changelog-1997

cygwin, 著名的在win32下模拟unix操作系统的东东

	* exec.cc (_execve): add missing const to args to match def
	of execve in newlib which this calls.
	(sexecve): add missing const to def
	(sexeclpe): don't need to cast argv in sexecvpe call
	(sexecvpe): add missing const to def
	* winsup.h: correct _execve proto, add protos for login/logout
	* syscalls.h: correct sexecve, sexecvpe protos
	* include/Windows32/Base.h: NULL should be defined differently
	for C++
	* init.cc: respacing

Tue Sep 23 17:05:50 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Sergey Okhapkin):
	* dcrt0.cc (dll_crt0_1): don't use alloca for allocating storage
	for environment blocks because setenv() uses realloc!

Tue Sep 23 17:05:50 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Chris Faylor):
	* Makefile.in (LD_STUFF): Add datestamp.o after DLL_OFILES.
        (datestamp.o): New target.  datestamp.c is generated whenever .o
        files change.  It creates a file containing a "date stamp"
        which is used by the function "cygname" to create named
	shared memory, events, mutexes, and semaphores used by
	cygwin.dll.  The unique datestamp allows multiple loading of
	different cygwin.dll's even when they have incompatible use
	of shared memory areas.
	* init.cc (dll_entry): Create the name string used by cygname
        from the name of the invoking .dll + the datestamp of the
        .dll from the auto-generated datestamp.c
        * misc.cc (cygname): New function.  Creates a standard Cygnus
        shared resource name given a prefix, a name (e.g., pinfo_mutex),
        and a numeric suffix (e.g., a pid).  Replaces custom code in
        several files.  Uses cygwin_dlldate from datestamp.c to construct
        names that are unique for a given cygwin load.
        * shared.cc (open_shared_file_map): Use standard cygname function
        to create names for sharable objects.  Use static handle 'h'
        so that it can be closed later by shared_terminate.
        (shared_terminate): Guard against calling CloseHandle with a
        NULL handle.
        (create_shared_fd_mapping_name): Use cygname function to generate
        the name for the "fd_map".

Tue Sep 16 23:34:36 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Sergey Okhapkin):
	* fcntl.cc (_fcntl): correct errno value (EBADF instead of
	EBADFD).

Tue Sep 16 17:22:28 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Sergey Okhapkin):
	* include/Windows32/Defines.h: add missing defines needed
	for NTEA usage.
	* ntea.cc: remove them from here
	* syscalls.cc (_link): call CreateFile with FILE_WRITE_ATTRIBUTES
	flag instead of GENERIC_WRITE

Tue Sep 16 17:22:28 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Chris Faylor):
	* pinfo.cc (pinfo_init): Fix a NULL pointer dereference when PID
	environment variable contains garbage.

Thu Sep 11 16:51:40 1997  Geoffrey Noer  <[e-mail]>

	* syscalls.cc (ftruncate): read file pointer location at
	beginning of function and restore it at the end

Thu Sep 11 15:35:10 1997  Ian Lance Taylor  <[e-mail]>

        * path.cc (backslashify): Don't turn a single trailing slash into
        a double trailing slash.

Wed Sep 10 11:40:55 1997  Ian Lance Taylor  <[e-mail]>

        * include/Windows32/Structures.h: Add PACKED to PRINTDLG.
        * include/Windows32/Functions.h: Add STDCALL to a few function
        declarations.

Tue Sep  9 02:12:18 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Sergey Okhapkin):
	* syscalls.cc (_link): Implement hard links under NT with NTFS
	using the backup API.  Default to copying the file (what we did
	before).

Mon Sep  8 20:19:09 1997  Geoffrey Noer  <[e-mail]>

	Merge in the following changes:

        Thu Aug 21 13:30:12 1997  Ian Lance Taylor  <[e-mail]>
        * assert.cc: New file.
        * Makefile.in (DLL_OFILES): Add assert.o.
        (assert.o): New target.
        * pinfo.cc (cygwin32_winpid_to_pid): New C function.
        * cygwin.din: Add cygwin32_winpid_to_pid.
        * include/sys/cygwin.h: Include <sys/types.h>.
        (cygwin32_winpid_to_pid): Declare.
        * pinfo.cc (pinfo_init): Add debug_printf showing pid and pgid.

