vector<uia::comm::endpoint>
sim_socket::local_endpoints()
{
vector<uia::comm::endpoint> result;
for (auto ep : host_->local_endpoints()) {
result.emplace_back(ep.address(), local_port());
}
return result;
}
/************************************************************************
* void udp_send(WORD datalength)
* This function is called by the application to send a UDP
* packet. Values from global variables, common memory
* space and the passed data length are used.
* Optionally, a pseudo header is constructed and the UDP
* checksum calculated.
***********************************************************************/
void udp_send(WORD datalength, BYTE ephemeral)
{
WORD cssum;
ipstat.udptx++;
/* total size of IP datagram is the size of IP header */
/* plus UDP header, plus UDP data */
ip.totallen=IPSIZE+UDPHSIZE+datalength;
/* place IP header and start of trasnmit buffer */
txpos=0;
ip_header(PROTUDP);
/* use an ephemeral source port, this depends on the
* application, and must be specified when calling
* the function */
if (ephemeral) tx_word(local_port());
else tx_word(udph.dest);
/* destination port, as source port from incoming packet */
tx_word(udph.src);
/* UDP length, header length plus data length */
tx_word(UDPHSIZE+datalength);
/* UDP checksum */
tx_word(0x00);
/* UDP checksumming is specified at compile time
* if checksumming is disabled, a zero value is sent
* otherwise the pseudo header is added and checksummed
* but NOT sent */
#ifdef UPDCHECKSUM
txpos+=datalength;
tx_byte(IP1);
tx_byte(IP2);
tx_byte(IP3);
tx_byte(IP4);
tx_byte(ip.destaddr[0]);
tx_byte(ip.destaddr[1]);
tx_byte(ip.destaddr[2]);
tx_byte(ip.destaddr[3]);
tx_byte(0x00);
tx_byte(PROTUDP);
tx_word(10+udpdatal);
cssum = chksm(&txbuffer[20],8+datalength+12);
put_checksum(cssum,&txbuffer[IPSIZE+6]);
#endif
/* call SLIP to send out the packet */
slip_send(txbuffer,IPSIZE+UDPHSIZE+datalength);
}
std::string str_local_port(void) const
{
std::stringstream ss;
ss << local_port();
return ss.str();
}
Socket_Info local_socket_info(void) const
{
return Socket_Info(local_address(), local_port());
}
