changelog-1999

cygwin, 著名的在win32下模拟unix操作系统的东东

	* tty.cc (tty::master_alive): New method.
	(tty::create_inuse): New method.

Sun Aug  1 16:23:22 1999  Christopher Faylor <[e-mail]>

	* net.cc (get_ifconf): Use alloca for temporary buffer.

Sun Aug  1 01:38:20 1999  Christopher Faylor <[e-mail]>

	Modify de_linearize methods throughout to set unix and msdos path
	names.
	* dcrt0.cc (do_exit): Only remove shared memory when we're done with
	it.
	* exceptions.cc (try_to_debug): Move static variable outside of the
	function so that it can more easily be set with gdb.
	* fhandler_console.cc (fhandler_console::open): Handles are typically
	hexadecimal in debugging output.
	(fhandler_console::open): Do not open inherit console handles by
	default.
	(fhandler_console::dup): Just use open method to "duplicate" a console
	handle.
	(fhandler_console::fixup_after_fork): Do *not* close handles here since
	they have not been inherited.
	(fhandler_console::de_linearize): Ditto.
	* utils/strace.cc (create_child): Correct debugging flags when not
	tracking forked processes.

Sat Jul 31 20:10:58 1999  Christopher Faylor <[e-mail]>

	* dcrt0.cc (do_global_ctors): Ensure that ctors are not called more
	than once per session.
	* fork.cc (fork): Use sig_protect to protect against signals during
	fork.
	* pinfo.cc (lpfu): Show windows pid in debugging message as this is
	generally more useful.
	* pinfo.cc (unlock_pinfo): Issue an error if ReleaseMutex fails.
	(pinfo::record_death): Actually unlock pinfo on exit rather than allow
	ExitProcess to do this since ExitProcess can sometimes take a *long*
	time.
	* spawn.cc (spawn_guts): Ensure that pinfo is always unlocked.

Thu Jul 29 23:43:24 1999  Christopher Faylor <[e-mail]>

	Throughout, consolidate pgid processing for console and tty into
	fhandler_termios and tty_min.
	* debug.h: Make WF?O functions the defaults for dealing with Waits.
	These functions attempt to work around signal interrupt problems.
	* debug.cc: Ditto.
	* exceptions.cc (call_handler): Don't wait a long time for second
	attempt to get signal mutex.
	* fhandler_console.cc (fhandler_console::open): Set the "controlling
	tty".
	* fhandler_termios.cc: Move the ctty and pgid functions here.
	(fhandler_termios::line_edit): Fix debug output.
	* fhandler_tty.cc (fhandler_tty_slave_write): Use sig_protect to
	protect against output_mutex deadlock.
	* fork.cc (get_vfork_val): Conditionalize with NEWVFORK.
	* syscalls.cc (setsid): Add debugging output.
	(setpgid): Reorganize and add debugging output.
	* tty.cc (tty::init): Use a method to clear the sid.

Thu Jul 29 23:42:53 1999  Christopher Faylor <[e-mail]>

	Patch from Egor Duda <[e-mail]>:
	* grp.cc (read_etc_group): Use a default /etc/group entry when one
	doesn't exist.
	(getgrgid): Ditto.
	* passwd.cc (read_etc_passwd): Use a default /etc/passwd entry when one
	doesn't exist.
	(search_for): Ditto.
	* uinfo.cc (read_etc_group): Remove some defines.
	* winsup.h: Move them here.

