211 |
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{ |
212 |
michael |
4816 |
dlink_node *node = NULL; |
213 |
michael |
3272 |
char ubuf[IRCD_BUFSIZE] = ""; |
214 |
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215 |
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if (MyClient(source_p)) |
216 |
michael |
4021 |
send_umode(source_p, source_p, 0, ubuf); |
217 |
michael |
3272 |
else |
218 |
michael |
4021 |
send_umode(NULL, source_p, 0, ubuf); |
219 |
michael |
3272 |
|
220 |
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watch_check_hash(source_p, RPL_LOGON); |
221 |
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222 |
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if (ubuf[0] == '\0') |
223 |
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{ |
224 |
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ubuf[0] = '+'; |
225 |
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ubuf[1] = '\0'; |
226 |
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} |
227 |
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|
228 |
michael |
4816 |
DLINK_FOREACH(node, local_server_list.head) |
229 |
michael |
3272 |
{ |
230 |
michael |
4816 |
struct Client *server = node->data; |
231 |
michael |
3272 |
|
232 |
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if (server == source_p->from) |
233 |
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continue; |
234 |
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|
235 |
michael |
6353 |
if (IsCapable(server, CAPAB_SVS)) |
236 |
michael |
5785 |
sendto_one(server, ":%s UID %s %u %lu %s %s %s %s %s %s :%s", |
237 |
michael |
3272 |
source_p->servptr->id, |
238 |
|
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source_p->name, source_p->hopcount+1, |
239 |
|
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(unsigned long)source_p->tsinfo, |
240 |
|
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ubuf, source_p->username, source_p->host, |
241 |
michael |
4964 |
source_p->sockhost, source_p->id, |
242 |
michael |
4820 |
source_p->account, |
243 |
michael |
3272 |
source_p->info); |
244 |
|
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else |
245 |
michael |
5785 |
sendto_one(server, ":%s UID %s %u %lu %s %s %s %s %s :%s", |
246 |
michael |
3272 |
source_p->servptr->id, |
247 |
|
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source_p->name, source_p->hopcount+1, |
248 |
|
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(unsigned long)source_p->tsinfo, |
249 |
|
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ubuf, source_p->username, source_p->host, |
250 |
michael |
4964 |
source_p->sockhost, source_p->id, source_p->info); |
251 |
michael |
3272 |
|
252 |
|
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if (!EmptyString(source_p->certfp)) |
253 |
|
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sendto_one(server, ":%s CERTFP %s", source_p->id, source_p->certfp); |
254 |
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} |
255 |
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} |
256 |
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|
257 |
|
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/* user_welcome() |
258 |
|
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* |
259 |
|
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* inputs - client pointer to client to welcome |
260 |
|
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* output - NONE |
261 |
|
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* side effects - |
