135 lines
3.5 KiB
Rust
135 lines
3.5 KiB
Rust
cfg_select! {
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// Tier 1
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any(target_os = "linux", target_os = "android") => {
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mod linux;
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pub use linux::{fill_bytes, hashmap_random_keys};
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}
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target_os = "windows" => {
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mod windows;
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pub use windows::fill_bytes;
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}
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target_vendor = "apple" => {
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mod apple;
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pub use apple::fill_bytes;
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// Others, in alphabetical ordering.
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}
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any(
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target_os = "dragonfly",
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target_os = "freebsd",
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target_os = "haiku",
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target_os = "illumos",
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target_os = "netbsd",
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target_os = "openbsd",
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target_os = "rtems",
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target_os = "solaris",
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target_os = "vita",
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target_os = "nuttx",
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) => {
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mod arc4random;
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pub use arc4random::fill_bytes;
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}
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target_os = "emscripten" => {
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mod getentropy;
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pub use getentropy::fill_bytes;
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}
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target_os = "espidf" => {
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mod espidf;
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pub use espidf::fill_bytes;
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}
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target_os = "fuchsia" => {
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mod fuchsia;
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pub use fuchsia::fill_bytes;
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}
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target_os = "hermit" => {
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mod hermit;
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pub use hermit::fill_bytes;
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}
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any(target_os = "horizon", target_os = "cygwin") => {
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// FIXME(horizon): add arc4random_buf to shim-3ds
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mod getrandom;
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pub use getrandom::fill_bytes;
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}
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any(
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target_os = "aix",
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target_os = "hurd",
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target_os = "l4re",
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target_os = "nto",
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) => {
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mod unix_legacy;
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pub use unix_legacy::fill_bytes;
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}
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target_os = "redox" => {
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mod redox;
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pub use redox::fill_bytes;
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}
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target_os = "motor" => {
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mod motor;
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pub use motor::fill_bytes;
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}
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all(target_vendor = "fortanix", target_env = "sgx") => {
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mod sgx;
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pub use sgx::fill_bytes;
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}
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target_os = "solid_asp3" => {
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mod solid;
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pub use solid::fill_bytes;
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}
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target_os = "teeos" => {
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mod teeos;
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pub use teeos::fill_bytes;
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}
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target_os = "trusty" => {
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mod trusty;
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pub use trusty::fill_bytes;
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}
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target_os = "uefi" => {
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mod uefi;
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pub use uefi::fill_bytes;
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}
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target_os = "vxworks" => {
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mod vxworks;
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pub use vxworks::fill_bytes;
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}
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all(target_os = "wasi", target_env = "p1") => {
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mod wasip1;
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pub use wasip1::fill_bytes;
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}
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all(target_os = "wasi", any(target_env = "p2", target_env = "p3")) => {
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mod wasip2;
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pub use wasip2::{fill_bytes, hashmap_random_keys};
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}
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target_os = "zkvm" => {
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mod zkvm;
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pub use zkvm::fill_bytes;
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}
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any(
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all(target_family = "wasm", target_os = "unknown"),
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target_os = "xous",
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target_os = "vexos",
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target_os = "survos",
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) => {
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// FIXME: finally remove std support for wasm32-unknown-unknown
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// FIXME: add random data generation to xous
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mod unsupported;
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pub use unsupported::{fill_bytes, hashmap_random_keys};
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}
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_ => {}
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}
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#[cfg(not(any(
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target_os = "linux",
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target_os = "android",
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all(target_family = "wasm", target_os = "unknown"),
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all(target_os = "wasi", not(target_env = "p1")),
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target_os = "xous",
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target_os = "vexos",
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target_os = "survos",
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)))]
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pub fn hashmap_random_keys() -> (u64, u64) {
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let mut buf = [0; 16];
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fill_bytes(&mut buf);
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let k1 = u64::from_ne_bytes(buf[..8].try_into().unwrap());
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let k2 = u64::from_ne_bytes(buf[8..].try_into().unwrap());
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(k1, k2)
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}
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