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Added new method to UDP to take a hostname rather than an IP address. Part of issue 243

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This commit is contained in:
amcewen
2011-02-04 21:15:42 +00:00
committed by David A. Mellis
parent abfe299bfd
commit a9c2ebf455
2 changed files with 20 additions and 0 deletions
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17
libraries/Ethernet/Udp.cpp
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@ -30,6 +30,7 @@
#include "socket.h"
#include "Ethernet.h"
#include "Udp.h"
#include "Dns.h"
/* Constructor */
UDP::UDP() : _sock(MAX_SOCK_NUM) {}
@ -74,6 +75,22 @@ void UDP::stop()
_sock = MAX_SOCK_NUM;
}
int UDP::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 UDP::beginPacket(IPAddress ip, uint16_t port)
{
_offset = 0;