262 |
|
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*/ |
263 |
|
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static void |
264 |
|
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user_welcome(struct Client *source_p) |
265 |
|
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{ |
266 |
|
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static const char built_date[] = __DATE__ " at " __TIME__; |
267 |
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|
268 |
|
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#ifdef HAVE_LIBCRYPTO |
269 |
|
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if (HasFlag(source_p, FLAGS_SSL)) |
270 |
|
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{ |
271 |
|
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AddUMode(source_p, UMODE_SSL); |
272 |
|
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sendto_one_notice(source_p, &me, ":*** Connected securely via %s", |
273 |
michael |
4589 |
ssl_get_cipher(source_p->connection->fd.ssl)); |
274 |
michael |
3272 |
} |
275 |
|
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#endif |
276 |
|
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|
277 |
michael |
4341 |
sendto_one_numeric(source_p, &me, RPL_WELCOME, ConfigServerInfo.network_name, |
278 |
michael |
3272 |
source_p->name); |
279 |
|
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sendto_one_numeric(source_p, &me, RPL_YOURHOST, |
280 |
michael |
6368 |
listener_get_name(source_p->connection->listener), ircd_version); |
281 |
michael |
3272 |
sendto_one_numeric(source_p, &me, RPL_CREATED, built_date); |
282 |
|
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sendto_one_numeric(source_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer); |
283 |
michael |
6253 |
|
284 |
michael |
6186 |
isupport_show(source_p); |
285 |
michael |
3272 |
show_lusers(source_p); |
286 |
|
|
motd_signon(source_p); |
287 |
|
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} |
288 |
|
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|
289 |
|
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/* check_xline() |
290 |
|
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* |
291 |
|
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* inputs - pointer to client to test |
292 |
|
|
* outupt - 1 if exiting 0 if ok |
293 |
|
|
* side effects - |
294 |
|
|
*/ |
295 |
|
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static int |
296 |
|
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check_xline(struct Client *source_p) |
297 |
|
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{ |
298 |
|
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struct MaskItem *conf = NULL; |
299 |
|
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|
300 |
michael |
6314 |
if (HasFlag(source_p, FLAGS_EXEMPTXLINE)) |
301 |
michael |
5986 |
return 0; |
302 |
|
|
|
303 |
michael |
3272 |
if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0))) |
304 |
|
|
{ |
305 |
|
|
++conf->count; |
306 |
|
|
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
307 |
|
|
"X-line Rejecting [%s] [%s], user %s [%s]", |
308 |
michael |
4939 |
source_p->info, conf->reason, |
309 |
michael |
3272 |
get_client_name(source_p, HIDE_IP), |
310 |
|
|
source_p->sockhost); |
311 |
|
|
|
312 |
|
|
++ServerStats.is_ref; |
313 |
|
|
exit_client(source_p, "Bad user info"); |
314 |
|
|
return 1; |
315 |
|
|
} |
316 |
|
|
|
317 |
|
|
return 0; |
318 |
|
|
} |
319 |
|
|
|
320 |
michael |
3317 |
/*! \brief This function is called when both NICK and USER messages |
