modules/core/m_die.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  m_die.c: Kills off this server.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2005 ircd-ratbox development team
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  22  *  USA
  23  */
  24
  25 #include "stdinc.h"
  26 #include "client.h"
  27 #include "ircd.h"
  28 #include "match.h"
  29 #include "numeric.h"
  30 #include "logger.h"
  31 #include "s_conf.h"
  32 #include "send.h"
  33 #include "msg.h"
  34 #include "parse.h"
  35 #include "modules.h"
  36 #include "s_newconf.h"
  37 #include "hash.h"
  38
  39 static const char die_desc[] = "Provides the DIE command to allow an operator to shutdown a server";
  40
  41 static void mo_die(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  42 static void me_die(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  43 static void do_die(struct Client *, const char *);
  44
  45 static struct Message die_msgtab = {
  46         "DIE", 0, 0, 0, 0,
  47         {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, {me_die, 1}, {mo_die, 0}}
  48 };
  49
  50 mapi_clist_av1 die_clist[] = { &die_msgtab, NULL };
  51
  52 DECLARE_MODULE_AV2(die, NULL, NULL, die_clist, NULL, NULL, NULL, NULL, die_desc);
  53
  54 /*
  55  * mo_die - DIE command handler
  56  */
  57 static void
  58 mo_die(struct MsgBuf *msgbuf_p __unused, struct Client *client_p __unused, struct Client *source_p, int parc, const char *parv[])
  59 {
  60         if(!IsOperDie(source_p))
  61         {
  62                 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "die");
  63                 return;
  64         }
  65
  66         if(parc < 2 || EmptyString(parv[1]))
  67         {
  68                 sendto_one_notice(source_p, ":Need server name /die %s", me.name);
  69                 return;
  70         }
  71
  72         if(parc > 2)
  73         {
  74                 /* Remote die. Pass it along. */
  75                 struct Client *server_p = find_server(NULL, parv[2]);
  76                 if (!server_p)
  77                 {
  78                         sendto_one_numeric(source_p, ERR_NOSUCHSERVER, form_str(ERR_NOSUCHSERVER), parv[2]);
  79                         return;
  80                 }
  81
  82                 if (!IsMe(server_p))
  83                 {
  84                         sendto_one(server_p, ":%s ENCAP %s DIE %s", source_p->name, parv[2], parv[1]);
  85                         return;
  86                 }
  87         }
  88
  89         do_die(source_p, parv[1]);
  90 }
  91
  92 static void
  93 me_die(struct MsgBuf *msgbuf_p __unused, struct Client *client_p __unused, struct Client *source_p, int parc, const char *parv[])
  94 {
  95         if(!find_shared_conf(source_p->username, source_p->host, source_p->servptr->name, SHARED_DIE))
  96         {
  97                 sendto_one_notice(source_p, ":*** You do not have an appropriate shared block to "
  98                                 "remotely shut down this server.");
  99                 return;
 100         }
 101
 102         do_die(source_p, parv[1]);
 103 }
 104
 105 static void
 106 do_die(struct Client *source_p, const char *servername)
 107 {
 108         if(irccmp(servername, me.name))
 109         {
 110                 sendto_one_notice(source_p, ":Mismatch on /die %s", me.name);
 111                 return;
 112         }
 113
 114         ircd_shutdown(get_client_name(source_p, HIDE_IP));
 115 }