Commit Graph

258 Commits

Author SHA1 Message Date
fad1c3a8e0 white space 2002-07-01 02:36:04 +00:00
c6d90e842c * security.cc (extract_nt_dom_user): Check for all buffer overflows.
Call LookupAccountSid after trying to get domain & user from passwd.
	(get_group_sidlist): Obtain the domain and user by calling
	extract_nt_dom_user instead of LookupAccountSid.
2002-06-30 13:08:59 +00:00
de0557f7a3 * security.cc (get_group_sidlist): Add pw argument and use pw->pw_name in call
to get_supplementary_group_sidlist.
(create_token): Add pw argument and use it in call to get_group_sidlist.
* security.h: Add pw argument in declaration of create_token.
* syscalls.cc (seteuid32): Add pw argument in call to create_token.
2002-06-24 13:01:50 +00:00
49056987f1 * security.cc (alloc_sd): Carefully check owner_sid again after trying
SIDs from cygheap.
2002-06-21 12:57:19 +00:00
dd0208eb34 * security.cc (alloc_sd): Remove unnecessary retrieval of owner name.
Check uid for current user first and use SIDs from cygheap if so.
	Set errno to EINVAL if user SID isn't retrievable.  Just print user SID
	as debug output.
	Don't bail out if group SID isn't retrievable.  Change debug output
	appropriately.
2002-06-21 12:37:51 +00:00
7c02f861e3 * uinfo.cc (cygheap_user::ontherange): Use env_name for NetUserGetInfo.
(cygheap_user::env_logsrv): Verify env_domain is valid.
* environ.cc: Include child_info.h and keep spenvs[] sorted.
(environ_init): Check child_proc_info instead of myself->ppid_handle.
2002-06-21 05:01:17 +00:00
03a2ce9a36 Use hMainProc where appropriate, throughout.
* environ.cc (spenv::retrieve): Add debugging statements.
* pinfo.cc (set_myself): Don't call strace.hello if already stracing.
* strace.cc (strace): Move NO_COPY keyword so that it will actually take
effect.
2002-06-19 15:27:27 +00:00
5f74ae83e5 * security.cc (get_logon_server): Use strcasematch rather than strcasecmp. 2002-06-13 05:30:49 +00:00
380aaf2d2c * Makefile.in: Ensure that -MD gets added to CFLAGS regardless of CFLAGS
command-line setting.
* cygwin.din: Export sexec* functions as function which returns ENOSYS
(i.e., sexec* is deprecated).
* dtable.cc (dtable::vfork_child_dup): Ensure that impersonation is restored
even on failure.
* exec.cc: Throughout, remove references to sexec* and _spawnve.
* pinfo.h: Remove _spawnve declaration.
* spawn.cc: Rename _spawnve to spawnve and use throughout.
(spawn_guts): Eliminate hToken argument and processing of same.  Just perform
special actions if impersonating.
(spawnve): Rename from _spawnve.
2002-06-11 02:08:00 +00:00
2e8abfc1c5 * sec_helper.cc (lookup_name): Suppress.
* security.cc (alloc_sd): Remove logsrv argument.
	Remove two calls to lookup_name.
	(set_security_attribute): Remove logsrv argument.
	Remove logsrv argument in call to alloc_sd.
	(set_nt_attribute): Remove logsrv argument.
	Remove logsrv argument in call to set_security_attribute.
	(set_file_attribute): Remove logsrv argument.
	Remove logsrv argument in call to set_nt_attribute.
	(set_file_attribute): Remove logsrv argument.
	Remove logsrv argument in call to set_file_attribute.
	* syscalls.cc (chown_worker): Remove logserver argument in
	call to set_file_attribute.
	(chmod): Ditto.
	* shm.cc (shmget): Remove logsrv argument in call to alloc_sd.
	* uinfo.cc (internal_getlogin): Replace calls to
	lookup_name by call to LookupAccountName.
	* security.h: Remove logsrv in declarations of set_file_attribute
	and alloc_sd. Remove declaration of lookup_name.
2002-06-06 11:17:51 +00:00
1eb934b7c5 * security.cc (lsa2wchar): Suppressed.
(get_lsa_srv_inf): Suppressed.
	(get_logon_server_and_user_domain): Suppressed.
	(get_logon_server): Essentially new.
