From 67104ee34a83047745d64d5b61d4594911947e1f Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sun, 12 Jan 2025 16:44:26 +0100
Subject: [PATCH] hurd: Fix CMSG_DATA on 64bit systems

This was fixed upstream glibc in

https://sourceware.org/git/?p=glibc.git;a=patch;h=cf13f740a91b5bbf6bb60a30b45c2a3933ff1259
---
 src/unix/hurd/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/unix/hurd/mod.rs b/src/unix/hurd/mod.rs
index 7c8018da09dc..8ded234641a9 100644
--- a/src/unix/hurd/mod.rs
+++ b/src/unix/hurd/mod.rs
@@ -3449,7 +3449,7 @@ f! {
     }
 
     pub fn CMSG_DATA(cmsg: *const cmsghdr) -> *mut c_uchar {
-        cmsg.offset(1) as *mut c_uchar
+        (cmsg as *mut c_uchar).offset(CMSG_ALIGN(mem::size_of::<cmsghdr>()) as isize)
     }
 
     pub {const} fn CMSG_SPACE(length: c_uint) -> c_uint {