321 |
michael |
3316 |
* have been accepted for the client, in whatever order. Only |
322 |
|
|
* after this, is the UID message propagated. |
323 |
michael |
3317 |
* \param source_p Pointer to given client to introduce |
324 |
michael |
3316 |
*/ |
325 |
adx |
30 |
void |
326 |
michael |
1080 |
register_local_user(struct Client *source_p) |
327 |
adx |
30 |
{ |
328 |
michael |
1115 |
const char *id = NULL; |
329 |
michael |
1632 |
const struct MaskItem *conf = NULL; |
330 |
adx |
30 |
|
331 |
michael |
1080 |
assert(source_p == source_p->from); |
332 |
adx |
30 |
assert(MyConnect(source_p)); |
333 |
michael |
5591 |
assert(IsUnknown(source_p)); |
334 |
michael |
4589 |
assert(!source_p->connection->registration); |
335 |
adx |
30 |
|
336 |
michael |
4341 |
if (ConfigGeneral.ping_cookie) |
337 |
adx |
30 |
{ |
338 |
michael |
6314 |
if (!HasFlag(source_p, FLAGS_PINGSENT) && !source_p->connection->random_ping) |
339 |
adx |
30 |
{ |
340 |
michael |
983 |
do |
341 |
michael |
4589 |
source_p->connection->random_ping = genrand_int32(); |
342 |
|
|
while (!source_p->connection->random_ping); |
343 |
michael |
983 |
|
344 |
michael |
4723 |
sendto_one(source_p, "PING :%u", source_p->connection->random_ping); |
345 |
michael |
6314 |
AddFlag(source_p, FLAGS_PINGSENT); |
346 |
adx |
30 |
return; |
347 |
|
|
} |
348 |
|
|
|
349 |
michael |
6314 |
if (!HasFlag(source_p, FLAGS_PING_COOKIE)) |
350 |
adx |
30 |
return; |
351 |
|
|
} |
352 |
|
|
|
353 |
michael |
4589 |
source_p->connection->last_privmsg = CurrentTime; |
354 |
adx |
30 |
/* Straight up the maximum rate of flooding... */ |
355 |
michael |
4589 |
source_p->connection->allow_read = MAX_FLOOD_BURST; |
356 |
adx |
30 |
|
357 |
michael |
1644 |
if (!check_client(source_p)) |
358 |
adx |
30 |
return; |
359 |
|
|
|
360 |
michael |
2314 |
if (!valid_hostname(source_p->host)) |
361 |
adx |
30 |
{ |
362 |
michael |
3110 |
sendto_one_notice(source_p, &me, ":*** Notice -- You have an illegal " |
363 |
|
|
"character in your hostname"); |
364 |
michael |
4723 |
strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host)); |
365 |
adx |
30 |
} |
366 |
|
|
|
367 |
michael |
4589 |
conf = source_p->connection->confs.head->data; |
368 |
adx |
30 |
|
369 |
michael |
6314 |
if (!HasFlag(source_p, FLAGS_GOTID)) |
370 |
adx |
30 |
{ |
371 |
michael |
3215 |
char username[USERLEN + 1] = ""; |
372 |
adx |
30 |
unsigned int i = 0; |
373 |
|
|
|
374 |
michael |
1632 |
if (IsNeedIdentd(conf)) |
375 |
adx |
30 |
{ |
376 |
michael |
896 |
++ServerStats.is_ref; |
377 |
michael |
3110 |
sendto_one_notice(source_p, &me, ":*** Notice -- You need to install " |
378 |
|
|
"identd to use this server"); |
379 |
michael |
3171 |
exit_client(source_p, "Install identd"); |
380 |
adx |
30 |
return; |
381 |
|
|
} |
382 |
|
|
|
383 |
michael |
1080 |
strlcpy(username, source_p->username, sizeof(username)); |
384 |
adx |
30 |
|
385 |
michael |
1632 |
if (!IsNoTilde(conf)) |
386 |
adx |
30 |
source_p->username[i++] = '~'; |
387 |
|
|
|
388 |
michael |
6358 |
for (const char *p = username; *p && i < USERLEN; ++p) |
389 |
michael |
4109 |
source_p->username[i++] = *p; |
390 |
adx |
30 |
|
391 |
|
|
source_p->username[i] = '\0'; |
392 |
|
|
} |
393 |
|
|
|
394 |
michael |
3317 |
/* Password check */ |
395 |
michael |
1632 |
if (!EmptyString(conf->passwd)) |
396 |
adx |
30 |
{ |
397 |
michael |
4589 |
if (!match_conf_password(source_p->connection->password, conf)) |
398 |
adx |
30 |
{ |
399 |
michael |
896 |
++ServerStats.is_ref; |
400 |
michael |
3109 |
|
