changelog-1998

cygwin, 著名的在win32下模拟unix操作系统的东东

	stuff.
	* mkvers.sh: New file.  Creates version.cc.
	* cygwin.din: Export setdtablesize.
	* dcrt0.cc: Remove obsolete version variables.
	(build_argv): Use issep() macro rather than isspace since
	isspace includes whitespace that the shell does not consider
	a command separator.
	(check_sanity_and_sync): Use new cygwin version defines and
	structures for compatibility checking.
	(dll_crt0_1): Ditto.
	(__api_fatal): Renamed from api_fatal.  Now always called from
	macro which tacks program name to beginning of fmt.  Increase
	size of buffer.
	* environ.cc (regopt): Use new reg_key class constructor
	functionality.
	* net.cc (getdomainname): Ditto.
	* path.cc (read_mounts): Ditto.
	(mount_info::from_registry): Ditto.
	(mount_info::to_registry): Ditto.
	(hash_path_name): No need for this to be a "C" function.
	* external.cc (cygwin32_internal): Export version info strings.
	* external.h: Add CW_GETVERSIONINFO.
	* fhandler.cc (fhandler_base::write): Eliminate use of MIN macro.
	* init.cc (set_dllname): Obsolete function.  Handled in version.cc.
	(dll_entry): Remove reference to set_dllname.
	* libccrt0.cc (this_proc): Renamed from cygwin_statu.
	(cygwin_crt0_common): Record api version in this_proc.
	* mmap.cc (recreate_mmaps_after_fork): No need for this to be
	a "C" function.
	* syscalls.cc (close_all_files): Ditto.
	* pinfo.cc (lock_pinfo_for_update): Eliminate a compiler warning.
	* registry.cc: Eliminate reg_session class. Augment reg_key to handle
	functionality of reg_session.
	* registry.h: Ditto.
	* shared.cc (shared_name): No need for this to be a "C" function.
	Use new cygwin version structure.
	(shared_info::initialize): Use new reg_key class constructor
	functionality.
	* smallprint.c (__small_vsprintf): Accept %P as a format specifier.
	Signifies the program name.
	* spawn.cc (spawn_guts): Quote *all* of the stuff the dcrt0.c considers
	special.
	* tty.cc (tty::inuse_event_exists): Remove debugging printf.  It results
	in too much output to strace log.
	* uinfo.cc: Add a needed include.
	* uname.cc (uname): Use new cygwin version structure to fill in utsname
	fields.
	* winsup.h: Regroup into sections.  Add new version structure.
	* include/utmp.h: Move login/logout function declarations here.
	* include/cygwin32/version.h: Define new CYGWIN version/info
	stuff here.

Fri Oct 16 00:13:35 1998  Geoffrey Noer <[e-mail]>

	* Makefile.in: enable building mingw subdir by default

Thu Oct 15 12:01:08 1998  Christopher Faylor <[e-mail]>

	* spawn.cc (spawn_guts): Set all security attributes
	for CreateProcess so that sexec will work properly.

Thu Oct 15 08:49:12 1998  Christopher Faylor <[e-mail]>

	* hinfo.cc (hinfo::dup2): Avoid a null pointer dereference
	in a debugging printf.

Wed Oct 14 18:06:51 1998  Geoffrey Noer <[e-mail]>

	patch from Corinna Vinschen <[e-mail]>:
	* fhandler_console.cc (fhandler_console::dup): reset
	default_color since the console fhandler forgets its default
	colorizing when it's `dup'ed.
	(fhandler_console::fhandler_console): remove unnecessary
	erasing in constructor of fhandler_console.

Mon Oct 12 22:20:59 1998  Christopher Faylor <[e-mail]>

	* fcntl.cc (fcntl): According to the "Single UNIX Specification",
	F_DUPFD should *not* close its argument.  Revert to previous
	behavior.
	* hinfo.cc (dup2): Guard against closing target fd too early.
	* pinfo.cc: Always initialize myself to a dummy value so that
	myself != NULL checks are avoided.
	* include/sys/strace.h (strace): Remove NULL check for myself.
	* dcrt0.cc (api_fatal): Ditto.
	* exceptions.cc (handle_exceptions): Ditto.
	* signal.cc (sigprocmask): Ditto.
	(_raise): Ditto.
	* strace.cc (get_strace_mutex): Ditto.

Mon Oct 12 15:19:47 1998  DJ Delorie  <[e-mail]>

	* utils/ps.cc (main): use const char *pname

Fri Oct  9 12:32:23 1998  Christopher Faylor <[e-mail]>

	* syscalls.cc (getw): Simplify.

Thu Oct  8 23:09:34 1998  Geoffrey Noer <[e-mail]>

	* times.cc: add missing syscall_printfs to time functions,
	slight reformatting.

Thu Oct  8 21:56:37 1998 DJ Delorie <[e-mail]>

	* hinfo.cc (cygwin32_attach_handle_to_fd): allow to pass -1
	for dup() simulation; return allocated fd.
	* pinfo.cc (lock_pinfo_for_update): if the mutex is broken,
	fail instead of looping.  If you do loop, don't use 100% CPU.

