* ntdll.h (struct _PEB): Add members accessed by the fast cwd method
starting with Vista.
(struct _KUSER_SHARED_DATA): Define with only the DismountCount.
(RtlAllocateHeap): Declare.
(RtlEnterCriticalSection): Declare.
(RtlFreeHeap): Declare.
(RtlLeaveCriticalSection): Declare.
* path.cc (get_user_proc_parms): Remove.
(struct _FAST_CWD): New structure.
(fast_cwd_ptr): Define.
(SharedUserData): Define.
(peek32): Define.
(find_fast_cwd_pointers): New function to find the global pointer
to the current FAST_CWD structure.
(copy_cwd_str): New helper function.
(cwdstuff::override_win32_cwd): New method to set the Win32 CWD.
(cwdstuff::init): Just call override_win32_cwd from here when
started from native Win32 parent.
(cwdstuff::set): Access Win32 CWD via PEB reference instead of using
get_user_proc_parms function. Memorize old DismountCount before
opening directory handle. Call override_win32_cwd to set up Win32 CWD.
Be more verbose in comments.
* wincap.h (wincaps::has_fast_cwd): New element.
* wincap.cc: Implement has_fast_cwd element throughout.
condition. Fix comment about availability. Move remaining comment to
the right spot. Drop has_ip_helper_lib condition.
* net.cc (cygwin_setsockopt): Drop has_disabled_user_tos_setting
condition. Fix comment.
(get_2k_ifs): Fix comment.
(get_nt_ifs): Remove.
(getifaddrs): Drop call to get_nt_ifs.
(get_ifconf): Ditto.
* wincap.cc: Throughout, drop has_ip_helper_lib,
has_disabled_user_tos_setting, and has_exclusiveaddruse settings from
wincaps.
(wincap_unknown): Remove.
(wincap_nt4): Remove.
(wincap_minimal): New macro, set to wincap_nt4sp4 for now.
(wincapc::init): Drop test for pre-SP4 NT4. Just imply at least NT SP4.
Replace references to wincap_unknown with references to wincap_minimal.
* wincap.h (struct wincaps): Drop has_ip_helper_lib,
has_disabled_user_tos_setting, and has_exclusiveaddruse flags and
methods.
(wincapc::has_buggy_thread_startup): Ditto.
* wincap.cc::wincap_*): Accommodate has_buggy_thread_startup.
(wincapc::init): Explicitly turn off has_buggy_thread_startup if not WOW64.
* cygthread.h (cygthread::thread_handle): Declare/define new method.
* dcrt0.cc (_dll_crt0): Don't call __sinit here.
(dll_crt0_0): Don't call sigproc_init during initialization if
wincap.has_buggy_thread_startup().
(dll_crt0_1): Defer sigproc_init to here when
wincap.has_buggy_thread_startup(). Call __sinit after we've determined that
we're not forking.
(__main): Rework comments. Add potential future reminder.
(MsgWaitForMultipleObjects): Remove.
* select.cc (select_stuff::wait): Use MsgWaitForMultipleObjectsEx with
QS_ALLPOSTMESSAGE and, if possible, MWMO_INPUTAVAILABLE flags. Explain
why. Fix a potential crash due to a NULL pointer in WAIT_FAILED case.
(peek_windows): Use filter pattern on NT4. Explain why.
* wincap.h (wincaps::has_mwmo_inputavailable): New element.
* wincap.cc: Implement above element throughout.
* autoload.cc (LocaleNameToLCID): Define.
* cygwin.din (strfmon): Export.
* nlsfuncs.cc: New file. Define a lot of internal functions called
from setlocale.
(wcscoll): Implement locale-aware here, using CompareStringW function.
(strcoll): Ditto.
(wcsxfrm): Implement locale-aware here, usingLCMapStringW function.
(strxfrm): Ditto.
(__set_charset_from_locale): Replace __set_charset_from_codepage.
Return Linux-compatible charset.
* strfuncs.cc (__set_charset_from_codepage): Remove.
* wchar.h (__set_charset_from_codepage): Drop definition.
* wincap.h (wincaps::has_localenames): New element.
* wincap.cc: Implement above element throughout.
* libc/strfmon.c: New file.
* libc/strptime.cc: Remove locale constant strings in favor of
access to locale-specifc data.
(strptime): Point _CurrentTimeLocale to locale-specific data.