401 |
|
|
sendto_one_numeric(source_p, &me, ERR_PASSWDMISMATCH); |
402 |
michael |
3171 |
exit_client(source_p, "Bad Password"); |
403 |
adx |
30 |
return; |
404 |
|
|
} |
405 |
|
|
} |
406 |
|
|
|
407 |
michael |
3317 |
/* |
408 |
michael |
4589 |
* Don't free source_p->connection->password here - it can be required |
409 |
michael |
4723 |
* by masked /stats I if there are auth {} blocks with need_password = no; |
410 |
adx |
30 |
* --adx |
411 |
|
|
*/ |
412 |
|
|
|
413 |
michael |
3317 |
/* |
414 |
|
|
* Report if user has &^>= etc. and set flags as needed in source_p |
415 |
|
|
*/ |
416 |
michael |
1632 |
report_and_set_user_flags(source_p, conf); |
417 |
adx |
30 |
|
418 |
michael |
1080 |
if (IsDead(source_p)) |
419 |
michael |
980 |
return; |
420 |
|
|
|
421 |
michael |
3317 |
/* |
422 |
|
|
* Limit clients - |
423 |
adx |
30 |
* We want to be able to have servers and F-line clients |
424 |
|
|
* connect, so save room for "buffer" connections. |
425 |
|
|
* Smaller servers may want to decrease this, and it should |
426 |
|
|
* probably be just a percentage of the MAXCLIENTS... |
427 |
|
|
* -Taner |
428 |
|
|
*/ |
429 |
michael |
5488 |
if ((Count.local >= GlobalSetOptions.maxclients + MAX_BUFFER) || |
430 |
michael |
6314 |
(Count.local >= GlobalSetOptions.maxclients && !HasFlag(source_p, FLAGS_NOLIMIT))) |
431 |
adx |
30 |
{ |
432 |
michael |
1618 |
sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE, |
433 |
adx |
30 |
"Too many clients, rejecting %s[%s].", |
434 |
michael |
1080 |
source_p->name, source_p->host); |
435 |
michael |
896 |
++ServerStats.is_ref; |
436 |
michael |
3171 |
exit_client(source_p, "Sorry, server is full - try later"); |
437 |
adx |
30 |
return; |
438 |
|
|
} |
439 |
|
|
|
440 |
michael |
2314 |
if (!valid_username(source_p->username, 1)) |
441 |
adx |
30 |
{ |
442 |
michael |
3375 |
char buf[IRCD_BUFSIZE] = ""; |
443 |
adx |
30 |
|
444 |
michael |
1618 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
445 |
|
|
"Invalid username: %s (%s@%s)", |
446 |
michael |
1080 |
source_p->name, source_p->username, source_p->host); |
447 |
michael |
896 |
++ServerStats.is_ref; |
448 |
michael |
3375 |
snprintf(buf, sizeof(buf), "Invalid username [%s]", source_p->username); |
449 |
|
|
exit_client(source_p, buf); |
450 |
adx |
30 |
return; |
451 |
|
|
} |
452 |
|
|
|
453 |
michael |
592 |
if (check_xline(source_p)) |
454 |
adx |
30 |
return; |
455 |
|
|
|
456 |
michael |
3215 |
while (hash_find_id((id = uid_get()))) |
457 |
michael |
1115 |
; |
458 |
michael |
573 |
|
459 |
michael |
1115 |
strlcpy(source_p->id, id, sizeof(source_p->id)); |
460 |
|
|
hash_add_id(source_p); |
461 |
adx |
30 |
|
462 |
michael |
1618 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
463 |
michael |
1137 |
"Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>", |
464 |
michael |
1080 |
source_p->name, source_p->username, source_p->host, |
465 |
michael |
4968 |
source_p->sockhost, |
466 |
michael |
4589 |
get_client_class(&source_p->connection->confs), |
467 |
michael |
1137 |
source_p->info, source_p->id); |
468 |
adx |
30 |
|
469 |
michael |
4341 |
if (ConfigGeneral.invisible_on_connect) |
470 |
michael |
159 |
{ |
471 |
michael |
1219 |
AddUMode(source_p, UMODE_INVISIBLE); |
472 |
michael |
980 |
++Count.invisi; |
473 |
michael |
159 |
} |
474 |
adx |
30 |
|
475 |
michael |
2314 |
if (++Count.local > Count.max_loc) |
476 |
adx |
30 |
{ |
477 |
|
|
Count.max_loc = Count.local; |
478 |
|
|
|
479 |
|
|
if (!(Count.max_loc % 10)) |
480 |
michael |
6317 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
