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/* |
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* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
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* |
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* Copyright (c) 1997-2019 ircd-hybrid development team |
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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* USA |
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*/ |
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|
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/*! \file m_ping.c |
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* \brief Includes required functions for processing the PING command. |
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* \version $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "client.h" |
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#include "ircd.h" |
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#include "numeric.h" |
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#include "send.h" |
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#include "irc_string.h" |
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#include "parse.h" |
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#include "modules.h" |
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#include "hash.h" |
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#include "conf.h" |
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#include "server.h" |
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|
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|
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/*! \brief PING command handler |
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* |
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* \param source_p Pointer to allocated Client struct from which the message |
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* originally comes from. This can be a local or remote client. |
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* \param parc Integer holding the number of supplied arguments. |
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* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL |
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* pointers. |
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* \note Valid arguments for this command are: |
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* - parv[0] = command |
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* - parv[1] = origin |
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* - parv[2] = destination |
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*/ |
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static int |
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m_ping(struct Client *source_p, int parc, char *parv[]) |
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{ |
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struct Client *target_p = NULL; |
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|
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if (parc < 2 || EmptyString(parv[1])) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_NOORIGIN); |
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return 0; |
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} |
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|
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const char *const destination = parv[2]; /* Will get NULL or pointer (parc >= 2!!) */ |
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if (ConfigServerHide.disable_remote_commands && !HasUMode(source_p, UMODE_OPER)) |
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{ |
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sendto_one(source_p, ":%s PONG %s :%s", me.name, |
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(destination) ? destination : me.name, parv[1]); |
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return 0; |
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} |
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|
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if (EmptyString(destination) || ((target_p = hash_find_server(destination)) && IsMe(target_p))) |
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sendto_one(source_p, ":%s PONG %s :%s", me.name, me.name, parv[1]); |
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else if (target_p) |
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sendto_one(target_p, ":%s PING %s :%s", |
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ID_or_name(source_p, target_p), source_p->name, |
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ID_or_name(target_p, target_p)); |
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else |
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sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, destination); |
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|
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return 0; |
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} |
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|
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/*! \brief PING command handler |
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* |
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* \param source_p Pointer to allocated Client struct from which the message |
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* originally comes from. This can be a local or remote client. |
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* \param parc Integer holding the number of supplied arguments. |
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* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL |
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* pointers. |
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* \note Valid arguments for this command are: |
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* - parv[0] = command |
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* - parv[1] = origin |
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* - parv[2] = destination |
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*/ |
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static int |
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ms_ping(struct Client *source_p, int parc, char *parv[]) |
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{ |
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struct Client *target_p = NULL; |
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|
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if (parc < 2 || EmptyString(parv[1])) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_NOORIGIN); |
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return 0; |
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} |
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|
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const char *const destination = parv[2]; /* Will get NULL or pointer (parc >= 2!!) */ |
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if (EmptyString(destination) || ((target_p = hash_find_server(destination)) && IsMe(target_p))) |
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sendto_one(source_p, ":%s PONG %s :%s", ID_or_name(&me, source_p), |
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me.name, ID_or_name(source_p, source_p)); |
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else if (target_p) |
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{ |
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if (target_p->from != source_p->from) |
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sendto_one(target_p, ":%s PING %s :%s", |
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ID_or_name(source_p, target_p), source_p->name, |
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ID_or_name(target_p, target_p)); |
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} |
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else if (!IsDigit(*destination)) |
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sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, destination); |
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|
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return 0; |
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} |
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|
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static struct Message ping_msgtab = |
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{ |
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.cmd = "PING", |
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.args_max = MAXPARA, |
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.handlers[UNREGISTERED_HANDLER] = m_unregistered, |
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.handlers[CLIENT_HANDLER] = m_ping, |
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.handlers[SERVER_HANDLER] = ms_ping, |
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.handlers[ENCAP_HANDLER] = m_ignore, |
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.handlers[OPER_HANDLER] = m_ping |
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}; |
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|
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static void |
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module_init(void) |
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{ |
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mod_add_cmd(&ping_msgtab); |
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} |
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|
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static void |
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module_exit(void) |
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{ |
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mod_del_cmd(&ping_msgtab); |
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} |
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|
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struct module module_entry = |
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{ |
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.version = "$Revision$", |
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.modinit = module_init, |
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.modexit = module_exit, |
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}; |
