* fhandler.h (fhandler_socket::accept4): Rename from accept. Take
additional flag parameter.
* fhandler_socket.cc (fhandler_socket::accept4): Ditto. Handle
SOCK_NONBLOCK and SOCK_CLOEXEC flags.
* net.cc (cygwin_socket): Handle SOCK_NONBLOCK and SOCK_CLOEXEC flags
in type. Check for invalid flag values.
(socketpair): Ditto.
(cygwin_accept): Accommodate renaming of fhandler_socket::accept
function to accept4.
(accept4): New function.
* posix.sgml: Mention accept4 as GNU extensions.
* include/cygwin/socket.h (SOCK_NONBLOCK): Define.
(SOCK_CLOEXEC): Define.
(_SOCK_FLAG_MASK): Define when building Cygwin.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* include/sys/socket.h (accept4): Declare.
(pipe2): Export.
* dtable.cc (dtable::dup_worker): Take additional flags parameter.
Handle O_CLOEXEC flag.
(dtable::dup3): Rename from dup2. Take additional flags parameter.
Check for valid flags. Drop check for newfd == oldfd.
* dtable.h (dtable::dup_worker): Add flags parameter.
(dtable::dup3): Rename from dup2.
* fcntl.cc (fcntl64): Add F_DUPFD_CLOEXEC case.
* fhandler.h (fhandler_mailslot::get_object_attr): Add flags parameter.
* fhandler.cc (fhandler_base::open): Use security attribute with
inheritance according to setting of O_CLOEXEC flag.
* fhandler_console.cc (fhandler_console::open): Ditto.
* fhandler_fifo.cc (sec_user_cloexec): New inline function to
create security attribute with inheritance according to setting of
O_CLOEXEC flag.
(fhandler_fifo::open): Call sec_user_cloexec to fetch security
attribute.
(fhandler_fifo::wait): Ditto.
* fhandler_mem.cc (fhandler_dev_mem::open): Ditto.
* fhandler_mailslot.cc (fhandler_mailslot::get_object_attr): Take
additional flags parameter. Use security attribute with inheritance
according to setting of O_CLOEXEC flag.
(fhandler_mailslot::open): Call get_object_attr with flags parameter.
* fhandler_registry.cc (fhandler_registry::open): Call set_close_on_exec
on real handles to accommodate O_CLOEXEC flag.
* fhandler_tty.cc (fhandler_tty_slave::open): Ditto.
* fhandler_tape.cc: Create mutex with inheritance according to setting
of O_CLOEXEC flag.
* pipe.cc: Replace usage of O_NOINHERIT with O_CLOEXEC.
(fhandler_pipe::init): Simplify setting close_on_exec flag.
(fhandler_pipe::open): Remove setting close_on_exec flag.
(fhandler_pipe::create): Use security attribute with inheritance
according to setting of O_CLOEXEC flag.
(pipe2): New exported function.
* posix_ipc.cc: Throughout, open backing files with O_CLOEXEC
flag to follow POSIX semantics.
* security.h (sec_none_cloexec): New define.
* syscalls.cc (dup): Add missing extern "C" qualifier. Accommodate
renaming of dtable::dup2 to dtable::dup3.
(dup2): Ditto. Check newfd == oldfd here.
(dup3): New function. Check newfd == oldfd here.
(open): Set close_on_exec flag according to O_CLOEXEC flag before
calling fhandler->open.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
(format_proc_cpuinfo): Replace szBuffer with a union in_buf. Use type
correct throughout. Add a couple of missing or newer cpu flags. Allow
certain AMD flags for intel as well.
PLARGE_INTEGER.
* fhandler_disk_file.cc (fhandler_base::fstat_by_handle):
Accommodate fstat_helper change of timestamp arguments.
(fhandler_base::fstat_by_name): Ditto.
(fhandler_base::fstat_helper): Define with timestamps as PLARGE_INTEGER.
Accommodate in call to to_timestruc_t.
Revert usage of argz functions when reading input from file and
simplify option usage. Allow only one option argument and use
the rest as filename argument to allow spaces in filenames. Restrict
processing special folder type options to one line.
value.
* fhandler_socket.cc (fhandler_socket::connect): Add false as second
parameter to wait_for_events call.
(fhandler_socket::accept): Ditto.
