modules/core/m_kill.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2014 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 */

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

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "hash.h"
#include "ircd.h"
#include "numeric.h"
#include "log.h"
#include "server.h"
#include "conf.h"
#include "send.h"
#include "whowas.h"
#include "irc_string.h"
#include "parse.h"
#include "modules.h"


/* mo_kill()
 *  parv[0] = command
 *  parv[1] = kill victim
 *  parv[2] = kill path
 */
static int
mo_kill(struct Client *source_p, int parc, char *parv[])
{
  char buf[IRCD_BUFSIZE] = "";
  char def_reason[] = CONF_NOREASON;
  struct Client *target_p = NULL;
  char *reason = NULL;

  if (EmptyString(parv[1]))
  {
    sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "KILL");
    return 0;
  }

  reason = parv[2];  /* Either defined or NULL (parc >= 2!!) */

  if (!EmptyString(reason))
  {
    if (strlen(reason) > (size_t)KILLLEN)
      reason[KILLLEN] = '\0';
  }
  else
    reason = def_reason;

  if ((target_p = hash_find_client(parv[1])) == NULL)
  {
    /*
     * If the user has recently changed nick, automatically
     * rewrite the KILL for this new nickname--this keeps
     * servers in synch when nick change and kill collide
     */
    if ((target_p = whowas_get_history(parv[1],
                                (time_t)ConfigFileEntry.kill_chase_time_limit))
                                == NULL)
    {
      sendto_one_numeric(source_p, &me, ERR_NOSUCHNICK, parv[1]);
      return 0;
    }

    sendto_one_notice(source_p, &me, ":KILL changed from %s to %s",
                      parv[1], target_p->name);
  }

  if (!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_KILL_REMOTE))
  {
    sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "kill:remote");
    return 0;
  }

  if (MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_KILL))
  {
    sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "kill");
    return 0;
  }

  if (IsServer(target_p) || IsMe(target_p))
  {
    sendto_one_numeric(source_p, &me, ERR_CANTKILLSERVER);
    return 0;
  }

  if (MyConnect(target_p))
    sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
               source_p->name, source_p->username, source_p->host,
               target_p->name, reason);

  /*
   * Do not change the format of this message. There's no point in changing messages
   * that have been around for ever, for no reason..
   */
  sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                       "Received KILL message for %s!%s@%s[%s/%s]. From %s Path: %s (%s)",
                       target_p->name, target_p->username, target_p->host,
                       target_p->servptr->name,
                       target_p->servptr->id,
                       source_p->name, me.name, reason);

  ilog(LOG_TYPE_KILL, "KILL From %s For %s Path %s (%s)",
       source_p->name, target_p->name, me.name, reason);

  /*
   * And pass on the message to other servers. Note, that if KILL
   * was changed, the message has to be sent to all links, also
   * back.
   * Suicide kills are NOT passed on --SRB
   */
  if (!MyConnect(target_p))
  {
    sendto_server(source_p, NOCAPS, NOCAPS, ":%s KILL %s :%s!%s!%s!%s (%s)",
                  source_p->id, target_p->id, me.name, source_p->host,
                  source_p->username, source_p->name, reason);

    /*
     * Set FLAGS_KILLED. This prevents exit_one_client from sending
     * the unnecessary QUIT for this. (This flag should never be
     * set in any other place)
     */
    AddFlag(target_p, FLAGS_KILLED);
  }

  snprintf(buf, sizeof(buf), "Killed (%s (%s))", source_p->name, reason);
  exit_client(target_p, buf);
  return 0;
}

/* ms_kill()
 *  parv[0] = command
 *  parv[1] = kill victim
 *  parv[2] = kill path and reason
 */
static int
ms_kill(struct Client *source_p, int parc, char *parv[])
{
  char buf[IRCD_BUFSIZE] = "";
  char def_reason[] = CONF_NOREASON;
  struct Client *target_p = NULL;
  char *reason = NULL;

  if (parc < 3 || EmptyString(parv[2]))
  {
    sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "KILL");
    return 0;
  }

  if ((target_p = hash_find_id(parv[1])) == NULL)
    return 0;

  if ((reason = strchr(parv[2], ' ')))
    *reason++ = '\0';
  else
    reason = def_reason;

  if (IsServer(target_p) || IsMe(target_p))
  {
    sendto_one_numeric(source_p, &me, ERR_CANTKILLSERVER);
    return 0;
  }

  if (MyConnect(target_p))
  {
    if (IsServer(source_p))
    {
      /* dont send clients kills from a hidden server */
      if ((IsHidden(source_p) || ConfigServerHide.hide_servers) && !HasUMode(target_p, UMODE_OPER))
        sendto_one(target_p, ":%s KILL %s :%s",
                   me.name, target_p->name, reason);
      else
        sendto_one(target_p, ":%s KILL %s :%s",
                   source_p->name, target_p->name, reason);
    }
    else
      sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
                 source_p->name, source_p->username, source_p->host,
                 target_p->name, reason);
  }

