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Implement fuzzed_dns_lookup_function as a lambda.

As wisely suggested by MarcoFalke in #19415 (comment). Thanks! :)

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@vasild vasild left a comment

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ACK 7c8c140

const bool allow_lookup = fuzzed_data_provider.ConsumeBool();
const int default_port = fuzzed_data_provider.ConsumeIntegral<int>();

auto fuzzed_dns_lookup_function = [&](const std::string&, bool) {
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This is impossible to reuse if another FUZZ_TARGET() be added. It is ok since here we have just one FUZZ_TARGET() and if ever another one is added and reuse needed, then it could be done in another way.

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I think (and hope) that the netbase_dns_lookup fuzzing harness should cover all our low-level DNS fuzzing needs, so I think the probability that we'll need to call fuzzed_dns_lookup_function from another FUZZ_TARGET in the future is relatively low.

In other words: let's cross that fuzzing bridge when we come to it :)

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YAGNI (you ain't gonna need it)

@maflcko
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maflcko commented Mar 15, 2021

cr ACK 7c8c140

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Tested ACK 7c8c140

@maflcko maflcko merged commit 9a5e097 into bitcoin:master Mar 15, 2021
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3rd time today my ACK missed a merge by a few seconds...there are days like that :D

@practicalswift practicalswift deleted the λ branch April 10, 2021 19:46
@bitcoin bitcoin locked as resolved and limited conversation to collaborators Aug 16, 2022
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4 participants