* exceptions.cc (windows_system_directory): Make static. Convert to
WCHAR.
(_cygtls::inside_kernel): Accommodate above change. Check module
path name for leading \\?\ and skip, if so.
(try_to_debug): Call GetEnvironmentStringsW and convert evaluation to
WCHAR to avoid truncated environment problem.
(has_visible_window_station): Call GetUserObjectInformationW.
(events_init): Accommodate above conversion of windows_system_directory.
* init.cc (respawn_wow64_process): Use WCHAR functions to start new
process.
* net.cc (__dup_ent): Drop Windows 9x consideration.
(load_ipv6_funcs): Use WCHAR functions to load IPv6 libs.
* syscalls.cc (syscalls.cc): Remove call to GetDiskFreeSpace.
fstab files. Fallback to registry if none exists.
(skip_ws): New inline function.
(find_ws): Ditto.
(struct opt): New structure for mount options.
(read_flags): New static function to convert a mount flags string into
a flag value.
(mount_info::from_fstab_line): New method to create a mount table
entry from a fstab line.
(mount_info::from_fstab): New method to read fstab file.
* shared_info.h (mount_info::from_fstab_line): Declare.
(mount_info::from_fstab): Declare.
to read reparse points.
(enum shortcut_t): New type.
(symlink_info::check): Convert sym_check to shortcut_t. Use shortcut_t
enum values throughout. Check reparse point before checking for
sysfile shortcut. Open reparse points with READ_CONTROL only to
accommodate special Vista reparse points. Add comments.
Revamp advisory file locking to avoid cross reference pointers as well
as to allow BSD flock semantics. More agressively delete unused nodes
and sync objects.
* fhandler.h (fhandler_base::ino): Rename from namehash. Fix comment.
(fhandler_base::node): Remove.
(fhandler_base::unique_id): Add.
(fhandler_base::del_my_locks): New method.
(get_ino): Rename from get_namehash. Change usage throughout Cygwin.
(get_unique_id): New method.
* fhandler.cc (fhandler_base::close): Call own del_my_locks method.
Fix comment.
(fhandler_base::fhandler_base): Accommodate new and changed members.
(fhandler_base::fixup_after_fork): Call del_my_locks.
(fhandler_base::fixup_after_exec): Ditto for files with close-on-exec
flag set.
* fhandler_disk_file.cc (get_ino_by_handle): Rename from
readdir_get_ino_by_handle. Accommodate throughout.
(fhandler_base::open_fs): Fill ino with inode number if FS has good
inodes. Allocate a LUID and store in unique_id to recognize file
descriptors referencing the same file object.
* flock.cc: Drop flock TODO comments. Use explicit types __dev32_t
and __ino64_t instead of dev_t and ino_t.
(LOCK_OBJ_NAME_LEN): Change to reflect longer lf_id length.
(get_obj_handle_count): New method.
(lockf_t::lf_id): Change type to long long.
(inode_t::get_lock_obj_handle_count): Drop in favor of static function
get_obj_handle_count.
(inode_t::del_locks): Remove.
(inode_t::get): Add create_if_missing flag argument.
(inode_t::del_my_locks): Reimplement to handle POSIX and BSD flock
locks. Return if node can be deleted or not.
(inode_t::~inode_t): Ditto. Close handles to i_dir and i_mtx.
(fixup_lockf_after_fork): Remove.
(fhandler_base::del_my_locks): New method.
(fixup_lockf_after_exec): Check if node can be deleted.
(inode_t::get): Only create node if create_if_missing is set. Lock
the returned node here before unlocking the node list.
(inode_t::get_all_locks_list): Accommodate new lf_id length.
(inode_t::create_lock_obj): Ditto.
(lockf_t::open_lock_obj): Ditto. Change return type to bool. De-const.
Set lf_obj instead of returning a handle.
(lockf_t::del_lock_obj): Call SetEvent only if new incoming parameters
allow it. Explain how it's supposed to work.
