8.2.0beta2/modules/m_module.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 2000-2014 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_module.c
 * \brief Includes required functions for processing the MODULE command.
 * \version $Id$
 */

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


/*! \brief MODULE 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] = action [LOAD, UNLOAD, RELOAD, LIST]
 *      - parv[2] = module name
 */
static int
mo_module(struct Client *source_p, int parc, char *parv[])
{
  const char *m_bn = NULL;
  struct module *modp = NULL;
  int check_core;

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

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

  if (!irccmp(parv[1], "LOAD"))
  {
    if (EmptyString(parv[2]))
    {
      sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "MODULE");
      return 0;
    }

    if (findmodule_byname((m_bn = libio_basename(parv[2]))))
    {
      sendto_one_notice(source_p, &me, ":Module %s is already loaded", m_bn);
      return 0;
    }

    load_one_module(parv[2]);
    return 0;
  }

  if (!irccmp(parv[1], "UNLOAD"))
  {
    if (EmptyString(parv[2]))
    {
      sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "MODULE");
      return 0;
    }

    if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
    {
      sendto_one_notice(source_p, &me, ":Module %s is not loaded", m_bn);
      return 0;
    }

    if (modp->flags & MODULE_FLAG_CORE)
    {
      sendto_one_notice(source_p, &me, ":Module %s is a core module and may not be unloaded",
                        m_bn);
      return 0;
    }

    if (modp->flags & MODULE_FLAG_NOUNLOAD)
    {
      sendto_one_notice(source_p, &me, ":Module %s is a resident module and may not be unloaded",
                        m_bn);
      return 0;
    }

    if (unload_one_module(m_bn, 1) == -1)
      sendto_one_notice(source_p, &me, ":Module %s is not loaded", m_bn);
    return 0;
  }

  if (!irccmp(parv[1], "RELOAD"))
  {
    if (EmptyString(parv[2]))
    {
      sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "MODULE");
      return 0;
    }

    if (!strcmp(parv[2], "*"))
    {
      unsigned int modnum = 0;
      dlink_node *ptr = NULL, *ptr_next = NULL;

      sendto_one_notice(source_p, &me, ":Reloading all modules");

      modnum = dlink_list_length(modules_get_list());

      DLINK_FOREACH_SAFE(ptr, ptr_next, modules_get_list()->head)
      {
        modp = ptr->data;

        if (!(modp->flags & MODULE_FLAG_NOUNLOAD))
          unload_one_module(modp->name, 0);
      }

      load_all_modules(0);
      load_conf_modules();
      load_core_modules(0);

      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                           "Module Restart: %u modules unloaded, %u modules loaded",
                           modnum, dlink_list_length(modules_get_list()));
      ilog(LOG_TYPE_IRCD, "Module Restart: %u modules unloaded, %u modules loaded",
           modnum, dlink_list_length(modules_get_list()));
      return 0;
    }

    if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
    {
      sendto_one_notice(source_p, &me, ":Module %s is not loaded", m_bn);
      return 0;
    }

    if (modp->flags & MODULE_FLAG_NOUNLOAD)
    {
      sendto_one_notice(source_p, &me, ":Module %s is a resident module and may not be unloaded",
                        m_bn);
      return 0;
    }

    check_core = (modp->flags & MODULE_FLAG_CORE) != 0;

    if (unload_one_module(m_bn, 1) == -1)
    {
      sendto_one_notice(source_p, &me, ":Module %s is not loaded", m_bn);
      return 0;
    }

    if ((load_one_module(parv[2]) == -1) && check_core)
    {
      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                           "Error reloading core "
                           "module: %s: terminating ircd", parv[2]);
      ilog(LOG_TYPE_IRCD, "Error loading core module %s: terminating ircd", parv[2]);
      exit(0);
    }

    return 0;
  }

  if (!irccmp(parv[1], "LIST"))
  {
    const dlink_node *ptr = NULL;

    DLINK_FOREACH(ptr, modules_get_list()->head)
    {
      modp = ptr->data;

      if (!EmptyString(parv[2]) && match(parv[2], modp->name))
        continue;

      sendto_one_numeric(source_p, &me, RPL_MODLIST,
                         modp->name, modp->handle,
                         modp->version, (modp->flags & MODULE_FLAG_CORE) ? "(core)" : "");
    }

    sendto_one_numeric(source_p, &me, RPL_ENDOFMODLIST);
    return 0;
  }

  sendto_one_notice(source_p, &me, ":%s is not a valid option. "
                    "Choose from LOAD, UNLOAD, RELOAD, LIST",
                    parv[1]);
  return 0;
}

static struct Message module_msgtab =
{
  "MODULE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_not_oper, m_ignore, m_ignore, mo_module, m_ignore }
};

