These errno values are no longer used by Cygwin. Change the entries
to empty strings instead of NULL to avoid crashes in existing
binaries directly accessing the table. Enhance strerror_worker()
such that empty strings also result in "Unknown error ..." messages.
Also add a static_assert check for the _sys_errlist[] size.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
Use constexpr instead of const for errmap[] to allow static_assert
checks on its values.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
To avoid linear searches for error codes, autogenerate errmap as
simple array of errno values indexed by Windows error codes.
Restrict to the first 9000 Windows error codes, we don't care for
most of them anyway.
Define errmap in its own file errmap.h to clean up errno.cc.
Change geterrno_from_win_error accordingly.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Add a _REENT_ERRNO() macro to encapsulate the access to the
_errno member of struct reent. This will help to replace the
structure member with a thread-local storage object in a follow
up patch.
Replace uses of __errno_r() with _REENT_ERRNO(). Keep __errno_r() macro for
potential users outside of Newlib.
Rather than special case status code 0xc00004b3, add status and matching
error code to ntdll.h and handle it as part of the standard error mapping.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
- Move definition of windows to POSIX error mapping struct into
cygerrno.h
- Move declaration of winsock errno functions to cygerrno.h
- Input to error mapping functions is DWORD
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
We use errno AKA _REENT->_errno since the last century and only set
_impure_ptr->_errno for backward compat. Stop that. Also, remove
the last check for _impure_ptr->_errno in Cygwin code.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Bump GPLv2+ to GPLv3+ for some files, clarify BSD 2-clause.
Everything else stays under GPLv3+.
New Linking Exception exempts resulting executables from LGPLv3 section 4.
Add CONTRIBUTORS file to keep track of licensing.
Remove 'Copyright Red Hat Inc' comments.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
(mainly in fhandler*) start fixing gcc 4.7.2 mismatch between regparm
definitions and declarations.
* gendef: Define some functions to take @ declaration to accommodate _regN
defines which use __stdcall.
* gentls_offsets: Define __regN macros as empty.
* autoload.cc (wsock_init): Remove unneeded regparm attribute.
* winsup.h (__reg1): Define.
(__reg2): Define.
(__reg3): Define.
* advapi32.cc (DuplicateTokenEx): Coerce some initializers to avoid warnings
from gcc 4.7.2.
* exceptions.cc (status_info): Declare struct to use NTSTATUS.
(cygwin_exception::dump_exception): Coerce e->ExceptionCode to NTSTATUS.
* fhandler_clipboard.cc (cygnativeformat): Redefine as UINT to avoid gcc 4.7.2
warnings.
(fhandler_dev_clipboard::read): Ditto.
Throughout, change syscalls to report on return values using new %R format
option.
* smallprint.cc (__small_vsprintf): Add parsing for %R to report on return
values and possible errno from syscalls.
* errno.cc (errmap): Add PRIVILEGE_NOT_HELD.
* fhandler_tty.cc (fhandler_pty_master::setup): When creating a thread use
shorter name to reduce debuggging output.
* select.cc (start_thread_pipe): Ditto.
(start_thread_serial): Ditto.
(start_thread_socket): Ditto.
(start_thread_mailslot): Ditto.
* sigproc.cc (talktome): Ditto.
* errno.cc (geterrno_from_nt_status): Define.
* flock.cc: Fix copyright dates.
* ntdll.h (enum _TIMER_TYPE): Define.
(PTIMER_APC_ROUTINE): Define.
(NtCancelTimer): Declare.
(NtCreateTimer): Declare.
(NtSetTimer): Declare.
* posix_ipc.cc (ipc_cond_timedwait): Rewrite to make interruptible and
restartable. Call pthread_testcancel in case of timeout to enable
pthread_cancel on waiting thread. Replace WFMO timeout with waiting
for a waitable timer. Explain why. Replace single call to WFMO with
two calls, one for the event, one for the mutex. Don't lock mutex in
case of error.
(ipc_cond_signal): Make void function.
(ipc_cond_close): Ditto.
(_mq_send): Immediately return -1 in case of error from
ipc_cond_timedwait.
(_mq_receive): Ditto.
* fhandler.cc (MAX_OVERLAPPED_WRITE_LEN): New constant.
