Function openssl_sys::EVP_PKEY_CTX_add1_hkdf_info
pub unsafe fn EVP_PKEY_CTX_add1_hkdf_info(ctx: *mut EVP_PKEY_CTX, info: *const u8, infolen: c_int) -> c_intThe portability is definied by:
#[cfg(all(ossl110, not(ossl300)))]