trunk/modules/m_svsnick.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1999 Bahamut development team.
 *  Copyright (c) 2011-2014 ircd-hybrid development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

/*! \file m_svsnick.c
 * \brief Includes required functions for processing the SVSNICK command.
 * \version $Id$
 */


#include "stdinc.h"
#include "client.h"
#include "ircd.h"
#include "channel_mode.h"
#include "numeric.h"
#include "server.h"
#include "send.h"
#include "parse.h"
#include "modules.h"
#include "irc_string.h"
#include "user.h"
#include "hash.h"
#include "watch.h"
#include "whowas.h"


/*! \brief SVSNICK command handler
 *
 * \param source_p Pointer to allocated Client struct from which the message
 *                 originally comes from.  This can be a local or remote client.
 * \param parc     Integer holding the number of supplied arguments.
 * \param parv     Argument vector where parv[0] .. parv[parc-1] are non-NULL
 *                 pointers.
 * \note Valid arguments for this command are:
 *      - parv[0] = command
 *      - parv[1] = old nickname
 *      - parv[2] = new nickname
 *      - parv[3] = timestamp
 */
static int
ms_svsnick(struct Client *source_p, int parc, char *parv[])
{
  struct Client *target_p = NULL, *exists_p = NULL;

  if (!HasFlag(source_p, FLAGS_SERVICE) || !valid_nickname(parv[2], 1))
    return 0;

  if ((target_p = find_person(source_p, parv[1])) == NULL)
    return 0;

  if (!MyConnect(target_p))
  {
    if (target_p->from == source_p->from)
    {
      sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
                           "Received wrong-direction SVSNICK "
                           "for %s (behind %s) from %s",
                           target_p->name, source_p->from->name,
                           get_client_name(source_p, HIDE_IP));
      return 0;
    }

    sendto_one(target_p, ":%s SVSNICK %s %s %s", source_p->id,
               target_p->id, parv[2], parv[3]);
    return 0;
  }

  if ((exists_p = hash_find_client(parv[2])))
  {
    if (target_p == exists_p)
    {
      if (!strcmp(target_p->name, parv[2]))
        return 0;
    }
    else if (IsUnknown(exists_p))
      exit_client(exists_p, "SVSNICK Override");
    else
    {
      exit_client(target_p, "SVSNICK Collide");
      return 0;
    }
  }

  target_p->tsinfo = atoi(parv[3]);
  clear_ban_cache_client(target_p);
  watch_check_hash(target_p, RPL_LOGOFF);

  if (HasUMode(target_p, UMODE_REGISTERED))
  {
    unsigned int oldmodes = target_p->umodes;
    char modebuf[IRCD_BUFSIZE] = "";

    DelUMode(target_p, UMODE_REGISTERED);
    send_umode(target_p, target_p, oldmodes, modebuf);
  }

  sendto_common_channels_local(target_p, 1, 0, ":%s!%s@%s NICK :%s",
                               target_p->name, target_p->username,
                               target_p->host, parv[2]);

  whowas_add_history(target_p, 1);

  sendto_server(NULL, NOCAPS, NOCAPS, ":%s NICK %s :%lu",
                target_p->id, parv[2], (unsigned long)target_p->tsinfo);
  hash_del_client(target_p);
  strlcpy(target_p->name, parv[2], sizeof(target_p->name));
  hash_add_client(target_p);

  watch_check_hash(target_p, RPL_LOGON);

  fd_note(&target_p->connection->fd, "Nick: %s", parv[2]);
  return 0;
}

static struct Message svsnick_msgtab =
{
  "SVSNICK", NULL, 0, 0, 4, MAXPARA, MFLG_SLOW, 0,
  { m_ignore, m_ignore, ms_svsnick, m_ignore, m_ignore, m_ignore }
};

