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Update zx_cprng_draw_new on Fuchsia

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Fuchsia is changing the semantics for zx_cprng_draw and
zx_cprng_draw_new is a temporary name for the new semantics.
This commit is contained in:
Adam Barth
2018-06-19 09:46:51 -07:00
parent a646c912f7
commit 03a40b31a7
1 changed files with 3 additions and 4 deletions
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7
src/libstd/sys/unix/rand.rs
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@@ -183,15 +183,14 @@ mod imp {
mod imp { mod imp {
#[link(name = "zircon")] #[link(name = "zircon")]
extern { extern {
fn zx_cprng_draw(buffer: *mut u8, len: usize, actual: *mut usize) -> i32; fn zx_cprng_draw_new(buffer: *mut u8, len: usize) -> i32;
} }
fn getrandom(buf: &mut [u8]) -> Result<usize, i32> { fn getrandom(buf: &mut [u8]) -> Result<usize, i32> {
unsafe { unsafe {
let mut actual = 0; let status = zx_cprng_draw_new(buf.as_mut_ptr(), buf.len());
let status = zx_cprng_draw(buf.as_mut_ptr(), buf.len(), &mut actual);
if status == 0 { if status == 0 {
Ok(actual) Ok(buf.len())
} else { } else {
Err(status) Err(status)
} }