(fhandler_socket::send_internal): Fix typo in call to wait_for_events.
a NULL return when executable isn't found in $PATH. Convert NULL
to "".
(execvpe): Ditto.
* spawn.cc (spawn_guts): Return with EFAULT if prog_arg is NULL.
Return with ENOENT if prog_arg is empty string. Add a comment.
for Alt modifier generically for function keys and keypad keys.
Distinguish Normal, Ctrl, Shift, Ctrl-Shift rather
than Normal, Ctrl, Shift, Alt, so that in combination with generic
Alt handling all 8 combinations of these modifiers are distinguished.
(keytable): Add escape sequences for remaining modified
function keys as a compatible extension using rxvt escape codes.
Also distinguish keypad keys modified with Ctrl, Shift, Ctrl-Shift
using xterm-style modifier coding.
graphics mode and transform wide characters in ASCII small
letter range to corresponding graphics.
(__vt100_conv): Table to transform small ASCII letters to line
drawing graphics for use in VT100 graphics mode.
(write_normal): Check for SO/SI control characters to
enable/disable VT100 graphics mode.
(base_chars): Enable SO/SI control characters for detection.
(write): Check for ESC ( 0 / ESC ( B escape sequences to
enable/disable VT100 graphics mode. Also detect ">" while
parsing ESC [ sequences to distinguish specific requests.
(char_command): Distinguish Secondary from Primary Device Attribute
request to report more details about cygwin console terminal version.
* fhandler.h (vt100_graphics_mode_active): New flag to indicate mode.
(saw_greater_than_sign): New parse flag for ESC [ > sequences.
(gotparen, gotrparen): New state values to parse ESC ( / ) sequences.
* fhandler_console.cc (read): Allow combined Alt-AltGr modifiers
to also produce an ESC prefix like a plain Alt modifier, e.g. to make
Alt-@ work on a keyboard where @ is AltGr-q.
according to context. Throughout, replace hMainThread with
GetCurrentThread/NtCurrentThread according to context.
* dcrt0.cc (dll_crt0_0): Drop duplication of GetCurrentProcess to
hMainProc. Drop duplication of GetCurrentThread to hMainThread.
* dtable.cc (dtable::stdio_init): Remove useless comment.
* globals.cc (hMainProc): Remove.
(hMainThread): Remove.
* ntdll.h (NtCurrentProcess): Define.
(NtCurrentThread: Define.
* fhandler_registry.cc: Call UNICODE registry functions throughout
and convert to multibyte using current locale's charset. Accommodate
throughout.
(must_encode): Take wchar_t.
(encode_regname): Convert from wchar_t *.
(decode_regname): Convert to wchar_t *.
files in this case, instead of moving them to the recycler. Create
even more unique filename. Add comment to explain filename.
(unlink_nt): Remove code returning with EBUSY on remote shares.
Set bin_stat to move_to_bin except on NFS. Add comment to explain.
events (for completion of mouse reporting mode 1000) and mouse
movement events (for additional mouse reporting modes 1002 and 1003).
Use mouse_aware() as a guard and only condition for mouse
reporting in order to enforce consistence of read() and select().
Add focus reports (for additional focus reporting mode 1004).
(mouse_aware): Enable detection of additional mouse events for select().
Tune function to precisely match actual reporting criteria.
Move adjustment of mouse position (by window scroll offset)
here to avoid duplicate code.
(char_command): Initialization of enhanced mouse reporting modes.
Initialization of focus reporting mode.
* fhandler.h (use_mouse): Change flag (bool->int) to indicate
additional mouse modes. Add flag to indicate focus reporting.
(mouse_aware): Move enhanced function into fhandler_console.cc.
* select.cc (peek_console): Use modified mouse_aware() for more
general detection of mouse events. Also check for focus reports.
calls and use string conversion according to current locale.
(longopts): Change "dword-le" to "dword-be", as was originally
intended.
(usage): Change usage accordingly.
(print_version): Simplify copyright dates in output.
(cmd_list): Handle REG_LINK like REG_SZ.
(cmd_get): Ditto.
(main): Call setlocale.
* utils.sgml (regtool): Fix options and add missing descriptions for
new features.
socket handle value to debug output.
(fhandler_socket::fixup_after_fork): Ditto. Make new socket handle
OVERLAPPED, just as if it has been created with socket().