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

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

struct module module_entry =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = MODULE_FLAG_NOUNLOAD
};
Revision:	3320
Committed:	Tue Apr 15 15:58:33 2014 UTC (12 years, 3 months ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid/trunk/modules/m_module.c*
File size:	6633 byte(s)
Log Message:	- Removed useless header includes
#	User	Rev	Content
1	michael	1447	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	michael	1447	*
4	michael	2820	* Copyright (c) 2000-2014 ircd-hybrid development team
5	michael	1447	*
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			/*! \file m_module.c
23			* \brief Includes required functions for processing the MODULE command.
24			* \version $Id$
25			*/
26
27			#include "stdinc.h"
28			#include "list.h"
29			#include "client.h"
30			#include "irc_string.h"
31			#include "ircd.h"
32			#include "numeric.h"
33			#include "conf.h"
34			#include "log.h"
35			#include "send.h"
36			#include "parse.h"
37			#include "modules.h"
38
39
40	michael	3300	/*! \brief MODULE command handler
41	michael	1447	*
42			* \param source_p Pointer to allocated Client struct from which the message
43			* originally comes from. This can be a local or remote client.
44			* \param parc Integer holding the number of supplied arguments.
45			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
46			* pointers.
47			* \note Valid arguments for this command are:
48	michael	3096	* - parv[0] = command
49	michael	1447	* - parv[1] = action [LOAD, UNLOAD, RELOAD, LIST]
50			* - parv[2] = module name
51			*/
52	michael	2820	static int
53	michael	3156	mo_module(struct Client source_p, int parc, char parv[])
54	michael	1447	{
55			const char *m_bn = NULL;
56			struct module *modp = NULL;
57			int check_core;
58
59			if (!HasOFlag(source_p, OPER_FLAG_MODULE))
60			{
61	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "module");
62	michael	2820	return 0;
63	michael	1447	}
64
65			if (EmptyString(parv[1]))
66			{
67	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "MODULE");
68	michael	2820	return 0;
69	michael	1447	}
70
71			if (!irccmp(parv[1], "LOAD"))
72			{
73	michael	1448	if (EmptyString(parv[2]))
74			{
75	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "MODULE");
76	michael	2820	return 0;
77	michael	1448	}
78
79	michael	2820	if (findmodule_byname((m_bn = libio_basename(parv[2]))))
80	michael	1447	{
81	michael	3110	sendto_one_notice(source_p, &me, ":Module %s is already loaded", m_bn);
82	michael	2820	return 0;
83	michael	1447	}
84
85			load_one_module(parv[2]);
86	michael	2820	return 0;
87	michael	1447	}
88
89			if (!irccmp(parv[1], "UNLOAD"))
90			{
91	michael	1448	if (EmptyString(parv[2]))
92			{
93	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "MODULE");
94	michael	2820	return 0;
95	michael	1448	}
96
97	michael	1447	if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
98			{
99	michael	3110	sendto_one_notice(source_p, &me, ":Module %s is not loaded", m_bn);
100	michael	2820	return 0;
101	michael	1447	}
102
103			if (modp->flags & MODULE_FLAG_CORE)
104			{
105	michael	3110	sendto_one_notice(source_p, &me, ":Module %s is a core module and may not be unloaded",
106			m_bn);
107	michael	2820	return 0;
108	michael	1447	}
109
110	michael	1448	if (modp->flags & MODULE_FLAG_NOUNLOAD)
111			{
112	michael	3110	sendto_one_notice(source_p, &me, ":Module %s is a resident module and may not be unloaded",
113			m_bn);
114	michael	2820	return 0;
115	michael	1448	}
116
117	michael	1447	if (unload_one_module(m_bn, 1) == -1)
118	michael	3110	sendto_one_notice(source_p, &me, ":Module %s is not loaded", m_bn);
119	michael	2820	return 0;
120	michael	1447	}
121
122			if (!irccmp(parv[1], "RELOAD"))
123			{
124	michael	1448	if (EmptyString(parv[2]))
