From e9f21a123611c1d3dcd26cb407d7eefcf165a770 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=90=D1=80=D1=82=D1=91=D0=BC=20=D0=9F=D0=B0=D0=B2=D0=BB?=
 =?UTF-8?q?=D0=BE=D0=B2=20=5BArtyom=20Pavlov=5D?= <newpavlov@gmail.com>
Date: Wed, 9 Oct 2024 18:30:34 +0300
Subject: [PATCH] fix netbsd

---
 src/netbsd.rs | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/src/netbsd.rs b/src/netbsd.rs
index 2842617b..2449b057 100644
--- a/src/netbsd.rs
+++ b/src/netbsd.rs
@@ -20,25 +20,17 @@ unsafe extern "C" fn polyfill_using_kern_arand(
     debug_assert_eq!(flags, 0);
 
     static MIB: [libc::c_int; 2] = [libc::CTL_KERN, libc::KERN_ARND];
+    const MIB_LEN: libc::c_uint = MIB.len() as libc::c_uint;
 
     // NetBSD will only return up to 256 bytes at a time, and
     // older NetBSD kernels will fail on longer buffers.
     let mut len = cmp::min(buflen, 256);
 
-    let ret = unsafe {
-        libc::sysctl(
-            MIB.as_ptr(),
-            MIB.len() as libc::c_uint,
-            buf,
-            &mut len,
-            ptr::null(),
-            0,
-        )
-    };
+    let ret = unsafe { libc::sysctl(MIB.as_ptr(), MIB_LEN, buf, &mut len, ptr::null(), 0) };
     if ret == -1 {
         -1
     } else {
-        len as libc::ssize_t
+        libc::ssize_t::try_from(len).expect("len is bounded by 256")
     }
 }