RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 471a2aa6066a861a8cbccec1aba174a3ae0ec5a7

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chenyong 8cda48a132 [net][sal] Add SAL (socket abstraction layer) framework		преди 7 години
..
af_inet_at.c	8cda48a132 [net][sal] Add SAL (socket abstraction layer) framework	преди 7 години
af_inet_lwip.c	8cda48a132 [net][sal] Add SAL (socket abstraction layer) framework	преди 7 години