int WiFiEspUDP::beginPacket(IPAddress ip, uint16_t port)
{
char s[18];
sprintf(s, "%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
return beginPacket(s, port);
}
int WiFiUDP::beginPacket(const char *host, uint16_t port)
{
IPAddress remote_addr;
if (WiFi.hostByName(host, remote_addr))
{
return beginPacket(remote_addr, port);
}
return 0;
}
int WiFiUDP::beginPacket(const char *host, uint16_t port)
{
// Look up the host first
int ret = 0;
IPAddress remote_addr;
if (WiFi.hostByName(host, remote_addr))
{
return beginPacket(remote_addr, port);
}
return ret;
}
int LWiFiUDP::beginPacket(const char *host, uint16_t port)
{
// DNS loopup and bypass to IP version
if (LWiFi.hostByName(host, m_sendToIP))
{
return beginPacket(m_sendToIP, port);
}
else
{
return 0;
}
}
int EthernetUDP::beginPacket(const char *host, uint16_t port)
{
// Look up the host first
int ret = 0;
DNSClient dns;
IPAddress remote_addr;
dns.begin(Ethernet.dnsServerIP());
ret = dns.getHostByName(host, remote_addr);
if (ret == 1)
return beginPacket(remote_addr, port);
else
return ret;
}
int EthernetUDP::beginPacket(const char *host, uint16_t port)
{
ip_addr_t ip;
ip.addr = 0;
dns_gethostbyname(host, &ip, do_dns, &ip);
while(!ip.addr) {
delay(10);
}
if(ip.addr == IPADDR_NONE) return false;
return(beginPacket(IPAddress(ip.addr), port));
}
int BridgeUDP::beginPacket(IPAddress ip, uint16_t port)
{
if (!opened)
return 0;
String address;
address.reserve(18);
address += ip[0];
address += '.';
address += ip[1];
address += '.';
address += ip[2];
address += '.';
address += ip[3];
return beginPacket(address.c_str(), port);
}
/* Add a byte to the currently assembled packet if there is space
* if there isn't space, either truncate (ignore) or split the packet.
*/
void UdpBytewiseClass::write(uint8_t b) {
if(_txIndex>= UDP_TX_PACKET_MAX_SIZE) {
//buffer is full - we can either truncate the packet or split in two
switch (_txOverflowStrategy) {
case UDP_TX_OVERFLOW_SPLIT:
endPacket();
beginPacket(_txIp,_txPort);
//fall through to normal add of byte to buffer below
break;
case UDP_TX_OVERFLOW_TRUNCATE:
default:
//don't add - just ignore bytes past buffer size
return;
}
}
_txBuffer[_txIndex++] = b;
}
//--tested, working--//
int WiFiUDP::beginPacket(const char *host, uint16_t port)
{
//
//look up host's IP address
//
IPAddress ip;
int success = WiFi.hostByName((char*)host, ip);
//
//if host successfully resolved to IP, begin packet to that IP
//
if (success) {
return beginPacket(ip, port);
} else {
return 0;
}
}
void SLIPEncodedSerial::encode(const uint8_t *buf, int size) {
beginPacket();
while (size--)
encode(*buf++);
endPacket();
}