Matthew Baldwin

> Actually, would it make sense for the skip_write to return a `s2n_blob_slice`, so we carry around both the size, and the pointer together? > > https://github.com/awslabs/s2n/blob/0e74e54a14c4f48f95ebcb24cffd6690d0c11e4d/utils/s2n_blob.c#L55 love it!

i'm working on a PR which will add an extension callback which can be invoked for a specific extension, and it will pass in the data from the peer. this...