From 3f2f05f06763d79a7cab525a3ea2d726df3e3736 Mon Sep 17 00:00:00 2001 From: Pádraig Brady
Date: Mon, 16 Feb 2015 13:19:20 +0000
Subject: tee: exit early if no more writable outputs
* src/tee.c (main): Don't continue reading if we can't
output anywhere.
* tests/misc/tee.sh: Ensure we exit when no more outputs.
* NEWS: Mention the change in behavior.
---
tests/misc/tee.sh | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
(limited to 'tests')
diff --git a/tests/misc/tee.sh b/tests/misc/tee.sh
index 3c3fd11d7..5f2eeda7b 100755
--- a/tests/misc/tee.sh
+++ b/tests/misc/tee.sh
@@ -31,4 +31,29 @@ for n in 0 $nums; do
done
done
+
+# Ensure tee exits early if no more writable outputs
+if test -w /dev/full && test -c /dev/full; then
+ yes | returns_ 1 timeout 10 tee /dev/full 2>err >/dev/full || fail=1
+ # Ensure an error for each of the 2 outputs
+ # (and no redundant errors for stdout).
+ test $(wc -l < err) = 2 || { cat err; fail=1; }
+
+
+ # Ensure we continue with outputs that are OK
+ seq 10000 > multi_read || framework_failure_
+
+ returns_ 1 tee /dev/full out2 2>err >out1