605 lines
13 KiB
C
605 lines
13 KiB
C
/*
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* ngIRCd -- The Next Generation IRC Daemon
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* Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
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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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* Please read the file COPYING, README and AUTHORS for more information.
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*/
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#include "portab.h"
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/**
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* @file
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* Sending IRC commands over the network
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*/
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#include <assert.h>
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#ifdef PROTOTYPES
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# include <stdarg.h>
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#else
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# include <varargs.h>
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#endif
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#include <stdio.h>
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#include "conn-func.h"
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#include "channel.h"
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#include "irc-write.h"
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#define SEND_TO_USER 1
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#define SEND_TO_SERVER 2
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static const char *Get_Prefix PARAMS((CLIENT *Target, CLIENT *Client));
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static void cb_writeStrServersPrefixFlag PARAMS((CLIENT *Client,
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CLIENT *Prefix, void *Buffer));
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static void Send_Marked_Connections PARAMS((CLIENT *Prefix, const char *Buffer));
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/**
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* Send an error message to a client and enforce a penalty time.
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*
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* @param Client The target client.
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* @param Format Format string.
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* @return CONNECTED or DISCONNECTED.
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*/
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#ifdef PROTOTYPES
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GLOBAL bool
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IRC_WriteErrClient( CLIENT *Client, const char *Format, ... )
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#else
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GLOBAL bool
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IRC_WriteErrClient( Client, Format, va_alist )
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CLIENT *Client;
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const char *Format;
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va_dcl
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#endif
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{
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char buffer[1000];
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va_list ap;
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assert(Client != NULL);
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assert(Format != NULL);
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#ifdef PROTOTYPES
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va_start(ap, Format);
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#else
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va_start(ap);
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end(ap);
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IRC_SetPenalty(Client, 2);
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return IRC_WriteStrClientPrefix(Client, Client_ThisServer(),
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"%s", buffer);
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}
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/**
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* Send a message to a client.
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*
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* @param Client The target client.
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* @param Format Format string.
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* @return CONNECTED or DISCONNECTED.
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*/
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#ifdef PROTOTYPES
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GLOBAL bool
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IRC_WriteStrClient( CLIENT *Client, const char *Format, ... )
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#else
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GLOBAL bool
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IRC_WriteStrClient( Client, Format, va_alist )
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CLIENT *Client;
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const char *Format;
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va_dcl
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#endif
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{
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char buffer[1000];
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va_list ap;
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assert(Client != NULL);
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assert(Format != NULL);
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#ifdef PROTOTYPES
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va_start(ap, Format);
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#else
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va_start(ap);
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end(ap);
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return IRC_WriteStrClientPrefix(Client, Client_ThisServer(),
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"%s", buffer);
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}
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/**
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* Send a message to a client using a specific prefix.
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*
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* @param Client The target client.
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* @param Prefix The prefix to use.
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* @param Format Format string.
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* @return CONNECTED or DISCONNECTED.
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*/
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#ifdef PROTOTYPES
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GLOBAL bool
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IRC_WriteStrClientPrefix(CLIENT *Client, CLIENT *Prefix, const char *Format, ...)
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#else
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GLOBAL bool
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IRC_WriteStrClientPrefix(Client, Prefix, Format, va_alist)
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CLIENT *Client;
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CLIENT *Prefix;
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const char *Format;
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va_dcl
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#endif
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{
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/* send text to local and remote clients */
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char buffer[1000];
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va_list ap;
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assert( Client != NULL );
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assert( Format != NULL );
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assert( Prefix != NULL );
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#ifdef PROTOTYPES
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va_start( ap, Format );
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#else
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va_start( ap );
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end( ap );
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return Conn_WriteStr(Client_Conn(Client_NextHop(Client)), ":%s %s",
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Get_Prefix(Client_NextHop(Client), Prefix), buffer);
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}
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/**
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* Send a message to all client in a channel.
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*
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* The message is only sent once per remote server.
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*
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* @param Client The sending client, excluded while forwarding the message.
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* @param Channel The target channel.
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* @param Remote If not set, the message is sent to local clients only.
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* @param Format Format string.
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*/
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#ifdef PROTOTYPES
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GLOBAL void
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IRC_WriteStrChannel(CLIENT *Client, CHANNEL *Chan, bool Remote,
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const char *Format, ...)
