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Revision 7468 - (show annotations)
Sat Mar 12 19:06:56 2016 UTC (6 years, 10 months ago) by michael
File MIME type: text/x-chdr
File size: 4518 byte(s)
- m_svsnick.c:ms_svsnick(): split up if statement

1 /*
2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 *
4 * Copyright (c) 1999 Bahamut development team.
5 * Copyright (c) 2011-2016 ircd-hybrid development team
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
20 * USA
21 */
22
23 /*! \file m_svsnick.c
24 * \brief Includes required functions for processing the SVSNICK command.
25 * \version $Id$
26 */
27
28
29 #include "stdinc.h"
30 #include "client.h"
31 #include "ircd.h"
32 #include "channel_mode.h"
33 #include "send.h"
34 #include "parse.h"
35 #include "modules.h"
36 #include "irc_string.h"
37 #include "user.h"
38 #include "hash.h"
39 #include "watch.h"
40 #include "whowas.h"
41
42
43 /*! \brief SVSNICK command handler
44 *
45 * \param source_p Pointer to allocated Client struct from which the message
46 * originally comes from. This can be a local or remote client.
47 * \param parc Integer holding the number of supplied arguments.
48 * \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
49 * pointers.
50 * \note Valid arguments for this command are:
51 * - parv[0] = command
52 * - parv[1] = old nickname
53 * - parv[2] = new nickname
54 * - parv[3] = timestamp
55 */
56 static int
57 ms_svsnick(struct Client *source_p, int parc, char *parv[])
58 {
59 struct Client *target_p = NULL, *exists_p = NULL;
60
61 if (!HasFlag(source_p, FLAGS_SERVICE))
62 return 0;
63
64 if (!valid_nickname(parv[2], 1))
65 return 0;
66
67 if ((target_p = find_person(source_p, parv[1])) == NULL)
68 return 0;
69
70 if (!MyConnect(target_p))
71 {
72 if (target_p->from == source_p->from)
73 {
74 sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
75 "Received wrong-direction SVSNICK "
76 "for %s (behind %s) from %s",
77 target_p->name, source_p->from->name,
78 get_client_name(source_p, HIDE_IP));
79 return 0;
80 }
81
82 sendto_one(target_p, ":%s SVSNICK %s %s %s", source_p->id,
83 target_p->id, parv[2], parv[3]);
84 return 0;
85 }
86
87 if ((exists_p = hash_find_client(parv[2])))
88 {
89 if (target_p == exists_p)
90 {
91 if (!strcmp(target_p->name, parv[2]))
92 return 0;
93 }
94 else if (IsUnknown(exists_p))
95 exit_client(exists_p, "SVSNICK Override");
96 else
97 {
98 exit_client(target_p, "SVSNICK Collide");
99 return 0;
100 }
101 }
102
103 target_p->tsinfo = strtoumax(parv[3], NULL, 10);
104 clear_ban_cache_client(target_p);
105 watch_check_hash(target_p, RPL_LOGOFF);
106
107 if (HasUMode(target_p, UMODE_REGISTERED))
108 {
109 const unsigned int oldmodes = target_p->umodes;
110 char modebuf[IRCD_BUFSIZE] = "";
111
112 DelUMode(target_p, UMODE_REGISTERED);
113 send_umode(target_p, target_p, oldmodes, modebuf);
114 }
115
116 sendto_common_channels_local(target_p, 1, 0, 0, ":%s!%s@%s NICK :%s",
117 target_p->name, target_p->username,
118 target_p->host, parv[2]);
119
120 whowas_add_history(target_p, 1);
121
122 sendto_server(NULL, 0, 0, ":%s NICK %s :%ju",
123 target_p->id, parv[2], target_p->tsinfo);
124 hash_del_client(target_p);
125 strlcpy(target_p->name, parv[2], sizeof(target_p->name));
126 hash_add_client(target_p);
127
128 watch_check_hash(target_p, RPL_LOGON);
129
130 fd_note(&target_p->connection->fd, "Nick: %s", target_p->name);
131 return 0;
132 }
133
134 static struct Message svsnick_msgtab =
135 {
136 .cmd = "SVSNICK",
137 .args_min = 4,
138 .args_max = MAXPARA,
139 .handlers[UNREGISTERED_HANDLER] = m_ignore,
140 .handlers[CLIENT_HANDLER] = m_ignore,
141 .handlers[SERVER_HANDLER] = ms_svsnick,
142 .handlers[ENCAP_HANDLER] = m_ignore,
143 .handlers[OPER_HANDLER] = m_ignore
144 };
145
146 static void
147 module_init(void)
148 {
149 mod_add_cmd(&svsnick_msgtab);
150 }
151
152 static void
153 module_exit(void)
154 {
155 mod_del_cmd(&svsnick_msgtab);
156 }
157
158 struct module module_entry =
159 {
160 .version = "$Revision$",
161 .modinit = module_init,
162 .modexit = module_exit,
163 };

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