(fhandler_disk_file::lock): Only fetch file length in SEEK_END case.
Use NtQueryInformationFile(FileStandardInformation) instead of
calling fstat_by_handle. Always unlock node before returning.
Use fhandler's unique id to create lf_id for BSD flock locks.
Rely on node lock from inode_t::get. Call del_lock_obj on removed
locks here to allow explicit unlocking. Delete node if no lock exists
on the file anymore.
(lf_setlock): Get file handle as additional parameter. Handle the fact
that lf_getblock now always opens the attached event object. Reactivate
erroneously applied patch which deactivates setting thread priority.
Additionally handle blocking on BSD flock locks.
(lf_clearlock): Get file handle as additional parameter.
(lf_getlock): Close event handle opened by lf_getblock.
(lf_getblock): Open potentially blocking event object here and check
its signal state if it's a BSD flock lock.
(lf_wakelock): Get file handle as additional parameter.
* fork.cc (frok::child): Drop call to fixup_lockf_after_fork.
* ntdll.h (struct _EVENT_BASIC_INFORMATION): Define.
(enum _EVENT_INFORMATION_CLASS): Define.
(NtQueryEvent): Declare.
* fhandler.h (fhandler_base::fs_flags): Remove.
(fhandler_base::set_fs_flags): Remove.
(fhandler_base::get_fs_flags): Remove.
* fhandler.cc (fhandler_base::write): Check for sparse file using
pc.fs_flags().
* fhandler_disk_file.cc (fhandler_disk_file::ftruncate): Ditto.
The return of the volume serial number in fs_info.
* fhandler.h (get_dev): New method.
* fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Drop call to
NtQueryVolumeInformationFile(FileFsVolumeInformation). Just use
get_dev() method.
* fhandler_fifo.cc (fhandler_fifo::open) Use device ID and inode number
to generate fifo name.
* path.h (fs_info::sernum): New member.
(fs_info::serial_number): New method.
(path_conv::fs_serial_number): New method.
* path.cc (fs_info::update): Fetch volume serial number and store in
sernum.
cmalloc instead of ccalloc in the default operator. Add comments.
(inode_t::operator new): Call cmalloc instead of ccalloc.
(inode_t::get_all_locks_list): Return lockf_t pointer.
(inode_t::del_all_locks_list): Delete. Remove calls throughout.
(inode_t::get): Handle failing new gracefully.
(MAX_LOCKF_CNT): Define.
(inode_t::get_all_locks_list): Use pre-allocated buffer in i_all_lf
instead of allocating every lock. Return pointer to start of linked
list of locks.
(lockf_t::open_lock_obj): Create event object non-inheritable.
(fhandler_disk_file::lock): Handle failing new gracefully.
(lf_setlock): Allocate temporary buffer for node->i_all_lf from TLS.
Remove erroneous NtClose call.
(lf_getlock): Allocate temporary buffer for node->i_all_lf from TLS.
(lf_getblock): Set lf to return value of get_all_locks_list.
(FLOCK_INODE_DIR_ACCESS): Define.
(FLOCK_MUTANT_ACCESS): Define.
(FLOCK_EVENT_ACCESS): Define.
(SD_MIN_SIZE): Define.
(everyone_sd): Define to simplify calling _everyone_sd.
(_everyone_sd): Replace everyone_sync_sd. Take SECURITY_DESCRIPTOR as
argument and allow to specify access mask.
(get_lock_parent_dir): Open/Create parent dir with
FLOCK_PARENT_DIR_ACCESS. Add text to api_fatal message.
(inode_t::inode_t): Open/Create dir with FLOCK_INODE_DIR_ACCESS.
Open/Create mutant with FLOCK_MUTANT_ACCESS. Add text to api_fatal
message.
(lockf_t::create_lock_obj): Create event with FLOCK_EVENT_ACCESS.
Add text to api_fatal message.
(lockf_t::open_lock_obj): Open event with FLOCK_EVENT_ACCESS.
