Commit Graph

136 Commits

Author SHA1 Message Date
Corinna Vinschen c5b1a133c0 * cygheap.h (shared_prefix): De-const.
(shared_prefix_buf): Add static buffer for shared prefix to avoid
	additional allocation.
	* cygheap.cc (cygheap_init): Set cygheap->shared_prefix to
	cygheap->shared_prefix_buf and strcpy.
2007-07-18 11:15:51 +00:00
Corinna Vinschen e6fbf13e48 * cygheap.cc (cygheap_init): Fix formatting. Remove comment. Set
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.
2007-03-29 16:37:36 +00:00
Corinna Vinschen 5d93eb069e * cygheap.cc (cygheap_init): Add TODO comment. 2007-01-15 11:01:23 +00:00
Corinna Vinschen f51b396579 * cygheap.cc (_csbrk): Fix off-by-one error.
* cygwin.sc: Give .cygheap a minimum size of 512K.
2007-01-12 19:40:20 +00:00
Christopher Faylor 578e142a2b * cygheap.cc (init_cygheap::close_ctty): Remove obsolete code.
* dcrt0.cc (child_info_spawn::handle_spawn): Signal ready after we've run
fixup_after_exec.
* dtable.cc (dtable::fixup_after_exec): Add debugging output.
* fhandler_tty.cc (fhandler_pty_master::doecho): Use class version of
to_master.
(fhandler_tty_common::close): Remove obsolete code.
(fhandler_tty_slave::fixup_after_exec): Don't close, since this is done in
dtable's fixup_after_exec.  (revisit later?)
(fhandler_pty_master::fixup_after_exec): Ditto.
2006-06-03 06:35:10 +00:00
Christopher Faylor 2346864a45 * cygheap.cc (cygheap_fixup_in_child): Don't close parent handle here. Let the
caller do that.
* dcrt0.cc (child_info_spawn::handle_spawn): Close parent handle here to allow
fixup_after_exec functions to use it.
* cygtls.cc (_cygtls::call2): Avoid calling exit thread if called with
*crt0_1 functions.
* cygtls.h (_cygtls::isinitialized): Check that we actually have a tls before
seeing if it is initialized.
* gendef (_sigfe_maybe): Ditto.
* dcrt0.cc (dll_crt0_1): Remove static, use just one argument.
* dll_init.cc (dllcrt0_info): New structure.
(dll_dllcrt0): Change into a front-end to renamed dll_dllcrt0_1 so that we'll
always be assured of having something like a tls.
(dll_dllcrt0_1): New function, basically renamed from from dll_dllcrt0.
Unconditionally call _my_tls.init_exception_handler now that we are assured of
having a tls.  Change variable name from "linking" to "linked".
* winsup.h (dll_crt0_1): Declare.
(dll_dllcrt0_1): Ditto.
2006-06-02 00:09:50 +00:00
Christopher Faylor 974f27a51a * cygheap.cc (init_cygheap::manage_console_count): Turn console control handler
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.
2006-03-16 02:57:37 +00:00
Christopher Faylor 247ac234f4 * cygheap.cc (init_cygheap::manage_console_count): Revert previous change.
Handle this a different way.
* external.cc (cygwin_internal): Accommodate extra hook_or_detect_cygwin
argument.
* hookapi.cc (cygwin_internal): Fill in subsys variable with the subsystem of
the executable.
* spawn.cc (av::iscui): New variable.
(spawn_guts): Hide window when we don't have a console and this isn't
NT/XP/2003.
(av::fixup): Set iscui flag.
* winsup.h (hook_or_detect_cygwin): Accommodate extra argument.
2005-12-21 17:14:34 +00:00
Christopher Faylor d4c8d84da6 * cygheap.cc (init_cygheap::manage_console_count): Don't call FreeConsole on
9x/Me.
2005-12-21 16:09:25 +00:00
Christopher Faylor ad02bb70e3 * winsup.h (child_copy): Change prototype to match new functionality.
* cygheap.cc (cygheap_fixup_in_child): Accommodate new child_copy arguments.
* dcrt0.cc (dll_data_start): Move definition here from fork.
(dll_data_end): Ditto.
(dll_bss_start): Ditto.
(dll_bss_end): Ditto.
(handle_fork): New function.  Called when forked to deal with fork issues and
copy data to this process from the parent.
(dll_crt0_0): Call handle_fork when _PROC_FORK condition.
(dll_crt0): Don't copy user_data when we've forked.  Don't zero first element
of main_environment ever.
(cygwin_dll_init): Ditto.
* fork.cc (child_copy): Rename from fork_copy and change arguments so that each
pair of things to copy gets its own descriptor.
(frok::child): Remove fixup_mmaps_after_fork call here.  Move to handle_fork in
dcrt0.cc.
(frok::parent): Use child_copy rather than fork_copy and accommodate changes in
parameters.
* exceptions.cc (setup_handler): Delay test of whether we're locked until after
GetThreadContext has been called since there are apparently cases where
SuspendThread does not cause an immediate thread suspension.
2005-12-17 04:36:39 +00:00
Christopher Faylor 09b0109620 Remove unneeded whitespace.
* cygtls.cc (_cygtls::set_state): Delete.
(_cygtls::reset_exception): Ditto.
(_cygtls::init_thread): Set initialized state directly here.
(_cygtls::push): Remove exception argument.  Don't treat exceptions specially.
* cygtls.h (_cygtls::push): Ditto.
(_cygtls::isinitialized): Don't treat exceptions specially.
(_cygtls::reset_exception): Delete.
(_cygtls::set_state): Ditto.
(_cygtls::handle_exceptions): Don't push ebp on the stack prior to calling
sig_send.  Just set incyg instead.
(_cygtls::interrupt_setup): Accommodate _cygtls::push argument change.
(_cygtls::interrupt_now): Ditto.
(setup_handler): Don't treat exceptions specially.
* gendef (longjmp): Always zero incyg flag.
2005-12-05 20:20:18 +00:00
Corinna Vinschen f90e23f271 * autoload.cc (NtCreateSection): Define.
* cygheap.cc (_csbrk): Call getpagesize instead of getshmlba.
