* fhandler.h (dev_console::is_fullscreen): Delete.
(dev_console::scroll_window): Return bool indicating success.
(dev_console::scroll_screen): New function.
(dev_console::clear_screen): New function.
(fhandler_console::clear_screen): Make __reg3.
(fhandler_console::cursor_set): Ditto.
(fhandler_console::cursor_get): Ditto.
(fhandler_console::cursor_rel): Ditto.
* fhandler_console.cc (dev_console::scroll_buffer): Adapt from
fhandler_console.
(fhandler_console::scroll_buffer): Use dev_console function.
(dev_console::is_fullscreen): Delete.
(dev_console::scroll_window): Return true if we cleared the screen.
Shrink/grow buffer first before scrolling to ensure that there is sufficient
space after scrolling.
(fhandler_console::clear_screen): Make reg3, use dev_console function.
(dev_console::clear_screen): New function adapted from fhandler_console.
(fhandler_console::cursor_set): Make __reg3.
(fhandler_console::cursor_rel): Ditto.
(fhandler_console::cursor_get): Ditto.
(fhandler_console::write): Fix "reverse index".
Corinna Vinschen [Fri, 21 Feb 2014 10:01:00 +0000 (10:01 +0000)]
* pwdgrp.h (pwdgrp::fetch_account_from_windows): Add bool parameter
to declaration, set to true by default.
* uinfo.cc (pwdgrp::fetch_account_from_windows): Add bool parameter
"ugid_caching". Only add account to ugid_cache if set to true.
* grp.cc (gr_ent::enumerate_local): Call fetch_account_from_windows
with ugid_caching parameter set to false.
* passwd.cc (pg_ent::enumerate_builtin): Ditto.
(pg_ent::enumerate_sam): Ditto.
(pg_ent::enumerate_ad): Ditto.
Corinna Vinschen [Tue, 18 Feb 2014 19:39:48 +0000 (19:39 +0000)]
* external.cc (cygwin_internal): Handle new CW_SETENT, CW_GETENT and
CW_ENDENT info types.
* grp.cc (setgrent_filtered): New function, called from cygwin_internal.
(getgrent_filtered): Ditto.
(endgrent_filtered): Ditto.
* passwd.cc (pg_ent::setent): Set state explicitely to from_cache.
(pg_ent::getent): Handle the fact that a DC has no SAM and enumerating
local accounts is equivalent to enumerating domain accounts.
(setpwent_filtered): New function, called from cygwin_internal.
(getpwent_filtered): Ditto.
(endpwent_filtered): Ditto.
* pwdgrp.h (setpwent_filtered): Declare.
(getgrent_filtered): Ditto.
(endgrent_filtered): Ditto.
(setpwent_filtered): Ditto.
(getpwent_filtered): Ditto.
(endpwent_filtered): Ditto.
* include/sys/cygwin.h (cygwin_getinfo_types): Add CW_SETENT, CW_GETENT,
and CW_ENDENT.
Corinna Vinschen [Mon, 17 Feb 2014 15:36:33 +0000 (15:36 +0000)]
* autoload.cc (ldap_abandon): Import.
(ldap_result): Import.
(ldap_searchW): Import.
(NetGroupEnum): Import.
(NetLocalGroupEnum): Import.
(NetUserEnum): Import.
* cygheap.h (class cygheap_pwdgrp): Add members enums and enum_tdoms.
(cygheap_pwdgrp::nss_db_enums): New inline method.
(cygheap_pwdgrp::nss_db_enum_tdoms): Ditto.
* cygtls.h (struct _local_storage): Drop unused members pw_pos and
grp_pos.
* grp.cc (grent): New static variable of class gr_ent.
(gr_ent::enumerate_caches): New method.
(gr_ent::enumerate_local): New method.
(gr_ent::getgrent): New method.
(setgrent): Call gr_ent method.
(getgrent32): Ditto.
(endgrent): Ditto.
* ldap.cc (sid_attr): Rename from nfs_attr.
(cyg_ldap::close): Abandon still running asynchronous search.
(cyg_ldap::fetch_ad_account): Reduce filter buffer size.
(cyg_ldap::enumerate_ad_accounts): New method.
(cyg_ldap::next_account): New method.
(cyg_ldap::fetch_posix_offset_for_domain): Reduce filter buffer size.
(cyg_ldap::fetch_unix_sid_from_ad): Ditto. Fix return value in case
no value has been read.
