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) 2001-2019 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 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  22 print_ver_ chmod
  23
  24 umask 0
  25 mkdir -m 755 d || framework_failure_
  26
  27 chmod g+s d 2> /dev/null && env -- test -g d ||
  28   {
  29     # This is required because on some systems (at least NetBSD 1.4.2A),
  30     # it may happen that when you create a directory, its group isn't one
  31     # to which you belong.  When that happens, the above chmod fails.  So
  32     # here, upon failure, we try to set the group, then rerun the chmod command.
  33
  34     id_g=$(id -g) &&
  35     test -n "$id_g" &&
  36     chgrp "$id_g" d &&
  37     chmod g+s d || framework_failure_
  38   }
  39
  40 # "chmod g+s d" does nothing on some NFS file systems.
  41 env -- test -g d ||
  42   skip_ 'cannot create setgid directories'
  43
  44 for mode in \
  45   + - g-s 00755 000755 =755 -2000 -7022 755 0755 \
  46   +2000 -5022 =7777,-5022
  47 do
  48   chmod $mode d || fail=1
  49
  50   case $mode in
  51     g-s | 00*755 | =755 | -2000 | -7022)
  52        expected_mode=drwxr-xr-x ;;
  53     *) expected_mode=drwxr-sr-x ;;
  54   esac
  55   ls_output=$(ls -ld d)
  56   case $ls_output in
  57     $expected_mode*) ;;
  58     *) fail=1 ;;
  59   esac
  60
  61   chmod =2755 d || fail=1
  62 done
  63
  64 Exit $fail