	* dcrt0.cc (dll_crt0_0): Call mmap_init.
	* external.cc (cygwin_internal): Call getpagesize instead of getshmlba.
	* fhandler.h (fhandler_base::mmap): Change access to prot parameter.
	(fhandler_base::fixup_mmap_after_fork): Ditto.
	(fhandler_disk_file::mmap): Ditto.
	(fhandler_disk_file::fixup_mmap_after_fork): Ditto.
	(fhandler_dev_mem::mmap): Ditto.
	(fhandler_dev_mem::fixup_mmap_after_fork): Ditto.
	* fhandler_mem.cc (fhandler_dev_mem::write): Call getsystempagesize
	instead of getpagesize.
	(fhandler_dev_mem::read): Ditto.
	(fhandler_dev_mem::fstat): Ditto.
	(fhandler_dev_mem::mmap): Move to mmap.cc.
	(fhandler_dev_mem::munmap): Ditto.
	(fhandler_dev_mem::msync): Ditto.
	(fhandler_dev_mem::fixup_mmap_after_fork): Ditto.
	* fhandler_proc.cc (format_proc_meminfo): Call getsystempagesize
	instead of getpagesize.
	* fhandler_process.cc (format_process_stat): Ditto.
	(format_process_status): Ditto.
	(get_mem_values): Ditto.
	* mmap.cc: Fix formatting.  Try to make more readable and modular.
	Take advantage of pagesize==granularity.
	(gen_protect): New static function to evaluate Windows
	protection bits from POSIX protection and flags.
	(gen_access): Ditto for Windows access mode.
	(VirtualProt9x): Wrapper function to call VirtualProtect on 9x.
	(VirtualProtNT): Ditto for NT.
	(VirtualProtEx9x): Ditto for VirtualProtectEx on 9x.
	(VirtualProtExNT): Ditto for NT.
	(CreateMapping9x): Wrapper function for creating a mapping handle on 9x.
	(CreateMappingNT): Ditto for NT.
	(MapView9x): Wrapper function to map a view on 9x.
	(MapViewNT): Ditto for NT.
	(mmap_funcs_9x): Structure containing function pointers to wrapper
	functions for 9x.
	(mmap_funcs_nt): Ditto for NT.
	(mmap_func): Pointer to wrapper functions used in subsequent code.
	(mmap_init): Initialize mmap_func depending on OS.
	(class mmap_record): Use sensible member names.  Add POSIX protection
	member. Drop Windows access flags member.  Constify more methods.
	Use accessors instead of direct member access inside of own methods.
	(mmap_record::gen_protect): Class wrapper to evaluate matching
	Windows protection bits.
	(mmap_record::gen_access): Ditto for Windows access flags.
	(mmap_record::compatible_flags): New function to check if flags are
	compatible with flags of existing map.
	(list::add_record): Drop offset and length arguments.
	(class map): Change counters to unsigned.  Match usage throughout.
	(mmapped_areas): Convert from pointer to global struct.
	(mmap_record::alloc_page_map): Simplify.
	(mmap_record::map_pages): Ditto.
	(mmap_record::fixup_page_map): Delete.
	(mmap64): Simplify.  Add workaround for Windows 98 bug.  Fix bug on
	NT that existing anonymous mappings weren't searched for a match.
	(munmap): Add workaround for Windows 98 bug.
	(msync): Simplify.
	(mprotect): Handle existing maps correctly.
	(mlock): Add local pagesize variable and enlightening comment.
	(fhandler_disk_file::mmap): Main functionality now in CreateMapping/
	MapView wrapper functions.
	(fhandler_disk_file::fixup_mmap_after_fork): Call MapView wrapper.
	(fhandler_dev_mem::mmap): Moved from fhandler_mem.cc.  Simplify by
	calling MapViewNT.
	(fhandler_dev_mem::munmap): Moved from fhandler_mem.cc.
	(fhandler_dev_mem::msync): Ditto.
	(fhandler_dev_mem::fixup_mmap_after_fork): Ditto.  Call MapViewNT.
	(fixup_mmaps_after_fork): Restructure and hopefully speed up loop for
	setting protection and memory content on MAP_PRIVATE maps.
	* ntdll.h (AT_ROUND_TO_PAGE): Remove define.
	(AT_EXTENDABLE_FILE): Add define.
	(NtCreateSection): Add prototype.
	* syscalls.cc (getpagesize): Return granularity as pagesize now.
	(getsystempagesize): New function to retrieve "real" pagesize.
	(getshmlba): Delete since it's replaced by getpagesize now.
	* wincap.h (wincaps::has_mmap_alignment_bug): New element.
	* wincap.cc: Implement above element throughout.
	* winsup.h (getshmlba): Drop prototype.
	(getsystempagesize): Add prototype.
	(mmap_init): Ditto.
	* include/sys/mman.h: (Not yet) define MAP_NORESERVE.
2005-11-28 22:32:29 +00:00
Christopher Faylor 59297e0464 * cygheap.h (init_cygheap::manage_console_count): Declare new function.
(init_cygheap::console_count): Renamed from open_fhs.  Make private.
* cygheap.cc (init_cygheap::manage_console_count): Define new function.
* dtable.cc (dtable::fixup_after_exec): Always call fixup_after_exec on
elements of fd even when they are about to be closed.
* fhandler.h (report_tty_counts): Remove open_fhs from debugging output.
* fhandler_console.cc (fhandler_console::open): Use manage_console_count rather
than manipulating count directly.
(fhandler_console::close): Ditto.
(fhandler_console::fixup_after_fork): Ditto.
(fhandler_console::fixup_after_exec): Ditto.  Don't close handles if
close_on_exec.
* fhandler_tty.cc (fhandler_tty_slave::open): Use manage_console_count() rather
than manipulating count directly.  Reflect change in arguments to
report_tty_counts().
(fhandler_tty_slave::close): Ditto for both.
(fhandler_tty_slave::dup): Ditto for both.
(fhandler_tty_slave::ioctl): Use myctty() rather than raw ctty #.
(fhandler_tty_slave::fixup_after_fork): Reflect change in arguments to
report_tty_counts().
(fhandler_tty_master::init_console): Use manage_console_count() rather than
manipulating count directly.
