- Added new source module "rendezvous".
This commit is contained in:
Alexander Barton
parent
6e0c5698e4
commit
aa15257936
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@ -1,6 +1,6 @@
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#
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# ngIRCd -- The Next Generation IRC Daemon
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# Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
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# Copyright (c)2001-2003 by Alexander Barton (alex@barton.de)
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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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@ -8,7 +8,7 @@
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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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# $Id: Makefile.am,v 1.36 2003/01/13 12:20:16 alex Exp $
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# $Id: Makefile.am,v 1.37 2003/02/23 12:02:26 alex Exp $
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#
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AUTOMAKE_OPTIONS = ../portab/ansi2knr
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@ -21,7 +21,8 @@ sbin_PROGRAMS = ngircd
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ngircd_SOURCES = ngircd.c channel.c client.c conf.c conn.c conn-zip.c conn-func.c \
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hash.c irc.c irc-channel.c irc-info.c irc-login.c irc-mode.c irc-op.c \
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irc-oper.c irc-server.c irc-write.c lists.c log.c match.c parse.c resolve.c
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irc-oper.c irc-server.c irc-write.c lists.c log.c match.c parse.c \
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rendezvous.c resolve.c
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ngircd_LDFLAGS = -L../portab -L../tool
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@ -29,7 +30,8 @@ ngircd_LDADD = -lngportab -lngtool
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noinst_HEADERS = ngircd.h channel.h client.h conf.h conn.h conn-zip.h conn-func.h \
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hash.h irc.h irc-channel.h irc-info.h irc-login.h irc-mode.h irc-op.h \
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irc-oper.h irc-server.h irc-write.h lists.h log.h match.h parse.h resolve.h \
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irc-oper.h irc-server.h irc-write.h lists.h log.h match.h parse.h \
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rendezvous.h resolve.h \
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messages.h defines.h
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clean-local:
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@ -0,0 +1,229 @@
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/*
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* ngIRCd -- The Next Generation IRC Daemon
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* Copyright (c)2001-2003 by Alexander Barton (alex@barton.de)
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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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* Rendezvous service registration (using Mach Ports, e.g. Mac OS X)
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*/
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#include "portab.h"
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#ifdef RENDEZVOUS
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static char UNUSED id[] = "$Id: rendezvous.c,v 1.1 2003/02/23 12:02:26 alex Exp $";
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#include "imp.h"
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef HAVE_MACH_PORT_H
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#include "mach/port.h"
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#include "mach/message.h"
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#endif
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#ifdef HAVE_DNSSERVICEDISCOVERY_DNSSERVICEDISCOVERY_H
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#include <DNSServiceDiscovery/DNSServiceDiscovery.h>
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#endif
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#include "defines.h"
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#include "log.h"
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#include "exp.h"
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#include "rendezvous.h"
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typedef struct _service
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{
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dns_service_discovery_ref Discovery_Ref;
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mach_port_t Mach_Port;
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CHAR Desc[CLIENT_ID_LEN];
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} SERVICE;
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LOCAL VOID Registration_Reply_Handler( DNSServiceRegistrationReplyErrorType ErrCode, VOID *Context );
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LOCAL VOID Unregister( INT Idx );
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#define MAX_RENDEZVOUS 1000
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#define MAX_MACH_MSG_SIZE 512
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LOCAL SERVICE My_Rendezvous[MAX_RENDEZVOUS];
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GLOBAL VOID Rendezvous_Init( VOID )
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{
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/* Initialize structures */
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INT i;
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for( i = 0; i < MAX_RENDEZVOUS; i++ )
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{
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My_Rendezvous[i].Discovery_Ref = 0;
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My_Rendezvous[i].Mach_Port = 0;
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}
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} /* Rendezvous_Init */
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GLOBAL VOID Rendezvous_Exit( VOID )
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{
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/* Clean up & exit module */
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INT i;
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for( i = 0; i < MAX_RENDEZVOUS; i++ )
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{
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if( My_Rendezvous[i].Discovery_Ref ) Unregister( i );
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}
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} /* Rendezvous_Exit */
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GLOBAL BOOLEAN Rendezvous_Register( CHAR *Name, CHAR *Type, UINT Port )
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{
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/* Register new service */
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INT i;
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/* Search free port structure */
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for( i = 0; i < MAX_RENDEZVOUS; i++ ) if( ! My_Rendezvous[i].Discovery_Ref ) break;
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if( i >= MAX_RENDEZVOUS )
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{
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Log( LOG_ERR, "Can't register \"%s\" with Rendezvous: limit (%d) reached!", Name, MAX_RENDEZVOUS );
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return FALSE;
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}
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strlcpy( My_Rendezvous[i].Desc, Name, sizeof( My_Rendezvous[i].Desc ));
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/* Register new service */
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My_Rendezvous[i].Discovery_Ref = DNSServiceRegistrationCreate( Name, Type, "", htonl( Port ), "", Registration_Reply_Handler, My_Rendezvous[i].Desc );
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if( ! My_Rendezvous[i].Discovery_Ref )
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{
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Log( LOG_ERR, "Can't register \"%s\" with Rendezvous: can't register service!", My_Rendezvous[i].Desc );
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return FALSE;
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}
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/* Get and save the corresponding Mach Port */
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My_Rendezvous[i].Mach_Port = DNSServiceDiscoveryMachPort( My_Rendezvous[i].Discovery_Ref );