481 |
michael |
4587 |
"New maximum local client connections: %u", |
482 |
adx |
30 |
Count.max_loc); |
483 |
|
|
} |
484 |
|
|
|
485 |
|
|
if (++Count.total > Count.max_tot) |
486 |
|
|
Count.max_tot = Count.total; |
487 |
michael |
948 |
++Count.totalrestartcount; |
488 |
adx |
30 |
|
489 |
michael |
1080 |
assert(source_p->servptr == &me); |
490 |
|
|
SetClient(source_p); |
491 |
|
|
dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list); |
492 |
michael |
4188 |
dlinkAdd(source_p, &source_p->node, &global_client_list); |
493 |
michael |
1080 |
|
494 |
michael |
1125 |
assert(dlinkFind(&unknown_list, source_p)); |
495 |
michael |
1013 |
|
496 |
michael |
4589 |
dlink_move_node(&source_p->connection->lclient_node, |
497 |
michael |
1126 |
&unknown_list, &local_client_list); |
498 |
adx |
30 |
|
499 |
|
|
user_welcome(source_p); |
500 |
michael |
6442 |
userhost_add(source_p->username, source_p->host, 0); |
501 |
michael |
6314 |
AddFlag(source_p, FLAGS_USERHOST); |
502 |
adx |
30 |
|
503 |
michael |
1080 |
introduce_client(source_p); |
504 |
adx |
30 |
} |
505 |
|
|
|
506 |
|
|
/* register_remote_user() |
507 |
|
|
* |
508 |
michael |
1080 |
* inputs - source_p remote or directly connected client |
509 |
adx |
30 |
* - username to register as |
510 |
|
|
* - host name to register as |
511 |
|
|
* - server name |
512 |
|
|
* output - NONE |
513 |
|
|
* side effects - This function is called when a remote client |
514 |
|
|
* is introduced by a server. |
515 |
|
|
*/ |
516 |
|
|
void |
517 |
michael |
4091 |
register_remote_user(struct Client *source_p) |
518 |
adx |
30 |
{ |
519 |
michael |
4224 |
const struct Client *target_p = NULL; |
520 |
adx |
30 |
|
521 |
|
|
if ((target_p = source_p->servptr) && target_p->from != source_p->from) |
522 |
|
|
{ |
523 |
michael |
1618 |
sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE, |
524 |
adx |
30 |
"Bad User [%s] :%s USER %s@%s %s, != %s[%s]", |
525 |
michael |
1080 |
source_p->from->name, source_p->name, source_p->username, |
526 |
adx |
30 |
source_p->host, source_p->servptr->name, |
527 |
|
|
target_p->name, target_p->from->name); |
528 |
michael |
3176 |
sendto_one(source_p->from, |
529 |
michael |
4973 |
":%s KILL %s :%s (UID from wrong direction (%s != %s))", |
530 |
michael |
3186 |
me.id, source_p->id, me.name, source_p->servptr->name, |
531 |
michael |
3176 |
target_p->from->name); |
532 |
|
|
|
533 |
michael |
1219 |
AddFlag(source_p, FLAGS_KILLED); |
534 |
michael |
4973 |
exit_client(source_p, "UID server wrong direction"); |
535 |
adx |
30 |
return; |
536 |
|
|
} |
537 |
|
|
|
538 |
michael |
1167 |
/* |
539 |
|
|
* If the nick has been introduced by a services server, |
540 |
|
|
* make it a service as well. |
541 |
|
|
*/ |
542 |
michael |
1219 |
if (HasFlag(source_p->servptr, FLAGS_SERVICE)) |
543 |
|
|
AddFlag(source_p, FLAGS_SERVICE); |
544 |
michael |
1167 |
|
545 |
michael |
510 |
if (++Count.total > Count.max_tot) |
546 |
|
|
Count.max_tot = Count.total; |
547 |
|
|
|
548 |
adx |
30 |
SetClient(source_p); |
549 |
michael |
889 |
dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list); |
550 |
michael |
4188 |
dlinkAdd(source_p, &source_p->node, &global_client_list); |
551 |
michael |
6442 |
userhost_add(source_p->username, source_p->host, 1); |
552 |
michael |
6314 |
AddFlag(source_p, FLAGS_USERHOST); |
553 |
adx |
30 |
|
554 |
michael |
1976 |
if (HasFlag(source_p->servptr, FLAGS_EOB)) |
555 |
michael |
5744 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
556 |
|
|
"Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>", |
557 |
|
|
source_p->servptr->name, |
558 |
|
|
source_p->name, source_p->username, source_p->host, |
559 |
|
|
source_p->sockhost, source_p->info, source_p->id); |
560 |
michael |
1976 |
|
561 |
michael |
1080 |
introduce_client(source_p); |
562 |
adx |
30 |
} |
563 |
|
|
|
564 |
|
|
/* valid_hostname() |
565 |
|
|
* |
566 |
|
|
* Inputs - pointer to hostname |
567 |
|
|
* Output - 1 if valid, 0 if not |
568 |
|
|
* Side effects - check hostname for validity |
569 |
|
|
* |
570 |
|
|
* NOTE: this doesn't allow a hostname to begin with a dot and |
571 |
|
|
* will not allow more dots than chars. |
572 |
|
|
*/ |
573 |
|
|
int |
574 |
|
|
valid_hostname(const char *hostname) |
575 |
|
|
{ |
576 |
|
|
const char *p = hostname; |
577 |
|
|
|
578 |
michael |
3235 |
assert(p); |
579 |
adx |
30 |
|
580 |
michael |
2352 |
if (EmptyString(p) || *p == '.' || *p == ':') |
581 |
michael |
56 |
return 0; |
582 |
adx |
30 |
|
583 |
michael |
1080 |
for (; *p; ++p) |
584 |
adx |
30 |
if (!IsHostChar(*p)) |
585 |
michael |
56 |
return 0; |
586 |
adx |
30 |
|
587 |
michael |
1795 |
return p - hostname <= HOSTLEN; |
588 |
adx |
30 |
} |
589 |
|
|
|
590 |
|
|
/* valid_username() |
591 |
|
|
* |
592 |
|
|
* Inputs - pointer to user |
593 |
|
|
* Output - 1 if valid, 0 if not |
594 |
|
|
* Side effects - check username for validity |
595 |
|
|
* |
596 |
|
|
* Absolutely always reject any '*' '!' '?' '@' in an user name |
597 |
|
|
* reject any odd control characters names. |
598 |
|
|
* Allow '.' in username to allow for "first.last" |
599 |
|
|
* style of username |
600 |
|
|
*/ |
601 |
|
|
int |
602 |
michael |
2069 |
valid_username(const char *username, const int local) |
603 |
adx |
30 |
{ |
604 |
michael |
3871 |
unsigned int dots = 0; |
605 |
adx |
30 |
const char *p = username; |
606 |
|
|
|
607 |
michael |
3235 |
assert(p); |
608 |
adx |
30 |
|
609 |
michael |
1080 |
if (*p == '~') |
610 |
adx |
30 |
++p; |
611 |
|
|
|
612 |
michael |
2067 |
/* |
613 |
|
|
* Reject usernames that don't start with an alphanum |
614 |
adx |
30 |
* i.e. reject jokers who have '-@somehost' or '.@somehost' |
615 |
|
|
* or "-hi-@somehost", "h-----@somehost" would still be accepted. |
616 |
|
|
*/ |
617 |
|
|
if (!IsAlNum(*p)) |
618 |
michael |
56 |
return 0; |
619 |
adx |
30 |
|
620 |
michael |
2067 |
if (local) |
621 |
adx |
30 |
{ |
622 |
michael |
2067 |
while (*++p) |
623 |
adx |
30 |
{ |
624 |
michael |
4341 |
if (*p == '.' && ConfigGeneral.dots_in_ident) |
625 |
michael |
2067 |
{ |
626 |
michael |
4341 |
if (++dots > ConfigGeneral.dots_in_ident) |
627 |
michael |
2067 |
return 0; |
628 |
|
|
if (!IsUserChar(*(p + 1))) |
629 |
|
|
return 0; |
630 |
|
|
} |
631 |
|
|
else if (!IsUserChar(*p)) |
632 |
michael |
56 |
return 0; |
633 |
adx |
30 |
} |
634 |
|
|
} |
635 |
michael |
2067 |
else |
636 |
|
|
{ |
637 |
|
|
while (*++p) |
638 |
|
|
if (!IsUserChar(*p)) |
639 |
|
|
return 0; |
640 |
|
|
} |
641 |
adx |
30 |
|
642 |
michael |
3657 |
return p - username <= USERLEN; |
643 |
adx |
30 |
} |
644 |
|
|
|
645 |
michael |
1165 |
/* clean_nick_name() |
646 |
|
|
* |
647 |
|
|
* input - nickname |
648 |
|
|
* - whether it's a local nick (1) or remote (0) |
649 |
|
|
* output - none |
650 |
|
|
* side effects - walks through the nickname, returning 0 if erroneous |
651 |
|
|
*/ |
652 |
|
|
int |
653 |
|
|
valid_nickname(const char *nickname, const int local) |
654 |
|
|
{ |
655 |
|
|
const char *p = nickname; |
656 |
michael |
3318 |
|
657 |
michael |
4983 |
assert(p); |
658 |
michael |