Throughout use correct locale-specific format fields for all
locale-specific formats.
* include/monetary.h: New file.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* wincap.cc: Implement above element throughout.
* wchar.h (__sjis_mbtowc): Declare.
(__eucjp_mbtowc): Ditto.
(__gbk_mbtowc): Ditto.
(__kr_mbtowc): Ditto.
(__big5_mbtowc): Ditto.
* syscalls.cc (internal_setlocale): Convert to char * function.
Return parameter by default. Return NULL if request to use a
charset can't be satisfied due to missing codepage support in the
underlying OS. Fix comment.
(setlocale): Store original locale. Restore to original locale if
internal_setlocale returns NULL.
Windows 7 64 bit issue. Add lengthy comment to explain what happens.
* wincap.h (wincaps::has_console_handle_problem): New element.
* wincap.cc: Implement above element throughout.
(wincap_7): New wincaps structure for NT 6.1 kernels.
(wincapc::init): Set has_console_handle_problem to false for 32 bit
systems.
Fix broken older ChangeLog entry.
evaluation for faked "." entry.
* mount.cc (fs_info::update): Move setting of is_cdrom after checking
for caseinsensitivity. Recognize UDF in is_cdrom case and set
caseinsensitive flag according to UDF brokenness determined by OS.
Add comment to explain why.
* mount.h (class fs_info): Add is_udf status flag.
* path.cc (symlink_info::check): Add workaround for UDF bug in
terms of casesensitivity on certain OSes.
* wincap.h (wincaps::has_broken_udf): New element.
(wincaps::has_broken_udf): New element
(WSASendMsg): Define.
* fhandler.h (class fhandler_socket): Change definition of recv_internal
and send_internal to take WSAMSG pointer as parameter.
* fhandler_socket.cc (WSAID_WSARECVMSG): Define.
(LPFN_WSARECVMSG): Define.
(WSASendMsg): Declare.
(get_ext_funcptr): New function to fetch address of WSARecvMsg.
(fhandler_socket::recv_internal): Take just a LPWSAMSG parameter.
Change code accordingly. If control information is requested,
fetch address of WSARecvMsg and use that instead of WSARecvFrom.
(fhandler_socket::recvfrom): Change return type to ssize_t as
declared in fhandler.h. Accommodate changes to recv_internal.
(fhandler_socket::recvmsg): Ditto. Make sure that control information
is only requested if system, address family, and socket type support it.
(fhandler_socket::send_internal): Take just a LPWSAMSG parameter
and the flags. Change code accordingly. If control information is
provided, use WSASendMsg instead of WSASendTo.
(fhandler_socket::sendto): Drop useless comment. Accommodate changes
to send_internal.
(fhandler_socket::sendmsg): Ditto. Make sure that control information
is only provided if system, address family, and socket type support it.
* wincap.h (wincaps::has_recvmsg): New element.
(wincaps::has_sendmsg): New element
* wincap.cc: Implement above elements throughout.
* include/cygwin/socket.h (CMSG_ALIGN): Phrase in terms of alignment
of type struct cmsghdr.
(GetProcessDEPPolicy): Ditto.
(SetProcessDEPPolicy): Ditto.
* dcrt0.cc (disable_dep): New static function.
(dll_crt0_0): Call disable_dep on platforms requiring it. Add longish
comment to explain the circumstances.
* wincap.h (wincaps::ts_has_dep_problem): New element.
* wincap.cc: Implement above element throughout.
(wincapc::init): Set ts_has_dep_problem to true on 2008 Terminal
Servers.
* winsup.h (WINVER): Set to 0x0601.
local socket test in SO_REUSEADDR case on systems supporting
enhanced socket security. Explain why. Only call address_in_use
for AF_INET sockets.
* net.cc (cygwin_setsockopt): Don't call setsockopt to set SO_REUSEADDR
on systems supporting enhanced socket security. Add comment.
* wincap.h (wincaps::has_enhanced_socket_security): New element.
* wincap.cc: Implement above element throughout.
(NtCreateTransaction): Define.
(NtCommitTransaction): Define.
(NtRollbackTransaction): Define.
(RtlGetCurrentTransaction): Define.
(RtlSetCurrentTransaction): Define.
* ntdll.h (TRANSACTION_ALL_ACCESS): Define.
(NtCreateTransaction): Declare.
