From 05daaf5a49fb829a10900caf005ac7250a9964e1 Mon Sep 17 00:00:00 2001
From: oech3 <79379754+oech3@users.noreply.github.com>
Date: Mon, 29 Jun 2026 22:50:52 +0900
Subject: [PATCH] ls: fix QUOTING_STYLE=invalid ls 2>/dev/full SIGABRT

---
 src/uu/ls/src/config.rs | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/uu/ls/src/config.rs b/src/uu/ls/src/config.rs
index fc788e85425..a87d53ef62d 100644
--- a/src/uu/ls/src/config.rs
+++ b/src/uu/ls/src/config.rs
@@ -9,7 +9,7 @@
 use std::{
     borrow::Cow,
     ffi::{OsStr, OsString},
-    io::{IsTerminal, stdout},
+    io::{self, IsTerminal, Write as _, stdout},
     num::IntErrorKind,
 };
 
@@ -574,13 +574,14 @@ fn extract_quoting_style(
     } else {
         // If set, the QUOTING_STYLE environment variable specifies a default style.
         if let Ok(style) = std::env::var("QUOTING_STYLE") {
-            match match_quoting_style_name(style.as_str(), show_control) {
-                Some(pair) => return pair,
-                None => eprintln!(
-                    "{}",
-                    translate!("ls-invalid-quoting-style", "program" => std::env::args().next().unwrap_or_else(|| "ls".to_string()), "style" => style.clone())
-                ),
+            if let Some(pair) = match_quoting_style_name(style.as_str(), show_control) {
+                return pair;
             }
+            let _ = writeln!(
+                io::stderr(),
+                "{}",
+                translate!("ls-invalid-quoting-style", "program" => std::env::args().next().unwrap_or_else(|| "ls".to_string()), "style" => style.clone())
+            );
         }
 
         // By default, `ls` uses Shell escape quoting style when writing to a terminal file