1999-07-29  Bernd Schmidt  <[e-mail]>

	* Makefile.in (SUBDIRS_AFTER): Build mingw before utils.
	* utils/Makefile.in (MINGW_LDFLAGS): Add "-B../mingw/"


Tue Jul 27 23:31:28 1999  Christopher Faylor <[e-mail]>

	* dcrt0.cc: Add experimental vfork_storage initialization.
	(do_exit): Ditto.
	* exec.cc: Use _spawnve throughout as a common interface for execing a
	program.
	* fork.cc (vfork): Add beginnings of true vfork support.
	* path.cc (sort_by_posix_name): Remove special casing of zero length
	names since they should now be eliminated earlier on.
	(sort_by_native_name): Ditto.
	(mount_info::del_item): Remove hole from mount table specifically, here
	or suffer weird behavior.  Suggested by Andrew Dalgleish
	<[e-mail]>.
	* shared.cc: Make SHAREDVER "unsigned" to avoid a compiler warning.
	* spawn.cc : Accommodate additional argument to _spawnve, throughout.
	(_spawnve): Make this a global function and take an hToken argument so
	that it can be used by sexecve.  Accommodate experimental vfork
	functionality.
	* winsup.h: Add initial support for per-thread vfork stuff.
	* include/cygwin/version.h: Bump shared memory version number.

Mon Jul 26 20:59:58 1999  Christopher Faylor <[e-mail]>

	* path.cc (sort_by_posix_name): Report two zero length strings as being
	equal or suffer an infinite loop.
	(sort_by_native_name): Ditto.
	* shared.cc (shared_info::initialize): Refuse to use a different DLL's
	shared memory.
	* shared.h: Fix mask for child_info sanity test.

Sun Jul 18 16:30:31 1999  Christopher Faylor <[e-mail]>

	* security.cc: Various changes from Corinna.

Sat Jul 17 22:33:45 1999  Christopher Faylor <[e-mail]>

	* fork.cc (fork): Change DuplicateHandle slightly.
	* security.cc (get_nt_attribute): Ignore error return from
	set_process_privileges.
	(set_nt_attribute): Ditto.

Sat Jul 17 00:45:34 1999  Christopher Faylor <[e-mail]>

	* debug.h: Fix ForceCloseHandle1 in non-debug case.

Fri Jul 16 23:47:31 1999  Christopher Faylor <[e-mail]>

	* sigproc.cc (proc_can_be_signalled): Accommodate different flavors of
	myself.
	* include/ddeml.h: Add missing struct.
	* include/wingdi.h: Add missing defines.

Fri Jul 16 23:01:30 1999  Christopher Faylor <[e-mail]>

	* Makefile.in: Attempt to cope when srcdir is a relative pathname.
	* fork.cc (fork): Pass handle to parent process to fixup_after_fork.
	Eliminate excess unlock_pinfos.
	* hinfo.cc (hinfo::fixup_after_fork): Use inherited parent handle
	rather than try to open the parent process explicitly.
	* pinfo.cc (record_death): Cosmetic change.
	* sigproc.cc (wait_sig): Add a debugging statement.
	* winsup.h: Reflect change of argument for fixup_after_fork.

Fri Jul 16 11:07:55 1999  Christopher Faylor <[e-mail]>

	* shared.h: Eliminate record_death_nolock.  Just pass an argument to
	record_death.
	* pinfo.cc (record_death_nolock): Ditto.
	* dcrt0.cc (__api_fatal): Use record_death with FALSE argument rather
	than record_death_nolock.
	* exceptions.cc (really_exit): Ditto.
	* fork.cc (fork): Remove debugging statement.

