modules/core/m_die.c

   1 /* {{{ irc-seven: Cows like it.
   2  *
   3  * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   4  * Copyright (C) 1996-2002 Hybrid Development Team
   5  * Copyright (C) 2002-2005 ircd-ratbox development team
   6  * Copyright (c) 2006 Elfyn McBratney.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to:
  20  *
  21  *      Free Software Foundation, Inc.
  22  *      51 Franklin St - Fifth Floor
  23  *      Boston, MA 02110-1301
  24  *      USA
  25  *
  26  * }}} */
  27
  28 /* {{{ Includes. */
  29 #include "stdinc.h"
  30 #include "tools.h"
  31 #include "client.h"
  32 #include "ircd.h"
  33 #include "irc_string.h"
  34 #include "numeric.h"
  35 #include "commio.h"
  36 #include "s_log.h"
  37 #include "s_conf.h"
  38 #include "s_newconf.h"
  39 #include "s_serv.h"
  40 #include "send.h"
  41 #include "msg.h"
  42 #include "parse.h"
  43 #include "modules.h"
  44 #include "hash.h"
  45 /* }}} */
  46
  47 static int mo_die (struct Client *, struct Client *, int, const char **);
  48 static int me_die (struct Client *, struct Client *, int, const char **);
  49
  50 static int do_die (struct Client *, const char *, uint8_t);
  51
  52 /* {{{ static struct Message die_msgtab = { ... } */
  53 static struct Message die_msgtab =
  54 {
  55         "DIE", 0, 0, 0, MFLG_SLOW,
  56         {
  57                 mg_unreg, mg_not_oper, mg_ignore,
  58                 mg_ignore, {me_die, 0}, {mo_die, 0},
  59         },
  60 };
  61 /* }}} */
  62
  63 mapi_clist_av1 die_clist[] =
  64 {
  65         &die_msgtab,
  66         NULL,
  67 };
  68
  69 /* {{{ DECLARE_MODULE_AV1(...) */
  70 DECLARE_MODULE_AV1
  71 (
  72         die,
  73         NULL,
  74         NULL,
  75         die_clist,
  76         NULL,
  77         NULL,
  78         "$Revision: 195 $"
  79 );
  80 /* }}} */
  81
  82 /* {{{ mo_die()
  83  *
  84  * DIE message handler.
  85  *
  86  * Usage:
  87  *      DIE <server>
  88  *
  89  * parv[0] - prefix
  90  * parv[1] - server
  91  */
  92 static int
  93 mo_die (struct Client *client_p, struct Client *source_p, int parc, const char **parv)
  94 {
  95         uint8_t is_me;
  96
  97         if (!IsOperDie(source_p))
  98         {
  99                 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name,
 100                         source_p->name, "die");
 101                 return 0;
 102         }
 103         else if (parc < 2 || EmptyString(parv[1]))
 104         {
 105                 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), me.name,
 106                         source_p->name, "DIE");
 107                 return 0;
 108         }
 109         else if (strchr(parv[1], '?') || strchr(parv[1], '*'))
 110         {
 111                 sendto_one(source_p,
 112                         ":%s NOTICE %s :Argument to DIE cannot contain wildcards",
 113                         me.name, source_p->name);
 114                 return 0;
 115         }
 116         else if (!find_server(source_p, parv[1]))
 117         {
 118                 sendto_one_numeric(source_p, ERR_NOSUCHSERVER,
 119                         form_str(ERR_NOSUCHSERVER), parv[1]);
 120                 return 0;
 121         }
 122
 123         is_me = irccmp(parv[1], me.name) == 0 ? 1 : 0;
 124         if (!is_me && !ConfigFileEntry.remote_die)
 125         {
 126                 sendto_one(source_p,
 127                         ":%s NOTICE %s :Argument to DIE must local server name (%s)",
 128                         me.name, source_p->name, me.name);
 129                 return 0;
 130         }
 131
 132         return do_die(source_p, parv[1], !is_me);
 133 }
 134 /* }}} */
 135
 136 /* {{{ me_die()
 137  *
 138  * DIE ENCAP message handler.
 139  *
 140  * parv[0] - prefix
 141  */
 142 static int
 143 me_die (struct Client *client_p, struct Client *source_p, int parc, const char **parv)
 144 {
 145         if (!IsPerson(source_p) || !ConfigFileEntry.remote_die)
 146                 return 0;
 147         if (!find_client_shared_conf(source_p, SHARED_DIE))
 148                 return 0;
 149
 150         return do_die(source_p, NULL, 0);
 151 }
 152 /* }}} */
 153
 154 /* {{{ do_die()
 155  *
 156  * Restart local server or request that a remote server restart.
 157  */
 158 static int
 159 do_die (struct Client *source_p, const char *target, uint8_t remote)
 160 {
 161         dlink_node      *cur = NULL;
 162         struct Client   *target_p = NULL;
 163
 164         if (remote)
 165         {
 166                 sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
 167                         "%s is requesting shutdown of %s",
 168                         get_oper_name(source_p), target);
 169                 sendto_match_servs(source_p, target, CAP_ENCAP, NOCAPS,
 170                         "ENCAP %s DIE", target);
 171
 172                 return 0;
 173         }
 174
 175         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "%s is shutting down %s...",
 176                         get_oper_name(source_p), me.name);
 177
 178         DLINK_FOREACH (cur, lclient_list.head)
 179         {
 180                 target_p = cur->data;
 181                 sendto_one(target_p,
 182                         ":%s NOTICE %s :Server Terminating.",
 183                         me.name, target_p->name);
 184         }
 185
 186         DLINK_FOREACH (cur, serv_list.head)
 187         {
 188                 target_p = cur->data;
 189                 sendto_one(target_p, ":%s ERROR :Terminated by %s",
 190                         me.name, get_client_name(source_p, HIDE_IP));
 191         }
 192
 193         ilog(L_MAIN, "Server terminated by %s", get_oper_name(source_p));
 194         unlink(pidFileName);
 195         exit(0);
 196
 197         /* not reached. */
 198         return 0;
 199 }
 200 /* }}} */
 201
 202 /*
 203  * vim: ts=8 sw=8 noet fdm=marker tw=80
 204  */