Support no_std
randombit opened this issue · comments
We can get the C types via libc, which supports no_std.
This requires removing use of Vec which would be a major change in API but probably worthwhile overall.
Good first step would be to just support no_std within botan-sys, which just requires using the libc types.
Think the trick is to implement no_std compatible APIs that write to/read from slices, and then in situations when std is available implement the current API on top of the no_std implementations.
FFI CString requires libstd so I think we are SOL here
Some hope of progress in rust-lang/rust#46736
Alternatively can DIY it ala https://gitlab.com/worr/rcstring/blob/master/src/lib.rs