(MIN_OVERLAPPED_WRITE_LEN): Ditto.
(fhandler_base_overlapped::close): Accommodate change in arguments to
wait_overlapped.
(fhandler_base_overlapped::setup_overlapped): Add __stdcall and regparm
modifiers.
(fhandler_base_overlapped::destroy_overlapped): Ditto.
(fhandler_base_overlapped::has_ongoing_io): Ditto.
(fhandler_base_overlapped::wait_overlapped): Modify to return an enum returning
various states. Accept nonblocking parameter.
(fhandler_base_overlapped::read_overlapped): Add __stdcall and regparm
modifiers. Rework to attempt to be smarter about reacting to states returned
by wait_overlapped.
(fhandler_base_overlapped::write_overlapped): Ditto. Add fallback option for
when wait_overlapped detects that smaller chunks must be written.
(fhandler_base_overlapped::write_overlapped_fallback): Ditto.
* fhandler.h (DEFAULT_PIPEBUFSIZE): Move definition here from pipe.cc.
(fhandler_base::has_ongoing_io): Define with __stdcall and regparm modifiers.
(fhandler_base_overlapped::wait_return): New enum.
(fhandler_base_overlapped::max_atomic_write): New variable.
(fhandler_base_overlapped:: wait_overlapped): Accommodate changes mentioned
above to arguments and modifiers.
(fhandler_base_overlapped::setup_overlapped): Ditto for modifiers.
(fhandler_base_overlapped::read_overlapped): Ditto.
(fhandler_base_overlapped::write_overlapped): Ditto.
(fhandler_base_overlapped::destroy_overlapped): Ditto.
(fhandler_base_overlapped::has_ongoing_io): Ditto.
(fhandler_base_overlapped::fhandler_base_overlapped): Zero max_atomic_write.
* fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Set max_atomic_write to the
size of the DEFAULT_PIPEBUFSIZE.
(fhandler_fifo::wait): Accommodate change in arguments to wait_overlapped.
* pipe.cc (fhandler_pipe::fhandler_pipe): Set max_atomic_write to the size of
the DEFAULT_PIPEBUFSIZE.
(fhandler_pipe::create_selectable): Allow minimum size of DEFAULT_PIPEBUFSIZE.
(DEFAULT_PIPEBUFSIZE): Delete here, move to fhandler.h.
* errno.cc (__xpg_strerror_r): New function.
(strerror_r): Update to copy newlib's fixes.
(strerror): Set errno on failure.
(_sys_errlist): Cause EINVAL failure for reserved values.
* cygwin.din: Export new function.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Combine
this into minor 236.
* exec.cc (execvp): Call spawnve with _P_PATH_TYPE_EXEC flag
from here.
(execvpe): Ditto.
* spawn.cc (spawn_guts): Filter _P_PATH_TYPE_EXEC from mode and
store in p_type_exec. Call av::fixup with addtional p_type_exec
argument.
(spawnve): Check for filtered mode.
(spawnvpe): Add _P_PATH_TYPE_EXEC flag when calling spawnve.
(av::fixup): Accept additional bool parameter p_type_exec. Only check
for script if p_type_exec is true.
* winf.h (_P_PATH_TYPE_EXEC): Define.
(_P_MODE): Define.
(av::fixup): Declare with additional bool parameter.
* fhandler_disk_file.cc (fhandler_disk_file::facl): Handle ENOSYS and
point to the explanation.
* ntdll.h (STATUS_NOT_IMPLEMENTED): Define.
* path.cc (symlink_info::check): Handle the inability of NT4 to use
FileNetworkOpenInformation on share root dirs in either direction.
* path.h (slash_unc_prefix_p): Remove unused declaration.
* security.cc (get_info_from_sd): Handle ENOSYS from get_file_sd.
Explain when this happens.
(__seterrno_from_nt_status): Call seterrno_from_nt_status.
* errno.cc (seterrno_from_win_error): Set errno without calling
set_errno to avoid packing strace output with errno messages.
(seterrno_from_nt_status): New function to print NT status as well as
resulting Windows error.
* fhandler.cc (fhandler_base::fcntl): Fix comment.
(fhandler_base::wait_overlapped): Accept an optional len parameter. Use the
len parameter when WriteFile fails with ERROR_IO_PENDING. Make debug output
less alarming.
