1 files changed, 64 insertions, 0 deletions
diff --git a/tests/chmod/setgid.sh b/tests/chmod/setgid.sh
new file mode 100755
index 0000000..fdeb343
--- /dev/null
+++ b/tests/chmod/setgid.sh
@@ -0,0 +1,64 @@
+#!/bin/sh
+# Make sure GNU chmod works the same way as those of Solaris, HPUX, AIX
+# on directories with the setgid bit set.  Also, check that the GNU octal
+# notations work.
+
+# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+
+# 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 <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ chmod
+
+umask 0
+mkdir -m 755 d || framework_failure_
+
+chmod g+s d 2> /dev/null && env -- test -g d ||
+  {
+    # This is required because on some systems (at least NetBSD 1.4.2A),
+    # it may happen that when you create a directory, its group isn't one
+    # to which you belong.  When that happens, the above chmod fails.  So
+    # here, upon failure, we try to set the group, then rerun the chmod command.
+
+    id_g=$(id -g) &&
+    test -n "$id_g" &&
+    chgrp "$id_g" d &&
+    chmod g+s d || framework_failure_
+  }
+
+# "chmod g+s d" does nothing on some NFS file systems.
+env -- test -g d ||
+  skip_ 'cannot create setgid directories'
+
+for mode in \
+  + - g-s 00755 000755 =755 -2000 -7022 755 0755 \
+  +2000 -5022 =7777,-5022
+do
+  chmod $mode d || fail=1
+
+  case $mode in
+    g-s | 00*755 | =755 | -2000 | -7022)
+       expected_mode=drwxr-xr-x ;;
+    *) expected_mode=drwxr-sr-x ;;
+  esac
+  ls_output=$(ls -ld d)
+  case $ls_output in
+    $expected_mode*) ;;
+    *) fail=1 ;;
+  esac
+
+  chmod =2755 d || fail=1
+done
+
+Exit $fail