* fhandler_clipboard.cc (fhandler_dev_clipboard::fixup_after_exec): Don't
perform any operations if close_on_exec.
* fhandler_dsp.cc (fhandler_dev_dsp::fixup_after_exec): Ditto.
* fhandler_raw.cc (fhandler_dev_raw::fixup_after_exec): Ditto.
* fhandler_serial.cc (fhandler_serial::fixup_after_exec): Ditto.
* pinfo.h (_pinfo::_ctty): Declare new function.
(myctty): Declare new macro.
(__ctty): Declare new macro.
* pinfo.cc (_pinfo::_ctty): Define new function.
(_pinfo::set_ctty): Use manage_console_count() rather than manipulating count
directly.
* signal.cc (kill_pgrp): Use myctty() and __ctty() macros rather than raw ctty
#.
* syscalls.cc (setsid): Ditto.  Use manage_console_count() rather than
manipulating count directly.
2005-11-14 04:28:45 +00:00
Corinna Vinschen f1cdab8563 * cygheap.cc (cygheap_init): Add GLOBAL_PRIV to hProcToken explicitely
since hProcImpToken isn't initialized here.
	* shared.cc (open_shared): Always print mapname instead of name in
	debug output.
2005-09-27 19:04:38 +00:00
Christopher Faylor 936e4018b6 * cygheap.cc (cygheap_fixup_in_child): It's not just for exec.
* cygtls.h (struct _cygtls::thread_handle): New field.
* dcrt0.cc (exit_lock): Remove declaration.
* winsup.h (exit_lock): Add declaration.
* exceptions.cc (sigpacket::process): Properly return after signal_exit.
* pinfo.cc (pinfo::exit): Only exit the process if _my_tls.thread_handle has
not been filled out -- which should be an impossible event.
* sigproc.cc (sigproc_terminate): Fillout _my_tls.thread_handle to provide
something for wait_sig to wait for.  Use the siginfo_t version of sig_send and
fill out the tls argument with _my_tls.
(wait_sig): Wait for the thread specified in pack.tls or (for now) complain
bitterly if it doesn't exit.
2005-09-23 03:35:41 +00:00
Christopher Faylor 150f3bd168 * sigproc.cc (no_signals_available): Return true if sending to self from the
signal thread.
(wait_sig): Correct so that WaitForSingleObject is called when hMainThread is
!= 0, rather than the reverse.
* cygheap.cc (cygheap_fixup_in_child): Clarify potential error message.
* fork.cc (fork_copy): Cosmetic change.
2005-09-16 01:47:09 +00:00
Christopher Faylor a743e3b940 * cygheap.cc (cygheap_init): Eliminate debugging #if.
* fork.cc (fork_parent): Don't issue errors if "somebody" has set the
PID_EXITED flag on a child.  Don't close process handle if it has potentially
already been closed.
* pinfo.cc (winpids::add): Eliminate PID_ALLPIDS handling which was obsoleted
by previous changes.
* spawn.cc (av::fixup): Do win16 detection for .com files.  Make sure that
buffer has been unmapped in all cases.
2005-09-05 17:30:04 +00:00
Christopher Faylor be7d909395 Grr. REVERT erroneous checkin. AGAIN. 2005-09-02 17:35:22 +00:00
Christopher Faylor 414808f9e0 * Makefile.in (CXXFLAGS): Use 'override' to correctly set flags to generate
dependencies when invoked from top-level make.
2005-09-02 17:12:37 +00:00
Christopher Faylor b8a66ba2cd revert inexplicable previous checkin 2005-09-02 04:51:09 +00:00
Christopher Faylor 7a1bf10a84 bad_addresses 2005-09-02 04:46:51 +00:00
Christopher Faylor 1cd065837c white space 2005-08-12 02:39:13 +00:00
Christopher Faylor 6a7bea70f0 * Makefile.in (dtable_CFLAGS): Use -fomit-frame-pointer and -fcheck-new.
* cygheap.cc (cmalloc): Only emit system_printf warnings on failure if
DEBUGGING.
(crealloc): Ditto.
(ccalloc): Ditto.
* dtable.cc (build_fh_name): Treat NULL return from cnew as indicative of
EMFILE condition.
(build_fh_dev): Ditto.
(dtable::dup_worker): Handle NULL return from build_fh_pc.
(dtable::vfork_child_dup): Trust dup_worker to set errno.
* fhandler.h (fhandler_base::new): Mark as nothrow.
2005-08-08 04:06:07 +00:00
Christopher Faylor e8454a3400 * child_info.h (child_info::sync): Pass pid and HANDLE rather than using pinfo.
(child_info::child_info): Accept an argument controlling whether to create
proc_subproc.
(child_info_spawn::child_info_spawn): Ditto.
* sigproc.cc (child_info::child_info): Ditto.
(child_info_spawn::child_info_spawn): Ditto.
(child_info::sync): Use passed in pid and HANDLE.
* fork.cc (fork_parent): Reflect additional arguments required for
child_info::sync.
* hookapi.cc (hook_or_detect_cygwin): Rename.  Change so that NULL 'fn'
argument just returns "true", indicating that program uses cygwin1.dll.
* spawn.cc (av::win16_exe): New element.
* spawn.cc (av::iscygwin): New element.
(av::fixup): New function.
(spawn_guts): Protect against SEGV.  Use fixup function to detect when it is
safe to wait for a spawned (as opposed to an execed) program.  Reflect changes
in child_info::sync arguments.
* external.cc (cygwin_internal): Reflect function renaming to
hook_or_detect_cygwin.
* cygheap.cc (cygheap_fixup_in_child): Close handle after debug fixup has been
done to prevent false positives in handle collision.
* exceptions.cc (try_to_debug): Notify debugger if already being debugged.
2005-07-17 00:51:03 +00:00
Christopher Faylor 0c55f6ed60 Eliminate (void) cast on standalone function calls throughout. 2005-07-06 20:05:03 +00:00
Christopher Faylor f9fb1149d5 Revert 2005-05-30 close_all_files changes.
* spawn.cc (spawn_guts): When execing, close all files after the child has
synced with us.
