modules/m_whowas.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  m_whois.c: Shows who a user was.
   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 "whowas.h"
  27 #include "client.h"
  28 #include "common.h"
  29 #include "hash.h"
  30 #include "irc_string.h"
  31 #include "ircd.h"
  32 #include "ircd_defs.h"
  33 #include "numeric.h"
  34 #include "s_serv.h"
  35 #include "s_user.h"
  36 #include "send.h"
  37 #include "s_conf.h"
  38 #include "msg.h"
  39 #include "parse.h"
  40 #include "modules.h"
  41
  42 static int m_whowas(struct Client *, struct Client *, int, const char **);
  43
  44 struct Message whowas_msgtab = {
  45         "WHOWAS", 0, 0, 0, MFLG_SLOW,
  46         {mg_unreg, {m_whowas, 2}, mg_ignore, mg_ignore, mg_ignore, {m_whowas, 2}}
  47 };
  48
  49 mapi_clist_av1 whowas_clist[] = { &whowas_msgtab, NULL };
  50 DECLARE_MODULE_AV1(whowas, NULL, NULL, whowas_clist, NULL, NULL, "$Revision: 26 $");
  51
  52 /*
  53 ** m_whowas
  54 **      parv[0] = sender prefix
  55 **      parv[1] = nickname queried
  56 */
  57 static int
  58 m_whowas(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  59 {
  60         struct Whowas *temp;
  61         int cur = 0;
  62         int max = -1, found = 0;
  63         char *p;
  64         const char *nick;
  65
  66         static time_t last_used = 0L;
  67
  68         if(!IsOper(source_p))
  69         {
  70                 if((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime)
  71                 {
  72                         sendto_one(source_p, form_str(RPL_LOAD2HI),
  73                                    me.name, source_p->name, "WHOWAS");
  74                         sendto_one(source_p, form_str(RPL_ENDOFWHOWAS),
  75                                    me.name, source_p->name, parv[1]);
  76                         return 0;
  77                 }
  78                 else
  79                         last_used = CurrentTime;
  80         }
  81
  82
  83         if(parc > 2)
  84                 max = atoi(parv[2]);
  85
  86 #if 0
  87         if(parc > 3)
  88                 if(hunt_server(client_p, source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv))
  89                         return 0;
  90 #endif
  91
  92         if((p = strchr(parv[1], ',')))
  93                 *p = '\0';
  94
  95         nick = parv[1];
  96
  97         temp = WHOWASHASH[hash_whowas_name(nick)];
  98         found = 0;
  99         for (; temp; temp = temp->next)
 100         {
 101                 if(!irccmp(nick, temp->name))
 102                 {
 103                         sendto_one(source_p, form_str(RPL_WHOWASUSER),
 104                                    me.name, source_p->name, temp->name,
 105                                    temp->username, temp->hostname, temp->realname);
 106                         if (MyOper(source_p) && !EmptyString(temp->sockhost))
 107 #if 0
 108                                 sendto_one(source_p, form_str(RPL_WHOWASREAL),
 109                                            me.name, source_p->name, temp->name,
 110                                            "<untracked>", temp->sockhost);
 111 #else
 112                                 sendto_one_numeric(source_p, RPL_WHOISACTUALLY,
 113                                                    form_str(RPL_WHOISACTUALLY),
 114                                                    temp->name, temp->sockhost);
 115 #endif
 116                         sendto_one_numeric(source_p, RPL_WHOISSERVER,
 117                                            form_str(RPL_WHOISSERVER),
 118                                            temp->name, temp->servername,
 119                                            myctime(temp->logoff));
 120                         cur++;
 121                         found++;
 122                 }
 123                 if(max > 0 && cur >= max)
 124                         break;
 125         }
 126
 127         if(!found)
 128                 sendto_one(source_p, form_str(ERR_WASNOSUCHNICK),
 129                            me.name, source_p->name, nick);
 130
 131         sendto_one(source_p, form_str(RPL_ENDOFWHOWAS),
 132                    me.name, source_p->name, parv[1]);
 133         return 0;
 134 }