1165 |
|
659 |
michael |
3317 |
/* |
660 |
|
|
* Nicks can't start with a digit or - or be 0 length. |
661 |
|
|
*/ |
662 |
michael |
4708 |
if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local)) |
663 |
michael |
1165 |
return 0; |
664 |
|
|
|
665 |
|
|
for (; *p; ++p) |
666 |
|
|
if (!IsNickChar(*p)) |
667 |
|
|
return 0; |
668 |
|
|
|
669 |
michael |
1431 |
return p - nickname <= NICKLEN; |
670 |
michael |
1165 |
} |
671 |
|
|
|
672 |
adx |
30 |
/* send_umode() |
673 |
|
|
* send the MODE string for user (user) to connection client_p |
674 |
|
|
* -avalon |
675 |
db |
849 |
* |
676 |
|
|
* inputs - client_p |
677 |
|
|
* - source_p |
678 |
|
|
* - int old |
679 |
|
|
* - suplied umode_buf |
680 |
|
|
* output - NONE |
681 |
adx |
30 |
*/ |
682 |
|
|
void |
683 |
|
|
send_umode(struct Client *client_p, struct Client *source_p, |
684 |
michael |
4021 |
unsigned int old, char *umode_buf) |
685 |
adx |
30 |
{ |
686 |
michael |
1013 |
char *m = umode_buf; |
687 |
adx |
30 |
int what = 0; |
688 |
|
|
|
689 |
michael |
56 |
/* |
690 |
michael |
3317 |
* Build a string in umode_buf to represent the change in the user's |
691 |
adx |
30 |
* mode between the new (source_p->umodes) and 'old'. |
692 |
|
|
*/ |
693 |
michael |
5393 |
for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
694 |
adx |
30 |
{ |
695 |
michael |
5393 |
if ((tab->flag & old) && !HasUMode(source_p, tab->flag)) |
696 |
adx |
30 |
{ |
697 |
|
|
if (what == MODE_DEL) |
698 |
michael |
5393 |
*m++ = tab->c; |
699 |
adx |
30 |
else |
700 |
|
|
{ |
701 |
|
|
what = MODE_DEL; |
702 |
|
|
*m++ = '-'; |
703 |
michael |
5393 |
*m++ = tab->c; |
704 |
adx |
30 |
} |
705 |
|
|
} |
706 |
michael |
5393 |
else if (!(tab->flag & old) && HasUMode(source_p, tab->flag)) |
707 |
adx |
30 |
{ |
708 |
|
|
if (what == MODE_ADD) |
709 |
michael |
5393 |
*m++ = tab->c; |
710 |
adx |
30 |
else |
711 |
|
|
{ |
712 |
|
|
what = MODE_ADD; |
713 |
|
|
*m++ = '+'; |
714 |
michael |
5393 |
*m++ = tab->c; |
715 |
adx |
30 |
} |
716 |
|
|
} |
717 |
|
|
} |
718 |
|
|
|
719 |
|
|
*m = '\0'; |
720 |
|
|
|
721 |
|
|
if (*umode_buf && client_p) |
722 |
michael |
528 |
sendto_one(client_p, ":%s!%s@%s MODE %s :%s", |
723 |
michael |
4705 |
client_p->name, client_p->username, |
724 |
|
|
client_p->host, client_p->name, umode_buf); |
725 |
adx |
30 |
} |
726 |
|
|
|
727 |
|
|
/* send_umode_out() |
728 |
|
|
* |
729 |
|
|
* inputs - |
730 |
|
|
* output - NONE |
731 |
|
|
* side effects - Only send ubuf out to servers that know about this client |
732 |
|
|
*/ |
733 |
|
|
void |
734 |
michael |
4706 |
send_umode_out(struct Client *source_p, unsigned int old) |
735 |
adx |
30 |
{ |
736 |
michael |
3215 |
char buf[IRCD_BUFSIZE] = ""; |
737 |
adx |
30 |
|
738 |
michael |
4706 |
send_umode(MyClient(source_p) ? source_p : NULL, source_p, old, buf); |
739 |
adx |
30 |
|
740 |
michael |
573 |
if (buf[0]) |
741 |
michael |
4963 |
sendto_server(source_p, 0, 0, ":%s MODE %s :%s", |
742 |
michael |
3186 |
source_p->id, source_p->id, buf); |
743 |
adx |
30 |
} |
744 |
|
|
|
745 |
michael |
1819 |
void |
746 |
michael |
2137 |
user_set_hostmask(struct Client *target_p, const char *hostname, const int what) |
747 |
michael |
1819 |
{ |
748 |
michael |
4816 |
dlink_node *node = NULL; |
749 |
michael |
2141 |
|
750 |
michael |
2145 |
if (!strcmp(target_p->host, hostname)) |
751 |
|
|
return; |
752 |
michael |
2141 |
|
753 |
michael |
2137 |
switch (what) |
754 |
|
|
{ |
755 |
|
|
case MODE_ADD: |
756 |
|
|
AddUMode(target_p, UMODE_HIDDENHOST); |
757 |
|
|
break; |
758 |
|