On failure, just return NULL pointer instead of calling api_fatal.
(lockf_t::get_lock_obj_handle_count): Replace call to small_printf
with call to debug_printf.
(lf_setlock): Handle a failure to open the lock event object as
EDEADLK. Call system_printf if opening sync objects fail.
* ntdll.h (DIRECTORY_TRAVERSE): Define.
(DIRECTORY_CREATE_OBJECT): Define.
(DIRECTORY_CREATE_SUBDIRECTORY): Define.
(EVENT_QUERY_STATE): Define.
* pinfo.cc (status_exit): New function. Issue message when dll not found. Use
find_first_notloaded_dll to find a nonexistent dll.
(pinfo::maybe_set_exit_code_from_windows): Call status_exit when exit code >=
0xc0000000UL.
* sigproc.cc (child_info::proc_retry): Return exit code when
STATUS_DLL_NOT_FOUND.
* spawn.cc (spawn_guts): Minor cleanup.
* syscalls.cc (close_all_files): Don't actually close stderr filehandle. Just
make it noninheritable.
* winsup.h (find_first_notloaded_dll): Declare new function.
* ntdll.h: Add several missing NTSTATUS defines.
in lock event object name.
(lockf_t::create_lock_obj): Ditto.
(lockf_t::open_lock_obj): Ditto.
(lf_setlock): Only check POSIX locks for deadlock condition.
(lf_findoverlap): Don't let POSIX and flock locks interact.
constants.
(dtable::init_std_file_from_handle): Reorganize pipe handling to try to catch
special tty case.
(build_fh_name_worker): Declare for common use.
(build_fh_name): Define char version.
(build_fh_name): Define (currently unused) UNICODE_STRING version.
(decode_tty): Detect if pipe is actually a cygwin tty, returning the tty name
in the buffer.
(handle_to_fn): Reorganize to use wide characters.
* dtable.h (build_fh_name): Declare (currently unused) UNICODE_STRING version.
* fhandler_tty.cc (fhandler_pty_master::setup): Use
fhandler_pipe::create_selectable to create a pipe with a given name.
* pipe.cc (pipe_handler): Make returned handle inheritable.
(fhandler_pipe::create_selectable): Take an optional name. Use a standard
cygwin introducer for the name.
* path.cc (path_conv::check): Make first argument const.
* path.h (path_conv::check): Ditto for declaration.
(path_conv::path_conv): Ditto for UNICODE_STRING version.
* include/mprapi.h: Add guard for MprAdminAcceptReauthentication function
and MPR_INTERFACE_3 structure since they are available only in Windows
Server 2008
(is_symlink): Rewrite. Just read the whole file in memory rather
than by parts. Account for an ITEMIDLIST if present, as well as
the new style of Cygwin shortcut supporting targets > MAX_PATH.
for new path API.
* security.sgml: New file to document cygwin_set_impersonation_token
and cygwin_logon_user with only eight years of delay.
* shared.sgml: Remove file.
* include/sys/cygwin.h (cygwin32_attach_handle_to_fd): Move declaration
into fully deprecated function block.
(cygwin_logon_user): Move declaration down to declaration of
cygwin_set_impersonation_token.
munging. Convert all chars in the 0xf0xx area to it's ascii equivalent.
* path.cc (normalize_posix_path): Don't treat "X:foo" as windows path,
only "a:\foo".
(tfx_chars): New transformation table for special DOS chars.
(tfx_chars_managed): Ditto, plus transformation of uppercase ASCII
chars.
(transform_chars): New function.
(get_nt_native_path): Make static. Call transform_chars for all valid
FS paths. Get additional flag if file is managed or not. Accommodate
throughout.
(getfileattr): Get additional flag if file is managed or not.
Accommodate throughout.
(path_conv::check): Disable special handling for trailing dots and
spaces.
(mount_item::build_win32): Disable code for managed paths.
(mount_info::conv_to_posix_path): Ditto.
* path.h (get_nt_native_path): Remove declaration.