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#else
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GLOBAL void
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IRC_WriteStrChannel(Client, Chan, Remote, Format, va_alist)
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CLIENT *Client;
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CHANNEL *Chan;
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bool Remote;
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const char *Format;
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va_dcl
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#endif
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{
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char buffer[1000];
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va_list ap;
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assert( Client != NULL );
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assert( Format != NULL );
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#ifdef PROTOTYPES
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va_start( ap, Format );
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#else
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va_start( ap );
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end( ap );
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IRC_WriteStrChannelPrefix(Client, Chan, Client_ThisServer(),
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Remote, "%s", buffer);
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}
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/**
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* Send a message to all client in a channel using a specific prefix.
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*
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* The message is only sent once per remote server.
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*
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* @param Client The sending client, excluded while forwarding the message.
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* @param Channel The target channel.
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* @param Prefix The prefix to use.
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* @param Remote If not set, the message is sent to local clients only.
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* @param Format Format string.
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*/
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#ifdef PROTOTYPES
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GLOBAL void
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IRC_WriteStrChannelPrefix(CLIENT *Client, CHANNEL *Chan, CLIENT *Prefix,
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bool Remote, const char *Format, ...)
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#else
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GLOBAL void
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IRC_WriteStrChannelPrefix(Client, Chan, Prefix, Remote, Format, va_alist)
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CLIENT *Client;
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CHANNEL *Chan;
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CLIENT *Prefix;
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bool Remote;
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const char *Format;
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va_dcl
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#endif
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{
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char buffer[1000];
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CL2CHAN *cl2chan;
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CONN_ID conn;
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CLIENT *c;
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va_list ap;
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assert( Client != NULL );
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assert( Chan != NULL );
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assert( Prefix != NULL );
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assert( Format != NULL );
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#ifdef PROTOTYPES
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va_start( ap, Format );
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#else
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va_start( ap );
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end( ap );
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Conn_ClearFlags( );
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cl2chan = Channel_FirstMember( Chan );
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while(cl2chan) {
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c = Channel_GetClient( cl2chan );
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if (!Remote) {
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if (Client_Conn(c) <= NONE)
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c = NULL;
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else if(Client_Type(c) == CLIENT_SERVER)
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c = NULL;
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}
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if(c)
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c = Client_NextHop(c);
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if(c && c != Client) {
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/* Ok, another Client */
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conn = Client_Conn(c);
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if (Client_Type(c) == CLIENT_SERVER)
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Conn_SetFlag(conn, SEND_TO_SERVER);
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else
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Conn_SetFlag(conn, SEND_TO_USER);
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}
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cl2chan = Channel_NextMember(Chan, cl2chan);
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}
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Send_Marked_Connections(Prefix, buffer);
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}
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/**
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* Send a message to all the servers in the network.
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*
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* @param Client The sending client, excluded while forwarding the message.
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* @param Format Format string.
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*/
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#ifdef PROTOTYPES
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GLOBAL void
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IRC_WriteStrServers(CLIENT *ExceptOf, const char *Format, ...)
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#else
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GLOBAL void
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IRC_WriteStrServers(ExceptOf, Format, va_alist)
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CLIENT *ExceptOf;
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const char *Format;
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va_dcl
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#endif
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{
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char buffer[1000];
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va_list ap;
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assert( Format != NULL );
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#ifdef PROTOTYPES
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va_start( ap, Format );
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#else
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va_start( ap );
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end( ap );
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IRC_WriteStrServersPrefix(ExceptOf, Client_ThisServer(), "%s", buffer);
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}
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/**
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* Send a message to all the servers in the network using a specific prefix.
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*
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* @param Client The sending client, excluded while forwarding the message.
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* @param Prefix The prefix to use.
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* @param Format Format string.
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*/
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#ifdef PROTOTYPES
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GLOBAL void
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IRC_WriteStrServersPrefix(CLIENT *ExceptOf, CLIENT *Prefix,
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const char *Format, ...)
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#else
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GLOBAL void
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IRC_WriteStrServersPrefix(ExceptOf, Prefix, Format, va_alist)
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CLIENT *ExceptOf;
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CLIENT *Prefix;
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const char *Format;
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va_dcl
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#endif
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{
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char buffer[1000];
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va_list ap;
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assert( Format != NULL );
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assert( Prefix != NULL );
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#ifdef PROTOTYPES
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va_start( ap, Format );
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#else
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va_start( ap );
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end( ap );
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IRC_WriteStrServersPrefixFlag( ExceptOf, Prefix, '\0', "%s", buffer );
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}
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/**
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* Send a message to all the servers in the network using a specific prefix
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* and matching a "client flag".