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if( ! My_Rendezvous[i].Mach_Port )
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{
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Log( LOG_ERR, "Can't register \"%s\" with Rendezvous: got no Mach Port!", My_Rendezvous[i].Desc );
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/* Here we actually leek a descriptor :-( */
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My_Rendezvous[i].Discovery_Ref = 0;
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return FALSE;
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}
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Log( LOG_DEBUG, "Rendezvous: Registering \"%s\" ...", My_Rendezvous[i].Desc );
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return TRUE;
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} /* Rendezvous_Register */
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GLOBAL BOOLEAN Rendezvous_Unregister( CHAR *Name )
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{
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/* Unregister service from rendezvous */
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INT i;
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BOOLEAN ok;
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ok = FALSE;
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for( i = 0; i < MAX_RENDEZVOUS; i++ )
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{
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if( strcmp( Name, My_Rendezvous[i].Desc ) == 0 )
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{
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Unregister( i );
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ok = TRUE;
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}
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}
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return ok;
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} /* Rendezvous_Unregister */
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GLOBAL VOID Rendezvous_UnregisterListeners( VOID )
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{
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/* Unregister all our listening sockets from Rendezvous */
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INT i;
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for( i = 0; i < MAX_RENDEZVOUS; i++ )
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{
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if( strchr( My_Rendezvous[i].Desc, '.' )) Unregister( i );
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}
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} /* Rendezvous_UnregisterListeners */
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GLOBAL VOID Rendezvous_Handler( VOID )
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{
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/* Handle all Rendezvous stuff; this function must be called
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* periodically from the run loop of the main program */
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INT i;
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CHAR buffer[MAX_MACH_MSG_SIZE];
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mach_msg_return_t result;
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mach_msg_header_t *msg;
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for( i = 0; i < MAX_RENDEZVOUS; i++ )
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{
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if( ! My_Rendezvous[i].Discovery_Ref ) continue;
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/* Read message from Mach Port */
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msg = (mach_msg_header_t *)buffer;
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result = mach_msg( msg, MACH_RCV_MSG|MACH_RCV_TIMEOUT, 0, MAX_MACH_MSG_SIZE, My_Rendezvous[i].Mach_Port, 1, 0 );
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/* Handle message */
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if( result == MACH_MSG_SUCCESS ) DNSServiceDiscovery_handleReply( msg );
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#ifdef DEBUG
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else if( result != MACH_RCV_TIMED_OUT ) Log( LOG_DEBUG, "mach_msg(): %ld", (LONG)result );
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#endif
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}
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} /* Rendezvous_Handler */
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LOCAL VOID Registration_Reply_Handler( DNSServiceRegistrationReplyErrorType ErrCode, VOID *Context )
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{
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CHAR txt[50];
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if( ErrCode == kDNSServiceDiscoveryNoError )
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{
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/* Success! */
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Log( LOG_INFO, "Successfully registered \"%s\" with Rendezvous.", Context ? Context : "NULL" );
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return;
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}
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switch( ErrCode )
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{
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case kDNSServiceDiscoveryAlreadyRegistered:
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strcpy( txt, "name already registered!" );
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break;
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case kDNSServiceDiscoveryNameConflict:
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strcpy( txt, "name conflict!" );
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break;
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default:
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sprintf( txt, "error code %ld!", (LONG)ErrCode );
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}
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Log( LOG_INFO, "Can't register \"%s\" with Rendezvous: %s", Context ? Context : "NULL", txt );
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} /* Registration_Reply_Handler */
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LOCAL VOID Unregister( INT Idx )
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{
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/* Unregister service */
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DNSServiceDiscoveryDeallocate( My_Rendezvous[Idx].Discovery_Ref );
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Log( LOG_INFO, "Unregistered \"%s\" from Rendezvous.", My_Rendezvous[Idx].Desc );
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My_Rendezvous[Idx].Discovery_Ref = 0;
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} /* Unregister */
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#endif /* RENDEZVOUS */
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/* -eof- */
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@ -0,0 +1,39 @@
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/*
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* ngIRCd -- The Next Generation IRC Daemon
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* Copyright (c)2001-2003 by Alexander Barton (alex@barton.de)
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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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* $Id: rendezvous.h,v 1.1 2003/02/23 12:02:26 alex Exp $
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*
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* "Rendezvous" functions (Header)
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*/
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#ifdef RENDEZVOUS
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#ifndef __rdezvous_h__
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#define __rdezvous_h__
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GLOBAL VOID Rendezvous_Init( VOID );
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GLOBAL VOID Rendezvous_Exit( VOID );
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GLOBAL BOOLEAN Rendezvous_Register( CHAR *Name, CHAR *Type, UINT Port );
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GLOBAL BOOLEAN Rendezvous_Unregister( CHAR *Name );
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GLOBAL VOID Rendezvous_UnregisterListeners( VOID );
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GLOBAL VOID Rendezvous_Handler( VOID );
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#endif /* __rdezvous_h__ */
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#endif /* RENDEZVOUS */
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/* -eof- */
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