ircd/m_asll.c

   1 /*
   2  * IRC - Internet Relay Chat, ircd/m_asll.c
   3  * Copyright (C) 2002 Alex Badea <vampire@p16.pub.ro>
   4  *
   5  * See file AUTHORS in IRC package for additional names of
   6  * the programmers.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 1, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * $Id: m_asll.c,v 1.3.2.1 2007/03/28 04:04:32 entrope Exp $
  23  */
  24
  25 /*
  26  * m_functions execute protocol messages on this server:
  27  *
  28  *    cptr    is always NON-NULL, pointing to a *LOCAL* client
  29  *            structure (with an open socket connected!). This
  30  *            identifies the physical socket where the message
  31  *            originated (or which caused the m_function to be
  32  *            executed--some m_functions may call others...).
  33  *
  34  *    sptr    is the source of the message, defined by the
  35  *            prefix part of the message if present. If not
  36  *            or prefix not found, then sptr==cptr.
  37  *
  38  *            (!IsServer(cptr)) => (cptr == sptr), because
  39  *            prefixes are taken *only* from servers...
  40  *
  41  *            (IsServer(cptr))
  42  *                    (sptr == cptr) => the message didn't
  43  *                    have the prefix.
  44  *
  45  *                    (sptr != cptr && IsServer(sptr) means
  46  *                    the prefix specified servername. (?)
  47  *
  48  *                    (sptr != cptr && !IsServer(sptr) means
  49  *                    that message originated from a remote
  50  *                    user (not local).
  51  *
  52  *            combining
  53  *
  54  *            (!IsServer(sptr)) means that, sptr can safely
  55  *            taken as defining the target structure of the
  56  *            message in this server.
  57  *
  58  *    *Always* true (if 'parse' and others are working correct):
  59  *
  60  *    1)      sptr->from == cptr  (note: cptr->from == cptr)
  61  *
  62  *    2)      MyConnect(sptr) <=> sptr == cptr (e.g. sptr
  63  *            *cannot* be a local connection, unless it's
  64  *            actually cptr!). [MyConnect(x) should probably
  65  *            be defined as (x == x->from) --msa ]
  66  *
  67  *    parc    number of variable parameter strings (if zero,
  68  *            parv is allowed to be NULL)
  69  *
  70  *    parv    a NULL terminated list of parameter pointers,
  71  *
  72  *                    parv[0], sender (prefix string), if not present
  73  *                            this points to an empty string.
  74  *                    parv[1]...parv[parc-1]
  75  *                            pointers to additional parameters
  76  *                    parv[parc] == NULL, *always*
  77  *
  78  *            note:   it is guaranteed that parv[0]..parv[parc-1] are all
  79  *                    non-NULL pointers.
  80  */
  81 #include "config.h"
  82
  83 #include "client.h"
  84 #include "hash.h"
  85 #include "ircd.h"
  86 #include "ircd_log.h"
  87 #include "ircd_reply.h"
  88 #include "ircd_string.h"
  89 #include "numeric.h"
  90 #include "numnicks.h"
  91 #include "match.h"
  92 #include "msg.h"
  93 #include "send.h"
  94 #include "s_bsd.h"
  95 #include "s_user.h"
  96
  97 /* #include <assert.h> -- Now using assert in ircd_log.h */
  98 #include <stdlib.h>
  99
 100 static int send_asll_reply(struct Client *from, struct Client *to, char *server,
 101                            int rtt, int up, int down)
 102 {
 103   sendcmdto_one(from, CMD_NOTICE, to,
 104     (up || down) ? "%C :AsLL for %s -- RTT: %ims Upstream: %ims Downstream: %ims" :
 105     rtt ? "%C :AsLL for %s -- RTT: %ims [no asymm info]" :
 106     "%C :AsLL for %s -- [unknown]",
 107     to, server, rtt, up, down);
 108   return 0;
 109 }
 110
 111 /*
 112  * ms_asll - server message handler
 113  */
 114 int ms_asll(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
 115 {
 116   char *mask;
 117   struct Client *acptr;
 118   int hits;
 119   int i;
 120
 121   if (parc < 2)
 122     return need_more_params(sptr, "ASLL");
 123
 124   if (parc > 5) {
 125     if (!(acptr = findNUser(parv[1])))
 126       return 0;
 127     if (MyUser(acptr))
 128       send_asll_reply(sptr, acptr, parv[2], atoi(parv[3]), atoi(parv[4]), atoi(parv[5]));
 129     else
 130       sendcmdto_prio_one(sptr, CMD_ASLL, acptr, "%C %s %s %s %s",
 131         acptr, parv[2], parv[3], parv[4], parv[5]);
 132     return 0;
 133   }
 134
 135   if (hunt_server_prio_cmd(sptr, CMD_ASLL, cptr, 1, "%s %C", 2, parc, parv) != HUNTED_ISME)
 136     return 0;
 137   mask = parv[1];
 138
 139   for (i = hits = 0; i <= HighestFd; i++) {
 140     acptr = LocalClientArray[i];
 141     if (!acptr || !IsServer(acptr) || !MyConnect(acptr) || match(mask, cli_name(acptr)))
 142       continue;
 143     sendcmdto_prio_one(&me, CMD_ASLL, sptr, "%C %s %i %i %i", sptr,
 144       cli_name(acptr), cli_serv(acptr)->asll_rtt,
 145       cli_serv(acptr)->asll_to, cli_serv(acptr)->asll_from);
 146     hits++;
 147   }
 148   sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :AsLL for %s: %d local servers matched", sptr, mask, hits);
 149   return 0;
 150 }
 151
 152 /*
 153  * mo_asll - oper message handler
 154  */
 155 int mo_asll(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
 156 {
 157   char *mask;
 158   struct Client *acptr;
 159   int hits;
 160   int i;
 161
 162   if (parc < 2)
 163     return need_more_params(sptr, "ASLL");
 164
 165   if (parc == 2 && MyUser(sptr))
 166     parv[parc++] = cli_name(&me);
 167
 168   if (hunt_server_prio_cmd(sptr, CMD_ASLL, cptr, 1, "%s %C", 2, parc, parv) != HUNTED_ISME)
 169     return 0;
 170   mask = parv[1];
 171
 172   for (i = hits = 0; i <= HighestFd; i++) {
 173     acptr = LocalClientArray[i];
 174     if (!acptr || !IsServer(acptr) || !MyConnect(acptr) || match(mask, cli_name(acptr)))
 175       continue;
 176     send_asll_reply(&me, sptr, cli_name(acptr), cli_serv(acptr)->asll_rtt,
 177       cli_serv(acptr)->asll_to, cli_serv(acptr)->asll_from);
 178     hits++;
 179   }
 180   sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :AsLL for %s: %d local servers matched", sptr, mask, hits);
 181   return 0;
 182 }