Adding upstream version 5.2.37.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

tests/rsh.tests

@@ -0,0 +1,49 @@
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# test restricted shell mode -- these should all be errors
+#
+# things not tested for:
+#	adding builtins dynamically with enable -f
+#	importing function definitions from environment
+
+${THIS_SH} ./rsh1.sub
+${THIS_SH} ./rsh2.sub
+
+set -r
+
+cd /
+PATH=$PATH:/usr/local/bin
+SHELL=/bin/sh
+/bin/sh -c 'echo /bin/sh executed'
+
+. ./source.sub3
+
+rm -f /tmp/restricted
+echo abc > /tmp/restricted
+if [ -f /tmp/restricted ]; then
+	echo oops 1 -- output
+fi
+echo abc >> /tmp/restricted
+if [ -f /tmp/restricted ]; then
+	echo oops 2 -- append
+fi
+
+command -p date
+
+set +r
+set +o restricted
+
+exec /bin/date
+
+echo $0: after exec