* net.cc (fdsock): Close duplicated socket and explain why. Disable
the entire WSADuplicateSocket test for now and explain why.
error codes. Always refuse non "user." EAs for Linux compatibility
and return EOPNOTSUPP. Fix handling of empty (== non-existant) EAs.
Always prepend "user." prefix to EA names.
(write_ea): Try to open file first to have more sensible error codes.
Always refuse non "user." EAs for Linux compatibility and return
EOPNOTSUPP. Delay skipping "user." prefix until after potential call
to read_ea.
* autoload.cc (WSADuplicateSocketW): Define.
(WSASocketW): Define.
* dtable.cc (dtable::release): Call dec_need_fixup_before if necessary.
(dtable::fixup_before_fork): New function.
(dtable::fixup_before_exec): New function.
* dtable.h (class dtable): Add member cnt_need_fixup_before. Add
declarations for above new functions.
(dtable::dec_need_fixup_before): New inline method.
(dtable::inc_need_fixup_before): New inline method.
(dtable::need_fixup_before): New inline method.
* fhandler.h (fhandler_base::fixup_before_fork_exec): New virtual
method.
(fhandler_base::need_fixup_before): New virtual method.
(class fhandler_socket): Add member prot_info_ptr.
(fhandler_socket::init_fixup_before): Declare.
(fhandler_socket::need_fixup_before): New inline method.
(fhandler_socket::fixup_before_fork_exec): Declare.
(fhandler_socket::fixup_after_exec): Declare.
* fhandler_socket.cc (fhandler_socket::fhandler_socket): Initialize
prot_info_ptr to NULL.
(fhandler_socket::~fhandler_socket): Free prot_info_ptr conditionally.
(fhandler_socket::init_fixup_before): New method.
(fhandler_socket::fixup_before_fork_exec): Ditto.
(fhandler_socket::fixup_after_fork): Use WSASocketW to duplicate
socket if necessary.
(fhandler_socket::fixup_after_exec): New method.
(fhandler_socket::dup): Use fixup_before_fork_exec/fixup_after_fork
to duplicate socket if necessary.
* fork.cc (frok::parent): Start child suspended if some fhandler
needs fixup before fork. If so, call dtable::fixup_before_fork after
CreateProcess and resume child.
* net.cc (fdsock): Try to find out if socket needs fixup before and
initialize socket accordingly. Add HUGE comment to explain what happens
and why.
* spawn.cc (spawn_guts): Start child suspended if some fhandler needs
fixup before exec. If so, call dtable::fixup_before_exec after
CreateProcess.
get_object_attr.
* fhandler_mailslot.cc (fhandler_mailslot::get_object_attr): Implement.
(fhandler_mailslot::open): Replace calls to path_conv::get_object_attr
with calls to fhandler_mailslot::get_object_attr.
(main): Don't reuse local variables confusingly. Don't print any file
information if acl() fails. Improve error message. Always print a
trailing empty line. Set return code to 2 if accessing some file fails.
SubstituteName for volume string to recognize volume mount points.
Reuse subst when calling sys_wcstombs.
* syscalls.cc (rename): Set errno to EBUSY when trying to rename
volume mount points. Explain why.
(ro_u_sys): Ditto.
* syscalls.cc (nt_path_has_suffix): Replace with ...
(nt_path_has_executable_suffix): New function checking for explicit
executable suffixes.
(rename): Call nt_path_has_executable_suffix instead of
nt_path_has_suffix. Check oldpath for nt_path_has_executable_suffix
as well to set old_explicit_suffix.
Check cygwin_internal for returning 0 rather than for != 0.
(transport_layer_pipes::accept): Add debug output.
(transport_layer_pipes::connect): Ditto.
(load_cygwin): Fetch cygwin DLL path and store in cygwin_dll_path.
* strace.cc: Full ditto.
* path.cc (read_mounts): First use the path stored in cygwin_dll_path,
if available. Then fall back to fetching own path. Add comment.
Drop printing warnings since they look funny in strace output.
* mount.cc (mount_info::from_fstab): Remove extern declaration of
transform_chars.
* path.cc (tfx_chars): Move to strfuncs.cc.
(transform_chars): Ditto.
* strfunc.cc (tfx_chars): Moved here from path.cc.
(transform_chars): Ditto.
(sys_cp_wcstombs): Make UNICODE private use area conversion roundtrip
save for all characters.
