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 #include "stdinc.h"
  24 #include "client.h"
  25 #include "modules.h"
  26 #include "numeric.h"
  27 #include "send.h"
  28 #include "s_conf.h"
  29 #include "sprintf_irc.h"
  30
  31 #define USER_COL       50       /* display | Users: %d at col 50 */
  32
  33 static int m_map(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  34 static int mo_map(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  35
  36 struct Message map_msgtab = {
  37         "MAP", 0, 0, 0, MFLG_SLOW,
  38         {mg_unreg, {m_map, 0}, mg_ignore, mg_ignore, mg_ignore, {mo_map, 0}}
  39 };
  40
  41 mapi_clist_av1 map_clist[] = { &map_msgtab, NULL };
  42 DECLARE_MODULE_AV1(map, NULL, NULL, map_clist, NULL, NULL, "$Revision: 122 $");
  43
  44 static void dump_map(struct Client *client_p, struct Client *root, char *pbuf);
  45
  46 static char buf[BUFSIZE];
  47
  48 /* m_map
  49 **      parv[0] = sender prefix
  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(client_p, form_str(RPL_MAPEND), me.name, client_p->name);
  63         return 0;
  64 }
  65
  66 /*
  67 ** mo_map
  68 **      parv[0] = sender prefix
  69 */
  70 static int
  71 mo_map(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  72 {
  73         if(!IsOperRouting(source_p))
  74         {
  75                 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name,
  76                                 "routing");
  77                 return 0;
  78         }
  79
  80         dump_map(client_p, &me, buf);
  81         sendto_one(client_p, form_str(RPL_MAPEND), me.name, client_p->name);
  82
  83         return 0;
  84 }
  85
  86 /*
  87 ** dump_map
  88 **   dumps server map, called recursively.
  89 */
  90 static void
  91 dump_map(struct Client *client_p, struct Client *root_p, char *pbuf)
  92 {
  93         int cnt = 0, i = 0, len;
  94         struct Client *server_p;
  95         dlink_node *ptr;
  96         *pbuf = '\0';
  97
  98         strlcat(pbuf, root_p->name, BUFSIZE);
  99         if (has_id(root_p))
 100         {
 101                 strlcat(pbuf, "[", BUFSIZE);
 102                 strlcat(pbuf, root_p->id, BUFSIZE);
 103                 strlcat(pbuf, "]", BUFSIZE);
 104         }
 105         len = strlen(buf);
 106         buf[len] = ' ';
 107
 108         if(len < USER_COL)
 109         {
 110                 for (i = len + 1; i < USER_COL; i++)
 111                 {
 112                         buf[i] = '-';
 113                 }
 114         }
 115
 116         ircsnprintf(buf + USER_COL, BUFSIZE - USER_COL,
 117                  " | Users: %5lu (%4.1f%%)", dlink_list_length(&root_p->serv->users),
 118                  100 * (float) dlink_list_length(&root_p->serv->users) / (float) Count.total);
 119
 120         sendto_one(client_p, form_str(RPL_MAP), me.name, client_p->name, buf);
 121
 122         if(root_p->serv->servers.head != NULL)
 123         {
 124                 cnt += dlink_list_length(&root_p->serv->servers);
 125
 126                 if(cnt)
 127                 {
 128                         if(pbuf > buf + 3)
 129                         {
 130                                 pbuf[-2] = ' ';
 131                                 if(pbuf[-3] == '`')
 132                                         pbuf[-3] = ' ';
 133                         }
 134                 }
 135         }
 136         i = 1;
 137         DLINK_FOREACH(ptr, root_p->serv->servers.head)
 138         {
 139                 server_p = ptr->data;
 140                 *pbuf = ' ';
 141                 if(i < cnt)
 142                         *(pbuf + 1) = '|';
 143                 else
 144                         *(pbuf + 1) = '`';
 145
 146                 *(pbuf + 2) = '-';
 147                 *(pbuf + 3) = ' ';
 148                 dump_map(client_p, server_p, pbuf + 4);
 149
 150                 i++;
 151         }
 152 }