2005-06-02 02:36:50 +00:00
Christopher Faylor 5d4a672193 * cygheap.cc (cygheap_end): Remove bogus section attribute.
* cygwin.sc: Make __cygheap_mid absolute.  Remove unused _cygheap_foo.
2005-06-01 04:00:40 +00:00
Christopher Faylor ce95c6407e * child_info.h (child_info::cygheap_h): Delete.
(child_info::dwProcessId): New field.
* cygheap.cc (init_cheap): Delete.
(dup_now): Ditto.
(cygheap_setup_for_child): Ditto.
(cygheap_setup_for_child_cleanup): Ditto.
(cygheap_fixup_in_child): Simplify.  Use new "child_copy" function to copy heap
from parent.
(_csbrk): Don't attempt allocation if within cygheap section.  Fix so that more
than one allocation will succeed.
(cygheap_init): Reset possibly-nonzero region to zero.
* cygheap.h (cygheap_setup_for_child): Delete declaration.
(cygheap_setup_for_child_cleanup): Ditto.
(cygheap_start): Define as an array.
* cygwin.sc: Modernize.  Remove unneeded sections.  Define cygheap here.
* dcrt0.cc (do_exit): Reflect argument change to close_all_files.
* dtable.cc (dtable::vfork_parent_restore): Ditto.
* dtable.h: Ditto.
* fhandler.h: Ditto.
* fork.cc (fork_copy): Call ReadProcessMemory if there is no thread
(indicating that we're execing).
(fork_child): Don't mess with hParent.
(fork_parent): Remove hParent stuff.  It happens earlier now.  Remove call to
cygheap_setup_for_child* stuff.
(fork): Put child_info_stuff in grouped structure.  Issue error if parent
handle is not set.
(child_copy): New function.
* sigproc.cc (child_info::child_info): Put cygheap settings here.  Set parent
handle.
(child_info::~child_info): Close parent handle if it exists.
* spawn.cc (spawn_guts): Reorganize so that ciresrv is allocated at only the
last minute so that cygheap changes are reflected.  Delete cygheap_setup*
calls.
* syscalls.cc (close_all_files): Add an argument to flag when the fd entry
should be released.
* winsup.h (close_all_files): Add an argument to close_all_files declaration.
Declare child_copy.
2005-06-01 03:46:56 +00:00
Christopher Faylor 322c131f9f * sync.h (muto::operator int): New operator.
(locker): Remove unused class.
(new_muto): Delete.
(new_muto1): Ditto.
(new_muto_name): Ditto.
* cygheap.cc (cygheap_setup_for_child): Reflect use of static storage for muto
rather than pointer.
(_csbrk): Ditto.
(_cmalloc): Ditto.
(_cmalloc): Ditto.
(_cfree): Ditto.
* cygheap.h (cwdstuff::cwd_lock): Ditto.
(cwdstuff::get_drive): Ditto.
* cygmalloc.h (__malloc_lock): Ditto.
(__malloc_unlock): Ditto.
* cygtls.cc (sentry::lock): Ditto.
(sentry::sentry): Ditto.
(~sentry): Ditto.
(_cygtls::init): Ditto.
* dcrt0.cc: Ditto.
(cygwin_atexit): Ditto.
(cygwin_exit): Ditto.
* debug.cc (lock_debug::locker): Ditto.
(lock_debug::lock_debug): Ditto.
(lock_debug::unlock): Ditto.
(debug_init): Ditto.
* dtable.cc (dtable::init_lock): Ditto.
* dtable.h (dtable::lock_cs): Ditto.
(dtable::lock): Ditto.
(dtable::unlock): Ditto.
* exceptions.cc (mask_sync): Ditto.
(sighold): Ditto.
(set_process_mask_delta): Ditto.
(set_signal_mask): Ditto.
(events_init): Ditto.
* grp.cc (pwdgrp::pwdgrp): Ditto.
* malloc_wrapper.cc (mallock): Ditto.
(malloc_init): Ditto.
* path.cc (cwdstuff::cwd_lock): Ditto.
(cwdstuff::get_hash): Ditto.
(cwdstuff::get_hash): Ditto.
(cwdstuff::init): Ditto.
(cwdstuff::set): Ditto.
(cwdstuff::get): Ditto.
* pwdgrp.h (pwdgrp::pglock): Ditto.
(pwdgrp::refresh): Ditto.
* sigproc.cc (sync_proc_subproc): Ditto.
(get_proc_lock): Ditto.
(proc_subproc): Ditto.
(_cygtls::remove_wq): Ditto.
(proc_terminate): Ditto.
(sigproc_init): Ditto.
* timer.cc (lock_timer_tracker::protect): Ditto.
(lock_timer_tracker::lock_timer_tracker): Ditto.
(lock_timer_tracker::~lock_timer_tracker): Ditto.
* wininfo.cc (wininfo::_lock;): Ditto.
(wininfo::winthread): Ditto.
(operator HWND): Ditto.
(wininfo::lock): Ditto.
(wininfo::release): Ditto.
* wininfo.h (wininfo::_lock;): Ditto.
2005-04-05 04:31:00 +00:00
Corinna Vinschen f4a1f8a1db * cygheap.cc (cygheap_init): Accomodate set_process_privilege change.
* cygheap.h (cygheap_user::curr_primary_token): New member.
	(cygheap_user::primary_token): New method.
	(cygheap_user::deimpersonate): Always revert to processes'
	impersonation token.
	(cygheap_user::reimpersonate): Set processes' or setuid token as
	necessary.
	(cygheap_user::has_impersonation_tokens): Look for curr_primary_token
	value.
	(cygheap_user::close_impersonation_tokens): Close curr_primary_token
	here if necessary.  Don't reset token values to NO_IMPERSONATION since
	that's done in uinfo_init anyway.
	(init_cygheap::luid): New LUID array keeping privilege LUIDs.
	* cygtls.cc (_cygtls::init_thread): Call cygheap->user.reimpersonate.
	* dcrt0.cc (hProcToken): New global variable to keep process token.
	(hProcImpToken): Ditto for process impersonation token.
	(dll_crt0_0): Open process token here once.  Duplicate to create
	hProcImpToken.
	(dll_crt0_1): Call set_cygwin_privileges.