(NtCommitTransaction): Declare.
(NtRollbackTransaction): Declare.
(RtlGetCurrentTransaction): Declare.
(RtlSetCurrentTransaction): Declare.
* syscalls.cc (start_transaction): New static function to start TxF
transaction.
(stop_transaction): New static function to end TxF transaction.
(rename): Call start_transaction and stop_transaction where appropriate
on systems supporting transactions.
* wincap.h (wincaps::has_transactions): New element.
* wincap.cc: Implement above element throughout.
from 2005-12-02.
* exceptions.cc (stack_info::walk): Add workaround for NT 5.2
64 bit OSes.
* wincap.h (wincaps::has_restricted_stack_args): New element.
* wincap.cc: Implement above element throughout.
(wincapc::init): Reset has_restricted_stack_args if not running
under WOW64.
* security.cc (alloc_sd): Set security descriptor control flag without
calling SetSecurityDescriptorControl function.
* wincap.h (wincapc::has_dacl_protect): Rename from
has_security_descriptor_control.
* wincap.cc: Ditto throughout.
* mmap.cc (mlock): Accommodate parameter change in call to
push_thread_privilege.
(munlock): Ditto.
* ntdll.h (STATUS_NOT_ALL_ASSIGNED): Define.
(NtAdjustPrivilegesToken): Declare.
* sec_helper.cc (cygpriv): Reorder to match numerical privilege order.
(privilege_luid): Take job of privilege_luid_by_name, using new
cygpriv.
(privilege_luid_by_name): Remove.
(privilege_name): Accommodate new cygpriv array.
(set_privilege): Call NtAdjustPrivilegesToken to avoid using advapi32.
Accommodate changes to privilege_name.
(set_cygwin_privileges): Simplify. Don't try to set
SE_CREATE_GLOBAL_PRIVILEGE on systems not supporting it.
* security.cc (sys_privs): Reorder to match numerical privilege order.
Use real privilege values as defined in security.h.
(get_system_priv_list): Drop unused grp_list argument. Create
list of privileges according to new wincapc::max_sys_priv value.
(get_priv_list): Call privilege_luid instead of privilege_luid_by_name.
Make priv a local value instead of a pointer.
(create_token): Accommodate parameter change in call to
push_self_privilege.
(lsaauth): Ditto.
(check_access): Use privilege values directly instead of calling
privilege_luid.
* security.h: Define real privilege values.
(cygpriv_idx): Remove.
(privilege_luid): Change declaration.
(privilege_luid_by_name): Drop declaration.
(set_privilege): Change declaration.
(set_process_privilege): Drop definition.
(_push_thread_privilege): Accomodate new set_privilege parameters.
* wincap.h (wincapc::max_sys_priv): New element.
* wincap.cc: Implement above element throughout.
(wincap_2000sp4): New wincaps structure.
(wincap_xpsp1): Ditto.
(wincap_xpsp2): Ditto.
(wincapc::init): Use new wincaps.
(wincapc::max_sys_priv): New element.
* cygwin.din: Export freeifaddrs, getifaddrs.
* fhandler_socket.cc (fhandler_socket::ioctl): Drop SOCKET parameter
from get_ifconf.
* net.cc: Include ifaddrs.h.
(in_are_prefix_equal): Match addresses in network byte order.
(ip_addr_prefix): Convert address into host byte order before
testing with IN_LOOPBACK.
(struct ifall): Define.
(get_xp_ifs): Replace get_xp_ifconf. Return struct ifall array.
(get_2k_ifs): Ditto, replace get_2k_ifconf.
(get_nt_ifs): Ditto, replace get_nt_ifconf.
(getifaddrs): New function.
(freeifaddrs): New function.
(get_ifconf): Call matching get_XX_ifs function and create
ifc content from here. Drop lo fake since it's now in get_nt_ifs.
* posix.sgml: Add freeifaddrs and getifaddrs to list of implemented
BSD functions.
* wincap.h (wincapc::has_broken_if_oper_status): New element.
* wincap.cc: Implement above element throughout.
* include/ifaddrs.h: New file.
* include/cygwin/version.h: Bump API minor number.
shared_prefix depending only on terminal service capability.
* dcrt0.cc (dll_crt0_1): Don't call set_cygwin_privileges here.
* fhandler_fifo.cc (fhandler_fifo::open): Create the mutex as global
object.
