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/*
Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the Queen in
Right of Canada (Communications Research Center Canada)
Copyright (C) 2013 Matthias P. Braendli
http://mpb.li
UDP output
*/
/*
This file is part of CRC-DabMux.
CRC-DabMux is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
CRC-DabMux is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with CRC-DabMux. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cstring>
#include <cstdio>
#include <limits.h>
#include "dabOutput.h"
#include "UdpSocket.h"
#ifdef _WIN32
# include <fscfg.h>
# include <sdci.h>
#else
# include <netinet/in.h>
# include <sys/types.h>
# include <sys/socket.h>
# include <sys/ioctl.h>
# include <linux/if_packet.h>
# include <linux/netdevice.h>
# include <net/if_arp.h>
#endif
int DabOutputUdp::Open(const char* name)
{
// we are going to modify it
char* hostport = strdup(name); // the name is actually an tuple host:port
char* address;
long port;
address = strchr(hostport, ':');
if (address == NULL) {
etiLog.printHeader(TcpLog::ERR,
"\"%s\" is an invalid format for UDP address: "
"should be [address]:port - > aborting\n",
hostport);
goto udp_open_fail;
}
// terminate string hostport after the host, and advance address to the port number
*(address++) = 0;
port = strtol(address, (char **)NULL, 10);
if ((port == LONG_MIN) || (port == LONG_MAX)) {
etiLog.printHeader(TcpLog::ERR,
"can't convert port number in UDP address %s\n", address);
goto udp_open_fail;
}
if (port == 0) {
etiLog.printHeader(TcpLog::ERR,
"can't use port number 0 in UDP address\n");
goto udp_open_fail;
}
address = hostport;
if (strlen(address) > 0) {
if (this->packet_->getAddress().setAddress(address) == -1) {
etiLog.printHeader(TcpLog::ERR, "can't set address %s (%s: %s) "
"-> aborting\n", address, inetErrDesc, inetErrMsg);
goto udp_open_fail;
}
}
this->packet_->getAddress().setPort(port);
if (this->socket_->create() == -1) {
etiLog.printHeader(TcpLog::ERR, "can't create UDP socket (%s: %s) "
"-> aborting\n)", inetErrDesc, inetErrMsg);
goto udp_open_fail;
}
//sprintf(hostport, "%s:%i", this->packet_->getAddress().getHostAddress(),
// this->packet_->getAddress().getPort());
return 0;
udp_open_fail:
// strdup forces us to free
free(hostport);
return -1;
}
int DabOutputUdp::Write(void* buffer, int size)
{
this->packet_->setLength(0);
this->packet_->addData(buffer, size);
return this->socket_->send(*this->packet_);
}
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