tests/chmod/setgid.sh

   1 #!/bin/sh
   2 # Make sure GNU chmod works the same way as those of Solaris, HPUX, AIX
   3 # on directories with the setgid bit set.  Also, check that the GNU octal
   4 # notations work.
   5
   6 # Copyright (C) 2001-2024 Free Software Foundation, Inc.
   7
   8 # This program is free software: you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation, either version 3 of the License, or
  11 # (at your option) any later version.
  12
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  20
  21 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  22 print_ver_ chmod
  23
  24 umask 0
  25 mkdir -m 755 d || framework_failure_
  26
  27 # "chmod g+s d" does nothing on some NFS file systems.
  28 chmod g+s d 2> /dev/null && env -- test -g d ||
  29   {
  30     # This is required because on some systems (at least NetBSD 1.4.2A),
  31     # it may happen that when you create a directory, its group isn't one
  32     # to which you belong.  When that happens, the above chmod fails.  So
  33     # here, upon failure, we try to set the group, then rerun the chmod command.
  34
  35     for id_g in $(id -g) $(id -G) ''; do
  36       test -n "$id_g" || break
  37       chgrp "$id_g" d && chmod g+s d && env -- test -g d && break
  38     done
  39     test -n "$id_g"
  40   } ||
  41   skip_ 'cannot create setgid directories'
  42
  43 for mode in \
  44   + - g-s 00755 000755 =755 -2000 -7022 755 0755 \
  45   +2000 -5022 =7777,-5022
  46 do
  47   chmod $mode d || fail=1
  48
  49   case $mode in
  50     g-s | 00*755 | =755 | -2000 | -7022)
  51        expected_mode=drwxr-xr-x ;;
  52     *) expected_mode=drwxr-sr-x ;;
  53   esac
  54   ls_output=$(ls -ld d)
  55   case $ls_output in
  56     $expected_mode*) ;;
  57     *) fail=1 ;;
  58   esac
  59
  60   chmod =2755 d || fail=1
  61 done
  62
  63 Exit $fail