  /*
   * Be warned, this message must be From %s, or it confuses clients
   * so dont change it to From: or the case or anything! -- fl -- db
   */
  /*
   * path must contain at least 2 !'s, or bitchx falsely declares it
   * local --fl
   */
  if (HasUMode(source_p, UMODE_OPER)) /* send it normally */
    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "Received KILL message for %s!%s@%s[%s/%s]. From %s Path: %s!%s!%s!%s %s",
                         target_p->name, target_p->username, target_p->host,
                         target_p->servptr->name,
                         target_p->servptr->id, source_p->name,
                         source_p->servptr->name, source_p->host, source_p->username,
                         source_p->name, reason);
  else
    sendto_realops_flags(UMODE_SKILL, L_ALL, SEND_NOTICE,
                         "Received KILL message for %s!%s@%s[%s/%s]. From %s %s",
                         target_p->name, target_p->username, target_p->host,
                         target_p->servptr->name,
                         target_p->servptr->id,
                         source_p->name, reason);

  ilog(LOG_TYPE_KILL, "KILL From %s For %s Path %s %s",
       source_p->name, target_p->name, source_p->name, reason);

  sendto_server(source_p, NOCAPS, NOCAPS, ":%s KILL %s :%s %s",
                source_p->id, target_p->id, parv[2], reason);
  AddFlag(target_p, FLAGS_KILLED);

  /* reason comes supplied with its own ()'s */
  if (IsServer(source_p) && (IsHidden(source_p) || ConfigServerHide.hide_servers))
    snprintf(buf, sizeof(buf), "Killed (%s %s)", me.name, reason);
  else
    snprintf(buf, sizeof(buf), "Killed (%s %s)", source_p->name, reason);

  exit_client(target_p, buf);
  return 0;
}


static struct Message kill_msgtab =
{
  "KILL", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_not_oper, ms_kill, m_ignore, mo_kill, m_ignore }
};