* posix_ipc.cc (ipc_mutex_init): Use cygheap->shared_prefix.
(ipc_cond_init): Ditto.
* sec_helper.cc (privilege_name): Make static. Use LookupPrivilegeName
directly to be independent of the state of cygheap.
(set_privilege): Take a LUID as parameter instead of an index value.
Only print debug output in case of failure.
(set_cygwin_privileges): Add comment. Use LookupPrivilegeValue to
get privilege LUIDs.
(init_global_security): Call set_cygwin_privileges here.
* security.h (privilege_name): Drop declaration.
(set_privilege): Declare according to above change.
(set_process_privilege): Call privilege_luid to get LUID.
(_push_thread_privilege): Ditto.
* shared.cc (open_shared): Add comment. On systems supporting the
SeCreateGlobalPrivilege, try to create/open global shared memory first.
Fall back to local shared memory if that fails.
* thread.cc (semaphore::semaphore): Use cygheap->shared_prefix.
* wincap.h (wincapc::has_create_global_privilege): New element.
* wincap.cc: Implement above element throughout.
* dir.cc (rmdir): Add existance check to be errno-compatible with Linux.
* fhandler_disk_file.cc (fhandler_disk_file::rmdir): Drop test for
non-existent dir on 9x share.
* syscalls.cc (unlink): Add comment.
* wincap.cc: Remove access_denied_on_delete flag throughout.
* wincap.h: Ditto.
mapping addition.
(ga_clone): Just call ga_dup from here.
(ga_duplist): New function to duplicate list of struct addrinfo.
(ga_echeck): Don't check a_flags, it already happened in
cygwin_getaddrinfo.
(cygwin_freeaddrinfo): Always call ipv4_freeaddrinfo.
(cygwin_getaddrinfo): Use new wincap.supports_all_posix_ai_flags
flag rather than wincap.has_gaa_on_link_prefix. Always duplicate
WinSock's addrinfo list to a self-allocated list. Handle AI_V4MAPPED
for pre-Vista platforms supporting getaddrinfo.
* wincap.h (wincapc::supports_all_posix_ai_flags): New element.
* wincap.cc: Implement above element throughout.
* include/netdb.h: Note how AI_ADDRCONFIG is not supported pre-Vista.
Remove superfluous comment.
* ntdll.h (struct _FILE_RENAME_INFORMATION): Define.
* path.cc (fs_info::update): Note length of rootdir prefix in
root_len.
(get_nt_native_path): New function, taking over functionality of
path_conv::get_nt_native_path.
(path_conv::get_nt_native_path): Just call get_nt_native_path.
* path.h (get_nt_native_path): Declare.
(struct fs_info): New member root_len.
(fs_info::length): New inline method returning root_len.
(path_conv::rootdir): New inline method returning rootdir prefix.
* syscalls.cc (try_to_bin): Rewrite using only system calls.
(unlink_nt): Call try_to_bin with additional handle to open file
parameter.
(statvfs): Use path_conv::rootdir method.
* wincap.h: Define has_recycle_dot_bin throughout.
* wincap.cc: Ditto.
Expect first DWORD in child_info struct being set to non-zero if
wincap.needs_count_in_si_lpres2 is set. Add comment to explain why.
* fork.cc (frok::parent): Set ch.zero[0] to a sensible count value
if wincap.needs_count_in_si_lpres2 is set.
* spawn.cc (spawn_guts): Ditto. Add filler bytes after ch on stack
to accomodate needs_count_in_si_lpres2.
* wincap.h: Define needs_count_in_si_lpres2 throughout.
* wincap.cc: Ditto.
* environ.cc: Disable subauth settings.
* grp.cc: Accomodate cygsidlist's count now being a method.
* sec_helper.cc (SECURITY_MANDATORY_INTEGRITY_AUTHORITY): Remove.
(mandatory_medium_integrity_sid): Remove.
(mandatory_high_integrity_sid): Remove.
(mandatory_system_integrity_sid): Remove.
(fake_logon_sid): Add.
(cygsid::get_sid): Add well_known parameter. Set well_known_sid
accordingly.
(cygsid::getfromstr): Ditto.
(cygsidlist::alloc_sids): Move here from security.cc.
(cygsidlist::free_sids): Ditto.
(cygsidlist::add): Move here from security.h. Add well_known parameter.
