cf6dbe48e0
This commit changes our system resolver to call getaddrinfo directly when CGO is enabled. This change allows us to: 1. obtain the CNAME easily 2. obtain the real getaddrinfo retval 3. handle platform specific oddities such as `EAI_NODATA` returned on Android devices See https://github.com/ooni/probe/issues/2029 and https://github.com/ooni/probe/issues/2029#issuecomment-1140258729 in particular. See https://github.com/ooni/probe/issues/2033 for documentation regarding the desire to see `getaddrinfo`'s retval. See https://github.com/ooni/probe/issues/2118 for possible follow-up changes.
Directory github.com/ooni/probe-engine/experiment
This directory contains the implementation of all the supported experiments, one for each directory. The OONI spec repository contains a description of all the specified experiments.
Note that in the OONI spec repository experiments are called nettests. Originally, they were also called nettests here but that created confusion with nettests in ooni/probe-cli. Therefore, we now use the term experiment to indicate the implementation and the term nettest to indicate the user facing view of such implementation.
Note that some experiments implemented here are not part of
the OONI specification. For example, the urlgetter
experiment is not in the OONI spec repository. The reason why
this happens is that urlgetter is an experiment "library" that
other experiments use to implement their functionality.
Likewise, the example experiment is a minimal experiment that does nothing and you could use to bootstrap the implementation of a new experiment. Of course, this experiment is not part of the OONI specification.