(cyg_ldap::fetch_unix_name_from_rfc2307): Reduce filter buffer size.
* ldap.h (class cyg_ldap): Add msg_id member.
(cyg_ldap::enumerate_ad_accounts): Declare.
(cyg_ldap::next_account): Declare:
* passwd.cc (pwent): New static variable of class pw_ent.
(pg_ent::clear_cache): New method.
(pg_ent::setent): New method.
(pg_ent::getent): New method.
(pg_ent::endent): New method.
(pg_ent::enumerate_file): New method.
(pg_ent::enumerate_builtin): New method.
(pg_ent::enumerate_sam): New method.
(pg_ent::enumerate_ad): New method.
(pw_ent::enumerate_caches): New method.
(pw_ent::enumerate_local): New method.
(pw_ent::getpwent): New method.
(setpwent): Call pw_ent method.
(getpwent): Ditto.
(endpwent): Ditto.
* pwdgrp.h (class pwdgrp): Define pg_ent, pw_ent and gr_ent as friend
classes.
(pwdgrp::add_account_post_fetch): Declare with extra bool parameter.
(pwdgrp::file_attr): New inline method.
(enum nss_enum_t): Define.
(class pg_ent): Define.
(class pw_ent): Define.
(class gr_ent): Define.
* tlsoffsets.h: Regenerate.
* tlsoffsets64.h: Ditto.
* uinfo.cc (cygheap_pwdgrp::init): Initialize enums and enum_tdoms.
(cygheap_pwdgrp::nss_init_line): Fix typo in preceeding comment.
Handle new "db_enum" keyword.
(pwdgrp::add_account_post_fetch): Take additional `bool lock' parameter
and acquire pglock before adding element to array if lock is true.
(pwdgrp::add_account_from_file): Call add_account_post_fetch with lock
set to true.
(pwdgrp::add_account_from_windows): Ditto in case of caching.
(pwdgrp::fetch_account_from_windows): Handle builtin aliases only
known to the domain controller. Only call NetLocalGroupGetInfo for
aliases.
Corinna Vinschen [Sun, 16 Feb 2014 16:02:18 +0000 (16:02 +0000)]
* miscfuncs.h (NT_readline::close): New function to close handle.
(NT_readline::~NT_readline): Call close.
* sec_auth.cc (verify_token): Use constructor to initialize tok_usersid.
* security.h (cygsid::cygsid): Add copy constructor taking cygsid as
source.
* DevNotes: Add entry cgf-000024.
* fhandler.h (dev_console::state): Remove trailing underscore.
(dev_console::args): Ditto.
(dev_console::nargs): Ditto.
(dev_console::info): Eliminate subclass.
(dev_console::dwEnd): New field.
(dev_console::scroll_window): New function.
(dev_console::is_fullscreen): Ditto.
(dev_console::fillin): Rename from fillin_info.
(fhandler_console::scroll_buffer): Rename from scroll_screen.
* fhandler_console.cc: Throughout s/dev_state\.info/dev_state/g. Accommodate
other name changes.
(dev_console::fillin): Accommodate rename. Notice max x/y written to. Forgo
memset if GetConsoleScreenBufferInfo fails.
(fhandler_console::scroll_buffer): Accommodate rename. Don't treat y
coordinate of zero as top of screen.
(dev_console::is_fullscreen): New function.
(dev_console::scroll_window): Ditto.
(fhandler_console::clear_screen): Just scroll the screen when clearing the
screen in a state where the screen buffer is bigger than the screen.
(fhandler_console::char_command): Try harder to get 'S' and 'T' working in the
presence of a screen buffer. Use temporary 'n' variable rather than
dev_state.args[0]. Use GNU ?: shortcut method.
* pinfo.cc (winpids::add): Always copy pinfo structure when winpid. Fill out
dwProcessId explicitly to handle exec from a windows process.
(winpids::enum_processes): Reorganize to iterate over known cygwin pids when
!winpid. Simplify logic. Don't do duplicate detection for winpid.
Corinna Vinschen [Thu, 13 Feb 2014 14:04:03 +0000 (14:04 +0000)]
* ldap.cc (cyg_ldap::fetch_posix_offset_for_domain): If domain name
has no dot, it's a Netbios name. Change the search filter expression
accordingly and filter by flatName. Add comment.
