trunk/modules/m_undline.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_undline.c
 * \brief Includes required functions for processing the UNDLINE command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "irc_string.h"
#include "conf.h"
#include "ircd.h"
#include "hostmask.h"
#include "numeric.h"
#include "log.h"
#include "misc.h"
#include "send.h"
#include "server.h"
#include "parse.h"
#include "modules.h"
#include "conf_db.h"
#include "memory.h"


/* static int remove_tdline_match(const char *host, const char *user)
 * Input: An ip to undline.
 * Output: returns YES on success, NO if no tdline removed.
 * Side effects: Any matching tdlines are removed.
 */
static int
dline_remove(const char *host)
{
  struct irc_ssaddr iphost, *piphost;
  struct MaskItem *conf;
  int t = 0;
  int aftype = 0;

  if ((t = parse_netmask(host, &iphost, NULL)) != HM_HOST)
  {
    if (t == HM_IPV6)
      aftype = AF_INET6;
    else
      aftype = AF_INET;

    piphost = &iphost;
  }
  else
    piphost = NULL;

  if ((conf = find_conf_by_address(host, piphost, CONF_DLINE, aftype, NULL, NULL, 0)))
  {
    if (IsConfDatabase(conf))
    {
      delete_one_address_conf(host, conf);
      return 1;
    }
  }

  return 0;
}

static void
dline_remove_and_notify(struct Client *source_p, const char *host)
{
  if (dline_remove(host))
  {
    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":D-Line for [%s] is removed", host);

    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "%s has removed the D-Line for: [%s]",
                         get_oper_name(source_p), host);
    ilog(LOG_TYPE_DLINE, "%s removed D-Line for [%s]",
         get_oper_name(source_p), host);
  }
  else if (IsClient(source_p))
    sendto_one_notice(source_p, &me, ":No D-Line for [%s] found", host);
}

/*! \brief UNDLINE 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] = IP address
 *      - parv[2] = "ON"
 *      - parv[3] = target server
 */
static int
mo_undline(struct Client *source_p, int parc, char *parv[])
{
  char *addr = NULL;
  char *target_server = NULL;

  if (!HasOFlag(source_p, OPER_FLAG_UNDLINE))
  {
    sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "undline");
    return 0;
  }

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

  if (!parse_aline("UNDLINE", source_p, parc, parv, 0, &addr,
                   NULL, NULL, &target_server, NULL))
    return 0;

  if (target_server)
  {
    sendto_match_servs(source_p, target_server, CAP_UNDLN,
                       "UNDLINE %s %s", target_server, addr);

    /* Allow ON to apply local undline as well if it matches */
    if (match(target_server, me.name))
      return 0;
  }
  else
    cluster_a_line(source_p, "UNDLINE", CAP_UNDLN, SHARED_UNDLINE, "%s", addr);

  dline_remove_and_notify(source_p, addr);
  return 0;
}

/*! \brief UNDLINE 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] = target server
 *      - parv[2] = IP address
 */
static int
ms_undline(struct Client *source_p, int parc, char *parv[])
{
  const char *addr = parv[2];

  if (parc != 3 || EmptyString(parv[2]))
    return 0;

  sendto_match_servs(source_p, parv[1], CAP_UNDLN, "UNDLINE %s %s",
                     parv[1], parv[2]);

  if (match(parv[1], me.name))
    return 0;

  if (HasFlag(source_p, FLAGS_SERVICE) ||
      find_matching_name_conf(CONF_ULINE, source_p->servptr->name,
                              source_p->username, source_p->host,
                              SHARED_UNDLINE))
    dline_remove_and_notify(source_p, addr);

  return 0;
}

static struct Message undline_msgtab =
{
  "UNDLINE", NULL, 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_not_oper, ms_undline, m_ignore, mo_undline, m_ignore }
};

static void
module_init(void)
{
  mod_add_cmd(&undline_msgtab);
  add_capability("UNDLN", CAP_UNDLN);
}

static void
module_exit(void)
{
  mod_del_cmd(&undline_msgtab);
  delete_capability("UNDLN");
}