Thu Oct  8 18:33:02 1998  Christopher Faylor <[e-mail]>

	* dcrt0.cc: Add another per-thread object for strace.
	(quoted): Fix misconception of method used to quote
	quotes.
	(globify): Optionally output arguments.
	(build_argv): Ditto.
	(dll_crt0_1): Fix typo in line reassignment.
	* debug.cc (class locker): Avoid calling lock multiple times.
	* exceptions.cc (call_handler): Set strace recursion flag
	to zero when invoking a signal handler.
	* fcntl.cc (_fcntl): F_DUPFD should close its argument.
	* fork.cc (fork): Move determination of parent process to
	a safer place.
	* sigproc.cc (get_sig_dispatch_mutex):  Rename.  Use macro
	interface to provide the name of the caller for strace output.
	(release_sig_dispatch_mutex): Ditto.
	* sigproc.h: Define *_dispatch_mutex wrappers.
	* strace.cc (strace_printf): Use new per-thread object to
	guard against recursion.
	* winsup.h: Define per_thread_strace_protect.  Redo per_thread
	base class for a little more clarity.

Wed Oct  7 22:30:43 1998  Geoffrey Noer <[e-mail]>

	* fhandler_tty.h: up NTTYs from 16 to 128

Wed Oct  7 09:15:55 1998  Christopher Faylor <[e-mail]>

	* fhandler_console.cc (console_read): Distinguish between
	0 byte return from CTRL-C and EOF condition.

Tue Oct  6 22:31:44 1998  Christopher Faylor <[e-mail]>

	* dcrt0.cc (build_argv): Rewrite. Now: 1) allocates argv on
	the fly, 2) inserts '@' files as they are found, 3) uses
	sh-style quoting using either " or ' which may be embedded
	in an argument.
	(insert_file): Don't scan command line.  Accept already
	parsed arguments from build_argv.
	(quoted): New function for parsing quoted strings.
	(globify): Don't scan argv list.  Accept element from
	build_argv which will be tacked to end of argv as it
	is being built.  Extend quoting options to allow
	tilde, braces, and quotes.
	(dcrt0_dll_1): Simplify argv processing.  Just call
	build_argv, which handles everything.

Tue Oct  6 11:04:43 1998  Christopher Faylor <[e-mail]>

	Change Create[A-Z]* calls throughout to use sec_none_nih
	to avoid subprocesses accidentally inheriting handles.
	* grp.cc: Hold group structures in group_buf rather than
	an image of the /etc/group file.
	(parse_grp): New function to parse a group line into a
	struct group.
	(add_grp_line): Use parse_grp to add line from /etc/group
	into internal cache.
	(read_etc_group): Avoid redundant feof call.  Set up
	default group.
	(getgrgid): Just return appropriate entry from group_buf
	rather than reparsing internal representation.
	(getgrnam): Ditto.
	(getgrent): Ditto.
	* hinfo.cc (hinfo::select_*): Set errno value when attempt
	is made to use an unopened fd.
	* passwd.cc: Hold passwd structures in passwd_buf rather than
	an image of the /etc/passwd file.
	(parse_pw): New function to parse a passwd line into a
	struct passwd.
	(add_pw_line): Use parse_pw to add line from /etc/passwd
	into internal cache.
	(read_etc_passwd): Avoid redundant feof call.
	(search_for): Just scan passwd_buf for matching entries.
	(getpwent): Just return appropriate entry from passwd_buf
	rather than reparsing internal representation.

Mon Oct  5 18:06:31 1998  Geoffrey Noer  <[e-mail]>

	patch from Corinna Vinschen <[e-mail]>:
	* sysdef/kernel32.def: add missing GetDiskFreeSpaceEx lines

Sat Oct  3 23:52:23 1998  Christopher Faylor <[e-mail]>

	* dcrt0.cc (si): Initialize so that NO_COPY will work.
	* debug.cc (class locker): Fix previous change.  Critical
	sections are still required, so protect them if operating
	in main thread to avoid signal problems.
	Make any previously static use of locker global since that
	appears to be the only foolproof way of marking the variable
	NO_COPY.  Rename these variables to something that is not
	likely to be collided with.
	* exceptions.cc (call_handler): Signal arrival of a dispatched
	signal here and wait a long time for the mutex before giving
	up.  Should increase performance slightly.
	* sigproc.cc (maintid): New external symbol.
	* sigproc.cc (maintid): Make this global since it is used
	in other places now.
	(sig_dispatch_pending): Don't wait for wait_sig to complete
	if there are no pending signals.  Avoids a race and should
	be faster.
	(wait_sig): Don't set signal_arrived event here.  Do it in
	call_handler.
	* strace.cc (strace_printf): Remove previous recursion check
	since it is not signal safe.
	* syscalls.cc (_read): Remove duplicate CreateEvent typo.

