ircd-hybrid-7.2/contrib/m_jupe.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_jupe.c: Jupes a server.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  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
 *
 *  $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "irc_string.h"
#include "sprintf_irc.h"
#include "handlers.h"
#include "channel.h"
#include "client.h"
#include "ircd.h"
#include "numeric.h"
#include "s_log.h"
#include "s_serv.h"
#include "send.h"
#include "whowas.h"
#include "hash.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "common.h"
#include "event.h"
#include "fdlist.h"
#include "s_conf.h"

static void mo_jupe(struct Client *, struct Client *, int, char *[]);
static int bogus_host(char *);

struct Message jupe_msgtab = {
  "JUPE", 0, 0, 3, 0, MFLG_SLOW, 0,
  {m_unregistered, m_not_oper, mo_jupe, m_ignore, mo_jupe, m_ignore}
};

#ifndef STATIC_MODULES
void
_modinit(void)
{
  mod_add_cmd(&jupe_msgtab);
}

void
_moddeinit(void)
{
  mod_del_cmd(&jupe_msgtab);
}

const char *_version = "$Revision$";
#endif

/*
 * mo_jupe()
 *      parv[0] = sender prefix
 *      parv[1] = server we're juping
 *      parv[2] = reason for jupe
 */
static void
mo_jupe(struct Client *client_p, struct Client *source_p,
        int parc, char *parv[])
{
  struct Client *target_p = NULL;
  struct Client *ajupe = NULL;
  dlink_node *m = NULL;
  char reason[REALLEN + 1];

  if (!IsAdmin(source_p))
  {
    sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
               me.name, source_p->name);
    return;
  }

  if (*parv[2] == '\0')
  {
    sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
               me.name, source_p->name, "JUPE");
    return;
  }

  if (!ServerInfo.hub)
  {
    sendto_one(source_p, ":%s NOTICE %s :Must be used from a hub server",
               me.name, source_p->name);
    return;
  }

  if (bogus_host(parv[1]))
  {
    sendto_one(source_p, ":%s NOTICE %s :Invalid servername: %s",
               me.name, source_p->name, parv[1]);
    return;
  }

  if (match(parv[1], me.name))
  {
    sendto_one(source_p, ":%s NOTICE %s :I can't jupe myself!",
               me.name, source_p->name);
    return;
  }

  /* we need to give 7 chars to prepend "JUPED: " */
  if (strlen(parv[2]) > (REALLEN - 7))
    parv[2][REALLEN - 7] = '\0';

  sendto_wallops_flags(UMODE_WALLOP, &me,
                       "JUPE for %s requested by %s: %s",
                       parv[1], get_oper_name(source_p), parv[2]);

  sendto_server(NULL, NULL, NOCAPS, NOCAPS,
                ":%s WALLOPS :JUPE for %s requested by %s!%s@%s: %s",
                me.name, parv[1], source_p->name, 
                source_p->username, source_p->host, parv[2]);
  ilog(L_NOTICE, "JUPE for %s requested by %s: %s",
       parv[1], get_oper_name(source_p), parv[2]);

  if ((target_p = find_server(parv[1])) != NULL)
    exit_client(target_p, &me, parv[2]);

  sendto_server(NULL, NULL, NOCAPS, NOCAPS,
                ":%s SERVER %s 1 :JUPED: %s",
                me.name, parv[1], parv[2]);

  sendto_realops_flags(UMODE_ALL, L_ALL,
                       "Link with %s established: (JUPED) link",
                       parv[1]);

  ajupe = make_client(NULL);

  /* make_client() adds client to unknown_list */
  if ((m = dlinkFindDelete(&unknown_list, ajupe)) != NULL)
    free_dlink_node(m);

  make_server(ajupe);

  strlcpy(ajupe->name, parv[1], sizeof(ajupe->name));
  ircsprintf(reason, "JUPED: %s", parv[2]);
  strlcpy(ajupe->info, reason, sizeof(ajupe->info));

  ajupe->servptr  = &me;
  ajupe->hopcount = 1;

  SetServer(ajupe);
  SetDead(ajupe);

  Count.myserver++;

  hash_add_client(ajupe);
  dlinkAdd(ajupe, &ajupe->lnode, &ajupe->servptr->serv->server_list);
  dlinkAdd(ajupe, make_dlink_node(), &global_serv_list);

  /* XXX is this really necessary? 
   * for now, 'cause of the way squit works
   */
  dlinkAdd(ajupe, &ajupe->node, &global_client_list);
}

/* bogus_host()
 *
 * inputs       - hostname
 * output       - 1 if a bogus hostname input,
 *              - 0 if its valid
 * side effects - none
 */
static int
bogus_host(char *host)
{
  unsigned int length = 0;
  unsigned int dots   = 0;
  char *s = host;

  for (; *s; s++)
  {
    if (!IsServChar(*s))  
      return 1;