Set well_known_sid accordingly. Don't allow duplicate SIDs.
* security.cc: Include cyglsa.h and cygwin/version.h. Throughout
accomodate cygsidlist's count now being a method. Throughout drop
redundant "contains" tests.
(get_user_local_groups): Add local groups as well known SIDs.
(get_token_group_sidlist): Add well known groups as well known SIDs.
(get_server_groups): Ditto. Only call get_unix_group_sidlist after
get_user_local_groups to maintain "well_known_sid" attribute.
(get_initgroups_sidlist): Add well known groups as well known SIDs.
(get_setgroups_sidlist): Add usersid and struct passwd parameter to
allow calling get_server_groups from here.
(get_system_priv_list): Make static. Return size of TOKEN_PRIVILEGES
structure.
(get_priv_list): Ditto.
(create_token): Accomodate above changes. Drop misguided attempt to
add MIC SIDs to created user token. Print returned token as hex value.
(subauth): Disable.
(lsaauth): New function implementing client side of LSA authentication.
* security.h (class cygsid): Add well_known_sid attribute. Accomodate
throughout. Add *= operator to create a well known SID.
(class cygsidlist): Rename count to cnt. Make count a method.
(cygsidlist::add): Move to sec_helper.cc.
(cygsidlist::operator *=): New method to add well known SID.
(cygsidlist::non_well_known_count): New method returning number of
non well known SIDs in list.
(cygsidlist::next_non_well_known_sid): New method returning next non
well known SID by index.
(mandatory_medium_integrity_sid): Drop declaration.
(mandatory_high_integrity_sid): Drop declaration.
(mandatory_system_integrity_sid): Drop declaration.
(fake_logon_sid): Add declaration.
(subauth): Disable declaration.
(lsaauth): Add declaration.
* syscalls.cc (seteuid32): Disable subauthentication. Add LSA
authentication.
* wincap.h: Define needs_logon_sid_in_sid_list throughout.
* wincap.cc: Ditto.
(well_known_this_org_sid): New well known sid.
(SECURITY_MANDATORY_INTEGRITY_AUTHORITY): Define.
(mandatory_medium_integrity_sid): New well known sid.
(mandatory_high_integrity_sid): Ditto.
(mandatory_system_integrity_sid): Ditto.
(cygsid::get_sid): Use local SID_IDENTIFIER_AUTHORITY. Allow all
authorities fitting in a UCHAR.
* security.cc (get_token_group_sidlist): Always add the local
group to the token. Add comment. Add "This Organization" group
if available in incoming group list.
(get_server_groups): Only add world and authenticated users groups
if not already in list.
(create_token): Add matching mandatory integrity SID to group list
on systems supporting Mandatory Integrity Control.
* security.h (well_known_this_org_sid): Define.
(mandatory_medium_integrity_sid): Define.
(mandatory_high_integrity_sid): Define.
(mandatory_system_integrity_sid): Define.
* wincap.h: Define has_mandatory_integrity_control throughout.
* wincap.cc: Ditto.
on/off depending on whether we have allocated a console or not.
* dcrt0.cc (child_info_fork::fork_retry): Add more potential retry statuses.
(dll_crt0_0): Turn on/off console control depending on whether we have a
controlling tty or not.
* exceptions.cc (init_console_handler): Change BOOL to bool.
* fhandler_console.cc (fhandler_console::need_invisible): Cosmetic change.
* winsup.h (init_console_handler): Reflect argument type change.
* wincap.h (supports_setconsolectrlhandler_null): Remove duplicate capability
throughout.
* wincap.cc: Ditto.
later. Add a comment.
* fork.cc (resume_child): Make void.
(frok::parent): Only zero pi when necessary. Explicitly zero si. Set
this_errno when child_copy fails. Accommodate change to resume_child.
* sigproc.cc (sigalloc): Move global_sigs initialization here.
(sigproc_init): Move global_sigs.
(sig_send): Just check for flush signals once.
* wincap.h: Define supports_setconsolectrlhandler_null throughout.
* wincap.cc: Ditto.
* fhandler_socket.cc (fhandler_socket::bind): Set socket to
SO_EXCLUSIVEADDRUSE if application didn't explicitely set SO_REUSEADDR
socket option, on systems supporting SO_EXCLUSIVEADDRUSE.