	(get_user_groups): Add "domain" argument. Only lookup the
	designated server and use "domain" in LookupAccountName.
	(is_group_member): Simplify the arguments.
	(get_user_local_groups): Simplify the arguments. Do only a
	local lookup. Use "BUILTIN" and local domain in LookupAccountName.
	(get_user_primary_group). Only lookup the designated server.
	(get_group_sidlist): Remove logonserver argument. Do not lookup
	any server for the SYSTEM account.
	(create_token): Delete logonserver and call to get_logon_server.
	Adjust arguments of get_group_sidlist, see above.
	* security.h: Delete declaration of get_logon_server_and_user_domain
	and add declaration of get_logon_server.
	* uinfo.cc (internal_get_login): Call get_logon_server instead of
	get_logon_server_and_user_domain.
2002-06-03 17:04:03 +00:00
6b7cd251c7 Remove unneeded sigproc.h includes throughout.
* fhandler.h (fhandler_proc::fill_filebuf): Take a pinfo argument.
* fhandler_proc.cc (fhandler_proc::get_proc_fhandler): Simplify search for
given pid.
(fhandler_proc::readdir): Assume that pid exists if it shows up in the winpid
list.
* fhandler_process.cc (fhandler_process::open): Simplify search for given pid.
Call fill_filebuf with pinfo argument.
(fhandler_process::fill_filebuf): Pass pinfo here and assume that it exists.
* pinfo.h (pinfo::remember): Define differently if sigproc.h is not included.
* dll_init.cc (dll_list::detach): Don't run destructor on exit.
2002-06-02 06:07:01 +00:00
a8d7ae61e7 Change internal uid datatype from __uid16_t to __uid32_t
throughout.
	* cygwin.din: Export new symbols getpwuid32, getpwuid_r32, getuid32,
	geteuid32, setuid32, seteuid32.
	* passwd.cc (getpwuid32): New function.
	(getpwuid_r32): Ditto.
	* syscalls.cc (seteuid32): Ditto.
	(setuid32): Ditto.
	* uinfo.cc (getuid32): Ditto.
	(geteuid32): Ditto.
	* winsup.h (uid16touid32): New macro, correclt casting from __uid16_t
	to __uid32_t.
	(gid16togid32): Ditto fir gids.
	(getuid32): Declare.
	(geteuid32): Ditto.
	(getpwuid32): Ditto.
	* include/sys/cygwin.h (struct external_pinfo): Add members uid32 and
	gid32.
2002-05-29 15:04:29 +00:00
7ea70e9970 * security.cc (set_security_attribute): Call getegid32() instead of
getegid().
	* include/cygwin/grp.h: Declare getegid32().
2002-05-28 14:58:13 +00:00
5719640581 Change internal gid datatype from __gid16_t to __gid32_t
throughout.
	* cygwin.din: Export new symbols chown32, fchown32, getegid32,
	getgid32, getgrgid32, getgrnam32, getgroups32, initgroups32, lchown32,
	setgid32, setegid32, getgrent32.
	* grp.cc (grp32togrp16): New static function.
	(getgrgid32): New function.
	(getgrnam32): Ditto.
	(getgrent32): Ditto.
	(getgroups32): Change name of internal function from getgroups.
	(getgroups32): New function.
	(initgroups32): Ditto.
	* syscalls.cc (chown32): Ditto.
	(lchown32): Ditto.
	(fchown32): Ditto.
	(setegid32): Ditto.
	(setgid32): Ditto.
	* uinfo.cc (getgid32): Ditto.
	(getegid32): Ditto.
	* include/cygwin/grp.h: Remove declaration of getgrgid() and getgrnam().
	Declare getgrgid32() and getgrnam32() instead.  Declare getgid32().
2002-05-28 14:10:55 +00:00
2402700d07 * autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro.
(LoadFuncEx2): Adapted from LoadFuncEx.  Provides control of return value for
nonexistent function.
(NtQueryObject): Declare.
(IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not
available.
* debug.h (being_debugged): Just rely on IsDebuggerPresent return value.
* dtable.cc (handle_to_fn): New function.
(dtable::init_std_file_from_handle): Attempt to derive std handle's name via
handle_to_fn.
(dtable::build_fhandler_from_name): Fill in what we can in path_conv structure
when given a handle and path doesn't exist.
