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root/svn/ircd-hybrid/contrib/m_change.c
Revision: 344
Committed: Sat Dec 31 09:41:44 2005 UTC (20 years, 7 months ago) by michael
Content type: text/x-csrc
File size: 6716 byte(s)
Log Message:
- Flag the client as being ip-spoofed if setting a new hostname via CHGHOST,
  that way non-opers can't figure out the IP with a simple WHOIS.
  Suggested by adx


File Contents

# Content
1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_change.c: Allows changing user/host/real of connected clients.
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 /* List of ircd includes from ../include/ */
26 #include "stdinc.h"
27 #include "handlers.h"
28 #include "client.h"
29 #include "common.h" /* FALSE bleah */
30 #include "ircd.h"
31 #include "numeric.h"
32 #include "s_conf.h"
33 #include "s_serv.h"
34 #include "send.h"
35 #include "msg.h"
36 #include "parse.h"
37 #include "modules.h"
38 #include "s_user.h"
39 #include "hash.h"
40
41 static void mo_chgident(struct Client *, struct Client *, int, char *[]);
42 static void mo_chghost(struct Client *, struct Client *, int, char *[]);
43 static void mo_chgname(struct Client *, struct Client *, int, char *[]);
44
45 struct Message chgident_msgtab = {
46 "CHGIDENT", 0, 0, 2, 0, MFLG_SLOW, 0,
47 { m_unregistered, m_not_oper, mo_chgident, mo_chgident, mo_chgident, m_ignore }
48 };
49
50 struct Message chghost_msgtab = {
51 "CHGHOST", 0, 0, 2, 0, MFLG_SLOW, 0,
52 { m_unregistered, m_not_oper, mo_chghost, mo_chghost, mo_chghost, m_ignore }
53 };
54
55 struct Message chgname_msgtab = {
56 "CHGNAME", 0, 0, 2, 0, MFLG_SLOW, 0,
57 { m_unregistered, m_not_oper, mo_chgname, mo_chgname, mo_chgname, m_ignore }
58 };
59
60 #ifndef STATIC_MODULES
61 void
62 _modinit(void)
63 {
64 mod_add_cmd(&chgident_msgtab);
65 mod_add_cmd(&chghost_msgtab);
66 mod_add_cmd(&chgname_msgtab);
67 }
68
69 void
70 _moddeinit(void)
71 {
72 mod_del_cmd(&chgname_msgtab);
73 mod_del_cmd(&chghost_msgtab);
74 mod_del_cmd(&chgident_msgtab);
75 }
76
77 const char *_version = "$Revision$";
78 #endif
79
80 static void
81 mo_chgident(struct Client *client_p, struct Client *source_p,
82 int parc, char *parv[])
83 {
84 struct Client *target_p = NULL;
85
86 if (MyClient(source_p) && !IsOperAdmin(source_p))
87 {
88 sendto_one(source_p, form_str(ERR_NOPRIVS),
89 me.name, parv[0], "CHGIDENT");
90 return;
91 }
92
93 if (EmptyString(parv[2]))
94 {
95 parv[2] = parv[1];
96
97 target_p = source_p;
98 if (!IsClient(target_p))
99 return;
100 }
101 else {
102 target_p = find_client(parv[1]);
103
104 if (target_p == NULL || !IsClient(target_p))
105 {
106 sendto_one(source_p, form_str(ERR_NOSUCHNICK),
107 me.name, parv[0], parv[1]);
108 return;
109 }
110 }
111
112 if (strlen(parv[2]) > USERLEN || !*parv[2] || !valid_username(parv[2]))
113 {
114 sendto_one(source_p, ":%s NOTICE %s :Invalid username", me.name, parv[0]);
115 return;
116 }
117
118 strcpy(target_p->username, parv[2]);
119
120 if (MyClient(source_p))
121 {
122 sendto_server(client_p, source_p, NULL, NOCAPS, NOCAPS, LL_ICLIENT,
123 ":%s ENCAP * CHGIDENT %s %s",
124 parv[0], target_p->name, parv[2]);
125 sendto_one(source_p, ":%s NOTICE %s :%s changed to %s@%s",
