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

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Revision 34 - (show annotations)
Sun Oct 2 21:05:51 2005 UTC (14 years ago) by lusky
File MIME type: text/x-chdr
File size: 3430 byte(s)
create 7.2 branch, we can move/rename it as needed.


1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_llnick.c: Used to introduce a client on a lazy-link.
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 "tools.h"
27 #include "client.h"
28 #include "hash.h"
29 #include "common.h"
30 #include "hash.h"
31 #include "irc_string.h"
32 #include "ircd.h"
33 #include "list.h"
34 #include "numeric.h"
35 #include "s_serv.h"
36 #include "send.h"
37 #include "handlers.h"
38 #include "msg.h"
39 #include "parse.h"
40 #include "modules.h"
41
42
43 static void ms_llnick(struct Client*, struct Client*, int, char**);
44
45 struct Message llnick_msgtab = {
46 "LLNICK", 0, 0, 3, 0, MFLG_SLOW | MFLG_UNREG, 0L,
47 {m_unregistered, m_ignore, ms_llnick, m_ignore, m_ignore, m_ignore}
48 };
49 #ifndef STATIC_MODULES
50
51 void
52 _modinit(void)
53 {
54 mod_add_cmd(&llnick_msgtab);
55 }
56
57 void
58 _moddeinit(void)
59 {
60 mod_del_cmd(&llnick_msgtab);
61 }
62
63 const char *_version = "$Revision$";
64 #endif
65 /*
66 * m_llnick
67 * parv[0] = sender prefix
68 * parv[1] = status
69 * parv[2] = nick
70 * parv[3] = old nick
71 *
72 */
73 static void
74 ms_llnick(struct Client *client_p, struct Client *source_p,
75 int parc, char *parv[])
76 {
77 char *nick;
78 char *nick_old = NULL;
79 struct Client *target_p = NULL;
80 int exists = 0;
81 int new = 0;
82 dlink_node *ptr;
83
84 if(!IsCapable(client_p,CAP_LL) || !IsCapable(client_p, CAP_HUB))
85 {
86 sendto_realops_flags(UMODE_ALL, L_ALL,
87 "*** LLNICK requested from non LL server %s",
88 client_p->name);
89 return;
90 }
91
92 if (parc < 4)
93 return;
94
95 if (*parv[1] == 'Y')
96 exists = 1;
97
98 nick = parv[2];
99 nick_old = parv[3];
100
101 if (*nick_old == '!')
102 new = 1;
103
104 if (new)
105 {
106 nick_old++; /* skip '!' */
107 /* New user -- find them */
108 DLINK_FOREACH(ptr, unknown_list.head)
109 {
110 if( !strcmp(nick_old, ((struct Client *)ptr->data)->llname) )
111 {
112 target_p = ptr->data;
113 *target_p->llname = '\0'; /* unset their temp-nick */
114 break;
115 }
116 }
117 if (!target_p) /* Can't find them -- maybe they got a different nick */
118 return;
119 }
120 else
121 {
122 /* Existing user changing nickname */
123 target_p = find_client(nick_old);
124
125 if (!target_p) /* Can't find them -- maybe they got a different nick */
126 return;
127 }
128
129 /* Don't try this on a remote client... */
130 if (!MyConnect(target_p))
131 return;
132
133 if(find_client(nick) || exists)
134 {
135 /* The nick they want is in use. complain */
136 sendto_one(target_p, form_str(ERR_NICKNAMEINUSE), me.name,
137 new ? "*" : nick_old,
138 nick);
139 return;
140 }
141
142 if(new)
143 set_initial_nick(target_p, target_p, nick);
144 else
145 change_local_nick(target_p, target_p, nick);
146 }

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