(sys_cp_mbstowcs): Ditto, by removing special case for UTF-8 sequences
representing U+f0XX UNICODE chars. Fix typo in comment.
(PIPE_NAME_SUFFIX): Ditto.
(class transport_layer_pipes): Convert _pipe_name from char pointer
to wchar_t array.
* transport_pipes.cc (transport_layer_pipes::transport_layer_pipes):
Accommodate the fact that _pipe_name is a wchar_t array, rather than
a char pointer.
(transport_layer_pipes::transport_layer_pipes): Initialize _pipe_name
with variable pipe name based in installation key fetched from Cygwin
DLL.
(transport_layer_pipes::accept): Call CreateNamedPipeW explicitely.
(transport_layer_pipes::connect): Call CreateFileW and WaitNamedPipeW
explicitely.
* dtable.cc (handle_to_fn): Add check for correct installation_key
string in object name for pipes and ttys.
* external.cc (cygwin_internal): Add CW_GET_INSTKEY to allow fetching
the installation_key from cygserver.
* fhandler_fifo.cc (fhandler_fifo::fifo_name): Add installation_key
to fifo name.
* globals.cc: Include cygprops.h.
(_RDATA): Move slightly and add comment.
(cygwin_props): Define.
* mount.cc (mount_info::init): Accommodate the fact that
installation_root is now a global variable in DLL common shared memory,
rather than a member of cygwin_shared.
* pipe.cc (fhandler_pipe::create_selectable): Add installation_key to
pipe name.
* shared.cc (installation_root): Define here for storage in DLL
common shared memory.
(installation_key): Ditto.
(installation_key_buf): Ditto.
(init_installation_root): Convert from shared_info method to ordinary
function. Add initializing installation_key. Invalidate
installation_key depending of value of disable_key property. Add
comment to explain.
(get_shared_parent_dir): Add installation_key to directory name.
(get_session_parent_dir): Ditto.
(shared_info::initialize): Move call to init_installation_root from
here...
(memory_init): ...to here. Add debug output to print installation root
and installation key. Add comment to explain why.
* shared_info.h (SHARED_INFO_CB): Recalculate.
(CURR_SHARED_MAGIC): Ditto.
(class shared_info): Remove definition of installation_root and
declaration of init_installation_root.
(init_installation_root): Declare.
(installation_root): Declare.
(installation_key): Declare.
* uinfo.cc (pwdgrp::load): Accommodate the fact that installation_root
is now a global variable in DLL common shared memory.
* include/cygwin/version.h: Bump API minor number.
(CYGWIN_INFO_INSTALLATIONS_NAME): Add.
* include/sys/cygwin.h (cygwin_getinfo_types): Add CW_GET_INSTKEY.
LocalFree instead of ::free.
* sec_acl.cc: Throughout replace old ACE flag definitions with current
definitions as used in MSDN man pages.
* security.cc: Ditto.
* fhandler.cc (fhandler_base::open): Make sure file has really been
just created before fixing file permissions. Add S_JUSTCREATED
attribute to set_file_attribute call.
* fhandler_disk_file.cc (fhandler_disk_file::mkdir): Always create dir
with default security descriptor and fix descriptor afterwards.
Add S_JUSTCREATED flag to set_file_attribute call.
* fhandler_socket.cc (fhandler_socket::bind): Ditto for AF_LOCAL
socket files.
* path.cc (symlink_worker): Ditto for symlinks.
* security.cc (get_file_sd): Call GetSecurityInfo rather than
NtQuerySecurityObject. Explain why. Change error handling accordingly.
(alloc_sd): Skip non-inherited, non-standard entries in ACL if
S_JUSTCREATED attribute is set. Explain why. Minor format fixes.
* security.h (S_JUSTCREATED): New define.
(security_descriptor::operator=): New operator.
(__rn): Drop str and use hex_str instead.
(__small_vsprintf): If 'l' modifier has been found, print subsequent
multibyte or wide char string using the s, S, or W options in extended
hex value layout.
* fhandler_disk_file.cc (fhandler_disk_file::readdir): Print WCHAR
and resulting multibyte filename in extended hex value layout in
debug output.
using my_wcstombs.
(get_user_folder): Remove.
(do_sysfolders): Use get_special_folder instead of get_user_folder.
Fetch system paths as WCHAR and convert using my_wcstombs.