* uinfo.cc (cygheap_domain_info::init): Gracefully handle NULL
DnsDomainName and DomainSid members in DS_DOMAIN_TRUSTSW strutures.
Add comment. Fix comment preceeding fetching the mapping server
from registry.
(pwdgrp::fetch_account_from_file): Convert str to a local array.
(fetch_posix_offset): New static function.
(pwdgrp::fetch_account_from_windows): Add debug output in case
LookupAccountSidW fails. Simplify code by calling fetch_posix_offset
where appropriate. If LookupAccountSidW fails, check if the SID is
one of the known trusted domains. If so, create a more informative
account entry.
Corinna Vinschen [Tue, 11 Feb 2014 17:45:09 +0000 (17:45 +0000)]
* ldap.cc (rediscover_thread): Give argument a useful name.
* miscfuncs.cc (NT_readline::init): It's a really bad idea trying to
print a pointer to a PUNICODE_STRING as PUNICODE_STRING. Fix it.
* uinfo.cc (cygheap_domain_info::init): Print status codes as hex
values in debug output.
Corinna Vinschen [Tue, 11 Feb 2014 11:51:29 +0000 (11:51 +0000)]
* autoload.cc (NetLocalGroupGetInfo): Replace NetGroupGetInfo.
* cygheap.h (class cygheap_ugid_cache): Move ugid_cache_t type here
and rename.
(struct init_cygheap): Add cygheap_ugid_cache member "ugid_cache".
* pwdgrp.h (class ugid_cache_t): Remove here.
* fhandler_disk_file.cc (fhandler_base::fstat_by_nfs_ea): Accommodate
move of ugid_cache to cygheap.
* sec_helper.cc (get_sids_info): Ditto.
* uinfo.cc (ugid_cache): Remove.
(pwdgrp::fetch_account_from_windows): Define id_val globally.
Move SidTypeAlias handling into SidTypeUser/SidTypeGroup branch since
aliases are handled like groups in SAM. Accommodate move of ugid_cache
to cygheap. Consolidate code reading SAM comments into a single branch
for both, SidTypeUser and SidTypeAlias. For SidTypeAlias, fix thinko
and call NetLocalGroupGetInfo rather than NetGroupGetInfo. Simplify
code setting Cygwin primary group for SAM accounts. Add code to handle
UNIX uid/gid from SAM comment.
Corinna Vinschen [Mon, 10 Feb 2014 10:45:51 +0000 (10:45 +0000)]
* dcrt0.cc (child_info_spawn::handle_spawn): Call fixup_lockf_after_exec
with additional argument to specify if the process has been execed
or spawned.
* flock.cc (fixup_lockf_after_exec): Take bool parameter to handle
exec and spawn differently. In case of spawn, just give up POSIX
locks in favor of the still running parent. Add comments to explain.
Introduce reading passwd/group entries from SAM/AD. Introduce
/etc/nsswitch.conf file to configure it.
* Makefile.in (DLL_OFILES): Add ldap.o.
* autoload.cc: Import ldap functions from wldap32.dll.
(DsEnumerateDomainTrustsW): Import.
(NetGroupGetInfo): Import.
* cygheap.h (class cygheap_domain_info): New class to keep global
domain info.
(class cygheap_pwdgrp): New class to keep passwd/group caches and
configuration info from /etc/nssswitch.conf.
(struct init_cygheap): Add cygheap_domain_info member "dom" and
cygheap_pwdgrp member "pg".
* cygtls.h (struct _local_storage): Remove unused member "res".
Rearrange slightly, Add members pwbuf and grbuf to implement non-caching
passwd/group fetching from SAM/AD. Make pw_pos and pw_pos unsigned.
* fhandler_disk_file.cc (fhandler_base::fstat_by_nfs_ea): Add RFC 2307
uid/gid mapping.
* fhandler_process.cc: Drop including pwdgrp.h.
* fhandler_procsysvipc.cc: Ditto.
* fhandler_registry.cc (fhandler_registry::fstat): Set key uid/gid
to ILLEGAL_UID/ILLEGAL_GID rather than UNKNOWN_UID/UNKNOWN_GID.
* grp.cc (group_buf): Drop.
(gr): Drop.
(pwdgrp::parse_group): Fill pg_grp.
(pwdgrp::read_group): Remove.
(pwdgrp::init_grp): New method.
(pwdgrp::prep_tls_grbuf): New method.