Accommodate change throughout.
* cygwin.din (cygwin_conv_path): Export.
(cygwin_conv_path_list): Export.
(cygwin_create_path): Export.
* dcrt0.cc (dll_crt0_1): Use cygwin_conv_path.
* dtable.cc (handle_to_fn): Ditto. Don't expect UNICODE_STRING being
0-terminated.
* environ.cc (env_plist_to_posix): New helper function.
(env_plist_to_win32): Ditto.
(env_path_to_posix): Ditto.
(env_path_to_win32): Ditto.
(return_MAX_PATH): Remove.
(conv_envvars): Use new helper functions. Drop removed members.
(win_env::operator =): Accommodate removal of path length functions.
(win_env::add_cache): Accommodate new env helper function API.
(posify): Ditto.
* environ.h (struct win_env): Ditto. Remove path length function
pointers since they are unused.
* path.cc (warn_msdos): Use cygwin_conv_path.
(getfileattr): Use new tmp_pathbuf::u_get method.
(fillout_mntent): Ditto.
(symlink_info::check): Ditto.
(path_conv::check): Use sizeof (WCHAR) instead of constant 2.
(symlink_info::check_reparse_point): Ditto.
(conv_path_list): Get max size of target string as argument. Call
cygwin_conv_path as helper function.
(cygwin_conv_path): New function.
(cygwin_create_path): New function.
(cygwin_conv_to_win32_path): Just call cygwin_conv_path with size set
to MAX_PATH.
(cygwin_conv_to_full_win32_path): Ditto.
(cygwin_conv_to_posix_path): Ditto.
(cygwin_conv_to_full_posix_path): Ditto.
(conv_path_list_buf_size): Add FIXME comment.
(env_PATH_to_posix): Rename from env_win32_to_posix_path_list.
Add size argument as required for env helper functions.
(cygwin_win32_to_posix_path_list): Call conv_path_list with size set to
MAX_PATH.
(cygwin_posix_to_win32_path_list): Ditto.
(cygwin_conv_path_list): New function.
(cwdstuff::get): Fix length argument in call to sys_wcstombs.
* spawn.cc (find_exec): Use cygwin_conv_path_list.
* tls_pbuf.h (tmp_pathbuf::u_get: New method.
* uinfo.cc (cygheap_user::ontherange): Allocate temporary path buffers
using tmp_pathbuf. Use cygwin_conv_path.
* winf.cc (av::unshift): Use cygwin_conv_path.
* include/cygwin/version.h: Bump API minor number.
* include/sys/cygwin.h: Comment out old cygwin32_XXX API.
Mark old path handling API as deprecated.
(cygwin_conv_path_t): Typedef. Define values.
(cygwin_conv_path): Declare.
(cygwin_create_path): Declare.
(cygwin_conv_path_list): Declare.
(find_app_on_path): Use SYMLINK_MAX. Resolve symlink relative
to link's location. Adjust to the fact that cygpath already
normalizes its return value.
* path.cc (rel_vconcat): Add cwd parameter, and use it instead
of calling GetCurrentDirectory() if possible. Rename throughout.
(vcygpath): Rename from cygpath and accept cwd and va_list. Pass
cwd on to rel_vconcat().
(cygpath_rel): New front end for vcygpath.
(cygpath): Ditto.
* path.h (cygpath_rel): Declare.
(SYMLINK_MAX): Define to 4095.
paths. Add comments.
* spawn.cc (spawn_guts): Don't allow to start a native Win32 application
from a long path or a virtual path. Print an error message to stderr.
(regopt): Take tmp buffer as additional argument.
(environ_init): Alllcate tmpbuf earlier. Use as temporary buffer in
call to regopt.
* tls_pbuf.cc (tmp_pathbuf::c_get): Allocate one additional char.
(tmp_pathbuf::w_get): Allocate one additional WCHAR.
* winf.cc (av::unshift): Use tmp_pathbuf to allocate buffer.
Corinna Vinschen