b818852cdb
Motivation: DatagramPacket.recipient() doesn't return the actual destination IP, but the IP the app is bound to. Modification: - IP_RECVORIGDSTADDR option is enabled for UDP sockets, which allows retrieval of ancillary information containing the original recipient. - _recvFrom(...) function from transport-native-unix-common/src/main/c/netty_unix_socket.c is modified such that if IP_RECVORIGDSTADDR is set, recvmsg is used instead of recvfrom; enabling the retrieval of the original recipient. - DatagramSocketAddress also contains a 'local' address, representing the recipient. - EpollDatagramChannel is updated to return the retrieved recipient address instead of the address the channel is bound to. Result: Fixes #4950. |
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