Fri Oct  2 09:54:42 1998  DJ Delorie  <[e-mail]>

	* strace.cc (strace_printf): protect against recursion

Thu Oct  1 17:08:47 1998  Geoffrey Noer  <[e-mail]>

	* utils/ps.cc (main): add more detailed usage printfs

Thu Oct  1 11:05:16 1998  Christopher Faylor <[e-mail]>

	* Makefile.in: Fix typo in debug.o dependency.
	* debug.cc (class locker): Give up on using critical sections
	since they are not safe to use in the main thread due to signals.

Wed Sep 30 22:34:42 1998  Christopher Faylor <[e-mail]>

	* fork.cc (fork): Close parent's parent_alive handle
	if there is one or suffer a handle leak.
	* syscalls.cc (_read): Make all events no access and
	non-inheritable or suffer potential handle leak.
	* windows.cc (gethwnd): Ditto.

Wed Sep 30 17:22:29 1998  Geoffrey Noer  <[e-mail]>

	* include/io.h: add missing setmode proto

Tue Sep 29 23:33:11 1998  Christopher Faylor <[e-mail]>

	* fhandler_tty.cc (fhandler_pty_master::close): Make sure
	both sides of both pipes associated with a tty master are
	closed or suffer handle leaks.

Tue Sep 29 16:55:00 1998  Geoffrey Noer  <[e-mail]>

	* path.cc (mount_info::init): remove default mounts for
	raw devices.
	* utils/mount.cc (reset_mounts): ditto
	(main, usage): new -f flag disables warning messages about
	missing mount point directories.  Two new flags, disabled for
	now: -c will create missing mount point directory, -g will
	select adding the mount point to the global registry location.
	* include/sys/mount.h: add MOUNT_GLOBAL define, for future use.

Tue Sep 29 14:20:30 1998  Christopher Faylor <[e-mail]>

	* exceptions.cc (exception): Use %p to denote some hex
	values.
	* winsup.h (read_info): Add jmp_buf to structure.  Required
	for syscalls.cc change below.

Mon Sep 28 19:36:41 1998  Syd Polk  <[e-mail]>

	* include/{tchar.h, direct.h}: Added so that
	tcl8.1a2 can be compiled with cygwin.

Mon Sep 28 19:36:41 1998  Christopher Faylor <[e-mail]>

	* syscalls.cc (thread_reset): Yet another method for
	handling interruptible reads.
	(_read): Use thread_reset to reset reads after a signal.

Sun Sep 27 21:11:46 1998  Christopher Faylor <[e-mail]>

	* cygwin.din: New alias for __cygwin32_stack_trace.
	* debug.cc (find_handle): Avoid leaving function without
	unlocking.
	(newh): Ditto.
	* exceptions.cc (__cygwin32_stack_trace): Rename to just
	`stack'.  Shortens stack trace output.
	(exception): Use %p to distinguish register values.
	* fhandler_console.cc (fhandler_console::init): Remove
	debugging sig_protect.
	* init.cc (dll_entry): Move definition to avoid a
	compiler warning.
	* path.cc (mount_info::conv_to_win32_path): Detect
	case of root directory when setting win32 relative
	path.
	(mount): Remove obsolete label.
	* syscalls.cc (thread_sync): New function for exiting
	the read helper thread.
	(_read): Use new method for exiting the read helper
	thread.

Sun Sep 27 11:25:06 1998  Christopher Faylor <[e-mail]>

	patch from [e-mail] (Sergey Okhapkin):
	* delqueue.cc (delqueue_list::process_queue): Clear queue
	entry if file cannot be deleted for a reason other than
	sharing violation.

Fri Sep 25 08:52:50 1998  Christopher Faylor <[e-mail]>

	* debug.cc: locker variables should all be static.
	* syscalls.cc (_read): Call ForceCloseHandle on
	thread handle since it is protected.

Thu Sep 24 18:59:25 1998  Geoffrey Noer  <[e-mail]>

	* path.cc (mount): don't verify that path is an existing
	directory.  Instead
	* utils/mount.cc: verify that path is an existing directory
	and print warning if it's not.  Still do the mount.

Thu Sep 24 11:45:04 1998  Christopher Faylor <[e-mail]>

	* debug.cc: locker class variables must be NO_COPY since
	they contain data that should not be precisely duplicated
	after a fork.  This hopefully fixes a "SIGSEGV" problem.
	* select.cc (peek_pipe): Pipes apparently should set both
	"read" and "exception" flags on EOF.

Wed Sep 23 18:26:31 1998  DJ Delorie  <[e-mail]>

	* doc/doctool.c (main): typo checking for --help

Wed Sep 23 17:46:06 1998  Christopher Faylor <[e-mail]>

	* path.cc (symlink_check_one):  Try much harder to ensure that
	CloseHandle is called on the file which was opened to check
	for a symlink.  Avoid obsolete check for NULL buf.

Wed Sep 23 17:11:50 1998  Christopher Faylor <[e-mail]>

	* syscalls.cc (_read): Close thread handle or suffer a leak.
	* dir.cc (opendir): Simplify logic.
	(readdir): Ditto.  Clos