static void
module_init(void)
{
  mod_add_cmd(&svsnick_msgtab);
}

static void
module_exit(void)
{
  mod_del_cmd(&svsnick_msgtab);
}

struct module module_entry =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	4588
Committed:	Tue Aug 26 15:59:07 2014 UTC (11 years, 10 months ago) by michael
Content type:	text/x-csrc
File size:	4476 byte(s)
Log Message:	- Renamed 'localClient' Client structure member to just 'connection'
#	User	Rev	Content
1	michael	1165	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	michael	1165	*
4	michael	2820	* Copyright (c) 1999 Bahamut development team.
5			* Copyright (c) 2011-2014 ircd-hybrid development team
6	michael	1165	*
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	michael	4565	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
20	michael	1165	* USA
21			*/
22
23			/*! \file m_svsnick.c
24	michael	1221	* \brief Includes required functions for processing the SVSNICK command.
25	michael	1165	* \version $Id$
26			*/
27
28	michael	2820
29	michael	1165	#include "stdinc.h"
30			#include "client.h"
31			#include "ircd.h"
32			#include "channel_mode.h"
33			#include "numeric.h"
34	michael	3347	#include "server.h"
35	michael	1165	#include "send.h"
36			#include "parse.h"
37			#include "modules.h"
38			#include "irc_string.h"
39	michael	3347	#include "user.h"
40	michael	1165	#include "hash.h"
41			#include "watch.h"
42			#include "whowas.h"
43
44
45	michael	3300	/*! \brief SVSNICK command handler
46	michael	1165	*
47			* \param source_p Pointer to allocated Client struct from which the message
48			* originally comes from. This can be a local or remote client.
49			* \param parc Integer holding the number of supplied arguments.
50			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
51			* pointers.
52			* \note Valid arguments for this command are:
53	michael	3096	* - parv[0] = command
54	michael	1165	* - parv[1] = old nickname
55			* - parv[2] = new nickname
56			* - parv[3] = timestamp
57			*/
58	michael	2820	static int
59	michael	3156	ms_svsnick(struct Client source_p, int parc, char parv[])
60	michael	1165	{
61			struct Client target_p = NULL, exists_p = NULL;
62
63	michael	1221	if (!HasFlag(source_p, FLAGS_SERVICE) \|\| !valid_nickname(parv[2], 1))
64	michael	2820	return 0;
65	michael	1165
66	michael	3967	if ((target_p = find_person(source_p, parv[1])) == NULL)
67	michael	2820	return 0;
68	michael	1165
69	michael	3967	if (!MyConnect(target_p))
70			{
71			if (target_p->from == source_p->from)
72			{
73			sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
74			"Received wrong-direction SVSNICK "
75			"for %s (behind %s) from %s",
76			target_p->name, source_p->from->name,
77			get_client_name(source_p, HIDE_IP));
78			return 0;
79			}
80
81			sendto_one(target_p, ":%s SVSNICK %s %s %s", source_p->id,
82			target_p->id, parv[2], parv[3]);
83	michael	2820	return 0;
84	michael	3967	}
85	michael	1165
86	michael	1169	if ((exists_p = hash_find_client(parv[2])))
87	michael	1165	{
88	michael	3138	if (target_p == exists_p)
89			{
90			if (!strcmp(target_p->name, parv[2]))
91			return 0;
92			}
93			else if (IsUnknown(exists_p))
94	michael	3171	exit_client(exists_p, "SVSNICK Override");
95	michael	1165	else
96			{
97	michael	3171	exit_client(target_p, "SVSNICK Collide");
98	michael	2820	return 0;
99	michael	1165	}
100			}
101
102			target_p->tsinfo = atoi(parv[3]);
103			clear_ban_cache_client(target_p);
104			watch_check_hash(target_p, RPL_LOGOFF);
105
106			if (HasUMode(target_p, UMODE_REGISTERED))
107			{
108			unsigned int oldmodes = target_p->umodes;
109	michael	3246	char modebuf[IRCD_BUFSIZE] = "";
110	michael	1165
111			DelUMode(target_p, UMODE_REGISTERED);
112	michael	4020	send_umode(target_p, target_p, oldmodes, modebuf);
113	michael	1165	}
114
115	michael	1734	sendto_common_channels_local(target_p, 1, 0, ":%s!%s@%s NICK :%s",
116	michael	1165	target_p->name, target_p->username,
117			target_p->host, parv[2]);
118
119	michael	2300	whowas_add_history(target_p, 1);
120	michael	1165
121	michael	3135	sendto_server(NULL, NOCAPS, NOCAPS, ":%s NICK %s :%lu",
122	michael	3186	target_p->id, parv[2], (unsigned long)target_p->tsinfo);
123	michael	1165	hash_del_client(target_p);
124			strlcpy(target_p->name, parv[2], sizeof(target_p->name));
125			hash_add_client(target_p);
126
127			watch_check_hash(target_p, RPL_LOGON);
128
129	michael	4588	fd_note(&target_p->connection->fd, "Nick: %s", parv[2]);
130	michael	2820	return 0;
131	michael	1165	}
132	michael	1230
133	michael	2820	static struct Message svsnick_msgtab =
134			{
135	michael	4545	"SVSNICK", NULL, 0, 0, 4, MAXPARA, MFLG_SLOW, 0,
136	michael	3596	{ m_ignore, m_ignore, ms_svsnick, m_ignore, m_ignore, m_ignore }
137	michael	1230	};
138
139			static void
140			module_init(void)
141			{
142			mod_add_cmd(&svsnick_msgtab);
143			}
144
145			static void
146			module_exit(void)
147			{
148			mod_del_cmd(&svsnick_msgtab);
149			}
150
151	michael	2820	struct module module_entry =
152			{
153	michael	1230	.node = { NULL, NULL, NULL },
154			.name = NULL,
155			.version = "$Revision$",
156			.handle = NULL,
157			.modinit = module_init,
158			.modexit = module_exit,
159			.flags = 0
160			};