    ++length;

    if ('.' == *s)
      ++dots;
  }

  return !dots || length > HOSTLEN;
}
1	/*
2	* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	* m_jupe.c: Jupes a server.
4	*
5	* Copyright (C) 2002 by the past and present ircd coders, and others.
6	*
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	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20	* USA
21	*
22	* $Id$
23	*/
24
25	#include "stdinc.h"
26	#include "list.h"
27	#include "irc_string.h"
28	#include "sprintf_irc.h"
29	#include "handlers.h"
30	#include "channel.h"
31	#include "client.h"
32	#include "ircd.h"
33	#include "numeric.h"
34	#include "s_log.h"
35	#include "s_serv.h"
36	#include "send.h"
37	#include "whowas.h"
38	#include "hash.h"
39	#include "msg.h"
40	#include "parse.h"
41	#include "modules.h"
42	#include "common.h"
43	#include "event.h"
44	#include "fdlist.h"
45	#include "s_conf.h"
46
47	static void mo_jupe(struct Client , struct Client , int, char *[]);
48	static int bogus_host(char *);
49
50	struct Message jupe_msgtab = {
51	"JUPE", 0, 0, 3, 0, MFLG_SLOW, 0,
52	{m_unregistered, m_not_oper, mo_jupe, m_ignore, mo_jupe, m_ignore}
53	};
54
55	#ifndef STATIC_MODULES
56	void
57	_modinit(void)
58	{
59	mod_add_cmd(&jupe_msgtab);
60	}
61
62	void
63	_moddeinit(void)
64	{
65	mod_del_cmd(&jupe_msgtab);
66	}
67
68	const char *_version = "$Revision$";
69	#endif
70
71	/*
72	* mo_jupe()
73	* parv[0] = sender prefix
74	* parv[1] = server we're juping
75	* parv[2] = reason for jupe
76	*/
77	static void
78	mo_jupe(struct Client client_p, struct Client source_p,
79	int parc, char *parv[])
80	{
81	struct Client *target_p = NULL;
82	struct Client *ajupe = NULL;
83	dlink_node *m = NULL;
84	char reason[REALLEN + 1];
85
86	if (!IsAdmin(source_p))
87	{
88	sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
89	me.name, source_p->name);
90	return;
91	}
92
93	if (*parv[2] == '\0')
94	{
95	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
96	me.name, source_p->name, "JUPE");
97	return;
98	}
99
100	if (!ServerInfo.hub)
101	{
102	sendto_one(source_p, ":%s NOTICE %s :Must be used from a hub server",
103	me.name, source_p->name);
104	return;
105	}
106
107	if (bogus_host(parv[1]))
108	{
109	sendto_one(source_p, ":%s NOTICE %s :Invalid servername: %s",
110	me.name, source_p->name, parv[1]);
111	return;
112	}
113
114	if (match(parv[1], me.name))
115	{
116	sendto_one(source_p, ":%s NOTICE %s :I can't jupe myself!",
117	me.name, source_p->name);
118	return;
119	}
120
121	/* we need to give 7 chars to prepend "JUPED: " */
122	if (strlen(parv[2]) > (REALLEN - 7))
123	parv[2][REALLEN - 7] = '\0';
124
125	sendto_wallops_flags(UMODE_WALLOP, &me,
126	"JUPE for %s requested by %s: %s",
127	parv[1], get_oper_name(source_p), parv[2]);
128
129	sendto_server(NULL, NULL, NOCAPS, NOCAPS,
130	":%s WALLOPS :JUPE for %s requested by %s!%s@%s: %s",
131	me.name, parv[1], source_p->name,
132	source_p->username, source_p->host, parv[2]);
133	ilog(L_NOTICE, "JUPE for %s requested by %s: %s",
134	parv[1], get_oper_name(source_p), parv[2]);
135
136	if ((target_p = find_server(parv[1])) != NULL)
137	exit_client(target_p, &me, parv[2]);
138
139	sendto_server(NULL, NULL, NOCAPS, NOCAPS,
140	":%s SERVER %s 1 :JUPED: %s",
141	me.name, parv[1], parv[2]);
142
143	sendto_realops_flags(UMODE_ALL, L_ALL,
144	"Link with %s established: (JUPED) link",
145	parv[1]);
146
147	ajupe = make_client(NULL);
148
149	/* make_client() adds client to unknown_list */
150	if ((m = dlinkFindDelete(&unknown_list, ajupe)) != NULL)
151	free_dlink_node(m);
152
153	make_server(ajupe);
154
155	strlcpy(ajupe->name, parv[1], sizeof(ajupe->name));
156	ircsprintf(reason, "JUPED: %s", parv[2]);
157	strlcpy(ajupe->info, reason, sizeof(ajupe->info));
158
159	ajupe->servptr = &me;
160	ajupe->hopcount = 1;
161
162	SetServer(ajupe);
163	SetDead(ajupe);
164
165	Count.myserver++;
166
167	hash_add_client(ajupe);
168	dlinkAdd(ajupe, &ajupe->lnode, &ajupe->servptr->serv->server_list);
169	dlinkAdd(ajupe, make_dlink_node(), &global_serv_list);
170
171	/* XXX is this really necessary?
172	* for now, 'cause of the way squit works
173	*/
174	dlinkAdd(ajupe, &ajupe->node, &global_client_list);
175	}
176
177	/* bogus_host()
178	*
179	* inputs - hostname
180	* output - 1 if a bogus hostname input,
181	* - 0 if its valid
182	* side effects - none
183	*/
184	static int
185	bogus_host(char *host)
186	{
187	unsigned int length = 0;
188	unsigned int dots = 0;
189	char *s = host;
190
191	for (; *s; s++)
192	{
193	if (!IsServChar(*s))
194	return 1;
195
196	++length;
197
198	if ('.' == *s)
199	++dots;
200	}
201
202	return !dots \|\| length > HOSTLEN;
203	}
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