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 int mo_restart(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  42 static int me_restart(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  43 static int do_restart(struct Client *source_p, const char *servername);
  44
  45 struct Message restart_msgtab = {
  46         "RESTART", 0, 0, 0, 0,
  47         {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, {me_restart, 1}, {mo_restart, 0}}
  48 };
  49
  50 mapi_clist_av1 restart_clist[] = { &restart_msgtab, NULL };
  51 DECLARE_MODULE_AV1(restart, NULL, NULL, restart_clist, NULL, NULL, "$Revision: 3161 $");
  52
  53 /*
  54  * mo_restart
  55  */
  56 static int
  57 mo_restart(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  58 {
  59         char buf[BUFSIZE];
  60         rb_dlink_node *ptr;
  61         struct Client *target_p;
  62
  63         if(!IsOperDie(source_p))
  64         {
  65                 sendto_one(source_p, form_str(ERR_NOPRIVS),
  66                            me.name, source_p->name, "die");
  67                 return 0;
  68         }
  69
  70         if(parc < 2 || EmptyString(parv[1]))
  71         {
  72                 sendto_one_notice(source_p, ":Need server name /restart %s", me.name);
  73                 return 0;
  74         }
  75
  76         if(parc > 2)
  77         {
  78                 /* Remote restart. Pass it along. */
  79                 struct Client *server_p = find_server(NULL, parv[2]);
  80                 if (!server_p)
  81                 {
  82                         sendto_one_numeric(source_p, ERR_NOSUCHSERVER, form_str(ERR_NOSUCHSERVER), parv[2]);
  83                         return 0;
  84                 }
  85
  86                 if (!IsMe(server_p))
  87                 {
  88                         sendto_one(server_p, ":%s ENCAP %s RESTART %s", source_p->name, parv[2], parv[1]);
  89                         return 0;
  90                 }
  91         }
  92
  93         return do_restart(source_p, parv[1]);
  94 }
  95
  96 static int
  97 me_restart(struct MsgBuf *msgbuf_p __unused, struct Client *client_p __unused, struct Client *source_p, int parc, const char *parv[])
  98 {
  99         if(!find_shared_conf(source_p->username, source_p->host, source_p->servptr->name, SHARED_DIE))
 100         {
 101                 sendto_one_notice(source_p, ":*** You do not have an appropriate shared block to "
 102                                 "remotely restart this server.");
 103                 return 0;
 104         }
 105
 106         return do_restart(source_p, parv[1]);
 107 }
 108
 109 static int
 110 do_restart(struct Client *source_p, const char *servername)
 111 {
 112         char buf[BUFSIZE];
 113         rb_dlink_node *ptr;
 114         struct Client *target_p;
 115
 116         if(irccmp(servername, me.name))
 117         {
 118                 sendto_one_notice(source_p, ":Mismatch on /restart %s", me.name);
 119                 return 0;
 120         }
 121
 122         RB_DLINK_FOREACH(ptr, lclient_list.head)
 123         {
 124                 target_p = ptr->data;
 125
 126                 sendto_one_notice(target_p, ":Server Restarting. %s", get_client_name(source_p, HIDE_IP));
 127         }
 128
 129         RB_DLINK_FOREACH(ptr, serv_list.head)
 130         {
 131                 target_p = ptr->data;
 132
 133                 sendto_one(target_p, ":%s ERROR :Restart by %s",
 134                            me.name, get_client_name(source_p, HIDE_IP));
 135         }
 136
 137         sprintf(buf, "Server RESTART by %s", get_client_name(source_p, HIDE_IP));
 138         restart(buf);
 139
 140         return 0;
 141 }