* net.cc (cygwin_setsockopt): Set fhandler's saw_reuseaddr status flag
if SO_REUSEADDR socket option has been successsfully set.
* wincap.h (wincaps::has_exclusiveaddruse): New element.
* wincap.cc: Implement above element throughout.
* dir.cc (__opendir_with_d_ino): Just call opendir.
(opendir): Remove CYGWIN_VERSION_CHECK_FOR_NEEDS_D_INO handling.
(readdir_worker): Only try generating d_ino if it's 0.
Utilize namehash of directories fhandler. Call readdir_get_ino to
generate d_ino for "..".
(seekdir64): Keep dirent_set_d_ino flag.
* fhandler.h (enum dirent_states): Add dirent_get_d_ino.
(class fhandler_disk_file): Declare new private methods readdir_helper
and readdir_9x.
* fhandler_disk_file.cc (path_conv::hasgood_inode): New method to
evaluate if a filesystem has reliable inode numbers.
(fhandler_base::fstat_by_handle): Accomodate structure member name
change from IndexNumber to FileId.
(fhandler_base::fstat_helper): Call hasgood_inode here.
(fhandler_disk_file::opendir): Call fhaccess only for real files.
Don't append '*' to __d_dirname here, move to readdir_9x. On NT,
open directory handle here. Set dirent_get_d_ino and dirent_set_d_ino
flags according to wincap and filesystem.
(fhandler_disk_file::readdir_helper): New method to implement readdir
postprocessing only once.
(readdir_get_ino_by_handle): New static function.
(readdir_get_ino): New function to centralize inode number evaluation
in case inode number hasn't been returned by NtQueryDirectoryFile.
(fhandler_disk_file::readdir): Move old functionality to readdir_9x.
Call readdir_9x when on 9x/Me. Implement NT specific readdir here.
(fhandler_disk_file::readdir_9x): Move 9x specific readdir here.
(fhandler_disk_file::seekdir): Accomodate new NT readdir method.
(fhandler_disk_file::closedir): Ditto.
(fhandler_cygdrive::fstat): Set d_ino to namehash. Add comment.
(fhandler_cygdrive::opendir): Call get_namehash to prepare later
correct evaluation of d_ino.
(fhandler_cygdrive::readdir): Replace recursion with loop. Evaluate
drive's d_ino by calling readdir_get_ino.
* fhandler_proc.cc (fhandler_proc::readdir): Set dirent_saw_dot and
dirent_saw_dot_dot to avoid seeing . and .. entries twice.
* fhandler_process.cc (fhandler_process::readdir): Ditto.
* fhandler_registry.cc (fhandler_registry::readdir): Ditto.
* ntdll.h (STATUS_INVALID_PARAMETER): New define.
(STATUS_INVALID_LEVEL): New define.
(struct _FILE_INTERNAL_INFORMATION): Rename member IndexNumber to
FileId (as in Nebbitt).
* path.h (path_conv::hasgood_inode): Now implemented in
fhandler_disk_file.cc.
* wincap.h (wincaps::has_fileid_dirinfo): New element.
* wincap.cc: Implement above element throughout.
* winsup.h (readdir_get_ino): Add declaration.
* include/sys/dirent.h (struct dirent): Slightly rename structure
members to accomodate changes.
Remove __USE_EXPENSIVE_CYGWIN_D_INO handling and declaration of
__opendir_with_d_ino.
Windows 2000 and above. Clarify the comment about IP_TOS and move
to the place where the magic happens.
(get_ifconf): Remove unused code.
* wincap.h (wincaps::has_disabled_user_tos_setting): New element.
* wincap.cc: Implement above element throughout.
* init.cc (dll_entry): Rename is_wow64_proc to wow64_test_stack_marker.
Call wincap.init here before doing anything else. Use wincap.is_wow64
to determine if we're running in a WOW64 emulator.
* mmap.cc (MapViewNT): Don't use AT_ROUND_TO_PAGE in WOW64, it's
apparently not supported.
(mmap64): Don't create mappings beyond EOF, which would need to use
AT_ROUND_TO_PAGE, on WOW64.
* wincap.cc (wincap): Throw into the .cygwin_dll_common section.
(wincapc::init): Determine if running in WOW64 and set wow_64 flag.
* wincap.h (class wincapc): Add wow64 member.
(wincapc::is_wow64): New method.
Corinna Vinschen
Christopher Faylor