From 40b33b6b04d81d2c6ca52175a83c31fa1bc91621 Mon Sep 17 00:00:00 2001
From: June McEnroe <june@causal.agency>
Date: Mon, 9 Mar 2020 04:00:31 -0400
Subject: Import /usr/src/bin/sh from FreeBSD 12.1-RELEASE

---
 bin/1sh/tests/builtins/cd4.0 | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 bin/1sh/tests/builtins/cd4.0

(limited to 'bin/1sh/tests/builtins/cd4.0')

diff --git a/bin/1sh/tests/builtins/cd4.0 b/bin/1sh/tests/builtins/cd4.0
new file mode 100644
index 00000000..ba32302e
--- /dev/null
+++ b/bin/1sh/tests/builtins/cd4.0
@@ -0,0 +1,38 @@
+# $FreeBSD: releng/12.1/bin/sh/tests/builtins/cd4.0 222154 2011-05-20 22:55:18Z jilles $
+
+# This test assumes that whatever mechanism cd -P uses to determine the
+# pathname to the current directory if it is longer than PATH_MAX requires
+# read permission on all parent directories. It also works if this
+# requirement always applies.
+
+set -e
+L=$(getconf PATH_MAX / 2>/dev/null) || L=4096
+[ "$L" -lt 100000 ] 2>/dev/null || L=4096
+L=$((L+100))
+T=$(mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXX)
+trap 'chmod u+r ${T}; rm -rf ${T}' 0
+cd -Pe $T
+D=$(pwd)
+chmod u-r "$D"
+if [ -r "$D" ]; then
+	# Running as root, cannot test.
+	exit 0
+fi
+set +e
+while [ ${#D} -lt $L ]; do
+	mkdir veryverylongdirectoryname || exit
+	cd -Pe veryverylongdirectoryname 2>/dev/null
+	r=$?
+	[ $r -gt 1 ] && exit $r
+	if [ $r -eq 1 ]; then
+		# Verify that the directory was changed correctly.
+		cd -Pe .. || exit
+		[ "$(pwd)" = "$D" ] || exit
+		# Verify that omitting -e results in success.
+		cd -P veryverylongdirectoryname 2>/dev/null || exit
+		exit 0
+	fi
+	D=$D/veryverylongdirectoryname
+done
+echo "cd -Pe never returned 1"
+exit 0
-- 
cgit 1.4.1