        Wed Aug 20 13:24:30 1997  Ian Lance Taylor  <[e-mail]>
        * spawn.cc (env_sort): New static function.
        (spawn_guts): Sort the environment before passing it to
	CreateProcess.
        * exceptions.cc (exit_already): New file static variable.
        (__cygwin_exception_handler): If exit_already is set, just
        return.  If we get an exception we don't recognize, let the next
        exception handler handle it.  Just ignore the INVALID_HANDLE
        exception.
        (really_exit): Remove file static exit_already variable; use the
        global one.
        (events_terminate): Set exit_already.
        * include/Windows32/Defines.h (EXCEPTION_INVALID_HANDLE): Define.
        (STATUS_INVALID_HANDLE): Define.
        * include/Windows32/Functions.h: Declare some shell functions.

Mon Sep  8 17:40:46 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Sergey Okhapkin):	
	* dcrt0.cc (_exit): Kill the foreground process group on session
	leader exit only if job control is in progress.
	* exceptions.cc (ctrl_c_handler): protect the code with critical
	section.  This helps stability under Win 95.
	* include/sys/strace.h: add new wm_printf macro
	* signal.cc (kill_worker): window message number changed (window
	messages WM_USER-WM_USER+0x100 reserved for common controls on
	windows95).  Debug print added.
	* spawn.cc (spawn_guts): removed unneeded flag DETACHED_PROCESS.
	* strace.cc: defines for SIGNAL and ASYNCIO messages added.
	* tty.cc (create_tty_master): initialize speed fields of termios
	structure.
	(fhandler_pty_master::open): likewise.
	* window.cc (WndProc): debug print added, window message number
	changed.
	* winsup.h: WM_ASYNCIO number changed.

Mon Sep  8 16:40:46 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Chris Faylor):
	* fhandler.h: set_w_binary/set_r_binary now defined to
	return void
	* grp.cc (getgroups): always return an array of length 1 where
	the element is the user's gid.
	* pinfo.cc (pinfo_init): verify that we haven't exceeded the
	maximum number of processes
	(pinfo_list::allocate_pid): ditto
	* include/Windows32/Functions.h: add noreturn attrib to ExitProcess
	* include/sys/strace.h: change strace defs so strace-related
	printfs will automatically add __FUNCTION__: to the beginning,
	rename __sys_printf to strace_printf.
	* *.cc: remove function names from debug printfs in favor of the
	new scheme where they are automatically added, change __sys_printf
	references (now strace_printf).
	* smallprint.c (__small_vsprintf): new function displayer code
	to support the above changes

Wed Sep  3 12:44:45 1997  Geoffrey Noer  <[e-mail]>

	* Makefile.in: split subdir_do into subdir_dobefore and
	subdir_doafter to reflect whether the subdir in question
	should be built before or after the top level is built
	(e.g. glob needs to be built before libcygwin.a but libcygwin.a
	needs to be built before utils).

Thu Aug 28 12:09:39 1997  Geoffrey Noer  <[e-mail]>

	* configure.in: when setting up EXE_LDFLAGS, correct the
	location of crt0.o to ../../newlib since EXE_LDFLAGS is used
	by Cygwin32 subdirectories where newlib is two directories up
	instead of one.
	* configure: regenerate with autoconf

Thu Aug 28 00:13:11 1997  Geoffrey Noer  <[e-mail]>

	Replace all licensing-related headers in all Cygnus-owned
	files.  Instead of listing terms at the top of each file, now
	we simply refer to:
	* CYGWIN32_LICENSE: new file listing Cygwin32 licensing terms

Wed Aug 27 17:40:16 1997  Geoffrey Noer  <[e-mail]>

	* cygwin.din: export random, srandom

Wed Aug 20 16:56:39 1997  Geoffrey Noer  <[e-mail]>

	* Makefile.in: remove unused winsock-related build rules
	that were commented out, minor comment changes, remove
	test.exe build rule.

Wed Aug 20 14:45:17 1997  Geoffrey Noer  <[e-mail]>

	* Makefile.in: link cygwin.dll with -lm -lgcc -lc -lgcc instead
	of -lc -lm -lm -lgcc so lgcc finds abort().  Add definitions that
	will eventually be used to build a cygwindebug.dll used by gdb
	so gdb can debug a buggy cygwin.dll.  Change some variable names
	to have underscores in them (DLL_NAME, LIB_NAME, DEF_FILE, etc.).
	Comment out text.exe build rule. 