	* environ.cc (allow_ntea): Drop duplicate declaration.
	(allow_smbntsec): Ditto.
	(set_traverse): Only set allow_traverse here.
	(environ_init): Ditto.
	* fhandler_disk_file.cc (fhandler_disk_file::fchmod): Drop call to
	enable_restore_privilege.
	(fhandler_disk_file::fchown): Ditto.
	(fhandler_disk_file::facl): Ditto.
	* fork.cc (fork_child): Move call to cygheap->user.reimpersonate after
	syn with parent. Call set_cygwin_privileges.
	* grp.cc (internal_getgroups): Use hProcImpToken instead of opening
	process token.
	* path.cc (fs_info::update): Bypass traverse checking when retrieving
	volume information using push/pop_thread_privileges.
	* registry.cc (load_registry_hive): Drop setting restore privilege
	since it's already set if available.
	* sec_helper.cc: Include cygtls.h.
	(cygpriv): Privilege string array.
	(privilege_luid): New function, evaluate LUID from cygpriv_idx.
	(privilege_luid_by_name): New function, evaluate LUID from privilege
	string.
	(privilege_name): New function, evaluate privilege string from
	cygpriv_idx.
	(set_privilege): New static function called by set_process_privilege
	and set_thread_privilege.  Call privilege_luid to get privilege LUID.
	Fix bug in return value evaluation. Improve debug output.
	(set_cygwin_privileges): New function.
	(set_process_privilege): Remove.
	(enable_restore_privilege): Remove.
	* security.cc (allow_traverse): New global variable.
	(sys_privs): Change type to cygpriv_idx and store privilege indices
	instead of strings.
	(SYSTEM_PRIVILEGES_COUNT): Renamed from SYSTEM_PERMISSION_COUNT.
	(get_system_priv_list): Don't use numerical constant in malloc call.
	Use privilege_luid to get privilege LUIDs.
	(get_priv_list): Call privilege_luid_by_name to get LUIDs. Improve
	inner privilege LUID comparison loop.
	(create_token): Enable create token privilege using
	push/pop_self_privileges. Use hProcToken instead of opening process
	token. Use default DACL when duplicating token.
	(subauth): Enable tcb privilege using push/pop_self_privileges.
	Use sec_none instead of homw made security attributes when duplicating
	token.
	(check_file_access): Don't duplicate access token, use active
	impersonation token as is.
	* security.h (enum cygpriv_idx): New enumeration type enumerating
	possible privileges.
	(privilege_luid): Declare new function.
	(privilege_luid_by_name): Ditto.
	(privilege_name): Ditto.
	(allow_traverse): Declare.
	(set_privilege): Declare function.
	(set_process_privilege): Define as macro.
	(enable_restore_privilege): Remove declaration.
	(_push_thread_privilege): Define macro.
	(push_thread_privilege): Ditto.
	(pop_thread_privilege): Ditto.
	(pop_self_privilege): Ditto.
	* spawn.cc (spawn_guts): Use cygheap->user.primary_token instead of
	cygheap->user.token.
	* syscalls.cc (statvfs): Bypass traverse checking when retrieving
	volume information using push/pop_thread_privileges. Rearrange code
	to simplify push/pop bracketing.
	(seteuid32): Use hProcToken instead of opening process token. Call
	cygheap->user.deimpersonate instead of RevertToSelf.  Create
	impersonation token from primary internal or external token.  Set
	cygheap->user.curr_primary_token and cygheap->user.current_token
	privileges once here.  Drop "failed" and "failed_ptok" labels.
	Drop setting DefaultDacl of process token.
	(setegid32): Use hProcToken and hProcImpToken instead of opening
	process token. Always reimpersonate afterwards.
	* uinfo.cc (cygheap_user::init): Use hProcToken instead of opening
	process token.
	(internal_getlogin): Ditto. Set hProcImpToken, too.
	(uinfo_init): Initialize cygheap->user.curr_primary_token.
	* winsup.h (hProcToken): Declare.
	(hProcImpToken): Declare.
2005-04-03 13:06:43 +00:00
Christopher Faylor b1d9a0bd41 * Makefile.in (DLL_OFILES): Add hookapi.o. Eliminate some cruft.
* cygheap.h (cygheap_types): Add new enum: HEAP_1_HOOK.
(hook_chain): New struct.
(init_cygheap::hooks): Define new element.
* cygheap.cc (cygheap_fixup_in_child): Zero hook chain on exec.
* dcrt0.cc (dll_crt0_1): Call ld_preload just before calling main function.
* external.cc (cygwin_internal): Implement CW_HOOK.
* fork.cc (fork_child): Call fixup_hooks_after_fork.
* init.cc (cygwin_hmodule): Reinstate after a long absence.
* include/sys/cygwin.h: Define CW_HOOK.
* hookapi.cc: New file.
* select.cc (start_thread_socket): Add debugging output.
* fhandler_disk_file.cc (fhandler_disk_file::fchmod): gcc 4.x accommodation.
* fhandler_socket.cc (fhandler_socket::connect): Make sure that err is
initialized.
2005-03-22 19:00:31 +00:00
Christopher Faylor 731028b326 copyright 2005-02-20 04:25:33 +00:00
Christopher Faylor 169c465a83 Reorganize header file inclusion throughout so that cygerrno.h comes first.
* fhandler.h (select_record::thread_errno): Save any encountered errno here.
(select_record::set_select_errno): New function.
(select_record::saw_error): New function.
(select_record::select_record): Initialize thread_errno to zero.
* select.cc (set_handle_or_return_if_not_open): Set thread_errno on failure.
(select_stuff::wait): Record errno for later resurrection in calling thread.
(peek_serial): Ditto.
2005-01-12 22:40:46 +00:00
Christopher Faylor 63fcc6d48f * cygheap.cc (cygheap_setup_for_child): Add api_fatal to catch failing
MapViewOfFileEx.
* cygthread.cc (cygthread::stub): Previous change to make diagnostic output
more informative was really a bust.  Try again.  Capture previous name in a new
field in cygthread for diagnostic purposes.
(cygthread::cygthread): Ditto.
(cygthread::release): Add an argument to control whether h should be cleared or
not.
