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: m_jupe.c,v 1.64 2005/10/01 14:29:47 michael Exp $
 */

#include "stdinc.h"
#include "tools.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 "list.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: 1.64 $";
#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, source_p, NULL, NOCAPS, NOCAPS, LL_ICLIENT,
                ":%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, NULL, NOCAPS, NOCAPS, NOFLAGS,
                ":%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->servers);
  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;
}
Revision:	30
Committed:	Sun Oct 2 20:03:27 2005 UTC (18 years, 6 months ago) by adx
Content type:	text/x-csrc
Original Path:	*ircd-hybrid/contrib/m_jupe.c*
File size:	5139 byte(s)
Log Message:	- imported sources - can be moved later according to the directory/branching scheme, but we need the svn up
#	User	Rev	Content
1	adx	30	/*
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: m_jupe.c,v 1.64 2005/10/01 14:29:47 michael Exp $
23			*/
24
25			#include "stdinc.h"
26			#include "tools.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 "list.h"
46			#include "s_conf.h"
47
48			static void mo_jupe(struct Client , struct Client , int, char *[]);
49			static int bogus_host(char *);
50
51			struct Message jupe_msgtab = {
52			"JUPE", 0, 0, 3, 0, MFLG_SLOW, 0,
53			{m_unregistered, m_not_oper, mo_jupe, m_ignore, mo_jupe, m_ignore}
54			};
55
56			#ifndef STATIC_MODULES
57			void
58			_modinit(void)
59			{
60			mod_add_cmd(&jupe_msgtab);
61			}
62
63			void
64			_moddeinit(void)
65			{
66			mod_del_cmd(&jupe_msgtab);
67			}
68
69			const char *_version = "$Revision: 1.64 $";
70			#endif
71
72			/*
73			* mo_jupe()
74			* parv[0] = sender prefix
75			* parv[1] = server we're juping
76			* parv[2] = reason for jupe
77			*/
78			static void
79			mo_jupe(struct Client client_p, struct Client source_p,
80			int parc, char *parv[])
81			{
82			struct Client *target_p = NULL;
83			struct Client *ajupe = NULL;
84			dlink_node *m = NULL;
85			char reason[REALLEN + 1];
86
87			if (!IsAdmin(source_p))
88			{
89			sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
90			me.name, source_p->name);
91			return;
92			}
93
94			if (*parv[2] == '\0')
95			{
96			sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
97			me.name, source_p->name, "JUPE");
98			return;
99			}
100
101			if (!ServerInfo.hub)
102			{
103			sendto_one(source_p, ":%s NOTICE %s :Must be used from a hub server",
104			me.name, source_p->name);
105			return;
106			}
107
108			if (bogus_host(parv[1]))
109			{
110			sendto_one(source_p, ":%s NOTICE %s :Invalid servername: %s",
111			me.name, source_p->name, parv[1]);
112			return;
113			}
114
115			if (match(parv[1], me.name))
116			{
117			sendto_one(source_p, ":%s NOTICE %s :I can't jupe myself!",
118			me.name, source_p->name);
119			return;
120			}
121
122			/* we need to give 7 chars to prepend "JUPED: " */
123			if (strlen(parv[2]) > (REALLEN - 7))
124			parv[2][REALLEN - 7] = '\0';
125
126			sendto_wallops_flags(UMODE_WALLOP, &me,
127			"JUPE for %s requested by %s: %s",
128			parv[1], get_oper_name(source_p), parv[2]);
129
130			sendto_server(NULL, source_p, NULL, NOCAPS, NOCAPS, LL_ICLIENT,
131			":%s WALLOPS :JUPE for %s requested by %s!%s@%s: %s",
132			me.name, parv[1], source_p->name,
133			source_p->username, source_p->host, parv[2]);
134			ilog(L_NOTICE, "JUPE for %s requested by %s: %s",
135			parv[1], get_oper_name(source_p), parv[2]);
136
137			if ((target_p = find_server(parv[1])) != NULL)
138			exit_client(target_p, &me, parv[2]);
139
140			sendto_server(NULL, NULL, NULL, NOCAPS, NOCAPS, NOFLAGS,
141			":%s SERVER %s 1 :JUPED: %s",
142			me.name, parv[1], parv[2]);
143
144			sendto_realops_flags(UMODE_ALL, L_ALL,
145			"Link with %s established: (JUPED) link",
146			parv[1]);
147
148			ajupe = make_client(NULL);
149
150			/* make_client() adds client to unknown_list */
151			if ((m = dlinkFindDelete(&unknown_list, ajupe)) != NULL)
152			free_dlink_node(m);
153
154			make_server(ajupe);
155
156			strlcpy(ajupe->name, parv[1], sizeof(ajupe->name));
157			ircsprintf(reason, "JUPED: %s", parv[2]);
158			strlcpy(ajupe->info, reason, sizeof(ajupe->info));
159
160			ajupe->servptr = &me;
161			ajupe->hopcount = 1;
162
163			SetServer(ajupe);
164			SetDead(ajupe);
165
166			Count.myserver++;
167
168			hash_add_client(ajupe);
169			dlinkAdd(ajupe, &ajupe->lnode, &ajupe->servptr->serv->servers);
170			dlinkAdd(ajupe, make_dlink_node(), &global_serv_list);
171
172			/* XXX is this really necessary?
173			* for now, 'cause of the way squit works
174			*/
175			dlinkAdd(ajupe, &ajupe->node, &global_client_list);
176			}
177
178			/* bogus_host()
179			*
180			* inputs - hostname
181			* output - 1 if a bogus hostname input,
182			* - 0 if its valid
183			* side effects - none
184			*/
185			static int
186			bogus_host(char *host)
187			{
188			unsigned int length = 0;
189			unsigned int dots = 0;
190			char *s = host;
191
192			for (; *s; s++)
193			{
194			if (!IsServChar(*s))
195			return 1;
196
197			++length;
198
199			if ('.' == *s)
200			++dots;
201			}
202
203			return !dots \|\| length > HOSTLEN;
204			}