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

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

struct module module_entry =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = MODULE_FLAG_CORE
};
Revision:	3347
Committed:	Sun Apr 20 14:03:06 2014 UTC (9 years, 11 months ago) by michael
Content type:	text/x-csrc
File size:	8149 byte(s)
Log Message:	- Moved files: s_user.c -> user.c s_misc.c -> misc.c s_serv.c -> server.c
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	2820	* Copyright (c) 1997-2014 ircd-hybrid development team
5	adx	30	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19			* USA
20			*/
21
22	michael	2820	/*! \file m_kill.c
23			* \brief Includes required functions for processing the KILL command.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28	michael	1011	#include "list.h"
29	adx	30	#include "client.h"
30	michael	2820	#include "hash.h"
31	adx	30	#include "ircd.h"
32			#include "numeric.h"
33	michael	1309	#include "log.h"
34	michael	3347	#include "server.h"
35	michael	1309	#include "conf.h"
36	adx	30	#include "send.h"
37			#include "whowas.h"
38			#include "irc_string.h"
39			#include "parse.h"
40			#include "modules.h"
41
42
43			/* mo_kill()
44	michael	3096	* parv[0] = command
45	adx	30	* parv[1] = kill victim
46			* parv[2] = kill path
47			*/
48	michael	2820	static int
49	michael	3156	mo_kill(struct Client source_p, int parc, char parv[])
50	adx	30	{
51	michael	3179	char buf[IRCD_BUFSIZE] = "";
52	michael	1794	char def_reason[] = CONF_NOREASON;
53	michael	3201	struct Client *target_p = NULL;
54			char *reason = NULL;
55	adx	30
56	michael	3201	if (EmptyString(parv[1]))
57	adx	30	{
58	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "KILL");
59	michael	2820	return 0;
60	adx	30	}
61
62	michael	3201	reason = parv[2]; /* Either defined or NULL (parc >= 2!!) */
63
64	adx	30	if (!EmptyString(reason))
65			{
66			if (strlen(reason) > (size_t)KILLLEN)
67			reason[KILLLEN] = '\0';
68			}
69			else
70			reason = def_reason;
71
72	michael	3201	if ((target_p = hash_find_client(parv[1])) == NULL)
73	adx	30	{
74	michael	1136	/*
75			* If the user has recently changed nick, automatically
76	adx	30	* rewrite the KILL for this new nickname--this keeps
77			* servers in synch when nick change and kill collide
78			*/
79	michael	3201	if ((target_p = whowas_get_history(parv[1],
80	michael	1451	(time_t)ConfigFileEntry.kill_chase_time_limit))
81			== NULL)
82	adx	30	{
83	michael	3201	sendto_one_numeric(source_p, &me, ERR_NOSUCHNICK, parv[1]);
84	michael	2820	return 0;
85	adx	30	}
86
87	michael	3110	sendto_one_notice(source_p, &me, ":KILL changed from %s to %s",
88	michael	3201	parv[1], target_p->name);
89	adx	30	}
90
91	michael	2801	if (!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_KILL_REMOTE))
92	adx	30	{
93	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "kill:remote");
94	michael	2820	return 0;
95	adx	30	}
96
97	michael	2801	if (MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_KILL))
98			{
99	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "kill");
100	michael	2820	return 0;
101	michael	2801	}
102
103	michael	2012	if (IsServer(target_p) \|\| IsMe(target_p))
104	adx	30	{
105	michael	3109	sendto_one_numeric(source_p, &me, ERR_CANTKILLSERVER);
106	michael	2820	return 0;
107	adx	30	}
108
109			if (MyConnect(target_p))
110	michael	2820	sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
111	adx	30	source_p->name, source_p->username, source_p->host,
112			target_p->name, reason);
113
114	michael	1136	/*
115			* Do not change the format of this message. There's no point in changing messages
116			* that have been around for ever, for no reason..
117			*/
118	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
119	michael	2820	"Received KILL message for %s!%s@%s[%s/%s]. From %s Path: %s (%s)",
120	michael	2037	target_p->name, target_p->username, target_p->host,
121			target_p->servptr->name,
122	michael	3201	target_p->servptr->id,
123	michael	2037	source_p->name, me.name, reason);
124	adx	30
125	michael	1247	ilog(LOG_TYPE_KILL, "KILL From %s For %s Path %s (%s)",
126	adx	30	source_p->name, target_p->name, me.name, reason);
127
128			/*
129	michael	1136	* And pass on the message to other servers. Note, that if KILL
130			* was changed, the message has to be sent to all links, also
131			* back.
132			* Suicide kills are NOT passed on --SRB
133			*/
134	adx	30	if (!MyConnect(target_p))
135			{
136	michael	3179	sendto_server(source_p, NOCAPS, NOCAPS, ":%s KILL %s :%s!%s!%s!%s (%s)",
137			source_p->id, target_p->id, me.name, source_p->host,
138			source_p->username, source_p->name, reason);
139	michael	3201
140	michael	3179	/*
