modules/m_map.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  m_map.c: Sends an Undernet compatible map to a user.
   4  *
   5  *  Copyright (C) 2002 by the past and present ircd coders, and others.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  20  *  USA
  21  *
  22  */
  23
  24 #include "stdinc.h"
  25 #include "client.h"
  26 #include "modules.h"
  27 #include "numeric.h"
  28 #include "send.h"
  29 #include "s_conf.h"
  30 #include "scache.h"
  31
  32 #define USER_COL       50       /* display | Users: %d at col 50 */
  33
  34 static int m_map(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  35 static int mo_map(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  36
  37 struct Message map_msgtab = {
  38         "MAP", 0, 0, 0, MFLG_SLOW,
  39         {mg_unreg, {m_map, 0}, mg_ignore, mg_ignore, mg_ignore, {mo_map, 0}}
  40 };
  41
  42 mapi_clist_av1 map_clist[] = { &map_msgtab, NULL };
  43 DECLARE_MODULE_AV1(map, NULL, NULL, map_clist, NULL, NULL, "$Revision: 3368 $");
  44
  45 static void dump_map(struct Client *client_p, struct Client *root, char *pbuf);
  46
  47 static char buf[BUFSIZE];
  48
  49 /* m_map
  50 */
  51 static int
  52 m_map(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  53 {
  54         if((!IsExemptShide(source_p) && ConfigServerHide.flatten_links) ||
  55            ConfigFileEntry.map_oper_only)
  56         {
  57                 m_not_oper(client_p, source_p, parc, parv);
  58                 return 0;
  59         }
  60
  61         dump_map(client_p, &me, buf);
  62         sendto_one_numeric(client_p, RPL_MAPEND, form_str(RPL_MAPEND));
  63         return 0;
  64 }
  65
  66 /*
  67 ** mo_map
  68 */
  69 static int
  70 mo_map(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  71 {
  72         dump_map(client_p, &me, buf);
  73         scache_send_missing(client_p);
  74         sendto_one_numeric(client_p, RPL_MAPEND, form_str(RPL_MAPEND));
  75
  76         return 0;
  77 }
  78
  79 /*
  80 ** dump_map
  81 **   dumps server map, called recursively.
  82 */
  83 static void
  84 dump_map(struct Client *client_p, struct Client *root_p, char *pbuf)
  85 {
  86         int cnt = 0, i = 0, len, frac;
  87         struct Client *server_p;
  88         rb_dlink_node *ptr;
  89         *pbuf = '\0';
  90
  91         rb_strlcat(pbuf, root_p->name, BUFSIZE);
  92         if (has_id(root_p))
  93         {
  94                 rb_strlcat(pbuf, "[", BUFSIZE);
  95                 rb_strlcat(pbuf, root_p->id, BUFSIZE);
  96                 rb_strlcat(pbuf, "]", BUFSIZE);
  97         }
  98         len = strlen(buf);
  99         buf[len] = ' ';
 100
 101         if(len < USER_COL)
 102         {
 103                 for (i = len + 1; i < USER_COL; i++)
 104                 {
 105                         buf[i] = '-';
 106                 }
 107         }
 108
 109         frac = (1000 * rb_dlink_list_length(&root_p->serv->users) + Count.total / 2) / Count.total;
 110         rb_snprintf(buf + USER_COL, BUFSIZE - USER_COL,
 111                  " | Users: %5lu (%2d.%1d%%)", rb_dlink_list_length(&root_p->serv->users),
 112                  frac / 10, frac % 10);
 113
 114         sendto_one_numeric(client_p, RPL_MAP, form_str(RPL_MAP), buf);
 115
 116         if(root_p->serv->servers.head != NULL)
 117         {
 118                 cnt += rb_dlink_list_length(&root_p->serv->servers);
 119
 120                 if(cnt)
 121                 {
 122                         if(pbuf > buf + 3)
 123                         {
 124                                 pbuf[-2] = ' ';
 125                                 if(pbuf[-3] == '`')
 126                                         pbuf[-3] = ' ';
 127                         }
 128                 }
 129         }
 130         i = 1;
 131         RB_DLINK_FOREACH(ptr, root_p->serv->servers.head)
 132         {
 133                 server_p = ptr->data;
 134                 *pbuf = ' ';
 135                 if(i < cnt)
 136                         *(pbuf + 1) = '|';
 137                 else
 138                         *(pbuf + 1) = '`';
 139
 140                 *(pbuf + 2) = '-';
 141                 *(pbuf + 3) = ' ';
 142                 dump_map(client_p, server_p, pbuf + 4);
 143
 144                 i++;
 145         }
 146 }