From e8fc7b90f0a87302b12c73009950c7f9af473e92 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 | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/uu/ls/src/config.rs b/src/uu/ls/src/config.rs
index fc788e85425..5db65fed7ff 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,
 };
 
@@ -574,12 +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!(
+            if let Some(pair) = match_quoting_style_name(style.as_str(), show_control) {
+                return pair;
+            } else {
+                let _ = writeln!(
+                    io::stderr(),
                     "{}",
                     translate!("ls-invalid-quoting-style", "program" => std::env::args().next().unwrap_or_else(|| "ls".to_string()), "style" => style.clone())
-                ),
+                );
             }
         }