* fhandler.cc (fhandler_base::open): Don't set the file pointer here.  Use
pc->exists () to determine if file exists rather than calling GetFileAttributes
again.
* fhandler.h (fhandler_base::exec_state_isknown): New method.
(fhandler_base::fstat_helper): Add extra arguments to declaration.
(fhandler_base::fstat_by_handle): Declare new method.
(fhandler_base::fstat_by_name): Declare new method.
* fhandler_disk_file (num_entries): Make __stdcall.
(fhandler_base::fstat_by_handle): Define new method.
(fhandler_base::fstat_by_name): Define new method.
(fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate.
(fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat
structure.  Move handle or name specific stuff to new methods above.
(fhandler_disk_file::open): Use real_path->exists rather than calling
GetFileAttributes again.
* ntdll.h (FILE_NAME_INFORMATION): Define new structure.
(OBJECT_INFORMATION_CLASS): Partially define new enum.
(OBJECT_NAME_INFORMATION): Define new structure.
(NtQueryInformationFile): New declaration.
(NtQueryObject): New declaration.
* path.cc (path_conv::fillin): Define new method.
* path.h (path_conv::fillin): Declare new method.
(path_conv::drive_thpe): Rename from 'get_drive_type'.
(path_conv::volser): Declare new method.
(path_conv::volname): Declare new method.
(path_conv::root_dir): Declare new method.
* syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
2002-05-28 01:55:40 +00:00
74b2f73ea4 * security.cc (lsa2str): New function.
(get_priv_list): Call lsa2str instead of sys_wcstombs.
2002-05-27 11:58:49 +00:00
d7b4a30001 Remove unneeded sync.h, where appropriate, throughout. Remove unneeded heap.h,
where appropriate, throughout.  Remove unneeded exceptions.h, where
appropriate, throughout.  Remove unneeded perprocess.h, where appropriate,
throughout.
2002-05-25 02:22:50 +00:00
908f9b653b * security.cc (create_token): Call __sec_user() instead of
sec_user() to remove dependence on allow_ntsec. Verify that
	the returned sd is non-null.
2002-05-24 14:44:05 +00:00
2d6ce5c228 * security.cc (open_local_policy): Initialize lsa to
INVALID_HANDLE_VALUE instead of NULL.
	(get_logon_server_and_user_domain): Test for INVALID_HANDLE_VALUE
	instead of NULL.
	(create_token): Both of the above.
2002-05-21 14:50:26 +00:00
d6dc98256c * fhandler_raw.cc (fhandler_dev_raw::open): Replace set_errno()
by __seterrno_from_win_error().
	* security.cc (open_local_policy): Ditto.
	(get_lsa_srv_inf): Ditto.
	(get_user_groups): Ditto.
	(get_user_primary_group): Ditto.
	(create_token): Ditto.
	(subauth): Ditto.
2002-05-17 09:32:45 +00:00
ebbdc7034b * syscalls.cc (seteuid): Set default dacl in process token.
Replace in-line code by call to verify_token().
	(setegid): Reverse change from 2002-01-21. Add call to
	RevertToSelf and set primary group in impersonation token.
	* security.cc (create_token): Store pgrpsid in token security
	descriptor, except if it already appears in my_grps.
	Use sec_acl() in place of get_dacl().
	(verify_token): Create from code in seteuid(), with tighter checks.
	(get_dacl) Deleted.
	(get_group_sidlist): Add argument to indicate if pgrpsid is already
	in the groups.
	* security.h: Define verify_token().
	* autoload.cc: Load GetKernelObjectSecurity().
2002-05-16 09:30:48 +00:00
9b15f5fa95 * security.cc (get_lsa_srv_inf): Prevent extraneous backslashes for
the NT Domain case.
2002-04-18 09:11:54 +00:00
c8c3824dc8 * autoload.cc (NetGetDCName): Add symbol.
(NetServerEnum): Remove symbol.
	* security.cc (get_lsa_srv_inf): Call NetGetDCName() instead of
	NetServerEnum() since it's faster.  Don't call it at all if machine
	is not a domain member.
2002-03-07 14:32:53 +00:00
cecb74ae47 * fork.cc (fork_parent): Use sec_user_nih to control process/thread
inheritance/permission.
* spawn.cc (spawn_guts): Ditto.
