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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <stdlib.h>
#include <algorithm>
#include <vector>
#include <comphelper/processfactory.hxx>
#include <rtl/strbuf.hxx>
#include <string.h>
#include "DiscoveryService.hxx"
#ifdef WIN32
#include <winsock.h>
typedef int socklen_t;
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
using namespace osl;
using namespace rtl;
using namespace sd;
using namespace std;
DiscoveryService::DiscoveryService()
:
Thread( "sd::DiscoveryService" )
// mSocket()
{
mSocket = socket( AF_INET, SOCK_DGRAM, IPPROTO_UDP );
sockaddr_in aAddr;
aAddr.sin_family = AF_INET;
aAddr.sin_addr.s_addr = htonl(INADDR_ANY);
aAddr.sin_port = htons( PORT_DISCOVERY );
bind( mSocket, (sockaddr*) &aAddr, sizeof(sockaddr_in) );
struct ip_mreq multicastRequest;
multicastRequest.imr_multiaddr.s_addr = inet_addr( "239.0.0.1" );
multicastRequest.imr_interface.s_addr = htonl(INADDR_ANY);
setsockopt( mSocket, IPPROTO_IP, IP_ADD_MEMBERSHIP,
#ifdef WNT
(const char*)
#endif
&multicastRequest, sizeof(multicastRequest));
}
DiscoveryService::~DiscoveryService()
{
}
void DiscoveryService::replyTo( sockaddr_in& rAddr )
{
OStringBuffer aBuffer("LOREMOTE_ADVERTISE\n");
aBuffer.append( OUStringToOString( osl::SocketAddr::getLocalHostname(),
RTL_TEXTENCODING_UTF8 ) ).append( "\n\n" );
sendto( mSocket, aBuffer.getStr(), aBuffer.getLength(), 0,
(sockaddr*) &rAddr, sizeof(rAddr) );
}
void DiscoveryService::execute()
{
fprintf( stderr, "Discovery service is listening\n" );;
char aBuffer[BUFFER_SIZE];
while ( true )
{
memset( aBuffer, 0, sizeof(char) * BUFFER_SIZE );
sockaddr_in aAddr;
socklen_t aLen = sizeof( aAddr );
fprintf( stderr, "DiscoveryService waiting for packet\n" );
recvfrom( mSocket, &aBuffer, BUFFER_SIZE, 0, (sockaddr*) &aAddr, &aLen );
fprintf( stderr, "DiscoveryService received a packet.\n" );
for (int i = 0; i < BUFFER_SIZE; i++ ) {
if ( aBuffer[i] == '\n' )
{
OString aString( aBuffer, i );
if ( aString.compareTo( "LOREMOTE_SEARCH" ) == 0 ) {
replyTo( aAddr );
}
break;
}
}
}
}
DiscoveryService *sd::DiscoveryService::spService = NULL;
void DiscoveryService::setup()
{
if (spService)
return;
spService = new DiscoveryService();
spService->launch();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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