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	5864
Committed:	Tue Apr 28 12:23:30 2015 UTC (11 years, 3 months ago) by michael
Content type:	text/x-csrc
File size:	5757 byte(s)
Log Message:	- Removed useless zero initializers from the module_entry as suggested by Adam
#	User	Rev	Content
1	michael	3348	/*
2			* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3			*
4	michael	5347	* Copyright (c) 1997-2015 ircd-hybrid development team
5	michael	3348	*
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	4565	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	michael	3348	* USA
20			*/
21
22			/*! \file m_undline.c
23			* \brief Includes required functions for processing the UNDLINE command.
24	michael	3349	* \version $Id$
25	michael	3348	*/
26
27			#include "stdinc.h"
28			#include "list.h"
29			#include "client.h"
30			#include "irc_string.h"
31			#include "conf.h"
32			#include "ircd.h"
33			#include "hostmask.h"
34			#include "numeric.h"
35			#include "log.h"
36			#include "misc.h"
37			#include "send.h"
38			#include "server.h"
39			#include "parse.h"
40			#include "modules.h"
41			#include "conf_db.h"
42			#include "memory.h"
43
44
45			/* static int remove_tdline_match(const char host, const char user)
46			* Input: An ip to undline.
47			* Output: returns YES on success, NO if no tdline removed.
48			* Side effects: Any matching tdlines are removed.
49			*/
50			static int
51	michael	5833	dline_remove(const char *host)
52	michael	3348	{
53			struct irc_ssaddr iphost, *piphost;
54			struct MaskItem *conf;
55			int t = 0;
56			int aftype = 0;
57
58			if ((t = parse_netmask(host, &iphost, NULL)) != HM_HOST)
59			{
60			if (t == HM_IPV6)
61			aftype = AF_INET6;
62			else
63			aftype = AF_INET;
64	michael	4890
65	michael	3348	piphost = &iphost;
66			}
67			else
68			piphost = NULL;
69
70			if ((conf = find_conf_by_address(host, piphost, CONF_DLINE, aftype, NULL, NULL, 0)))
71			{
72			if (IsConfDatabase(conf))
73			{
74			delete_one_address_conf(host, conf);
75			return 1;
76			}
77			}
78
79			return 0;
80			}
81
82	michael	5833	static void
83			dline_remove_and_notify(struct Client source_p, const char host)
84			{
85			if (dline_remove(host))
86			{
87			if (IsClient(source_p))
88			sendto_one_notice(source_p, &me, ":D-Line for [%s] is removed", host);
89
90			sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
91			"%s has removed the D-Line for: [%s]",
92			get_oper_name(source_p), host);
93	michael	5836	ilog(LOG_TYPE_DLINE, "%s removed D-Line for [%s]",
94	michael	5833	get_oper_name(source_p), host);
95			}
96			else if (IsClient(source_p))
97			sendto_one_notice(source_p, &me, ":No D-Line for [%s] found", host);
98			}
99
100	michael	3363	/*! \brief UNDLINE command handler
101			*
102			* \param source_p Pointer to allocated Client struct from which the message
103			* originally comes from. This can be a local or remote client.
104			* \param parc Integer holding the number of supplied arguments.
105			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
106			* pointers.
107			* \note Valid arguments for this command are:
108			* - parv[0] = command
109	michael	3365	* - parv[1] = IP address
110	michael	3363	* - parv[2] = "ON"
111			* - parv[3] = target server
112			*/
113	michael	3348	static int
114			mo_undline(struct Client source_p, int parc, char parv[])
115			{
116	michael	4049	char *addr = NULL;
117	michael	3348	char *target_server = NULL;
118
119			if (!HasOFlag(source_p, OPER_FLAG_UNDLINE))
120			{
121			sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "undline");
122			return 0;
123			}
124
125			if (parc < 2 \|\| EmptyString(parv[1]))
126			{
127			sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "UNDLINE");
128			return 0;
129			}
130
131	michael	5776	if (!parse_aline("UNDLINE", source_p, parc, parv, 0, &addr,
132			NULL, NULL, &target_server, NULL))
133	michael	3348	return 0;
134
135	michael	3368	if (target_server)
136	michael	3348	{
137			sendto_match_servs(source_p, target_server, CAP_UNDLN,
138			"UNDLINE %s %s", target_server, addr);
139
140	michael	3366	/* Allow ON to apply local undline as well if it matches */
141	michael	3348	if (match(target_server, me.name))
142			return 0;
143			}
144			else
145	michael	3368	cluster_a_line(source_p, "UNDLINE", CAP_UNDLN, SHARED_UNDLINE, "%s", addr);
146	michael	3348
147	michael	5833	dline_remove_and_notify(source_p, addr);
148	michael	3348	return 0;
149			}
150
151	michael	3363	/*! \brief UNDLINE command handler
152			*
153			* \param source_p Pointer to allocated Client struct from which the message
154			* originally comes from. This can be a local or remote client.
155			* \param parc Integer holding the number of supplied arguments.
156			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
157			* pointers.
158			* \note Valid arguments for this command are:
159			* - parv[0] = command
160			* - parv[1] = target server
161	michael	3365	* - parv[2] = IP address
162	michael	3363	*/
163	michael	3348	static int
164			ms_undline(struct Client source_p, int parc, char parv[])
165			{
166	michael	4653	const char *addr = parv[2];
167	michael	3348
168			if (parc != 3 \|\| EmptyString(parv[2]))
169			return 0;
170
171	michael	3368	sendto_match_servs(source_p, parv[1], CAP_UNDLN, "UNDLINE %s %s",
172	michael	3348	parv[1], parv[2]);
173
174	michael	4639	if (match(parv[1], me.name))
175	michael	3348	return 0;
176
177			if (HasFlag(source_p, FLAGS_SERVICE) \|\|
178			find_matching_name_conf(CONF_ULINE, source_p->servptr->name,
179			source_p->username, source_p->host,
180			SHARED_UNDLINE))
181	michael	5833	dline_remove_and_notify(source_p, addr);
182	michael	4890
183	michael	3348	return 0;
184			}
185
186			static struct Message undline_msgtab =
187			{
188	michael	4545	"UNDLINE", NULL, 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
189	michael	3348	{ m_unregistered, m_not_oper, ms_undline, m_ignore, mo_undline, m_ignore }
190			};
191
192			static void
193			module_init(void)
194			{
195			mod_add_cmd(&undline_msgtab);
196	michael	5796	add_capability("UNDLN", CAP_UNDLN);
197	michael	3348	}
198
199			static void
200			module_exit(void)
201			{
202			mod_del_cmd(&undline_msgtab);
203			delete_capability("UNDLN");
204			}
205
206			struct module module_entry =
207			{
208	michael	3349	.version = "$Revision$",
209	michael	3348	.modinit = module_init,
210			.modexit = module_exit,
211			};