rust/patches/bcryptprimitives.rs
2024-03-09 19:51:11 +00:00

23 lines
657 B
Rust

// Shim for bcryptprimitives.dll. The Wine version shipped with Ubuntu 22.04
// doesn't support it yet. Authored by @ChrisDenton
#![crate_type = "cdylib"]
#![allow(nonstandard_style)]
#[no_mangle]
pub unsafe extern "system" fn ProcessPrng(mut pbData: *mut u8, mut cbData: usize) -> i32 {
while cbData > 0 {
let size = core::cmp::min(cbData, u32::MAX as usize);
RtlGenRandom(pbData, size as u32);
cbData -= size;
pbData = pbData.add(size);
}
1
}
#[link(name = "advapi32")]
extern "system" {
#[link_name = "SystemFunction036"]
pub fn RtlGenRandom(RandomBuffer: *mut u8, RandomBufferLength: u32) -> u8;
}