execed process to avoid a race.
* sigproc.cc (wait_subproc): Print more info when a WFSO error occurs.
* automode.c: New file.
* syscalls.cc (close_all_files): Streamline slightly.
* cygheap.cc (ccalloc): Clear *entire* allocated array.
(EnumProcesses9x): Rename from EnumProcessesW95. Change arguments to be more
useful for cygwin.
(winpids::init): Accomodate argument changes.
(enum_init): Ditto.
* pinfo.h (winpids): Make pidlist dynamically extendable by storing it as a
pointer and remembering the size.
* ntdll.h: Add extra definitions needed for EnumProcessesNT. Reformat via
'indent'.
(sigreturn): Construct pseudo-frame-pointer so that signal handler can figure
out where to put return address when signals are coming in quickly.
* path.cc (cwdstuff::get): Allow length 0 buffer length when buffer when NULL.
`fixup_after_fork'.
* fhandler_raw.cc (fhandler_dev_raw::fhandler_dev_raw): Add
`set_need_fixup_after_fork' call.
(fhandler_dev_raw::~fhandler_dev_raw): Revert to user space
allocation.
(fhandler_dev_raw::open): Ditto.
(fhandler_dev_raw::dup): Ditto. Reset buffer pointer.
(fhandler_dev_raw::fixup_after_fork): New function.
* fhandler_tape.cc (fhandler_dev_tape::open): Revert to user space
memory allocation.
(fhandler_dev_tape::ioctl): Ditto. Change behaviour on MTSETBLK when
new size is 1.
cnt_need_fixup_before accordingly.
(dtable::dup2): Ditto.
(dtable::fixup_before_fork): New method.
(dtable::fixup_before_exec): Ditto.
* dtable.h (class dtable): Add member `cnt_need_fixup_before'. Add
definition for methods `dec_need_fixup_before', `inc_need_fixup_before',
`need_fixup_before', `fixup_before_exec' and `fixup_before_fork'.
* fhandler.h (class fhandler_base): Slight rearrangements. Add
definitions for methods `fixup_before_fork_exec'.
(class fhandler_socket): Eliminate superfluous constructor.
Add member `prot_info_ptr'. Add destructor. Add definitions for
methods `dup', `fixup_before_fork_exec', `fixup_after_fork' and
`fixup_after_exec'.
* fork.cc (fork_parent): Care for file types which need a fixup
before fork. Start child in suspended state then.
* net.cc: New global variable `ws2_32_handle' and `wsadata'.
(fdsock): Check for Winsock version. Call `set_socket_inheritance'
only if Winsock version < 2.0. Care for `need_fixup' count in fdtab.
(cygwin_socket): Eliminate call to `set_socket_inheritance'.
(cygwin_accept): Ditto.
(cygwin_rcmd): Ditto.
(cygwin_rresvport): Ditto.
(cygwin_rexec): Ditto.
(socketpair): Ditto.
(fhandler_socket::fhandler_socket): Set `need_fork_fixup'. Allocate
space for the WSAPROTOCOL_INFOA struct used in fixup.
(fhandler_socket::~fhandler_socket): New destructor.
(fhandler_socket::fixup_before_fork_exec): New method.
(fhandler_socket::fixup_after_fork): Ditto.
(fhandler_socket::dup): Ditto.
(wsock_init): New static function.
(LoadDLLinitfunc (wsock32)): Rearranged.
(LoadDLLinitfunc (ws2_32)): New function.
(dummy_autoload): Add autoload statemants for `WSADuplicateSocketA'
and `WSASocketA'.
* spawn.cc (spawn_guts): Care for file types which need a fixup
before exec. Start child in suspended state then.
process has never created any children.
* fork.cc (fork): Set flag indicating that there is another process with our
process group.
* spawn.cc (spawn_guts): Ditto.
* pinfo.h (set_has_pgid_children): New methods for setting when process has
children in its process group.
* syscalls.cc (setpgid): Clear has_gid_children if pgid changes.
* fhandler_mem.cc: Move ntdll.dll specific definitions and
declarations to ntdll.h.
* sysconf.cc (sysconf): Add support for _SC_NPROCESSORS_CONF,
_SC_NPROCESSORS_ONLN, _SC_PHYS_PAGES and _SC_AVPHYS_PAGES.
* path.h: Remove unneeded extern.
* spawn.cc (std_suffixes): Make static. Don't set dwProcessId here since it
makes the process unsignalable. Set strace flag that this is an execed process
stub.
* strace.cc (strace::vsprntf): Use strace flag to indicate when to visually
flag that this is an exec stub.
* include/sys/strace.h (strace): Add 'execing' flag.
* security.cc (write_sd): Call `set_process_privileges' on the first
call to `write_sd'.
(set_process_privileges): Eliminate adjusting SE_BACKUP_NAME privilege.
* fhandler_console.cc (fhandler_console::tcsetpgrp): Eliminate.
* fork.cc (fork_parent): Avoid returning same pid twice in a row regardless of
OS.
* pinfo.cc (pinfo::init): Rename create argument to flags and treat it as such.
* signal.cc (set_sigcatchers): New function.
(signal): Use set_sigcatchers to increment or decrement sigcatcher tracker.
(sigaction): Ditto. Add debugging output.
* spawn.cc (spawn_guts): Always quote first argv[0] argument when it's a
COMSPEC shell.
finding execed processes twice.
* signal.cc (kill_pgrp): Ditto.
* spawn.cc (spawn_guts): Avoid passing first argument to CreateProcess when
running a windows shell so that CreateProcess will locate the shell.
Reorganize so that correct error is returned when CreateProcess fails.
is not available.
* dcrt0.cc (sigthread::init): Ditto.
(dll_crt0_1): Move set_process_privileges call (temporarily?) to pinfo_init.
(pinfo_init): Only call set_process_privileges when allow_ntsec.
* environ.cc (conv_start_chars): Cache a table of "first
characters" for environment variables needing conversion.
(getwinenv): Use it.
(environ_init): Create it, also check first chars for TERM and
CYGWIN.
* path.cc: Use lookup table for case insensitive comparisons.
active.
* syscalls.cc (_read): Don't clear errno.
* sigproc.cc (wait_sig): Don't scan the waiting process list after a SIGCHLD if
there are no zombies to reap.
* winsup.h: Use __builtin_strcmp.
* environ.cc (posify): Don't initialize len unless it is required
(from DJ Delorie <dj@redhat.com>).
PROC_ADDCHILD. Return 0 when terminated child has just been reparented.
(wait_subproc): Only send SIGCHLD when proc_subproc returns != 0.
* strace.cc (strace::vsprntf): Only strip .exe extension from program name.
* Makefile.in: include fhandler_clipboard.o in DLL_OFILES list.
* fhandler.h: add FH_CLIPBOARD to the devices enum.
(fhandler_dev_clipboard): new
* path.cc (windows_device_names): add "\\dev\\clipboard"
(get_device_number): check for "clipboard"
* dcrt0.cc: declare a few more functions from winuser.h
* dtable.cc (dtable::build_fhandler): check for FH_CLIPBOARD in
switch().
than once.
* fhandler_tty.cc (fhandler_tty_slave::open): Protect some handles.
(fhandler_tty_common::close): Use proper name when closing handles.
(fhandler_pty_master::close): Don't close to_slave or from_slave since they've
already been closed earlier in the function.
* sigproc.cc (proc_subproc): Don't protect vchild->hProcess. Expect that the
caller will do this, instead.
* tty.cc (tty_list::terminate): Use proper name when closing handles.
(tty::make_pipes): Protect some handles.
Christopher Faylor
Corinna Vinschen
DJ Delorie