CW_SET_EXTERNAL_TOKEN.
Add new enum CW_TOKEN_IMPERSONATION, CW_TOKEN_RESTRICTED.
* cygheap.h (cyguser): New flags ext_token_is_restricted,
curr_token_is_restricted and setuid_to_restricted.
* external.cc (cygwin_internal): Add CW_SET_EXTERNAL_TOKEN.
* sec_auth.cc (set_imp_token): New function.
(cygwin_set_impersonation_token): Call set_imp_token ().
* security.h (set_imp_token): New prototype.
* spawn.cc (spawn_guts): Use CreateProcessAsUserW if restricted token
was enabled by setuid(). Do not create new window station in this case.
* syscalls.cc (seteuid32): Add handling of restricted external tokens.
Set HANDLE_FLAG_INHERIT for primary token.
(setuid32): Set setuid_to_restricted flag.
* uinfo.cc (uinfo_init): Do not reimpersonate if restricted token was
enabled by setuid (). Initialize user.*_restricted flags.
* hires.h (hires_ms): Change initime_us to initime_ns, with 10x
more resolution.
(hires_ms::nsecs): New prototype.
(hires_ms::usecs, hires_ms::msecs, hires_ms::uptime): Adjust.
* times.cc (systime_ns): New helper function.
(hires_ms::prime): Use it for more resolution.
(hires_ms::usecs): Change to...
(hires_ms::nsecs): ...with more resolution.
(clock_gettime): Use more resolution.
(systime): Rewrite in terms of systime_ns.
(timespec_to_filetime): Rewrite math to reflect true operation.
* fhandler_disk_file.cc (utimens_fs): Use higher resolution.
* fhandler_termios.cc (fhandler_termios::tcgetpgrp): Only return
valid pgid if tty is controlling tty. Set errno to ENOTTY and
return -1 otherwise.
(fhandler_pty_master::tcgetpgrp): New function. Return 0 for
master side of pty if it's not the controlling tty of the process.
call initial_setlocale from here.
* syscalls.cc (initial_setlocale): Set internal charset and revert
application locale to "C".
(setlocale): Don't set Cygwin's internal charset here.
str_to_con.
* fhandler_console.cc (dev_console::con_to_str): Simplify. Always
default to the current internal locale.
(dev_console::get_console_cp): Always use codepage 437 for alternate
charset.
(dev_console::str_to_con): Constify charset parameter.
(fhandler_console::write_normal): Always use codepage 437 for alternate
charset. Otherwise always default to the current internal locale.
Replace ASCII SO with ASCII CAN.
* strfuncs.cc: Tweka comments according to below changes.
(sys_cp_wcstombs): Constify charset parameter. Convert all wchar_t
values in the Unicode private use area U+F0xx to the singlebyte
counterpart. Drop special handling creating ASCII SO sequence from
U+DCxx value. Rearrange for performance. Replace ASCII SO with
ASCII CAN.
(sys_cp_mbstowcs): Constify charset parameter. Replace ASCII SO with
ASCII CAN. Drop special case for U+DCxx ASCII SO sequences. Always
create a replacement from the Unicode private use area U+F0xx for
invalid byte values in a multibyte sequence. Do the same for wchar_t
values from the U+F0xx range to make them roundtrip safe.
* wchar.h (sys_cp_wcstombs): Constify charset parameter.
(sys_cp_mbstowcs): Ditto.
* dcrt0.cc (dll_crt0_1): Call setlocale (LC_CTYPE, "") here, just
before resetting application locale to "C".
* environ.cc (environ_init): Drop code setting locale here.
* syscalls.cc (check_codepage): Break out check for required codepage
from internal_setlocale.
(internal_setlocale): Just convert CWD and $PATH from old charset to
new charset and set internal charset.
(setlocale): Change accordingly. Don't require LC_ALL or LC_CTYPE to
store old locale value. Always call internal_setlocale if charset
changed due to locale environment changes.
second halves to unambiguous ASCII SO sequence. When converting
chars invalid in current codepage to ASCII SO sequence, make
sure to check for surrogate pair second half only if ct least
one wide characters is left. Decrement nwc if valid second half has
been converted.
(sys_cp_mbstowcs): Improve ASCII SO handling. Never break from loop
if invalid character has been found. Recognize ASCII SO sequence
representing originally invalid mulitbyte char converted into a
lone surrogate pair second half. Convert accordingly.
returning pointer to posix path.
