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rand: freebsd update, using getrandom.

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supported since the 12th release, while 11.4 is EOL since 2021.
This commit is contained in:
David CARLIER 2022-09-18 20:23:32 +01:00 committed by David Carlier
parent 7c306f6dcd
commit a7e0bab76b
1 changed files with 18 additions and 4 deletions
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22
library/std/src/sys/unix/rand.rs
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@ -16,7 +16,6 @@ pub fn hashmap_random_keys() -> (u64, u64) {
not(target_os = "ios"),
not(target_os = "watchos"),
not(target_os = "openbsd"),
not(target_os = "freebsd"),
not(target_os = "netbsd"),
not(target_os = "fuchsia"),
not(target_os = "redox"),
@ -65,11 +64,25 @@ mod imp {
unsafe { libc::getrandom(buf.as_mut_ptr().cast(), buf.len(), 0) }
}
#[cfg(target_os = "freebsd")]
fn getrandom(buf: &mut [u8]) -> libc::ssize_t {
// FIXME: using the above when libary std's libc is updated
extern "C" {
fn getrandom(
buffer: *mut libc::c_void,
length: libc::size_t,
flags: libc::c_uint,
) -> libc::ssize_t;
}
unsafe { getrandom(buf.as_mut_ptr().cast(), buf.len(), 0) }
}
#[cfg(not(any(
target_os = "linux",
target_os = "android",
target_os = "espidf",
target_os = "horizon"
target_os = "horizon",
target_os = "freebsd"
)))]
fn getrandom_fill_bytes(_buf: &mut [u8]) -> bool {
false
@ -79,7 +92,8 @@ mod imp {
target_os = "linux",
target_os = "android",
target_os = "espidf",
target_os = "horizon"
target_os = "horizon",
target_os = "freebsd"
))]
fn getrandom_fill_bytes(v: &mut [u8]) -> bool {
use crate::sync::atomic::{AtomicBool, Ordering};
@ -219,7 +233,7 @@ mod imp {
}
}
#[cfg(any(target_os = "freebsd", target_os = "netbsd"))]
#[cfg(target_os = "netbsd")]
mod imp {
use crate::ptr;