modules/core/m_squit.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2015 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_squit.c
 * \brief Includes required functions for processing the SQUIT command.
 * \version $Id$
 */

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


/*! \brief SQUIT 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] = server name
 *      - parv[2] = comment
 */
static int
mo_squit(struct Client *source_p, int parc, char *parv[])
{
  char comment[REASONLEN + 1] = "";
  struct Client *target_p = NULL;
  dlink_node *node = NULL;
  const char *server = parv[1];

  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "SQUIT");
    return 0;
  }

  /* The following allows wild cards in SQUIT. */
  DLINK_FOREACH(node, global_server_list.head)
  {
    struct Client *p = node->data;

    if (IsServer(p) || IsMe(p))
    {
      if (!match(server, p->name))
      {
        target_p = p;
        break;
      }
    }
  }

  if (!target_p || IsMe(target_p))
  {
    sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, server);
    return 0;
  }

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

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

  if (!EmptyString(parv[2]))
    strlcpy(comment, parv[2], sizeof(comment));
  else
    strlcpy(comment, CONF_NOREASON, sizeof(comment));

  if (MyConnect(target_p))
  {
    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "Received SQUIT %s from %s (%s)",
                         target_p->name, get_client_name(source_p, HIDE_IP), comment);
    ilog(LOG_TYPE_IRCD, "Received SQUIT %s from %s (%s)",
         target_p->name, get_client_name(source_p, HIDE_IP), comment);

    /* To them, we are exiting */
    sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);

    /* Send to everything but target */
    sendto_server(target_p, 0, 0, ":%s SQUIT %s :%s",
                  source_p->id, target_p->id, comment);
  }
  else
    /* Send to everything */
    sendto_server(NULL, 0, 0, ":%s SQUIT %s :%s",
                  source_p->id, target_p->id, comment);

  AddFlag(target_p, FLAGS_SQUIT);

  exit_client(target_p, comment);
  return 0;
}

/*! \brief SQUIT 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] = server name
 *      - parv[2] = comment
 */
static int
ms_squit(struct Client *source_p, int parc, char *parv[])
{
  struct Client *target_p = NULL;
  const char *comment = NULL;
  dlink_node *node = NULL;

  if (parc < 2 || EmptyString(parv[1]))
    return 0;

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

  if (!IsServer(target_p) && !IsMe(target_p))
    return 0;

  if (IsMe(target_p))
    target_p = source_p->from;

  comment = (parc > 2 && parv[parc - 1]) ? parv[parc - 1] : source_p->name;

  if (MyConnect(target_p))
  {
    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_GLOBAL, "from %s: Remote SQUIT %s from %s (%s)",
                         me.name, target_p->name, source_p->name, comment);
    sendto_server(source_p, 0, 0, ":%s GLOBOPS :Remote SQUIT %s from %s (%s)",
                  me.id, target_p->name, source_p->name, comment);
    ilog(LOG_TYPE_IRCD, "SQUIT From %s : %s (%s)", source_p->name,
         target_p->name, comment);

    /* To them, we are exiting */
    sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);

    /* Send to everything but target and source */
    DLINK_FOREACH(node, local_server_list.head)
    {
      struct Client *client_p = node->data;

      if (client_p == target_p || client_p == source_p->from)
        continue;

      sendto_one(client_p, ":%s SQUIT %s :%s",
                 source_p->id, target_p->id, comment);
    }
  }
  else
    /* Send to everything but source */
    sendto_server(source_p, 0, 0, ":%s SQUIT %s :%s",
                  source_p->id, target_p->id, comment);

  AddFlag(target_p, FLAGS_SQUIT);

  exit_client(target_p, comment);
  return 0;
}

static struct Message squit_msgtab =
{
  "SQUIT", NULL, 0, 0, 1, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_not_oper, ms_squit, m_ignore, mo_squit, m_ignore }
};