Tue Aug 19 20:41:51 1997  Geoffrey Noer  <[e-mail]>

	* dcrt0.cc: respace, modify some comments slightly

Tue Aug 19 16:17:57 1997  Geoffrey Noer  <[e-mail]>

	* Makefile.in: include ../libiberty/random.o, stop including
	librx since it is LGPL'd code.
	* stubs.cc: add stubs for regcomp, regexec, regerror, regfree
	* dcrt0.cc (dll_crt0_1): default to not support tty/pty devs,
	default to not displaying the running process in the title bar.

Fri Aug 15 18:23:43 1997  Rob Savoye  <[e-mail]>

	Add mingw directory for the minimalist cygwin environment.
	See mingw/ChangeLog for changes specific to that directory

	* configure.in: Add mingw to AC_CONFIG_SUBDIR.
	* configure: Regenerated from autoconf 2.12 with Cygnus	patches.
	* Makefile.in: Use subdir_do which uses the value of $SUBDIRS
	rather than having seperate target for each directory.
	* glob/Makefile.in: Add a phony target for install.
	* configure.in: Add mingw to AC_CONFIG_SUBDIR.

Fri Aug 15 01:12:19 1997  Geoffrey Noer  <[e-mail]>

	* times.cc: add missing extern "C"s around exported functions

Thu Aug 14 17:00:32 1997  Geoffrey Noer  <[e-mail]>

	patch from [e-mail] (Sergey Okhapkin):
	* console.cc (fhandler_console::input_tcsetattr): clear iflag_ and
	lflag_ when tty support enabled.
	(FakeReadFile): do not interrupt read when tty support enabled.
	Do not reset signal_arrived event.
	* cygwin.din: add exports - cf(g)set(i)ospeed, login, logout, ttyslot
	* dcrt0.cc (_exit): kill orphaned childs with SIGHUP and SIGCONT
	on group leader exit, kill foreground process group on session
	leader exit.
	* dirsearch.cc (closedir): check for FindFirst() was called
	* exceptions.cc: include mywinsock.h.
	(call_handler): call WSACancelBlockingCall to try to interrupt
	blocking winsock call, do PulseEvent() instead of SetEvent().
	(ctrl_c_handler): clear pending SIGCONT on stop signals, clear all
	pending stop signals on SIGCONT, suspend the thread before resuming
	to avoid W95 bug, process pending signals on SIGCONT, add signals to
	pending if the process is stopped.
	* fcntl.cc (fcntl): some code rearrangement to always do debug printfs
	on call exit.
	* hinfo.cc: include stdio.h
	(hinfo_vec::build_fhandler): always add ttynum to tty's filename
	(hinfo_vec::dup2): fix return value initialization and errno setting.
	* include/netdb.h: typedef for sig_t removed
	* include/sys/termios.h: octal constants changed to hexadecimals
	to simplify debugging.
	* misc.cc: include unistd.h and utmp.h
	(login): new
	(logout): new
	* pinfo.cc (lock_pinfo_for_update): debug printf added
	(pinfo::record_death): mark processes as orphaned on group leader
	exit.
	* select.cc (cygwin32_select): ResetEvent() removed
	* signal.cc: unneeded ResetEvents removed
	(_kill): ignore stop signals from a member of orphaned process group,
	kill self process the last on group kill.
	(sigaction): reset pending SIGCHLD when the disposition is set to
	default.
	* spawn.cc (spawn_guts): ResetEvent removed
	(cwait): do not interrupt the call
	* strerror.cc: include stdio.h, reenable disabled cases, remove
	duplicated cases, return decimal error value in the default case.
	* syscalls.cc (setsid): set process group id to process id when setsid
	called.
	(setpgid): check for negative pgid
	* syslog.cc (syslog): %m macro support added
	* termios.cc (cfg(s)eti(o)speed): new fuctions needed to support
	NIST PCTS requirements.
	* tty.cc: include utmp.h.
	(ttyslot): new
	(tty_list::terminate): fill in utmp on tty master exit
	(tty_list::allocate_tty): check for tty master pocess alive
	(create_tty_master): fill in utmp
	(do_input): restart tty output on interrupt
	(fhandler_tty_slave::fhndler_tty_slave): ttynum logic moved to
	build_fhandler.
	(fhandler_tty_slave::open): set tty's session id to sid of the calling
	process.
	(fhandler_tty_slave::write): check for TOSTOP bit
	(fhandler_tty_slave::fstat): allow access to tty to everyone
	(fhandler_tty_slave::ioctl): check for TOSTOP bit
	* tty.h: ttyslot prototype added
	* wait.cc (wait4): check for valid value of option argument added
	* winsup.h: define PID_ORPHANED, move tty_l