From 87bae740949ff1b91e774de99ba5c96e5258153d Mon Sep 17 00:00:00 2001
From: DaniPopes <57450786+DaniPopes@users.noreply.github.com>
Date: Tue, 3 Feb 2026 21:16:32 +0100
Subject: [PATCH] chore: decode MDBX error code (#21766)

---
 crates/storage/libmdbx-rs/src/error.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/crates/storage/libmdbx-rs/src/error.rs b/crates/storage/libmdbx-rs/src/error.rs
index 007d828af2..b395dc4836 100644
--- a/crates/storage/libmdbx-rs/src/error.rs
+++ b/crates/storage/libmdbx-rs/src/error.rs
@@ -133,7 +133,7 @@ pub enum Error {
     #[error("permission denied to setup database")]
     Permission,
     /// Unknown error code.
-    #[error("unknown error code: {0}")]
+    #[error("{}", Error::fmt_other(*.0))]
     Other(i32),
 }
 
@@ -215,6 +215,13 @@ impl Error {
             Self::Other(err_code) => *err_code,
         }
     }
+
+    fn fmt_other(code: i32) -> String {
+        let mut s = String::with_capacity(1024);
+        let desc = unsafe { ffi::mdbx_strerror_r(code, s.as_mut_ptr().cast(), 1024) };
+        let desc = unsafe { std::ffi::CStr::from_ptr(desc) }.to_string_lossy();
+        desc.into_owned()
+    }
 }
 
 impl From<Error> for i32 {