(pwdgrp::find_group): New methods.
(internal_getgrsid): Convert to call new pwdgrp methods.
(internal_getgrnam): Ditto.
(internal_getgrgid): Ditto.
(getgrgid_r): Drop 2nd parameter from internal_getgrgid call.
(getgrgid32): Ditto.
(getgrnam_r): Ditto for internal_getgrnam.
(getgrnam32): Ditto.
(getgrent32): Convert to call new pwdgrp methods.
(internal_getgrent): Remove.
(internal_getgroups): Simplify, especially drop calls to
internal_getgrent.
* ldap.cc: New file implementing cyg_ldap class for LDAP access to AD
and RFC 2307 server.
* ldap.h: New header, declaring cyg_ldap class.
* passwd.cc (passwd_buf): Drop.
(pr): Drop.
(pwdgrp::parse_passwd): Fill pg_pwd.
(pwdgrp::read_passwd): Remove.
(pwdgrp::init_pwd): New method.
(pwdgrp::prep_tls_pwbuf): New method.
(find_user): New methods.
(internal_getpwsid): Convert to call new pwdgrp methods.
(internal_getpwnam): Ditto.
(internal_getpwuid): Ditto.
(getpwuid32): Drop 2nd parameter from internal_getpwuid call.
(getpwuid_r): Ditto.
(getpwnam): Ditto for internal_getpwnam.
(getpwnam_r): Ditto.
(getpwent): Convert to call new pwdgrp methods.
* path.cc (class etc): Remove all methods.
* path.h (class etc): Drop.
* pinfo.cc (pinfo_basic::pinfo_basic): Set gid to ILLEGAL_GID rather
than UNKNOWN_GID.
(pinfo_init): Ditto.
* pwdgrp.h (internal_getpwnam): Drop 2nd parameter from declaration.
(internal_getpwuid): Ditto.
(internal_getgrgid): Ditto.
(internal_getgrnam): Ditto.
(internal_getgrent): Drop declaration.
(enum fetch_user_arg_type_t): New type.
(struct fetch_user_arg_t): New type.
(struct pg_pwd): New type.
(struct pg_grp): New type.
(class pwdgrp): Rework to provide functions for file and db requests
and caching.
(class ugid_cache_t): New class to provide RFC 2307 uid map caching.
(ugid_cache): Declare.
* sec_acl.cc: Drop including pwdgrp.h.
* sec_auth.cc: Drop including dsgetdc.h and pwdgrp.h.
(get_logon_server): Convert third parameter to ULONG flags argument
to allow arbitrary flags values in DsGetDcNameW call and change calls
to this function throughout. Use cached account domain name rather
than calling GetComputerNameW.
(get_unix_group_sidlist): Remove.
(get_server_groups): Drop call to get_unix_group_sidlist.
(verify_token): Rework token group check without calling
internal_getgrent.
* sec_helper.cc (cygpsid::pstring): New methods, like string() but
return pointer to end of string.
(cygsid::getfromstr): Add wide character implementation.
(get_sids_info): Add RFC 2307 uid/gid mapping for Samba shares.
* security.cc: Drop including pwdgrp.h.
* security.h (DEFAULT_UID): Remove.
(UNKNOWN_UID): Remove.
(UNKNOWN_GID): Remove.
(uinfo_init): Move here from winsup.h.
(ILLEGAL_UID): Ditto.
(ILLEGAL_GID): Ditto.
(UNIX_POSIX_OFFSET): Define. Add lengthy comment.
(UNIX_POSIX_MASK): Ditto.
(MAP_UNIX_TO_CYGWIN_ID): Ditto.
(ILLEGAL_UID16): Move here from winsup.h.
(ILLEGAL_GID16): Ditto.
(uid16touid32): Ditto.
(gid16togid32): Ditto.
(sid_id_auth): New convenience macro for SID component access.
(sid_sub_auth_count): Ditto.
(sid_sub_auth): Ditto.
(sid_sub_auth_rid): Ditto.
(cygpsid::pstring): Declare.
(cygsid::getfromstr): Declare wide character variant.
(cygsid::operator=): Ditto.
(cygsid::operator*=): Ditto.
(get_logon_server): Change declaration according to source code.
* setlsapwd.cc (setlsapwd): Drop 2nd parameter from internal_getpwnam
call.
* shared.cc (memory_init): Call cygheap->pg.init in first process.