125			{
126	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "MODULE");
127	michael	2820	return 0;
128	michael	1448	}
129
130	michael	1447	if (!strcmp(parv[2], "*"))
131			{
132			unsigned int modnum = 0;
133			dlink_node ptr = NULL, ptr_next = NULL;
134
135	michael	3110	sendto_one_notice(source_p, &me, ":Reloading all modules");
136	michael	1447
137	michael	2959	modnum = dlink_list_length(modules_get_list());
138	michael	1447
139	michael	2959	DLINK_FOREACH_SAFE(ptr, ptr_next, modules_get_list()->head)
140	michael	1447	{
141			modp = ptr->data;
142	michael	1448
143			if (!(modp->flags & MODULE_FLAG_NOUNLOAD))
144			unload_one_module(modp->name, 0);
145	michael	1447	}
146
147			load_all_modules(0);
148			load_conf_modules();
149			load_core_modules(0);
150
151	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
152	michael	1447	"Module Restart: %u modules unloaded, %u modules loaded",
153	michael	2959	modnum, dlink_list_length(modules_get_list()));
154	michael	1447	ilog(LOG_TYPE_IRCD, "Module Restart: %u modules unloaded, %u modules loaded",
155	michael	2959	modnum, dlink_list_length(modules_get_list()));
156	michael	2820	return 0;
157	michael	1447	}
158
159			if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
160			{
161	michael	3110	sendto_one_notice(source_p, &me, ":Module %s is not loaded", m_bn);
162	michael	2820	return 0;
163	michael	1447	}
164
165	michael	1448	if (modp->flags & MODULE_FLAG_NOUNLOAD)
166			{
167	michael	3110	sendto_one_notice(source_p, &me, ":Module %s is a resident module and may not be unloaded",
168			m_bn);
169	michael	2820	return 0;
170	michael	1448	}
171
172	michael	1447	check_core = (modp->flags & MODULE_FLAG_CORE) != 0;
173
174			if (unload_one_module(m_bn, 1) == -1)
175			{
176	michael	3110	sendto_one_notice(source_p, &me, ":Module %s is not loaded", m_bn);
177	michael	2820	return 0;
178	michael	1447	}
179
180			if ((load_one_module(parv[2]) == -1) && check_core)
181			{
182	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
183			"Error reloading core "
184	michael	1447	"module: %s: terminating ircd", parv[2]);
185			ilog(LOG_TYPE_IRCD, "Error loading core module %s: terminating ircd", parv[2]);
186			exit(0);
187			}
188
189	michael	2820	return 0;
190	michael	1447	}
191
192			if (!irccmp(parv[1], "LIST"))
193			{
194			const dlink_node *ptr = NULL;
195
196	michael	2959	DLINK_FOREACH(ptr, modules_get_list()->head)
197	michael	1447	{
198	michael	1448	modp = ptr->data;
199
200	michael	1653	if (!EmptyString(parv[2]) && match(parv[2], modp->name))
201	michael	1447	continue;
202
203	michael	3109	sendto_one_numeric(source_p, &me, RPL_MODLIST,
204	michael	3301	modp->name, modp->handle,
205			modp->version, (modp->flags & MODULE_FLAG_CORE) ? "(core)" : "");
206	michael	1447	}
207
208	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFMODLIST);
209	michael	2820	return 0;
210	michael	1447	}
211	michael	1566
212	michael	3110	sendto_one_notice(source_p, &me, ":%s is not a valid option. "
213			"Choose from LOAD, UNLOAD, RELOAD, LIST",
214			parv[1]);
215	michael	2820	return 0;
216	michael	1447	}
217
218	michael	2820	static struct Message module_msgtab =
219			{
220			"MODULE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
221			{ m_unregistered, m_not_oper, m_ignore, m_ignore, mo_module, m_ignore }
222	michael	1447	};
223
224			static void
225			module_init(void)
226			{
227			mod_add_cmd(&module_msgtab);
228			}
229
230			static void
231			module_exit(void)
232			{
233			mod_del_cmd(&module_msgtab);
234			}
235
236	michael	2820	struct module module_entry =
237			{
238	michael	1447	.node = { NULL, NULL, NULL },
239			.name = NULL,
240			.version = "$Revision$",
241			.handle = NULL,
242			.modinit = module_init,
243			.modexit = module_exit,
244	michael	1448	.flags = MODULE_FLAG_NOUNLOAD
245	michael	1447	};