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

static void
module_exit(void)
{
  mod_del_cmd(&squit_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:	5346
Committed:	Sun Jan 11 12:41:14 2015 UTC (9 years, 3 months ago) by michael
Content type:	text/x-csrc
File size:	6443 byte(s)
Log Message:	- Update copyright years
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	5346	* Copyright (c) 1997-2015 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	michael	4564	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	adx	30	* USA
20			*/
21
22	michael	2820	/*! \file m_squit.c
23			* \brief Includes required functions for processing the SQUIT 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			#include "hash.h"
31			#include "irc_string.h"
32			#include "ircd.h"
33			#include "numeric.h"
34	michael	1309	#include "conf.h"
35			#include "log.h"
36	michael	3347	#include "server.h"
37	adx	30	#include "send.h"
38			#include "parse.h"
39			#include "modules.h"
40
41
42	michael	4598	/*! \brief SQUIT command handler
43			*
44			* \param source_p Pointer to allocated Client struct from which the message
45			* originally comes from. This can be a local or remote client.
46			* \param parc Integer holding the number of supplied arguments.
47			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
48			* pointers.
49			* \note Valid arguments for this command are:
50			* - parv[0] = command
51			* - parv[1] = server name
52			* - parv[2] = comment
53	adx	30	*/
54	michael	2820	static int
55	michael	3156	mo_squit(struct Client source_p, int parc, char parv[])
56	adx	30	{
57	michael	3904	char comment[REASONLEN + 1] = "";
58	adx	30	struct Client *target_p = NULL;
59	michael	4816	dlink_node *node = NULL;
60	michael	4771	const char *server = parv[1];
61	adx	30
62			if (parc < 2 \|\| EmptyString(parv[1]))
63			{
64	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "SQUIT");
65	michael	2820	return 0;
66	adx	30	}
67
68	michael	4771	/* The following allows wild cards in SQUIT. */
69	michael	4816	DLINK_FOREACH(node, global_server_list.head)
70	adx	30	{
71	michael	4816	struct Client *p = node->data;
72	adx	30
73			if (IsServer(p) \|\| IsMe(p))
74			{
75	michael	1652	if (!match(server, p->name))
76	adx	30	{
77			target_p = p;
78			break;
79			}
80			}
81			}
82
83	michael	4771	if (!target_p \|\| IsMe(target_p))
84	adx	30	{
85	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, server);
86	michael	2820	return 0;
87	adx	30	}
88
89	michael	2801	if (!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT_REMOTE))
90	adx	30	{
91	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "squit:remote");
92	michael	2820	return 0;
93	adx	30	}
94
95	michael	2801	if (MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT))
96			{
97	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "squit");
98	michael	2820	return 0;
99	michael	2801	}
100
101	michael	3904	if (!EmptyString(parv[2]))
102			strlcpy(comment, parv[2], sizeof(comment));
103			else
104			strlcpy(comment, CONF_NOREASON, sizeof(comment));
105	adx	30
106			if (MyConnect(target_p))
107			{
108	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
109			"Received SQUIT %s from %s (%s)",
110	adx	30	target_p->name, get_client_name(source_p, HIDE_IP), comment);
111	michael	1247	ilog(LOG_TYPE_IRCD, "Received SQUIT %s from %s (%s)",
112	adx	30	target_p->name, get_client_name(source_p, HIDE_IP), comment);
113	michael	3171
114			/* To them, we are exiting */
115	michael	3186	sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);
116	michael	4771
117	michael	3171	/* Send to everything but target */
118	michael	4963	sendto_server(target_p, 0, 0, ":%s SQUIT %s :%s",
119	michael	3186	source_p->id, target_p->id, comment);
