From 10ea2923a9fe5afef85fcfda5e0a208019f26e6e Mon Sep 17 00:00:00 2001
From: Jilles Tjoelker <jilles@FreeBSD.org>
Date: Fri, 3 Sep 2010 21:17:33 +0000
Subject: [PATCH] sh: Add a test that 'read' leaves the file pointer at the
 correct place.

Naive buffering would break the common while read x... construct, which did
not appear to be tested yet.
---
 tools/regression/bin/sh/builtins/read2.0 | 31 ++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 tools/regression/bin/sh/builtins/read2.0

diff --git a/tools/regression/bin/sh/builtins/read2.0 b/tools/regression/bin/sh/builtins/read2.0
new file mode 100644
index 000000000000..fc7451191586
--- /dev/null
+++ b/tools/regression/bin/sh/builtins/read2.0
@@ -0,0 +1,31 @@
+# $FreeBSD$
+
+set -e
+{
+	echo 1
+	echo two
+	echo three
+} | {
+	read x
+	[ "$x" = 1 ]
+	(read x
+	[ "$x" = two ])
+	read x
+	[ "$x" = three ]
+}
+
+T=`mktemp sh-test.XXXXXX`
+trap 'rm -f "$T"' 0
+{
+	echo 1
+	echo two
+	echo three
+} >$T
+{
+	read x
+	[ "$x" = 1 ]
+	(read x
+	[ "$x" = two ])
+	read x
+	[ "$x" = three ]
+} <$T