139 lines
5.0 KiB
C
139 lines
5.0 KiB
C
/*
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* IRC - Internet Relay Chat, ircd/m_userip.c
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* Copyright (C) 1990 Jarkko Oikarinen and
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* University of Oulu, Computing Center
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*
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* See file AUTHORS in IRC package for additional names of
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* the programmers.
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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 1, or (at your option)
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* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: m_userip.c 1375 2005-04-22 01:39:08Z klmitch $
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*/
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/*
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* m_functions execute protocol messages on this server:
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*
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* cptr is always NON-NULL, pointing to a *LOCAL* client
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* structure (with an open socket connected!). This
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* identifies the physical socket where the message
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* originated (or which caused the m_function to be
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* executed--some m_functions may call others...).
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*
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* sptr is the source of the message, defined by the
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* prefix part of the message if present. If not
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* or prefix not found, then sptr==cptr.
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*
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* (!IsServer(cptr)) => (cptr == sptr), because
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* prefixes are taken *only* from servers...
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*
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* (IsServer(cptr))
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* (sptr == cptr) => the message didn't
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* have the prefix.
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*
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* (sptr != cptr && IsServer(sptr) means
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* the prefix specified servername. (?)
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*
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* (sptr != cptr && !IsServer(sptr) means
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* that message originated from a remote
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* user (not local).
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*
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* combining
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*
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* (!IsServer(sptr)) means that, sptr can safely
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* taken as defining the target structure of the
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* message in this server.
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*
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* *Always* true (if 'parse' and others are working correct):
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*
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* 1) sptr->from == cptr (note: cptr->from == cptr)
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*
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* 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
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* *cannot* be a local connection, unless it's
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* actually cptr!). [MyConnect(x) should probably
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* be defined as (x == x->from) --msa ]
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*
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* parc number of variable parameter strings (if zero,
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* parv is allowed to be NULL)
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*
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* parv a NULL terminated list of parameter pointers,
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*
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* parv[0], sender (prefix string), if not present
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* this points to an empty string.
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* parv[1]...parv[parc-1]
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* pointers to additional parameters
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* parv[parc] == NULL, *always*
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*
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* note: it is guaranteed that parv[0]..parv[parc-1] are all
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* non-NULL pointers.
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*/
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#include "config.h"
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#include "client.h"
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#include "ircd_reply.h"
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#include "ircd_string.h"
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#include "ircd_features.h"
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#include "ircd_log.h"
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#include "ircd_snprintf.h"
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#include "msgq.h"
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#include "numeric.h"
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#include "s_user.h"
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#include "struct.h"
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/* #include <assert.h> -- Now using assert in ircd_log.h */
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static void userip_formatter(struct Client* cptr, struct Client *sptr, struct MsgBuf* mb)
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{
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char iphost[HOSTLEN+1];
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assert(IsUser(cptr));
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if ((sptr == cptr) || IsAnOper(sptr) || !IsHiddenHost(cptr))
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ircd_snprintf(0, iphost, HOSTLEN, "%s", ircd_ntoa(&cli_ip(cptr)));
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else if (IsCloakIP(cptr))
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ircd_snprintf(0, iphost, HOSTLEN, "%s", cli_user(cptr)->cloakip);
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else if (IsFakeHost(cptr) || IsSetHost(cptr))
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ircd_snprintf(0, iphost, HOSTLEN, "%s", feature_str(FEAT_HIDDEN_IP));
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else if (((feature_int(FEAT_HOST_HIDING_STYLE) == 1) ||
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(feature_int(FEAT_HOST_HIDING_STYLE) == 3)) && IsAccount(cptr))
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ircd_snprintf(0, iphost, HOSTLEN, "%s", feature_str(FEAT_HIDDEN_IP));
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else
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ircd_snprintf(0, iphost, HOSTLEN, "%s", ircd_ntoa(&cli_ip(cptr)));
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msgq_append(0, mb, "%s%s=%c%s@%s", cli_name(cptr),
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SeeOper(sptr,cptr) ? "*" : "",
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cli_user(cptr)->away ? '-' : '+', cli_user(cptr)->username,
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/* Do not *EVER* change this to give opers the real IP.
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* Too many scripts rely on this data and can inadvertently
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* publish the user's real IP, thus breaking the security
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* of +x. If an oper wants the real IP, he should go to
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* /whois to get it.
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*/
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iphost);
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}
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/*
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* m_userip - generic message handler
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*/
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int m_userip(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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assert(0 != cptr);
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assert(cptr == sptr);
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if (parc < 2)
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return need_more_params(sptr, "USERIP");
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send_user_info(sptr, parv[1], RPL_USERIP, userip_formatter);
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return 0;
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}
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