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*
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* @param Client The sending client, excluded while forwarding the message.
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* @param Prefix The prefix to use.
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* @param Flag Client flag that must be set on the target.
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* @param Format Format string.
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*/
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#ifdef PROTOTYPES
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GLOBAL void
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IRC_WriteStrServersPrefixFlag(CLIENT *ExceptOf, CLIENT *Prefix, char Flag,
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const char *Format, ...)
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#else
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GLOBAL void
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IRC_WriteStrServersPrefixFlag(ExceptOf, Prefix, Flag, Format, va_alist)
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CLIENT *ExceptOf;
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CLIENT *Prefix;
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char Flag;
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const char *Format;
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va_dcl
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#endif
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{
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char buffer[1000];
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va_list ap;
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assert( Format != NULL );
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assert( Prefix != NULL );
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#ifdef PROTOTYPES
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va_start( ap, Format );
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#else
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va_start( ap );
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end( ap );
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IRC_WriteStrServersPrefixFlag_CB(ExceptOf, Prefix, Flag,
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cb_writeStrServersPrefixFlag, buffer);
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}
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/**
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* Send a message to all the servers in the network using a specific prefix
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* and matching a "client flag" using a callback function.
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*
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* @param Client The sending client, excluded while forwarding the message.
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* @param Prefix The prefix to use.
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* @param Flag Client flag that must be set on the target.
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* @param callback Callback function.
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* @param Format Format string.
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*/
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GLOBAL void
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IRC_WriteStrServersPrefixFlag_CB(CLIENT *ExceptOf, CLIENT *Prefix, char Flag,
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void (*callback)(CLIENT *, CLIENT *, void *), void *cb_data)
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{
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CLIENT *c;
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c = Client_First();
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while(c) {
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if (Client_Type(c) == CLIENT_SERVER && Client_Conn(c) > NONE &&
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c != Client_ThisServer() && c != ExceptOf) {
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/* Found a target server, do the flags match? */
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if (Flag == '\0' || Client_HasFlag(c, Flag))
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callback(c, Prefix, cb_data);
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}
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c = Client_Next(c);
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}
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}
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/**
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* Send a message to all "related" clients.
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*
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* Related clients are the one that share one ore more channels with the client
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* sending this message.
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*
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* The message is only sent once per remote server.
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*
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* @param Client The sending client, excluded while forwarding the message.
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* @param Prefix The prefix to use.
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* @param Remote If not set, the message is sent to local clients only.
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* @param Format Format string.
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*/
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#ifdef PROTOTYPES
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GLOBAL void
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IRC_WriteStrRelatedPrefix(CLIENT *Client, CLIENT *Prefix, bool Remote,
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const char *Format, ...)
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#else
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GLOBAL void
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IRC_WriteStrRelatedPrefix(Client, Prefix, Remote, Format, va_alist)
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CLIENT *Client;
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CLIENT *Prefix;
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bool Remote;
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const char *Format;
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va_dcl
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#endif
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{
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CL2CHAN *chan_cl2chan, *cl2chan;
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char buffer[1000];
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CHANNEL *chan;
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CONN_ID conn;
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va_list ap;
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CLIENT *c;
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assert( Client != NULL );
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assert( Prefix != NULL );
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assert( Format != NULL );
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#ifdef PROTOTYPES
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va_start( ap, Format );
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#else
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va_start( ap );
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#endif
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vsnprintf(buffer, sizeof(buffer), Format, ap);
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va_end( ap );
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Conn_ClearFlags( );
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chan_cl2chan = Channel_FirstChannelOf( Client );
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while( chan_cl2chan )
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{
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chan = Channel_GetChannel( chan_cl2chan );
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cl2chan = Channel_FirstMember( chan );
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while( cl2chan )
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{
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c = Channel_GetClient( cl2chan );
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if( ! Remote )
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{
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if( Client_Conn( c ) <= NONE ) c = NULL;
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else if( Client_Type( c ) == CLIENT_SERVER ) c = NULL;
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}
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if( c ) c = Client_NextHop( c );
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if( c && ( c != Client ))
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{
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conn = Client_Conn( c );
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if( Client_Type( c ) == CLIENT_SERVER ) Conn_SetFlag( conn, SEND_TO_SERVER );
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else Conn_SetFlag( conn, SEND_TO_USER );
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}
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cl2chan = Channel_NextMember( chan, cl2chan );
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}
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chan_cl2chan = Channel_NextChannelOf( Client, chan_cl2chan );
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}
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Send_Marked_Connections(Prefix, buffer);
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} /* IRC_WriteStrRelatedPrefix */
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/**
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* Send WALLOPS message.