126 me.name, parv[0], target_p->name, target_p->username,
127 target_p->host);
128 }
129
130 if (MyConnect(target_p) && IsClient(source_p))
131 sendto_one(target_p, ":%s NOTICE %s :You are now %s@%s",
132 me.name, target_p->name, target_p->username, target_p->host);
133 }
134
135 static void
136 mo_chghost(struct Client *client_p, struct Client *source_p,
137 int parc, char *parv[])
138 {
139 struct Client *target_p = NULL;
140
141 if (MyClient(source_p) && !IsOperAdmin(source_p))
142 {
143 sendto_one(source_p, form_str(ERR_NOPRIVS),
144 me.name, parv[0], "CHGHOST");
145 return;
146 }
147
148 if (EmptyString(parv[2]))
149 {
150 parv[2] = parv[1];
151
152 target_p = source_p;
153 if (!IsClient(target_p))
154 return;
155 }
156 else {
157 target_p = find_client(parv[1]);
158 if (target_p == NULL || !IsClient(target_p))
159 {
160 sendto_one(source_p, form_str(ERR_NOSUCHNICK),
161 me.name, parv[0], parv[1]);
162 return;
163 }
164 }
165
166 if (strlen(parv[2]) > HOSTLEN || !*parv[2] || !valid_hostname(parv[2]))
167 {
168 sendto_one(source_p, ":%s NOTICE %s :Invalid hostname", me.name, parv[0]);
169 return;
170 }
171
172 strcpy(target_p->host, parv[2]);
173 SetIPSpoof(target_p);
174
175 if (MyClient(source_p))
176 {
177 sendto_server(client_p, source_p, NULL, NOCAPS, NOCAPS, LL_ICLIENT,
178 ":%s ENCAP * CHGHOST %s :%s",
179 parv[0], target_p->name, parv[2]);
180 sendto_one(source_p, ":%s NOTICE %s :%s changed to %s@%s",
181 me.name, parv[0], target_p->name, target_p->username,
182 target_p->host);
183 }
184
185 if (MyConnect(target_p) && IsClient(source_p))
186 sendto_one(target_p, ":%s NOTICE %s :You are now %s@%s",
187 me.name, target_p->name, target_p->username, target_p->host);
188 }
189
190 static void
191 mo_chgname(struct Client *client_p, struct Client *source_p,
192 int parc, char *parv[])
193 {
194 struct Client *target_p = NULL;
195
196 if (MyClient(source_p) && !IsOperAdmin(source_p))
197 {
198 sendto_one(source_p, form_str(ERR_NOPRIVS),
199 me.name, parv[0], "CHGNAME");
200 return;
201 }
202
203 if (EmptyString(parv[2]))
204 {
205 parv[2] = parv[1];
206 target_p = source_p;
207 }
208 else if ((target_p = find_client(parv[1])) == NULL)
209 {
210 sendto_one(source_p, form_str(ERR_NOSUCHNICK),
211 me.name, parv[0], parv[1]);
212 return;
213 }
214
215 if (strlen(parv[2]) > REALLEN || !*parv[2])
216 {
217 sendto_one(source_p, ":%s NOTICE %s :Invalid realname", me.name, parv[0]);
218 return;
219 }
220
221 if (parc > 3 && MyClient(source_p))
222 sendto_one(source_p, ":%s NOTICE %s :Warning -- too many parameters "
223 "for CHGNAME. You are probably missing a : before the new "
224 "IRC name.", me.name, parv[0]);
225
226 strcpy(target_p->info, parv[2]);
227
228 if (MyClient(source_p))
229 {
230 sendto_server(client_p, source_p, NULL, NOCAPS, NOCAPS, LL_ICLIENT,
231 ":%s ENCAP * CHGNAME %s :%s",
232 parv[0], target_p->name, parv[2]);
233 sendto_one(source_p, ":%s NOTICE %s :%s realname changed to [%s]",
234 me.name, parv[0], target_p->name, target_p->info);
235 }
236
237 if (MyClient(target_p) && IsClient(source_p))
238 sendto_one(target_p, ":%s NOTICE %s :Your realname is now [%s]",
239 me.name, target_p->name, target_p->info);
240 }

Properties

Name Value
svn:eol-style native
svn:keywords Id Revision