tests/chmod/setgid

   1 #!/bin/sh
   2 # Make sure GNU chmod works the same way as those of Solaris, HPUX, AIX
   3 # wrt directories with the setgid bit set.
   4
   5 if test "$VERBOSE" = yes; then
   6   set -x
   7   chmod --version
   8 fi
   9
  10 . $srcdir/../envvar-check
  11 . $srcdir/../lang-default
  12
  13 pwd=`pwd`
  14 tmp=setgid.$$
  15 trap 'status=$?; cd $pwd; rm -rf $tmp && exit $status' 0
  16 trap '(exit $?); exit' 1 2 13 15
  17
  18 framework_failure=0
  19
  20 # Record absolute path of srcdir and cd back to current dir.
  21 cd $srcdir || framework_failure=1
  22 abs_srcdir=`pwd`
  23 cd $pwd || framework_failure=1
  24
  25 mkdir $tmp || framework_failure=1
  26 cd $tmp || framework_failure=1
  27
  28 . $abs_srcdir/../setgid-check
  29
  30 umask 0
  31 mkdir d || framework_failure=1
  32
  33 chmod g+s d 2> /dev/null ||
  34   {
  35     # This is required because on some systems (at least  NetBSD 1.4.2A),
  36     # it may happen that when you create a directory, its group isn't one
  37     # to which you belong.  When that happens, the above chmod fails.  So
  38     # here, upon failure, we try to set the group, then rerun the chmod command.
  39     group=${FETISH_GROUP-`(id -ng || /usr/xpg4/bin/id -ng) 2>/dev/null`}
  40     if test "$group"; then
  41       chgrp "$group" d || framework_failure=1
  42       chmod g+s d || framework_failure=1
  43     else
  44       framework_failure=1
  45     fi
  46   }
  47
  48 if test $framework_failure = 1; then
  49   echo 'failure in testing framework' 1>&2
  50   (exit 1); exit
  51 fi
  52
  53 fail=0
  54
  55 chmod 755 d
  56
  57 # To be compatible with chmod from other vendors,
  58 # GNU chmod must not reset a directory's setgid bit.
  59 # The latest POSIX draft (d5) allows either behavior.  It says:
  60 #
  61 #   For regular files, for each bit set in the octal number
  62 #   corresponding to the set-user-ID-on-execution or the
  63 #   set-group-ID-on-execution, bits shown in the following table shall
  64 #   be set; if these bits are not set in the octal number, they are
  65 #   cleared. For other file types, it is implementation-defined whether
  66 #   or not requests to set or clear the set-user-ID-on-execution or
  67 #   set-group-ID-on-execution bits are honored.
  68
  69 # FIXME: consider changing GNU chmod to work like other versions of chmod.
  70 # For now, this test simply confirms the existing behavior.
  71 p=`ls -ld d|sed 's/ .*//'`; case $p in drwxr-xr-x);; *) fail=1;; esac
  72
  73 (exit $fail); exit