Wed Jul 14 22:08:52 1999  Christopher Faylor <[e-mail]>

	Throughout, make parent_alive a local variable.  Rename 'alive_parent'
	to 'my_parent_is_alive'.
	* autoload.h: Improve the description of the autoload mechanism.
	* dcrt0.cc: Define parent_alive here.
	(dll_crt0_1): When debugging, rotect handles inherited from fork/exec.
	Force signal thread to finish initializing prior to calling main.
	(dll_crt0): Reorganize child_info stuff to allow common initialization.
	Accept parent_alive handle from invoker and ensure that this is not
	inherited by other processes.
	(do_exit): Ensure that exit_state is not duplicated by a fork.
	(__api_fatal): Call 'try_to_debug' directly.
	* debug.cc: Increase the size of the handle list.
	(threadname): Add an optional argument to control locking.
	* exceptions.cc (error_start_init): Make this a "C" function.
	(try_to_debug): Ditto.  Also, use Sleep rather than pause and loop so
	that gdb can get in to interrupt things.
	(sig_handle):
	* external.cc (fillout_pinfo): Reorganize slightly and plan for the
	future.
	* fhandler.h: Add an argument to show the name of the handle for error
	messages to fork_fixup.
	* fhandler.cc (fhandler_base::fork_fixup): Ditto.
	(set_inheriting): Rename a variable for clarity.
	(fhandler_base::fixup_after_fork): Pass in the name of the handle to
	fork_fixup.
	* fhandler_tty (fhandler_tty_common:fixup_after_fork): Ditto.
	(fhandler_tty_slave:fixup_after_fork): Ditto.
	(fhandler_tty_master:fixup_after_fork): Ditto.
	* fhandler_windows.cc (fhandler_windows::fixup_after_fork): Ditto.
	* fhandler_console.cc (fhandler_console::open): Specifically open
	console with ENABLE_PROCESSED_INPUT.
	* fork.cc (sync_with_child): Call abort when DEBUGGING and there's an
	error.
	(resume_child): Ditto.  Also, allow an ERROR_INVALID_HANDLE error if it
	can't be duplicated as they seem to occur occasionally when the parent
	copies the stack.
	(fork): Use init_child_info to initialize structure passed to child.
	Remove start time setting in favor of common function.  Don't mess with
	parent's parent_alive.
	* heap.cc (sbrk): Simply code slightly.
	* hinfo.cc (hinfo::dup2): Improve error handling.
	* pinfo.cc (set_myself): Set start time here since it is called by
	everything which sets myself.
	(pinfo_init): Remove start_time setting in favor of common function.
	* shared.h (pinfo): Reorganize so that signal stuff falls into section
	of pinfo which is automatically zeroed when a new pid is initialized.
	(PROC_MAGIC): Increment to detect cygwin1.dll's memory passing
	disparities.
	* sigproc.cc (proc_alive): Make this a function.  Wait for target pid
	to initialize.
	(my_parent_is_alive): Rename from alive_parent.
	(proc_can_be_signalled): Renamed from proc_alive macro.
	(proc_exits): Use proc_can_be_signaleed().
	(proc_subproc): Don't put parent_alive in child.
	(proc_terminate): Close hwait_subproc in a race-safe way.  Ditto
	sync_proc_subproc.
	(sigproc_terminate): Always terminate proc_subproc thread first or it
	may try to use signal thread as it is going away.  Wait for signal
	thread to exit.
	(sig_send): Use proc_can_be_signalled().
	(init_child_info): New function.  Initializes memory block passed by
	spawn/fork.
	(mutex_stack): Add thread name field.
	(sig_wait): Set active state after all handles have been set up and
	before protecting the handles.  Use ForceCloseHandle to close
	subproc_ready as it is now protected.  Close signal_mutex here.
	* sigproc.h: Accommodate alive_parent rename.
	* spawn.cc Use init_child_info to initilize memory block passed to
	subprocess.
	* strace.cc (__system_printf): Write to screen before writing to strace
	log.  Only write to strace log if we're actually stracing.
	* winsup.h: Declare the 'action on error' functions.
	* utils/Makefile.in: (Patch from Egor Duda <[e-mail]>) Compile
	strace using -mno-cygwin.
	* utils/strace.cc: Allow ingw concession from Egor Duda.  Attempt to
	allow CTRL-C when stracing.

Thu Jul 14 0:39:00  Corinna Vinschen  <[e-mail]>

	* security.cc (alloc_sd): Delete special handling of uid/gid 513.

Thu Jul 13 15:01:00  Corinna Vinschen  <[e-mail]>

	* fhandler.cc (get_file_owner): Fix typo.
	* path.cc (path_conv::path_conv) : Change `return' to `goto end' in
	case of SYMLINK_IGNORE is set.

Mon Jul 5 21:33:00  Corinna Vinschen  <[e-mail]>

	* security.cc (WriteSD): Doesn't set errno if BackupWrite()
	returns ERROR_INVALID_SECURITY_DESCR (which happens on FAT).

