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WiFiUDP: fix crash when calling destinationIP with no packet available #4036

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Dec 28, 2017
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WiFiUDP: fix crash when calling destinationIP with no packet available #4036

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3 changes: 3 additions & 0 deletions libraries/ESP8266WiFi/src/include/UdpContext.h
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Original file line number Diff line number Diff line change
Expand Up @@ -163,6 +163,9 @@ class UdpContext

uint32_t getDestAddress()
{
if (!_rx_buf)
return 0;

ip_hdr* iphdr = GET_IP_HDR(_rx_buf);
return iphdr->dest.addr;
}
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