* security.cc (create_token): Initialize token so that it is not tested for
bogus value later.  Use sec_user to control process/thread creation.
* security.h (__sec_user): Rename declaration from sec_user.
(sec_user_nih): Declare here as inline function wrapper for __sec_user.
(sec_user): Ditto.
* sigproc.cc (czombies): Allocate a character array for zombies to avoid
constructor overhead
(extremely hackish, I know).
(cpchildren): Ditto.
(pchildren): New define.
(zombies): Ditto.
(getsem): Use sec_user_nih to control semaphore inheritance/permission.
2002-02-19 05:58:44 +00:00
b31c68c447 * child_info.h, cygheap.h, fhandler_clipboard.cc, fhandler_dsp.cc,
fhandler_floppy.cc, fhandler_mem.cc, fhandler_random.cc,
	fhandler_tape.cc, fhandler_zero.cc, grp.cc, mmap.cc, passwd.cc,
	pinfo.cc, pinfo.h, pipe.cc, sec_acl.cc, sec_helper.cc, security.cc,
	security.h, thread.h, uinfo.cc, include/cygwin/acl.h: Fix copyright.
2002-02-10 13:50:13 +00:00
de4e0d3001 * (child_info.h, cygheap.h, dcrt0.cc, dir.cc, fhandler.cc, fhandler.h,
fhandler_clipboard.cc, fhandler_disk_file.cc, fhandler_dsp.cc,
	fhandler_floppy.cc, fhandler_mem.cc, fhandler_random.cc,
	fhandler_tape.cc, fhandler_zero.cc, grp.cc, mmap.cc, passwd.cc,
	pinfo.cc, pinfo.h, pipe.cc, sec_acl.cc, sec_helper.cc, security.cc,
	security.h, spawn.cc, syscalls.cc, thread.h, uinfo.cc, winsup.h):
	Change usage of uid_t to __uid16_t, gid_t to __gid16_t and
	off_t to __off32_t throughout.  Use INVALID_UID, INVALID_GID and
	INVALID_SEEK instead casting -1 to the appropriate type.
	* winsup.h: Define INVALID_UID, INVALID_GID and INVALID_SEEK.
	* include/cygwin/acl.h: Define internal __aclent16_t and __aclent32_t
	types.  Don't declare acl functions when compiling Cygwin.
	* include/cygwin/grp.h: Declare getgrgid() and getgrnam() with
	correct types for internal usage.
2002-02-10 13:38:51 +00:00
f6fc31e1a9 * security.cc (create_token): Use sec_user() to create
SECURITY_ATTRIBUTES structure for primary token.
2002-01-23 18:35:03 +00:00
2d3dab2ea5 * security.cc (create_token): Close processes token handle as soon
as it's not used anymore.
2002-01-19 16:06:11 +00:00
5d3949b064 * security.cc (open_local_policy): Use POLICY_EXECUTE instead of
enumerating user rights.
2001-12-30 17:38:24 +00:00
e37f6c57cd * security.cc (open_local_policy): Initialize lsa handle to NULL.
Request only needed access rights in call to LsaOpenPolicy().
	(create_token): Check for NULL lsa pointer.
2001-12-29 22:03:32 +00:00
9c510edc61 Eliminate excess whitespace. 2001-11-05 06:09:15 +00:00
f41d24a14d * security.cc (get_supplementary_group_sidlist): New function.
(get_group_sidlist): Call get_supplementary_group_sidlist() to
	retrieve list of supplementary groups SIDs from /etc/group and
	add them to the user's group list.
2001-11-03 21:19:50 +00:00
3d4b75dec2 * security.cc (is_group_member): Call NetLocalGroupGetMembers() for
local machine only.
	(get_user_local_groups): Ditto for NetLocalGroupEnum().
2001-10-30 00:02:36 +00:00
990690655c * autoload.cc: Add load statement for `NtOpenFile'.
* fhandler.h (fhandler_dev_raw::get_unit): New method.
	(fhandler_dev_tape::norewind): Eliminate.
	(fhandler_dev_tape::is_rewind_device): New method.
	* fhandler_raw.cc (fhandler_dev_raw::open): Open new
	fixed device name devices using NT internal method.
	Keep calling fhandler_base::open() for old mount table
	device mapping compatibility devices.
