global: renames + refactor + p2a support

crates/brk_core/src/utils/bytes.rs

@@ -0,0 +1,12 @@
+#[allow(clippy::result_unit_err)]
+pub fn copy_first_8bytes(slice: &[u8]) -> Result<[u8; 8], ()> {
+    let mut buf: [u8; 8] = [0; 8];
+    let buf_len = buf.len();
+    if slice.len() < buf_len {
+        return Err(());
+    }
+    slice.iter().take(buf_len).enumerate().for_each(|(i, r)| {
+        buf[i] = *r;
+    });
+    Ok(buf)
+}

crates/brk_core/src/utils/mod.rs

@@ -1,8 +1,10 @@
+mod bytes;
 mod checked_sub;
 mod paths;
 mod pause;
 mod rlimit;
 
+pub use bytes::*;
 pub use checked_sub::*;
 pub use paths::*;
 pub use pause::*;