(cygthread::terminate_thread): Use 'inuse' for tests rather than 'h'.
(cygthread): Add some diagnostic fields.
(cygthread::release): Add an argument.
* pinfo.cc (proc_waiter): Accommodate change to cygthread::release.
2004-12-22 18:12:30 +00:00
Christopher Faylor 1a21f33188 * spawn.cc (find_exec): Use has_slash to determine if path has a slash rather
than calculating this twice.
2004-06-02 21:20:54 +00:00
Christopher Faylor 129c8a0e81 * child_info.h (child_info::cygheap_reserve_sz): Rename from cygheap_alloc_sz.
* cygheap.cc: Rename alloc_sz to reserve_sz throughout.
2004-04-04 04:14:11 +00:00
Christopher Faylor 58ea4db2fa * cygheap.cc (cygheap_fixup_in_child): Improve strace output. 2004-03-26 22:48:47 +00:00
Christopher Faylor c7c7492aab * cygheap.cc (init_cheap): Set initial_sz to something or suffer spurious
output.
(cygheap_fixup_in_child): Set alloc_sz to passed in size to ensure that
children will have the right size heap.
(_csbrk): Make output conditional on DEBUGGING.
2004-03-21 22:24:06 +00:00
Christopher Faylor e362f67fef * cygheap.cc (init_cheap): Conditionalize debugging code. 2004-03-21 21:51:26 +00:00
Christopher Faylor c795774c91 * cygheap.cc (init_cheap): Add ability to specify minimal cygwin heap size when
debugging.
(_csbrk): Report error in allocation to stderr.
(ccalloc): Ditto.
* dtable.cc (dtable::find_fifo): Remove use of atoms.
* dtable.h (dtable::find_fifo): Ditto.
* fhandler.h (fhandler_fifo): Ditto.
* fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Ditto.
(fhandler_fifo::set_use): Ditto.
(fhandler_fifo::open_not_mine): Ditto.
(fhandler_fifo::open): Ditto.
* pinfo.cc (_pinfo::commune_recv): Ditto.
(_pinfo::commune_send): Ditto.
2004-03-21 17:41:40 +00:00
Christopher Faylor d8f87fba65 * child_info.h (CURR_CHILD_INFO_MAGIC): Reset to new value.
(child_info::cygheap_alloc_sz): New field.
* cygheap.cc (init_cheap): Reduce size of cygwin stack until minimal hit when
attempting initial allocation.
(cygheap_setup_for_child): Use alloc_sz to create secondary memory mapped
entry.  Store alloc_sz in cygheap_alloc_sz.
(cygheap_fixup_in_child): Use cygheap_alloc_sz to map parent's cygheap.
* cygheap.h (_CYGHEAPSIZE_SLOP): New define.
(CYGHEAPSIZE): Use _CYGHEAPSIZE_SLOP.
2004-03-18 19:30:51 +00:00
Christopher Faylor b4f0009fe3 * cygheap.cc (_csbrk): Report failing condition to stderr rather than strace. 2004-02-16 02:03:54 +00:00
Christopher Faylor cec4879206 * debug.h (console_printf): Define for non-debugging condition.
* cygtls.h (_threadinfo::lock): Remove wait argument.
(_threadinfo::interrupt_setup): Remove retaddr argument.
* exceptions.cc (_threadinfo::interrupt_setup): Ditto.
(_threadinfo::interrupt_now): Accommodate change to interrupt_setup argument.
(setup_handler): Ditto.  Always lock sig stack prior to determining interrupt
method.
* gendef (_sigfe): Correct thinko regarding cmpxchg.
(_sigbe): Ditto.
(_threadinfo::lock): Ditto.
(_threadinfo::pop): Eliminate left-over stack unlock.
* sigproc.cc (proc_subproc): Chnage debugging output to printed warning.
2004-02-09 04:04:24 +00:00
Christopher Faylor f4e815bc30 * cygheap.cc (init_cygheap::close_ctty): Protect YA vforkism.
* fhandler.h (fhandler_base::has_acls): Make pass through for path_conv method.
(fhandler_base::isremote): Ditto.
(fhandler_base::is_fs_special): Ditto.
(fhandler_base::has_attribute): Ditto.  Define new function.
(fhandler_base::fhaccess): Declare new function based on access_worker.
(fhandler_base::set_has_acls): Eliminate obsolete function.
(fhandler_base::set_isremote): Ditto.
* fhandler.cc (fhandler_base::fhaccess): Move from syscalls.cc and into
fhandler_base class.  Use fhandler methods to access data rather than path_conv
stuff.
(fhandler_base::device_access_denied): Use fhaccess method.
* fhandler_disk_file.cc (fhandler_disk_file::opendir): Ditto.
(fhandler_base::open_fs): Remove calls to obsolete functions.
* fhandler_virtual.cc (fhandler_virtual::open): Ditto.
* winsup.h (access_worker): Remove obsolete access_worker declaration.
*syscalls.cc (access_worker): Move function to fhandler.cc.
(access): Use fhaccess method.
* pinfo.cc (_pinfo::set_ctty): Clarify debugging output.
* sigproc.cc (sig_dispatch_pending): Ditto.
* syscalls.cc (setsid): Perform minor rearrangement.
2004-01-24 03:40:33 +00:00
Christopher Faylor f723909038 * configure.in: Remove NEWVFORK default.
* configure: Regenerate.
* dcrt0.cc: Conditionalize vfork stuff throughout.
* dtable.cc: Ditto.
* perthread.h: Ditto.
* pipe.cc (fhandler_pipe::close): Ditto.
* spawn.cc (spawnve): Ditto.
* syscalls.cc (setsid): Ditto.
* exceptions.cc (sigpacket::process): Use macro to refer to vfork pid.
* debug.cc (verify_handle): Define new function.
* debug.h (VerifyHandle): Define new macro.
(verify_handle): Declare new function
* fhandler.cc (fhandler_base::dup): Verify that dup'ed handle is not supposed
to be in use.
(fhandler_base::set_inheritance): Ditto.
(fhandler_base::fork_fixup): Ditto.
* fhandler_socket.cc (fhandler_socket::dup): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::open): Ditto.