Sat Jul 10 13:17:20 1999  Christopher Faylor <[e-mail]>

	* utils/strace.cc (error): Actually output error message.
	(add_child): Duplicate inherited child process handle with all of the
	privileges that we need.

Fri Jul  9 01:37:23 1999  Geoffrey Noer  <[e-mail]>

	* include/cygwin/version.h: Bump CYGWIN_VERSION_API_MINOR to 14
	in honor of snprintf and vnsprintf additions.

Fri Jul  9 00:04:03 1999  Christopher Faylor <[e-mail]>

	* path.cc (path_conv::path_conv): Correct buffer overflow condition.
	* fhandler_console.cc (fhandler_console::open): *Need* to enable
	processed input or CTRL-C won't stop anything unless it's at a prompt.
	(fhandler_console::input_tcsetattr): Ditto.

Thu Jul  8 18:27:49 1999  Christopher Faylor <[e-mail]>

	* Makefile.in: Add malloc debugging options.
	* dcrt0.cc (api_fatal): Call abort when debugging so that the debugger
	will pop up.
	* debug.cc (close_handle): Unlock in pathological case.
	* fhandler_console.cc (fhandler_console::read): Always respond to
	windows size changes.
	(fhandler_console::open): Always set things to ~ENABLE_PROCESSED_INPUT
	so that we can control INTR character.  Don't set pgid here.
	(fhandler_console::input_tcsetattr): Turn on windows event so that we
	can see screen resizes.
	(fhandler_console::init): Don't set pgid here.
	* fhandler_termios (fhandler_termios::tcinit): Set pgid here.
	* fhandler.h: Fix set_has_acls method return.
	* utils/strace.h: Pass CTRL-Cs to child process.

Wed Jul  7 23:59:50 1999  Christopher Faylor <[e-mail]>

	* Makefile.in: Improve dependencies.
	* autoload.h: Work around "function unused" messages for autoload init
	functions.
	* configure.in: Use CHECK_TOOL to find CC so that it will get the
	proper host alias.
	* configure: Regenerate.
	* dcrt0.cc (do_exit): Minor reorganization of termination function
	calls.
	* debug.cc (close_handle): Issue an error when an attempt is makde to
	close a handle with a name different from the one used to record it
	previously.
	* debug.h: Implement new macros for storing arbitrary handle names.
	* exceptions.cc (handle_signal): Terminate the main thread when exiting
	due to signal in signal thread.
	* fhandler.h: Add an extra 'fd' argument to all ready_for_read methods.
	* select.cc: Ditto, throughout.
	* fhandler_console (get_tty_stuff): Protect the tty_stuff handle here.
	* fhandler_termios.cc (fhandler_termios::line_edit): Accommodate fd
	argument to ready_for_read.
	* fhandler_tty.cc (fhandler_tty_master::init): Close an unneeded thread
	handle.
	* fork.cc (fork): Use standard name when protecting process handle.
	* spawn.cc (spawn_guts): Ditto.
	* shared.cc (open_shared_file_map): Protect cygwin_shared handle here.
	* sigproc.cc: Throughout, close child process handle using standard
	name.
	* syscalls.cc (read_handler): Check that fd is still open prior to
	performing an operation.  Supply fd argument for ready_for_read.
	* (_read): Supply fd argument for read_for_read.
	* tty.cc (tty_list::terminate): Close unneeded handles as tty is
	closing down.
	(tty_list::allocate): Protect against signals.

Mon Jul  5 14:52:40 1999  Christopher Faylor <[e-mail]>

	* cygwin.din: Export new snprintf and vnsprintf functions courtesy of
	Egor Duda <[e-mail]>.

Sun Jul  4 23:54:43 1999  Christopher Faylor <[e-mail]>

	* exceptions.cc (sigbegin): New function.  Called prior to dispatching
	to signal handler.
	(sigreturn): New function.  Called after signal handler ret