"The situation is very fluid, very opaque, and there's a big geopolitical angle. We're in the early stages where Venezuelan production is concerned."
Richard MorrisTechnology reporter
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（一）向境外单位销售的完全在境外消费的研发服务、合同能源管理服务、设计服务、广播影视制作和发行服务、软件服务、电路设计和测试服务、信息系统服务、业务流程管理服务、离岸服务外包业务；
And… that's it! At this point, recv, recvmsg, and similar syscalls can be used to obtain data. The example code above performs some extra work to dynamically resize buffers and to receive Unix credentials, but we can ignore all of that for now.