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*
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* @param Client The sending client, excluded while forwarding the message.
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* @param From The (remote) sender of the message.
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* @param Format Format string.
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*/
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#ifdef PROTOTYPES
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GLOBAL void
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IRC_SendWallops(CLIENT *Client, CLIENT *From, const char *Format, ...)
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#else
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GLOBAL void
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IRC_SendWallops(Client, From, Format, va_alist )
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CLIENT *Client;
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CLIENT *From;
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const char *Format;
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va_dcl
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#endif
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{
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va_list ap;
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char msg[1000];
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CLIENT *to;
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#ifdef PROTOTYPES
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va_start(ap, Format);
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#else
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va_start(ap);
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#endif
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vsnprintf(msg, sizeof(msg), Format, ap);
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va_end(ap);
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for (to=Client_First(); to != NULL; to=Client_Next(to)) {
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if (Client_Conn(to) == NONE) /* no local connection */
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continue;
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switch (Client_Type(to)) {
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case CLIENT_USER:
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if (Client_HasMode(to, 'w'))
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IRC_WriteStrClientPrefix(to, From,
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"WALLOPS :%s", msg);
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break;
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case CLIENT_SERVER:
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if (to != Client)
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IRC_WriteStrClientPrefix(to, From,
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"WALLOPS :%s", msg);
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break;
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}
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}
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} /* IRC_SendWallops */
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/**
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* Set a "penalty time" for an IRC client.
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*
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* Note: penalty times are never set for server links or remote clients!
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*
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* @param Client The client.
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* @param Seconds The additional "penalty time" to enforce.
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*/
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GLOBAL void
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IRC_SetPenalty(CLIENT *Client, time_t Seconds)
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{
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CONN_ID c;
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assert(Client != NULL);
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assert(Seconds > 0);
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if (Client_Type(Client) == CLIENT_SERVER)
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return;
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c = Client_Conn(Client);
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if (c <= NONE)
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return;
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Conn_SetPenalty(c, Seconds);
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} /* IRC_SetPenalty */
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static const char *
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Get_Prefix(CLIENT *Target, CLIENT *Client)
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{
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assert (Target != NULL);
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assert (Client != NULL);
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if (Client_Type(Target) == CLIENT_SERVER)
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return Client_ID(Client);
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else
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return Client_MaskCloaked(Client);
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} /* Get_Prefix */
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static void
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cb_writeStrServersPrefixFlag(CLIENT *Client, CLIENT *Prefix, void *Buffer)
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{
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IRC_WriteStrClientPrefix(Client, Prefix, "%s", Buffer);
|
|
} /* cb_writeStrServersPrefixFlag */
|
|
|
|
/**
|
|
* Send a message to all marked connections using a specific prefix.
|
|
*
|
|
* @param Prefix The prefix to use.
|
|
* @param Buffer The message to send.
|
|
*/
|
|
static void
|
|
Send_Marked_Connections(CLIENT *Prefix, const char *Buffer)
|
|
{
|
|
CONN_ID conn;
|
|
|
|
assert(Prefix != NULL);
|
|
assert(Buffer != NULL);
|
|
|
|
conn = Conn_First();
|
|
while (conn != NONE) {
|
|
if (Conn_Flag(conn) == SEND_TO_SERVER)
|
|
Conn_WriteStr(conn, ":%s %s",
|
|
Client_ID(Prefix), Buffer);
|
|
else if (Conn_Flag(conn) == SEND_TO_USER)
|
|
Conn_WriteStr(conn, ":%s %s",
|
|
Client_MaskCloaked(Prefix), Buffer);
|
|
conn = Conn_Next(conn);
|
|
}
|
|
}
|
|
|
|
/* -eof- */
|