	(fhandler_dev_raw::fstat): Eliminate.  Settings are done
	by fhandler_base::fstat() already.
	* fhandler_tape.cc: Remove `norewind' usage throughout.
	* ntdll.h: Define FILE_SYNCHRONOUS_IO_NONALERT.
	Define struct _IO_STATUS_BLOCK.
	Declare NtOpenFile().
	* path.cc (get_raw_device_number): Add new approach for
	using fixed device names.
	(win32_device_name): Ditto.
	(get_device_number): Ditto.  Require POSIX path to begin
	with "/dev/".
	(mount_info::conv_to_win32_path): Call win32_device_name()
	instead of get_device_number() after evaluating mount points
	to allow changing the win32 destination path again.
	* security.cc (str2buf2uni): Remove `static' to be able to
	call function from fhandler_dev_raw::open().
	* wincap.cc: Set flag has_raw_devices appropriately.
	* wincap.h: Add flag has_raw_devices.
2001-10-16 14:53:26 +00:00
ba94682838 * Makefile.in: Build wincap.o.
* wincap.cc: New file.
        * wincap.h: Ditto.
        * autoload.cc: Add dynamic load statement for `CreateHardLinkA'.
        * dcrt0.cc (os_being_run): Eliminated.
        (osname): Ditto.
        (iswinnt): Ditto.
        (set_os_type): Ditto.
        (dll_crt0_1): Call wincap.init() instead of set_os_type().
        (_dll_crt0): Ditto.
        * environ.cc (set_chunksize): New function.
        (parse_thing): `forkchunk' setting now invokes function `set_chunksize'.
        * fork.cc (chunksize): Eliminated. Moved to be member of wincap.
        * host_dependent.h: Removed.
        * syscalls.cc (_link): Try using `CreateHardLinkA' first, if available.
        * cygheap.cc, dcrt0.cc, delqueue.cc, dir.cc,
        environ.cc, fhandler.cc, fhandler.h, fhandler_console.cc,
        fhandler_mem.cc, fork.cc, mmap.cc, net.cc, pinfo.cc, pinfo.h,
        security.cc, syscalls.cc, sysconf.cc, syslog.cc, thread.cc,
        times.cc, tty.cc, uinfo.cc, uname.cc, winsup.h: Use new wincap
        capability check throughout.
        * winsup.h: Include wincap.h. Eliminate extern declarations of
        `os_being_run' and `iswinnt'. Eliminate `os_type" definition.
        * include/cygwin/version.h: Bump version to 1.3.4.
2001-09-12 17:46:37 +00:00
e3c25c4a47 Update copyrights. 2001-09-11 20:01:02 +00:00
1ff9f4b937 * cygheap.h (init_cygheap): Move heap pointers here.
* include/sys/cygwin.h (perprocess): Remove heap pointers.
* dcrt0.cc (__cygwin_user_data): Reflect obsolete perprocess stuff.
(_dll_crt0): Don't initialize heap pointers.
(cygwin_dll_init): Ditto.
(release_upto): Use heap pointers from cygheap.
* heap.h: Ditto.
* fork.cc (fork_parent): Ditto.  Don't set heap pointers in ch.
(fork_child): Remove obsolete sigproc_fixup_after_fork.
* shared.cc (memory_init): Reorganize so that cygheap initialization is called
prior to regular heap since regular heap uses cygheap now.
* sigproc.cc (proc_subproc): Eliminate zombies allocation.
(sigproc_init): Move zombies alloation here.  Don't free up array on fork, just
reuse it.
(sigproc_fixup_after_fork): Eliminate.
* sigproc.h: Ditto.
* include/cygwin/version.h: Reflect change to perprocess structure.
2001-09-07 21:32:07 +00:00
4ce15a4980 * cygheap.h (init_cygheap): Move bucket array here from cygheap.cc.
* cygheap.cc: Throughout use bucket array from cygheap.
* sigproc.cc (proc_subproc): Dynamically allocate zombie buffer to save DLL
space.
(sigproc_fixup_after_fork): Free zombie array after a fork.
* sigproc.h (sigproc_fixup_after_fork): Declare.
* dir.cc (mkdir): Expand buffer for security descriptor to 4K to avoid stack
corruption.
* fhandler.cc (fhandler_base::open): Ditto.
* path.cc (symlink): Ditto.
