extensions/m_findforwards.c

   1 /*
   2  *   IRC - Internet Relay Chat, contrib/m_findforwards.c
   3  *   Copyright (C) 2002 Hybrid Development Team
   4  *   Copyright (C) 2004 ircd-ratbox Development Team
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 1, or (at your option)
   9  *   any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  *
  20  *   $Id: m_findforwards.c 986 2006-03-08 00:10:46Z jilles $
  21  */
  22 #include "stdinc.h"
  23 #include "channel.h"
  24 #include "client.h"
  25 #include "hash.h"
  26 #include "match.h"
  27 #include "ircd.h"
  28 #include "numeric.h"
  29 #include "s_user.h"
  30 #include "s_conf.h"
  31 #include "s_newconf.h"
  32 #include "send.h"
  33 #include "msg.h"
  34 #include "parse.h"
  35 #include "modules.h"
  36 #include "packet.h"
  37
  38 static int m_findforwards(struct Client *client_p, struct Client *source_p,
  39                         int parc, const char *parv[]);
  40
  41 struct Message findforwards_msgtab = {
  42         "FINDFORWARDS", 0, 0, 0, MFLG_SLOW,
  43         {mg_unreg, {m_findforwards, 2}, mg_ignore, mg_ignore, mg_ignore, {m_findforwards, 2}}
  44 };
  45
  46 mapi_clist_av1 findforwards_clist[] = { &findforwards_msgtab, NULL };
  47
  48 DECLARE_MODULE_AV1(findforwards, NULL, NULL, findforwards_clist, NULL, NULL, "$Revision: 986 $");
  49
  50 /*
  51 ** mo_findforwards
  52 **      parv[1] = channel
  53 */
  54 static int
  55 m_findforwards(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  56 {
  57         static time_t last_used = 0;
  58         struct Channel *chptr;
  59         struct membership *msptr;
  60         rb_dlink_node *ptr;
  61         char buf[414];
  62         char *p = buf, *end = buf + sizeof buf - 1;
  63         *p = '\0';
  64
  65         /* Allow ircops to search for forwards to nonexistent channels */
  66         if(!IsOper(source_p))
  67         {
  68                 if((chptr = find_channel(parv[1])) == NULL || (msptr = find_channel_membership(chptr, source_p)) == NULL)
  69                 {
  70                         sendto_one_numeric(source_p, ERR_NOTONCHANNEL,
  71                                         form_str(ERR_NOTONCHANNEL), parv[1]);
  72                         return 0;
  73                 }
  74
  75                 if(!is_any_op(msptr))
  76                 {
  77                         sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
  78                                         me.name, source_p->name, parv[1]);
  79                         return 0;
  80                 }
  81
  82                 if((last_used + ConfigFileEntry.pace_wait) > rb_current_time())
  83                 {
  84                         sendto_one(source_p, form_str(RPL_LOAD2HI),
  85                                         me.name, source_p->name, "FINDFORWARDS");
  86                         return 0;
  87                 }
  88                 else
  89                         last_used = rb_current_time();
  90         }
  91
  92         RB_DLINK_FOREACH(ptr, global_channel_list.head)
  93         {
  94                 chptr = ptr->data;
  95                 if(chptr->mode.forward && !irccmp(chptr->mode.forward, parv[1]))
  96                 {
  97                         if(p + strlen(chptr->chname) >= end - 13)
  98                         {
  99                                 strcpy(p, "<truncated> ");
 100                                 p += 12;
 101                                 break;
 102                         }
 103                         strcpy(p, chptr->chname);
 104                         p += strlen(chptr->chname);
 105                         *p++ = ' ';
 106                 }
 107         }
 108
 109         if(buf[0])
 110                 *(--p) = '\0';
 111
 112         sendto_one_notice(source_p, ":Forwards for %s: %s", parv[1], buf);
 113
 114         return 0;
 115 }