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LibCore: Make UDPServer::receive() return ErrorOr<ByteBuffer>

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This is a first step towards handling OOM errors instead of just
crashing the program.

Now UDPServer's method `receive()` return memory allocation
errors explicitly with help of ErrorOr.

This removes one FIXME and make a bunch of new ones. :(
This commit is contained in:
Alexander Narsudinov 2022-12-18 00:15:54 +03:00 • committed by Andreas Kling
parent 9ae9d82a03
commit 767529ebf5
6 changed files with 19 additions and 17 deletions
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2
Userland/Services/LookupServer/DNSServer.cpp
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@ -28,7 +28,7 @@ DNSServer::DNSServer(Object* parent)
ErrorOr<void> DNSServer::handle_client()
{
sockaddr_in client_address;
auto buffer = receive(1024, client_address);
auto buffer = TRY(receive(1024, client_address));
auto optional_request = Packet::from_raw_packet(buffer.data(), buffer.size());
if (!optional_request.has_value()) {
dbgln("Got an invalid DNS packet");