* syscalls.cc: Drop including pwdgrp.h.
* tlsoffsets.h: Regenerate.
* tlsoffsets64.h: Ditto.
* uinfo.cc (internal_getlogin): Drop gratuitious internal_getpwuid
call. Fix debug output. Overwrite user gid in border case of a
missing passwd file while a group file exists.
(pwdgrp::add_line): Allocate memory on cygheap.
(pwdgrp::load): Remove.
(ugid_cache): Define.
(cygheap_pwdgrp::init): New method.
(cygheap_pwdgrp::nss_init_line): New method.
(cygheap_pwdgrp::_nss_init): New method.
(cygheap_domain_info::init): New method.
(logon_sid): Define.
(get_logon_sid): New function.
(pwdgrp::add_account_post_fetch): New method.
(pwdgrp::add_account_from_file): New methods.
(pwdgrp::add_account_from_windows): New methods.
(pwdgrp::check_file): New method.
(pwdgrp::fetch_account_from_line): New method.
(pwdgrp::fetch_account_from_file): New method.
(pwdgrp::fetch_account_from_windows): New method.
* winsup.h: Move aforementioned macros and declarations to security.h.
* miscfuncs.h (class NT_readline): New class to implement line-wise
reading from file using native NT functions.
* miscfuncs.cc (NT_readline::init): New method.
* mount.cc (mount_info::from_fstab): Utilize NT_readline to read
fstab files.
* fhandler_disk_file.cc (fhandler_disk_file::fchown): Fix typo in
comment.
* mount.cc (mount_info::from_fstab): Use tmp_pathbuf rather than
stack for big local buffer.
* net.cc (cygwin_gethostname): Call GetComputerNameExA rather than
GetComputerNameA if gethostname failed.
* shared.cc (user_info::initialize): Fix formatting.
* include/sys/file.h: Define flock and accompanying macros if not
already defined in sys/_default_fcntl.h.
* aarch64/Makefile.in (RDIMON_SCRIPTS): Rule to build in-tree copies
of scripts.
(all): Build the in-tree copies of the scripts.
(clean): Also delete the in-tree copies of the scripts.
* fhandler.h (cltype): Add cl_buf_beg, cl_buf_end.
* fhandler_console.cc (dev_console::console_attrs::set_cl_x): Honor buffer
locations.
(dev_console::console_attrs::set_cl_y): Ditto.
(fhandler_console::write): On reset, use absolute positioning to go to
beginning of buffer. Clear entire buffer.
DJ Delorie [Thu, 30 Jan 2014 02:46:34 +0000 (02:46 +0000)]
* msp430/Makefile.in (crt0-minrt.o, crtn-minrt.o): New. Build
from crt0.S with -DMINRT.
(CRT_OBJS): Expand.
(crt_%.o): New rule pattern. Build multiple objects from crt0.S.
* msp430/crt0.S: Further break out functionality. Support -DMINRT
that omits all init/fini logic.
* msp430/crtn.S: Likewise.
* msp430/msp430-sim.ld: Wildcard all .crt_* sections, sorted.
* msp430/msp430.ld: Likewise.
* msp430/msp430xl-sim.ld: Likewise.
* faq-setup.xml: Minor snapshot instruction rewording. Update discussion about
setup*.exe.
* faq-using.xml: Update information about setup*.exe.
* faq-what.xml: Ditto.
* gendef (_setjmp (x86)): Save FPU control word location in sequential
location. Adjust sigstack save accordingly.
(_longjmp (x86)): Ditto for restore.
Corinna Vinschen [Mon, 27 Jan 2014 20:08:36 +0000 (20:08 +0000)]
* gendef (sigdelayed (x86_64)): Save and restore FPU control word.
(_sigdelayed (x86)): Ditto. Save and restore XMM registers. Add
comment.
(_setjmp (x86)): Save FPU control word, following FreeBSD here.
(_longjmp (x86)): Restore FPU control word.
Corinna Vinschen [Thu, 23 Jan 2014 17:02:30 +0000 (17:02 +0000)]
* security.h (open_local_policy): Remove declaration.
(lsa_open_policy): Declare.
(lsa_close_policy): Declare.
* sec_auth.cc (lsa_open_policy): Rename from open_local_policy. Take
server name as parameter. Return NULL in case of error, rather than
INVALID_HANDLE_VALUE.
