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beginPacket can be used without listening on socket #185

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Merged
merged 1 commit into from
Feb 8, 2017
Merged

beginPacket can be used without listening on socket #185

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22 changes: 22 additions & 0 deletions libraries/WiFi/src/WiFiUdp.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -130,7 +130,29 @@ int WiFiUDP::beginMulticastPacket(){
int WiFiUDP::beginPacket(){
if(!remote_port)
return 0;

// allocate tx_buffer if is necessary
if(!tx_buffer){
tx_buffer = new char[1460];
if(!tx_buffer){
log_e("could not create tx buffer: %d", errno);
return 0;
}
}

tx_buffer_len = 0;

// check whereas socket is already open
if (udp_server != -1)
return 1;

if ((udp_server=socket(AF_INET, SOCK_DGRAM, 0)) == -1){
log_e("could not create socket: %d", errno);
return 0;
}

fcntl(udp_server, F_SETFL, O_NONBLOCK);

return 1;
}

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