* net.cc (set_socket_inheritance): Ditto.
* pinfo.cc (pinfo_fixup_after_exec): Ditto.
* sigproc.cc (proc_subproc): Ditto.
(sig_send): Ditto.
* spawn.cc (spawn_guts): Ditto.
* thread.cc (pthread::init_mainthread): Ditto.
* pipe.cc (fhandler_pipe::close): Close read_state with ForceCloseHandle since
it was protected.
(fhandler_pipe::fixup_after_exec): Protect read_state handle.
(fhandler_pipe::dup): Correctly close open handles on error condition.  Verify
that dup'ed handle is not supposed to be in use.
(fhandler_pipe::create): Protect read_state.
2004-01-23 23:05:33 +00:00
Christopher Faylor 49d0c04260 * cygheap.cc (init_cygheap::close_ctty): Don't NULL ctty if it is still active. 2004-01-16 22:54:14 +00:00
Christopher Faylor 2d1d1eb1e4 * cygtls.h (_threadinfo::call): Remove regparm declaration to work around
compiler bug.
* autoload.cc (TryEnterCriticalSection): Remove.
* dcrt0.cc (dll_crt0_0): Delete inappropriate setting of _my_tls.stackptr to
NULL since it has really bad consequences.  Make 'si' an automatic variable.
* cygtls.cc (_threadinfo::init_thread): Correct thinko which caused thread list
to be allocated every time.
* cygtls.h (CYGTLS_PADSIZE): Define as const int.
* sync.h: Make multiple inclusion safe.
(muto::next): Eliminate.
(muto::exiting_thread): New variable.
(muto::set_exiting_thread): New function.
(new_muto): Change to use different section for mutos since c++ give
inexplicable warning in some cases otherwise.
(new_muto1): Ditto.
* dcrt0.cc (do_exit): Call muto::set_exiting_thread here.
* sync.cc (muto_start): Eliminate.
(muto::acquire): Always give exiting thread a lock.  Never give thread a lock
if exiting.
(muto::release): Ditto for releasing.
* dtable.cc (dtable::init_lock): Unline function and define here.
* dtable.h (lock_cs): Define as a muto since critical sections seem to work
oddly on Windows Me.
(lock): Accommodate switch to muto.
(unlock): Ditto.
* exceptions.cc (setup_handler): Don't worry about acquiring mutos since that
hasn't mattered for a long time.
(signal_exit): Ditto: muto stuff will be handled automatically on exit now.
* Makefile.in (DLL_IMPORTS): Link advapi32 to ensure proper DLL initialization.
* autoload.cc (RegCloseKey): Arbitrarily choose this function as a "seed" to
pull the advapi32 link library in.  So, comment out the autoloading.
* cygtls.cc (_threadinfo::init_thread): Just clear CYGTLS_PADSIZE.
(_threadinfo::remove): Add debugging.
(_threadinfo::find_tls): Ditto.
* cygtls.h (_threadinfo::padding): Make zero length (for now?).
* dcrt0.cc (dll_crt0_0): Move more initialization here from dll_crt0_1.
(dll_crt0_1): See above.
* dtable.h (dtable::lock): Remove commented out critical section locking.
* dtable.h (dtable::init_lock): Remove commented out critical section locking.
* dtable.h (dtable::unlock): Remove commented out critical section locking.
* exceptions.cc (interruptible): bool'ize.
* init.cc (threadfunc_fe): Revert to storing threadfunc at stack bottom.
(munge_threadfunc): Ditto.  Avoid adding overhead to calibration_thread.
(prime_threads): Don't initialize tls stuff.
(dll_entry): Make minor change to initialization order.
* tlsoffsets.h: Regenerate.
* sigproc.cc (wait_sig): Add sanity check for end of process thread exit.
* select.h: Make minor formatting change.
* Makefile.in: Add still more -fomit-frame-pointer functions.
* dtable.h (dtable::lock): New function.
(dtable::unlock): New function.
(dtable::init_lock): New function.
* cygheap.h (HEAP_TLS): Declare new enum value.
(init_cygheap::threadlist): Declare new array.
(init_cygheap::sthreads): Declare new variable.
(cygheap_fdmanip::~cygheap_fdmanip): Use new dtable lock/unlock functions.
(cygheap_fdnew::cygheap_fdnew): Ditto.
(cygheap_fdget::cygheap_fdget): Ditto.
* dtable.cc (dtable_init): Initialize fdtab critical section.
(dtable::fixup_after_fork): Ditto.
(dtable::fixup_after_exec): Ditto.
(dtable::dup2): Use lock/unlock calls to protect access to fdtab.
(dtable::find_fifo): Ditto.
(dtable::fixup_before_fork): Ditto.
(dtable::fixup_before_exec): Ditto.
(dtable::set_file_pointers_for_exec): Ditto.
(dtable::vfork_child_dup): Ditto.
(dtable::vfork_parent_restore): Ditto.
* syscalls.cc (close_all_files): Ditto.
* sync.h (muto::acquired): Declare new function.
(new_muto1): Declare new macro used to specify name of muto storage.
* sync.cc (muto::acquired): Define new function.
* cygthread.cc (cygthread::stub): Remove signal chain removal call since it is
handled during initialization now.
* cygthread.cc (cygthread::simplestub): Remove signal chain removal call since
it is handled during initialization now.
* cygtls.cc (sentry): New class used for locking.  Use throughout.
(_threadinfo::reset_exception): Don't pop stack.
(_threadinfo::find_tls): Move from exceptions.cc.
(_threadinfo::init_thread): Initialize array of threads rather than linked
list.  Take second argument indicating thread function for this thread.
(_threadinfo::remove): Search thread array rather than linked list.  Use sentry
to lock.  Only unlock if we got the lock.
(_threadinfo::find_tls): Ditto for first two.
(handle_threadlist_exception): Handle exceptions when manipulating the thread
list in case of premature thread termination.
(_threadinfo::init_threadlist_exceptions): Ditto.
* cygtls.h (TLS_STACK_SIZE): Decrease size.
(_threadinfo::padding): Add element to avoid overwriting lower part of stack.
(_threadinfo::remove): Add a "wait" argument to control how long we wait for a
lock before removing.
