mirror of
https://github.com/matrix-construct/construct
synced 2024-09-08 17:55:47 +02:00
Also fix up some return values and stuff to use bool (or void if nothing). I just did it whilst I was here. According to jilles, the return value used to signify whether or not the client had exited. This was error-prone and was fixed a long, long time ago, but the return value was left int for historical reasons. Since the return type is not used (and has no clear use case anyway), it's safe to just get rid of it.
219 lines
5.5 KiB
C
219 lines
5.5 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_map.c: Sends an Undernet compatible map to a user.
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*
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* Copyright (C) 2002 by the past and present ircd coders, and others.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "stdinc.h"
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#include "client.h"
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#include "modules.h"
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#include "numeric.h"
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#include "send.h"
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#include "s_conf.h"
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#include "scache.h"
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#define USER_COL 50 /* display | Users: %d at col 50 */
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static const char map_desc[] = "Provides the MAP command to view network topology information";
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static void m_map(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static void mo_map(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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struct Message map_msgtab = {
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"MAP", 0, 0, 0, 0,
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{mg_unreg, {m_map, 0}, mg_ignore, mg_ignore, mg_ignore, {mo_map, 0}}
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};
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mapi_clist_av1 map_clist[] = { &map_msgtab, NULL };
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DECLARE_MODULE_AV2(map, NULL, NULL, map_clist, NULL, NULL, NULL, NULL, map_desc);
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static void dump_map(struct Client *client_p, struct Client *root, char *pbuf);
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static void flattened_map(struct Client *client_p);
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static char buf[BUFSIZE];
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/* m_map
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*/
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static void
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m_map(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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if((!IsExemptShide(source_p) && ConfigServerHide.flatten_links) ||
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ConfigFileEntry.map_oper_only)
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{
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flattened_map(client_p);
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sendto_one_numeric(client_p, RPL_MAPEND, form_str(RPL_MAPEND));
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return;
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}
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dump_map(client_p, &me, buf);
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sendto_one_numeric(client_p, RPL_MAPEND, form_str(RPL_MAPEND));
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}
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/*
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** mo_map
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*/
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static void
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mo_map(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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dump_map(client_p, &me, buf);
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scache_send_missing(client_p);
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sendto_one_numeric(client_p, RPL_MAPEND, form_str(RPL_MAPEND));
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}
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/*
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** dump_map
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** dumps server map, called recursively.
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*/
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static void
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dump_map(struct Client *client_p, struct Client *root_p, char *pbuf)
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{
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int cnt = 0, i = 0, len, frac;
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struct Client *server_p;
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rb_dlink_node *ptr;
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*pbuf = '\0';
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rb_strlcat(pbuf, root_p->name, BUFSIZE);
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if (has_id(root_p))
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{
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rb_strlcat(pbuf, "[", BUFSIZE);
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rb_strlcat(pbuf, root_p->id, BUFSIZE);
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rb_strlcat(pbuf, "]", BUFSIZE);
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}
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len = strlen(buf);
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buf[len] = ' ';
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if(len < USER_COL)
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{
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for (i = len + 1; i < USER_COL; i++)
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{
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buf[i] = '-';
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}
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}
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frac = (1000 * rb_dlink_list_length(&root_p->serv->users) + Count.total / 2) / Count.total;
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snprintf(buf + USER_COL, BUFSIZE - USER_COL,
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" | Users: %5lu (%2d.%1d%%)", rb_dlink_list_length(&root_p->serv->users),
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frac / 10, frac % 10);
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sendto_one_numeric(client_p, RPL_MAP, form_str(RPL_MAP), buf);
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if(root_p->serv->servers.head != NULL)
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{
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cnt += rb_dlink_list_length(&root_p->serv->servers);
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if(cnt)
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{
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if(pbuf > buf + 3)
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{
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pbuf[-2] = ' ';
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if(pbuf[-3] == '`')
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pbuf[-3] = ' ';
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}
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}
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}
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i = 1;
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RB_DLINK_FOREACH(ptr, root_p->serv->servers.head)
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{
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server_p = ptr->data;
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*pbuf = ' ';
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if(i < cnt)
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*(pbuf + 1) = '|';
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else
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*(pbuf + 1) = '`';
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*(pbuf + 2) = '-';
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*(pbuf + 3) = ' ';
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dump_map(client_p, server_p, pbuf + 4);
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i++;
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}
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}
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/*
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* flattened_map - display a version of map that doesn't give away routing
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* information to users when flattened links is enabled.
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*/
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static void
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flattened_map(struct Client *client_p)
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{
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char buf[BUFSIZE];
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rb_dlink_node *ptr;
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struct Client *target_p;
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int i, len;
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int cnt = 0;
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/* First display me as the root */
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rb_strlcpy(buf, me.name, BUFSIZE);
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len = strlen(buf);
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buf[len] = ' ';
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if(len < USER_COL)
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{
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for (i = len + 1; i < USER_COL; i++)
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{
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buf[i] = '-';
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}
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}
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snprintf(buf + USER_COL, BUFSIZE - USER_COL,
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" | Users: %5lu (%4.1f%%)", rb_dlink_list_length(&me.serv->users),
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100 * (float) rb_dlink_list_length(&me.serv->users) / (float) Count.total);
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sendto_one_numeric(client_p, RPL_MAP, form_str(RPL_MAP), buf);
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/* Next, we run through every other server and list them */
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RB_DLINK_FOREACH(ptr, global_serv_list.head)
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{
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target_p = ptr->data;
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cnt++;
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/* Skip ourselves, it's already counted */
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if(IsMe(target_p))
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continue;
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/* if we're hidden, go on to the next leaf */
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if(!ConfigServerHide.disable_hidden && IsHidden(target_p))
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continue;
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if (cnt == rb_dlink_list_length(&global_serv_list))
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rb_strlcpy(buf, " `- ", BUFSIZE);
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else
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rb_strlcpy(buf, " |- ", BUFSIZE);
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rb_strlcat(buf, target_p->name, BUFSIZE);
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len = strlen(buf);
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buf[len] = ' ';
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if(len < USER_COL)
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{
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for (i = len + 1; i < USER_COL; i++)
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{
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buf[i] = '-';
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}
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}
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snprintf(buf + USER_COL, BUFSIZE - USER_COL,
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" | Users: %5lu (%4.1f%%)", rb_dlink_list_length(&target_p->serv->users),
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100 * (float) rb_dlink_list_length(&target_p->serv->users) / (float) Count.total);
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sendto_one_numeric(client_p, RPL_MAP, form_str(RPL_MAP), buf);
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}
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}
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