modules/m_restart.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  m_restart.c: Exits and re-runs ircd.
   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 "common.h"
  28 #include "match.h"
  29 #include "ircd.h"
  30 #include "numeric.h"
  31 #include "s_conf.h"
  32 #include "s_newconf.h"
  33 #include "restart.h"
  34 #include "logger.h"
  35 #include "send.h"
  36 #include "msg.h"
  37 #include "parse.h"
  38 #include "modules.h"
  39 #include "hash.h"
  40
  41 static const char restart_desc[] = "Provides the RESTART command to restart the server";
  42
  43 static void mo_restart(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  44 static void me_restart(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  45 static void do_restart(struct Client *source_p, const char *servername);
  46
  47 struct Message restart_msgtab = {
  48         "RESTART", 0, 0, 0, 0,
  49         {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, {me_restart, 1}, {mo_restart, 0}}
  50 };
  51
  52 mapi_clist_av1 restart_clist[] = { &restart_msgtab, NULL };
  53
  54 DECLARE_MODULE_AV2(restart, NULL, NULL, restart_clist, NULL, NULL, NULL, NULL, restart_desc);
  55
  56 /*
  57  * mo_restart
  58  */
  59 static void
  60 mo_restart(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  61 {
  62         if(!IsOperDie(source_p))
  63         {
  64                 sendto_one(source_p, form_str(ERR_NOPRIVS),
  65                            me.name, source_p->name, "die");
  66                 return;
  67         }
  68
  69         if(parc < 2 || EmptyString(parv[1]))
  70         {
  71                 sendto_one_notice(source_p, ":Need server name /restart %s", me.name);
  72                 return;
  73         }
  74
  75         if(parc > 2)
  76         {
  77                 /* Remote restart. Pass it along. */
  78                 struct Client *server_p = find_server(NULL, parv[2]);
  79                 if (!server_p)
  80                 {
  81                         sendto_one_numeric(source_p, ERR_NOSUCHSERVER, form_str(ERR_NOSUCHSERVER), parv[2]);
  82                         return;
  83                 }
  84
  85                 if (!IsMe(server_p))
  86                 {
  87                         sendto_one(server_p, ":%s ENCAP %s RESTART %s", source_p->name, parv[2], parv[1]);
  88                         return;
  89                 }
  90         }
  91
  92         do_restart(source_p, parv[1]);
  93 }
  94
  95 static void
  96 me_restart(struct MsgBuf *msgbuf_p __unused, struct Client *client_p __unused, struct Client *source_p, int parc, const char *parv[])
  97 {
  98         if(!find_shared_conf(source_p->username, source_p->host, source_p->servptr->name, SHARED_DIE))
  99         {
 100                 sendto_one_notice(source_p, ":*** You do not have an appropriate shared block to "
 101                                 "remotely restart this server.");
 102                 return;
 103         }
 104
 105         do_restart(source_p, parv[1]);
 106 }
 107
 108 static void
 109 do_restart(struct Client *source_p, const char *servername)
 110 {
 111         char buf[BUFSIZE];
 112         rb_dlink_node *ptr;
 113         struct Client *target_p;
 114
 115         if(irccmp(servername, me.name))
 116         {
 117                 sendto_one_notice(source_p, ":Mismatch on /restart %s", me.name);
 118                 return;
 119         }
 120
 121         RB_DLINK_FOREACH(ptr, lclient_list.head)
 122         {
 123                 target_p = ptr->data;
 124
 125                 sendto_one_notice(target_p, ":Server Restarting. %s", get_client_name(source_p, HIDE_IP));
 126         }
 127
 128         RB_DLINK_FOREACH(ptr, serv_list.head)
 129         {
 130                 target_p = ptr->data;
 131
 132                 sendto_one(target_p, ":%s ERROR :Restart by %s",
 133                            me.name, get_client_name(source_p, HIDE_IP));
 134         }
 135
 136         sprintf(buf, "Server RESTART by %s", get_client_name(source_p, HIDE_IP));
 137         restart(buf);
 138 }