* exceptions.cc (init_exception_handler): Make global.  Take argument to
control exception handler being set.
(ctrl_c_handler): Wait forever when removing self from signal chain.
(_threadinfo::find_tls): Move to cygtls.cc.
(sig_handle): Reorganize detection for thread-specific signals.
* heap.cc (heap_init): Rework slightly.  Make fatal error more verbose.  Remove
malloc initialization since it can't happen during dll attach.
* init.cc (search_for): Move address to search for on stack here.
(threadfunc_ix): Ditto for stack offset.  Make shared so that stack walk
potentially only has to be done once when cygwin processes are running.
(threadfunc_fe): Use standard tls to store thread function (may change back
later).
(calibration_thread): New function.  Potentially called to find threadfunc_ix.
(munge_threadfunc): Search for "search_for" value on stack.  Output warning
when thread func not found on stack.  Use standard tls to store thread
function.
(prime_threads): New function.  Called to prime thread front end.
(dll_entry): Call dll_crt0_0 here when DLL_PROCESS_ATTACH.  Call prime_threads
here.  Try to remove thread from signal list here.
* sigproc.cc (wait_sig): Initialize threadlist exception stuff here.
* thread.cc (pthread::exit): Pass argument to signal list remove function.
* thread.h: Remove obsolete *ResourceLock defines.
* tlsoffsets.h: Regenerate.
* winsup.h (spf): Define temporary debug macro to be deleted later.
* dcrt0.cc (dll_crt0_0): New function, called during DLL initialization.
Mainly consists of code pulled from dll_crt0_1.
(dll_crt0_1): See above.
(_dll_crt0): Wait for initial calibration thread to complete, if appropriate.
Move some stuff to dll_crt0_0.
(initialize_main_tls): Accommodate argument change to
_thread_info::init_thread.
* fork.cc (fork_child): Ditto.
(sync_with_child): Fix debug message.
* external.cc (cygwin_internal): Remove special considerations for
uninitialized dll since initialization happens during dll attach now.
* dlfcn.cc (dlopen): Remove obsolete *ResourceLock calls.
(dlclose): Ditto.
* cygheap.h (init_cygheap::close_ctty): Declare new function.
* cygheap.cc (init_cygheap::close_ctty): Define new function.
* syscalls.cc (close_all_files): Use close_ctty.
(setsid): Ditto.
* cygthread.cc (cygthread::stub): Remove exception initialization.
* cygthread.cc (cygthread::stub): Remove exception initialization.
(cygthread::simplestub): Ditto.
* thread.cc (pthread::thread_init_wrapper): Ditto.
* cygtls.cc (_last_thread): Make static.
(_threadinfo::call2): Initialize exception handler here.
(_threadinfo::find_tls): Move here.
* exceptions.cc (_threadinfo::find_tls): Move.
* dcrt0.cc (__api_fatal): Add prefix info to message here rather than including
it in every call to function.
* winsup.h (api_fatal): Accommodate above change.
* debug.cc (add_handle): Don't do anything if cygheap not around.
(mark_closed): Ditto.
* dll_init.cc (dll_list::detach): Fix debug output.
* fork.cc (sync_with_child): Ditto.
(vfork): Improve debug output.
* heap.cc (heap_init): Ditto.
* exceptions.cc (try_to_debug): Clarify message when debugger attaches.
2004-01-14 15:45:37 +00:00
Christopher Faylor 8ed5c9b629 Move open_fhs from fhandler.h to cygheap.h for easier tracking. Accommodate
this change throughout.
* dtable.cc (dtable::add_archetype): Use correct count when iterating through
*active* archetypes.
* dtable.cc (dtable::fixup_after_exec): Close handle if close_on_exec and
archetype exists since archetype currently does not set windows close-on-exec
flag (FIXME).
* fhandler_tty.cc (fhandler_tty_slave::open): Change debugging output slightly.
(fhandler_tty_slave::close): Ditto.
(fhandler_tty_slave::fixup_after_fork): Just report on inherited use counts
since since archetype currently does not set windows close-on-exec flag
(FIXME).
* pinfo.cc (_pinfo::set_ctty): Change debugging output slightly.
* cygheap.cc (cygheap_init): Remove open_fhs accommodation and use count
reporting.
* perthread.h (vfork_save::fhctty): New element.
* perthread.h (vfork_save::open_fhs): New element.
* fork.cc (vfork): Muck around with ctty and open_fhs stuff, both of which are
now saved in the vfork_save structure.
2003-12-30 01:57:16 +00:00
Christopher Faylor e97377932b * fhandler.h (fhandler_tty_slave::archetype): Make public.
(report_tty_counts): New macro.  Use throughout for reporting tty use counts.
* dtable.cc (dtable::vfork_child_dup): Add debugging output for usecount
increment.  Increment open_fhs if appropriate.
(dtable::vfork_parent_restore): "Close" artificially bumped ctty.
(dtable::vfork_child_fixup): Close ctty since it was bumped prior to vfork.
Save open_fhs around close since the closing of these handles has no effect on
the console.
* fhandler_tty.cc (fhandler_tty_slave::open): Reorganize calls to allow for
easier tracking of usecount modification.
(fhandler_tty_slave::open): Ditto.
2003-12-27 17:41:17 +00:00
Christopher Faylor 1df3fbe2db * fhandler.h (fhandler_tty_master::fixup_after_fork): Remove declaration.
(fhandler_tty_master::fixup_after_exec): Ditto.
* fhandler_tty.cc (fhandler_tty_master::init): Fix so that children do not
inherit master tty handles.
(fhandler_tty_master::fixup_after_fork): Remove, since it was never used.
(fhandler_tty_master::fixup_after_exec): Ditto.
* pinfo.cc (_pinfo::set_ctty): Increment open_fhs when ctty is set.
* cygheap.cc (cygheap_init): Ditto.
* syscalls.cc (setsid): *Always* call close on opened ctty since the archetype
is associated with the ctty and it counts as an opened handle.
* tty.cc (tty::common_init): Don't protect input/output mutex since it confuses
subsequent fork/execs when CYGWIN=tty.
2003-12-27 01:59:29 +00:00