(cwdstuff::reset_posix): Convert to non-inline method taking a wchar_t
pointer.
* path.cc (cwdstuff::set): Revert change from 2009-05-13. Set posix
to valid incoming path again.
(cwdstuff::reset_posix): New implementation setting posix path from
incoming wchar_t path. Explain usage.
(cwdstuff::get_posix): Drop implementation.
(cwdstuff::get): Drop special case to handle empty posix path.
* syscalls.cc (internal_setlocale): Store old posix cwd as wide char
path. Restore posix cwd using new charset. Explain why.
function to zero to avoid transferring to incorrect location.
(_cygtls::call_signal_handler): Don't transfer to handler if there is no
handler to transfer to.
* include/wtsapi32.h (WTSQuerySessionInformationA,
WTSQuerySessionInformationW, WTSQuerySessionInformation, WTSFreeMemory):
Moved to (_WIN32_WINNT >= 0x0500) guard.
(thanks to Pierre Ossman)
* path.cc (symlink_info::check_reparse_point): Return -1 for volume
mount points. Explain why.
(symlink_info::check): Call fs.update again for volume mount points.
Explain why.
(run_dtors): New wrapper function which avoids calling dtors more than once.
* dll_init.cc (dll_global_dtors): Use dll.run_dtors wrapper.
(dll_list::detach): Ditto.
(dll_list::alloc): Set has_dtors flag.
whether set_name should be called or not.
(dtable::dup_worker): Call build_fh_pc with new second parameter set
to false. Explain why. If fhandler's dup failed, delete rather than
cfree newfh and set newfh to NULL to indicate failure correctly.
* dtable.h (build_fh_pc): Change declaration according to above change.
Default set_name parameter to true.
* mmap.cc (mmap_record::free_fh): Delete rather than cfree fh.
ill-advised attempt to optimize "." and ".." handling by checking for
specific position in directory listing. Explain why.
(fhandler_disk_file.cc (fhandler_disk_file::readdir): Ditto.
Special-case opening file on NFS to fetch inode number and add longish
comment to explain why.
AF_LOCAL sockets.
(fhandler_socket::getpeername): Ditto.
* net.cc (socketpair): Don't set sun_path and peer_sun_path to
make sure getsockname and getpeername return the correct values
for AF_LOCAL sockets.
then constant size. Truncate returned data, but return full address
length as per POSIX.
(fhandler_socket::getsockname): Truncate returned data, but return full
address length as per POSIX.
(fhandler_socket::getpeername): Ditto.
(fhandler_socket::set_peer_sun_path): New method.
(fhandler_socket::get_peer_sun_path): New method.
* fhandler_socket.cc (fhandler_socket::fhandler_socket): Initialize
peer_sun_path to NULL.
(fhandler_socket::~fhandler_socket): Free peer_sun_path if necessary.
(fhandler_socket::dup): Duplicate peer_sun_path.
(fhandler_socket::accept): Ditto. Return fake unbound peer content
and len in case of AF_LOCAL sockets.
(fhandler_socket::getsockname): Always use local sockaddr_storage to
store socket address and copy over to incoming address. Handle every
namelen correctly per POSIX.
(fhandler_socket::getpeername): Ditto. Add code path to return
correct value for AF_LOCAL sockets.
(fhandler_socket::set_peer_sun_path): New method.
* net.cc (socketpair): Set peer_sun_path to empty string, just like
sun_path.
name isn't found and return 0 to allow searching to proceed. Always
return 0 or 1, not -1.
(enum_groups): Avoid error message if given group name isn't found.
* mkpasswd.c (enum_users): Ditto.
the native NT socket device.
(dtable::init_std_file_from_handle): Remove unused tmp_pathbuf
variable. Move check for sockets into FILE_TYPE_PIPE clause.
Rely on handle_to_fn having recognized socket, or check if
getsockopt works to accommodate NT4 shortcoming.
(handle_to_fn): Use tmp_pathbuf for OBJECT_NAME_INFORMATION
buffer and simplify code due to that. Check name returned by
NtQueryObject for socket device.
Corinna Vinschen
Christopher Faylor
Eric Blake
Chris Sutcliffe
Charles Wilson
Dave Korn
Keith Marshall