2001-09-06 03:39:18 +00:00
dc8c4c68b7 * security.cc (create_token): Change initialization of `exp' to comply
with new LARGE_INTEGER definition in winnt.h.
2001-08-31 19:48:34 +00:00
2a9366ff49 * security.cc (set_nt_attribute): Return always -1 in case of
a failure.
        * times.cc (utimes): On NTFS with ntsec ON, change the file's
        security descriptor temporarily to acquire write access if
        opening the file failed.
2001-08-15 10:21:39 +00:00
8c62297ac5 * security.cc (alloc_sd): Revert to setting inheritance attribute for
permissions given to directories. Never set inheritance on NULL ACE.
2001-08-08 10:00:35 +00:00
c0ae23dc47 * security.cc (alloc_sd): Don't set FILE_DELETE_CHILD for group
if S_ISVTX attribute is given.
        * dir.cc (mkdir): Allow immediate setting of S_ISUID, S_ISGID and
        S_ISVTX attribute.
        * syscalls.cc (_open): Ditto.
2001-08-07 16:14:59 +00:00
86fb039324 * dir.cc (mkdir): Set security attributes correctly for
CreateDirectoryA () call if ntsec is on. Don't call
        set_file_attributes () then.
        * fhandler.cc (fhandler_base::open): Ditto for CreateFileA () call.
        * path.cc (symlink): Ditto.
        * security.cc (set_security_attribute): New function.
        * security.h: Add declaration for `allow_ntea' and
        `set_security_attribute'.
2001-08-07 15:09:54 +00:00
e5ba4c060e Throughout, change check for running under Windows NT to 'iswinnt'.
* dcrt0.cc (set_os_type): Set 'iswinnt' appropriately.
* cygheap.cc (init_cheap): Revert to using VirtualAlloc for allocating cygheap.
(cygheap_setup_for_child_cleanup): New function.  Standard function to call
after calling CreateProcess to cleanup cygheap info passed to child.
(cygheap_fixup_in_child): Copy cygheap from shared memory into allocated space
under Windows 9x or if can't relocate shared space under NT.
* cygheap.h: Declare new function.
* spawn.cc (spawn_guts): Use cygheap_fixup_in_child.
* fork.cc (fork_parent): Ditto.
* winsup.h: Declare iswinnt.
2001-08-04 21:10:52 +00:00
842c741f98 * security.cc (set_file_attribute): Clean up. Don't call
`set_nt_attribute' when ntsec isn't set.
2001-08-02 16:01:47 +00:00
8b43d2722b * security.cc (get_user_primary_group): Fix compiler warning.
(alloc_sd): Add DELETE permission for user when S_IWUSR is given.
2001-07-27 09:17:57 +00:00
6b91b8d53b Throughout, reorganize header file inclusion to put security.h prior to
fhandler.h.
* fhandler.h (fhandler_base::get_inheritance): New method.
* fhandler_socket.cc (fhandler_socket::create_secret_event): Use proper
close-on-exec inheritance when creating.
(fhandler_socket::check_peer_secret_event): Create handle as non-inheritable.
2001-07-26 19:22:24 +00:00
c9fbce2641 * security.cc (get_user_groups): Call Net function with NULL server
name under specific error conditions.
        (is_group_member): Ditto.
        (get_user_local_groups): Ditto.
        (get_user_primary_group): Ditto.
2001-07-18 12:56:26 +00:00
3a157c0d0d Change well_known_admin_sid to well_known_admins_sid throughout.
* sec_acl.cc (setacl): Never set DELETE permission. Set
        FILE_DELETE_CHILD only on readable and executable directories.
        * sec_helper.cc: Add constructor for `well_known_null_sid'.
        * security.cc (get_nt_attribute): Set S_ISVTX for directories if
        FILE_WRITE_DATA and FILE_EXECUTE but not FILE_DELETE_CHILD is set.
        Add evaluation of S_ISVTX, S_ISGID and S_ISUID from NULL ACE.
        (alloc_sd): Never set DELETE permission. Set FILE_DELETE_CHILD
        only on readable and executable directories.
        Add creation of NULL ACE for S_ISVTX, S_ISGID and S_ISUID permissions.
        * security.h: Add extern declaration for `well_known_null_sid'.
2001-07-15 22:40:07 +00:00