(lsa_close_policy): Rename from close_local_policy. Make externally
available. Get handle by value.
(create_token): Convert call to open_local_policy/close_local_policy
according to aforementioned changes.
(lsaauth): Ditto.
(lsaprivkeyauth): Ditto.
* setlsapwd.cc (setlsapwd): Ditto.
Corinna Vinschen [Fri, 17 Jan 2014 11:01:46 +0000 (11:01 +0000)]
* include/sys/file.h (LOCK_SH): Drop definition in favor of new
definitions in newlib.
(LOCK_EX): Ditto.
(LOCK_NB): Ditto.
(LOCK_UN): Ditto.
(flock): Ditto.
(F_OK): Drop. Already correctly defined in unistd.h.
(X_OK): Ditto.
(W_OK): Ditto.
(R_OK): Ditto.
Corinna Vinschen [Fri, 17 Jan 2014 10:55:32 +0000 (10:55 +0000)]
Introduce _STDIO_BSD_SEMANTICS flag to switch fclose/exit file flushing
semantics from POSIX to BSD.
* libc/stdio/fclose.c (_fclose_r): Conditionalize file flushing on
_STDIO_BSD_SEMANTICS. Call __sflush_r rather than _fflush_r. Add
comment.
* libc/stdio/fflush.c (__sflushw_r): New function, only available
if _STDIO_BSD_SEMANTICS is defined.
* libc/stdio/findfp.c (_cleanup_r): Call _fwalk_reent rather than
_fwalk. Conditionalize cleanup function call on _STDIO_BSD_SEMANTICS.
Add comments. Add FIXME.
* libc/stdio/local.h (__sflushw_r): Declare if _STDIO_BSD_SEMANTICS is
defined.
Jeff Johnston [Fri, 10 Jan 2014 23:04:01 +0000 (23:04 +0000)]
2014-01-10 Jeff Johnston <jjohnstn@redhat.com>
* arm/configure.in: Revert previous fix and change host_makefile_frag
to calculate the absolute location of srcdir/../config/default.mh.
* arm/configure: Regenerated.
* exceptions.h (cygwin_exception::open_stackdumpfile): Move old function into
class.
(cygwin_exception::h): New member.
(cygwin_exception::cygwin_exception): Initialize h to NULL.
* exceptions.cc (cygwin_exception::open_stackdumpfile): Move into
cygwin_exception class. Use 'h' class member.
(cygwin_exception::dumpstack): Close stack dump file handle if opened.
* fhandler.h: Update copyright.
(cltype): New enum.
(dev_console::console_attrs): Define struct name.
(dev_console::console_attrs::set_cl_x): New function.
(dev_console::console_attrs::set_cl_y): New function.
(fhandler_console::clear_screen): Redefine input params.
* fhandler_console.cc: Update copyright. Throughout, reflect change in
arguments to fhandler_console::clear_screeen.
(fhandler_console::mouse_aware): Simplify logic slightly.
(fhandler_console::scroll_screen): Remove hopefully obsolete win95 code.
(dev_console::console_attrs::set_cl_x): New function.
(dev_console::console_attrs::set_cl_y): New function.
(fhandler_console::clear_screen): Redefine input params. Calculate position
based on enum value.
(region_split): Change arguments. Simplify.
(ReadConsoleOutputWrapper): Remove coord argument since we now always use 0, 0.
Send extra arguments to region_split.
* fhandler_console.cc (region_split): New function.
(delta): Ditto.
(ReadConsoleOutputWrapper): Ditto.
(fhandler_console::char_command): Use ReadConsoleOutputWrapper to avoid OOM
condition from ReadConsoleOutputW. Add more debugging.
Jeff Johnston [Mon, 23 Dec 2013 19:21:07 +0000 (19:21 +0000)]
2013-12-22 JF Bastien <jfb@chromium.org>
* libc/include/limits.h: Define LLONG_MIN, LLONG_MAX and ULLONG_MAX
for C++11 too.
* libc/include/stdlib.h: Define struct lldiv_t, _Exit, atoll, llabs
and lldiv for C99 and C++11. Move wcstold to wchar.h.
* libc/include/wchar.h: Define WCHAR_MIN and WCHAR_MAX according to
__WCHAR_UNSIGNED__ if it is provided, and correct the limit when
unsigned (to 32 all-1 bits, not 31). Define FILE as in stdio.h.
Move wcstold from stdlib.h here.