From 188d44dd6e4949606e31c8009dffa4773ea25214 Mon Sep 17 00:00:00 2001
From: 0x79de <0x79de@gmail.com>
Date: Mon, 14 Apr 2025 21:25:48 +0300
Subject: [PATCH] Fix: Map EOPNOTSUPP to ErrorKind::Unsupported on Unix

This change maps the EOPNOTSUPP errno value (95) to std::io::ErrorKind::Unsupported in the decode_error_kind function for Unix platforms. Previously, it was incorrectly mapped to ErrorKind::Uncategorized.

Fixes #139803
---
 library/std/src/sys/pal/unix/mod.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/library/std/src/sys/pal/unix/mod.rs b/library/std/src/sys/pal/unix/mod.rs
index f8733eb611986..3a790d9c868c9 100644
--- a/library/std/src/sys/pal/unix/mod.rs
+++ b/library/std/src/sys/pal/unix/mod.rs
@@ -274,6 +274,7 @@ pub fn decode_error_kind(errno: i32) -> ErrorKind {
         libc::ETXTBSY => ExecutableFileBusy,
         libc::EXDEV => CrossesDevices,
         libc::EINPROGRESS => InProgress,
+        libc::EOPNOTSUPP => Unsupported,
 
         libc::EACCES | libc::EPERM => PermissionDenied,