120	adx	30	}
121	michael	3171	else
122			/* Send to everything */
123	michael	4963	sendto_server(NULL, 0, 0, ":%s SQUIT %s :%s",
124	michael	3186	source_p->id, target_p->id, comment);
125	adx	30
126	michael	3171	AddFlag(target_p, FLAGS_SQUIT);
127
128			exit_client(target_p, comment);
129	michael	2820	return 0;
130	adx	30	}
131
132	michael	4598	/*! \brief SQUIT command handler
133			*
134			* \param source_p Pointer to allocated Client struct from which the message
135			* originally comes from. This can be a local or remote client.
136			* \param parc Integer holding the number of supplied arguments.
137			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
138			* pointers.
139			* \note Valid arguments for this command are:
140			* - parv[0] = command
141			* - parv[1] = server name
142			* - parv[2] = comment
143	adx	30	*/
144	michael	2820	static int
145	michael	3156	ms_squit(struct Client source_p, int parc, char parv[])
146	adx	30	{
147			struct Client *target_p = NULL;
148	michael	1572	const char *comment = NULL;
149	michael	4816	dlink_node *node = NULL;
150	adx	30
151	michael	4768	if (parc < 2 \|\| EmptyString(parv[1]))
152	michael	2820	return 0;
153	adx	30
154	michael	1572	if ((target_p = hash_find_server(parv[1])) == NULL)
155	michael	2820	return 0;
156	adx	30
157	michael	1572	if (!IsServer(target_p) && !IsMe(target_p))
158	michael	2820	return 0;
159	adx	30
160	michael	1572	if (IsMe(target_p))
161	michael	3156	target_p = source_p->from;
162	adx	30
163	michael	3156	comment = (parc > 2 && parv[parc - 1]) ? parv[parc - 1] : source_p->name;
164	adx	30
165			if (MyConnect(target_p))
166			{
167	michael	3850	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_GLOBAL, "from %s: Remote SQUIT %s from %s (%s)",
168			me.name, target_p->name, source_p->name, comment);
169	michael	4963	sendto_server(source_p, 0, 0, ":%s GLOBOPS :Remote SQUIT %s from %s (%s)",
170	adx	30	me.id, target_p->name, source_p->name, comment);
171	michael	1247	ilog(LOG_TYPE_IRCD, "SQUIT From %s : %s (%s)", source_p->name,
172	adx	30	target_p->name, comment);
173	michael	3171
174			/* To them, we are exiting */
175	michael	3186	sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);
176	michael	3171
177			/* Send to everything but target and source */
178	michael	4816	DLINK_FOREACH(node, local_server_list.head)
179	michael	3171	{
180	michael	4816	struct Client *client_p = node->data;
181	michael	3171
182			if (client_p == target_p \|\| client_p == source_p->from)
183			continue;
184
185			sendto_one(client_p, ":%s SQUIT %s :%s",
186	michael	3186	source_p->id, target_p->id, comment);
187	michael	3171	}
188	michael	2820	}
189	michael	3171	else
190			/* Send to everything but source */
191	michael	4963	sendto_server(source_p, 0, 0, ":%s SQUIT %s :%s",
192	michael	3186	source_p->id, target_p->id, comment);
193	adx	30
194	michael	3171	AddFlag(target_p, FLAGS_SQUIT);
195
196			exit_client(target_p, comment);
197	michael	2820	return 0;
198	adx	30	}
199	michael	1230
200	michael	2820	static struct Message squit_msgtab =
201			{
202	michael	4546	"SQUIT", NULL, 0, 0, 1, MAXPARA, MFLG_SLOW, 0,
203	michael	2820	{ m_unregistered, m_not_oper, ms_squit, m_ignore, mo_squit, m_ignore }
204	michael	1230	};
205
206			static void
207			module_init(void)
208			{
209			mod_add_cmd(&squit_msgtab);
210			}
211
212			static void
213			module_exit(void)
214			{
215			mod_del_cmd(&squit_msgtab);
216			}
217
218	michael	2820	struct module module_entry =
219			{
220	michael	1230	.node = { NULL, NULL, NULL },
221			.name = NULL,
222			.version = "$Revision$",
223			.handle = NULL,
224			.modinit = module_init,
225			.modexit = module_exit,
226			.flags = MODULE_FLAG_CORE
227			};