How to fuzz coap_read()

[bshastry]

Hi,

It seems to me that coap_read() is an interesting API to fuzz because it processes network data. How can I go about writing a test case to fuzz this API. The main issue I see is the use of sockets to obtain data from as against from memory (supplied by libFuzzer).

[mrdeep1]

I have no simple suggestions.

I did think of memstream as an alternative to read from instead of a socket, but that always provides a null terminator.