|
case MODE_DEL: |
759 |
|
|
DelUMode(target_p, UMODE_HIDDENHOST); |
760 |
|
|
break; |
761 |
michael |
2145 |
default: return; |
762 |
michael |
2137 |
} |
763 |
|
|
|
764 |
michael |
4341 |
if (ConfigGeneral.cycle_on_host_change) |
765 |
michael |
2289 |
sendto_common_channels_local(target_p, 0, 0, ":%s!%s@%s QUIT :Changing hostname", |
766 |
|
|
target_p->name, target_p->username, target_p->host); |
767 |
michael |
2145 |
|
768 |
michael |
6314 |
if (HasFlag(target_p, FLAGS_USERHOST)) |
769 |
michael |
6442 |
userhost_del(target_p->username, target_p->host, !MyConnect(target_p)); |
770 |
michael |
2145 |
|
771 |
|
|
strlcpy(target_p->host, hostname, sizeof(target_p->host)); |
772 |
|
|
|
773 |
michael |
6442 |
userhost_add(target_p->username, target_p->host, !MyConnect(target_p)); |
774 |
michael |
6314 |
AddFlag(target_p, FLAGS_USERHOST); |
775 |
michael |
2145 |
|
776 |
michael |
6731 |
if (MyConnect(target_p)) |
777 |
michael |
2137 |
{ |
778 |
michael |
4558 |
sendto_one_numeric(target_p, &me, RPL_VISIBLEHOST, target_p->host); |
779 |
michael |
1819 |
clear_ban_cache_client(target_p); |
780 |
michael |
2137 |
} |
781 |
michael |
2141 |
|
782 |
michael |
4341 |
if (!ConfigGeneral.cycle_on_host_change) |
783 |
michael |
2283 |
return; |
784 |
|
|
|
785 |
michael |
4816 |
DLINK_FOREACH(node, target_p->channel.head) |
786 |
michael |
2141 |
{ |
787 |
michael |
3215 |
char modebuf[4], nickbuf[NICKLEN * 3 + 3] = ""; |
788 |
michael |
2141 |
char *p = modebuf; |
789 |
|
|
int len = 0; |
790 |
michael |
4816 |
const struct Membership *member = node->data; |
791 |
michael |
2141 |
|
792 |
michael |
4816 |
if (has_member_flags(member, CHFL_CHANOP)) |
793 |
michael |
2283 |
{ |
794 |
michael |
2141 |
*p++ = 'o'; |
795 |
|
|
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
796 |
|
|
} |
797 |
|
|
|
798 |
michael |
4816 |
if (has_member_flags(member, CHFL_HALFOP)) |
799 |
michael |
2283 |
{ |
800 |
michael |
2141 |
*p++ = 'h'; |
801 |
|
|
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
802 |
|
|
} |
803 |
|
|
|
804 |
michael |
4816 |
if (has_member_flags(member, CHFL_VOICE)) |
805 |
michael |
2283 |
{ |
806 |
michael |
2141 |
*p++ = 'v'; |
807 |
|
|
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
808 |
|
|
} |
809 |
|
|
|
810 |
|
|
*p = '\0'; |
811 |
|
|
|
812 |
michael |
4793 |
|
813 |
michael |
4945 |
sendto_channel_local_butone(target_p, CAP_EXTENDED_JOIN, 0, member->chptr, ":%s!%s@%s JOIN %s %s :%s", |
814 |
michael |
4793 |
target_p->name, target_p->username, |
815 |
michael |
4816 |
target_p->host, member->chptr->name, |
816 |
michael |
4820 |
(!IsDigit(target_p->account[0]) && target_p->account[0] != '*') ? target_p->account : "*", |
817 |
michael |
4793 |
target_p->info); |
818 |
michael |
4945 |
sendto_channel_local_butone(target_p, 0, CAP_EXTENDED_JOIN, member->chptr, ":%s!%s@%s JOIN :%s", |
819 |
michael |
4793 |
target_p->name, target_p->username, |
820 |
michael |
4816 |
target_p->host, member->chptr->name); |
821 |
michael |
4793 |
|
822 |
michael |
2141 |
if (nickbuf[0]) |
823 |
michael |
4816 |
sendto_channel_local_butone(target_p, 0, 0, member->chptr, ":%s MODE %s +%s %s", |
824 |
|
|
target_p->servptr->name, member->chptr->name, |
825 |
michael |
2141 |
modebuf, nickbuf); |
826 |
|
|
|
827 |
|
|
} |
828 |
|
|
|
829 |
|
|
if (target_p->away[0]) |
830 |
|
|
sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY, |
831 |
|
|
":%s!%s@%s AWAY :%s", |
832 |
|
|
target_p->name, target_p->username, |
833 |
|
|
target_p->host, target_p->away); |
834 |
michael |
1819 |
} |