141			* Set FLAGS_KILLED. This prevents exit_one_client from sending
142			* the unnecessary QUIT for this. (This flag should never be
143			* set in any other place)
144			*/
145	michael	1219	AddFlag(target_p, FLAGS_KILLED);
146	adx	30	}
147
148	michael	1136	snprintf(buf, sizeof(buf), "Killed (%s (%s))", source_p->name, reason);
149	michael	3171	exit_client(target_p, buf);
150	michael	2820	return 0;
151	adx	30	}
152
153			/* ms_kill()
154	michael	3096	* parv[0] = command
155	adx	30	* parv[1] = kill victim
156			* parv[2] = kill path and reason
157			*/
158	michael	2820	static int
159	michael	3156	ms_kill(struct Client source_p, int parc, char parv[])
160	adx	30	{
161	michael	3179	char buf[IRCD_BUFSIZE] = "";
162	michael	1794	char def_reason[] = CONF_NOREASON;
163	michael	3200	struct Client *target_p = NULL;
164			char *reason = NULL;
165	adx	30
166	michael	3201	if (parc < 3 \|\| EmptyString(parv[2]))
167	adx	30	{
168	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "KILL");
169	michael	2820	return 0;
170	adx	30	}
171
172	michael	3201	if ((target_p = hash_find_id(parv[1])) == NULL)
173			return 0;
174
175	michael	3200	if ((reason = strchr(parv[2], ' ')))
176			*reason++ = '\0';
177			else
178	adx	30	reason = def_reason;
179
180			if (IsServer(target_p) \|\| IsMe(target_p))
181			{
182	michael	3109	sendto_one_numeric(source_p, &me, ERR_CANTKILLSERVER);
183	michael	2820	return 0;
184	adx	30	}
185
186			if (MyConnect(target_p))
187			{
188			if (IsServer(source_p))
189			{
190			/* dont send clients kills from a hidden server */
191	michael	1219	if ((IsHidden(source_p) \|\| ConfigServerHide.hide_servers) && !HasUMode(target_p, UMODE_OPER))
192	adx	30	sendto_one(target_p, ":%s KILL %s :%s",
193	michael	1451	me.name, target_p->name, reason);
194	adx	30	else
195	michael	1451	sendto_one(target_p, ":%s KILL %s :%s",
196			source_p->name, target_p->name, reason);
197	adx	30	}
198			else
199			sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
200	michael	1451	source_p->name, source_p->username, source_p->host,
201			target_p->name, reason);
202	adx	30	}
203
204	michael	1451	/*
205			* Be warned, this message must be From %s, or it confuses clients
206			* so dont change it to From: or the case or anything! -- fl -- db
207			*/
208			/*
209			* path must contain at least 2 !'s, or bitchx falsely declares it
210	adx	30	* local --fl
211			*/
212	michael	1219	if (HasUMode(source_p, UMODE_OPER)) /* send it normally */
213	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
214	michael	2037	"Received KILL message for %s!%s@%s[%s/%s]. From %s Path: %s!%s!%s!%s %s",
215			target_p->name, target_p->username, target_p->host,
216			target_p->servptr->name,
217	michael	3201	target_p->servptr->id, source_p->name,
218	michael	2037	source_p->servptr->name, source_p->host, source_p->username,
219			source_p->name, reason);
220	adx	30	else
221	michael	1618	sendto_realops_flags(UMODE_SKILL, L_ALL, SEND_NOTICE,
222	michael	2037	"Received KILL message for %s!%s@%s[%s/%s]. From %s %s",
223			target_p->name, target_p->username, target_p->host,
224			target_p->servptr->name,
225	michael	3201	target_p->servptr->id,
226	michael	2037	source_p->name, reason);
227	adx	30
228	michael	1247	ilog(LOG_TYPE_KILL, "KILL From %s For %s Path %s %s",
229	adx	30	source_p->name, target_p->name, source_p->name, reason);
230
231	michael	3179	sendto_server(source_p, NOCAPS, NOCAPS, ":%s KILL %s :%s %s",
232	michael	3200	source_p->id, target_p->id, parv[2], reason);
233	michael	1219	AddFlag(target_p, FLAGS_KILLED);
234	adx	30
235			/* reason comes supplied with its own ()'s */
236			if (IsServer(source_p) && (IsHidden(source_p) \|\| ConfigServerHide.hide_servers))
237	michael	1136	snprintf(buf, sizeof(buf), "Killed (%s %s)", me.name, reason);
238	adx	30	else
239	michael	1136	snprintf(buf, sizeof(buf), "Killed (%s %s)", source_p->name, reason);
240	adx	30
241	michael	3171	exit_client(target_p, buf);
242	michael	2820	return 0;
243	adx	30	}
244
245
246	michael	2820	static struct Message kill_msgtab =
247			{
248	michael	1230	"KILL", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
249	michael	2820	{ m_unregistered, m_not_oper, ms_kill, m_ignore, mo_kill, m_ignore }
250	michael	1230	};
251
252			static void
253			module_init(void)
254			{
255			mod_add_cmd(&kill_msgtab);
256			}
257
258			static void
259			module_exit(void)
260			{
261			mod_del_cmd(&kill_msgtab);
262			}
263
264	michael	2820	struct module module_entry =
265			{
266	michael	1230	.node = { NULL, NULL, NULL },
267			.name = NULL,
268			.version = "$Revision$",
269			.handle = NULL,
270			.modinit = module_init,
271			.modexit = module_exit,
272			.flags = MODULE_FLAG_CORE
273			};