(fhandler_base::write_overlapped): Pass len to wait_overlapped.
* fhandler.h (fhandler_base::wait_overlapped): Add an optional argument
denoting the number of characters intended to be written.
* fhandler_tty.cc (fhandler_pty_master::close): Don't close archetype handles
when cygwin is still initializing since the handles aren't actually opened at
that point.
MAX_DOMAIN_NAME_LEN throughout.
* cyglsa.h (CYG_LSA_MAGIC): New value.
(cyglsa_t): Define username and domain as WCHAR arrays.
* errno.cc (errmap): Add mapping for ERROR_NONE_MAPPED.
* sec_auth.cc: Drop 'w' prefix from WCHAR string variable names where
appropriate.
(extract_nt_dom_user): Prefer resolving by SID before resolving by
domain\name pair.
(cygwin_logon_user): Don't print cleartext password in debug output.
Change comment.
(get_user_groups): Revert calls to LookupAccountNameW to use NULL
server instead of explicit server name, according to MSDN.
(get_user_local_groups): Ditto.
(get_server_groups): Fetch domain and user name from usersid per
LookupAccountSidW instead of calling extract_nt_dom_user.
(lsaauth): Fetch domain and user name from usersid per LookupAccountSidW
instead of calling extract_nt_dom_user.
* sec_helper.cc (cygpriv): Convert to wchar_t pointer array.
(privilege_luid): Convert first parameter to PWCHAR.
(privilege_name): Return wchar_t pointer.
(set_privileges): Accommodate debug output.
* security.h (privilege_luid): Change prototype accordingly.
* cygwin.din (getxattr, listxattr, removexattr, setxattr, lgetxattr,
llistxattr, lremovexattr, lsetxattr, fgetxattr, flistxattr,
fremovexattr, fsetxattr): Export Linux extended attribute functions.
Sort.
* errno.cc (errmap): Add mappings for ERROR_EAS_DIDNT_FIT,
ERROR_EAS_NOT_SUPPORTED, ERROR_EA_LIST_INCONSISTENT,
ERROR_EA_TABLE_FULL, ERROR_FILE_CORRUPT, ERROR_INVALID_EA_NAME.
* fhandler.h (class fhandler_base): Declare new fgetxattr and
fsetxattr methods.
(class fhandler_disk_file): Ditto.
* fhandler.cc (fhandler_base::fgetxattr): New method.
(fhandler_base::fsetxattr): New method.
* fhandler_disk_file.cc (fhandler_disk_file::fgetxattr): New method.
(fhandler_disk_file::fsetxattr): New method.
* ntdll.h (STATUS_EA_TOO_LARGE): Define.
(STATUS_NONEXISTENT_EA_ENTRY): Define.
(STATUS_NO_EAS_ON_FILE): Define.
* ntea.cc (read_ea): Rewrite for long pathnames and for using with
Linux extended attribute functions.
(write_ea): Ditto.
(getxattr_worker): New static function.
(getxattr): New function.
(lgetxattr): New function.
(fgetxattr): New function.
(listxattr): New function.
(llistxattr): New function.
(flistxattr): New function.
(setxattr_worker): New static function.
(setxattr): New function.
(lsetxattr): New function.
(fsetxattr): New function.
(removexattr): New function.
(lsetxattr): New function.
(fsetxattr): New function.
* security.h (read_ea): Change declaration according to above changes.
(write_ea): Ditto.
* include/cygwin/version.h: Bump API minor version.
appropriately.
* pinfo.cc (pinfo::exit): Always call sigproc_terminate here. Rely on
sigproc_terminate to signal signal thread to handle eventual process exit.
* sigproc.cc (no_signals_available): Change criteria for determining if this
process can handle signals to itself.
(my_sendsig): New variable. Copy of my sendsig handle.
(proc_can_be_signalled): Don't send signals if exit code is set.
(sigproc_terminate): Use and set exit_state appropriately to determine when to
do anything. Send __SIGEXIT to self to control process exit.
(sig_send): Use my_sendsig for sending signals. Don't call
proc_can_be_signalled for myself since the criteria is now different for
sending signals to myself.
(wait_sig): Copy myself->sendsig to my_sendsig for future use. Exit signal
loop when __SIGEXIT is received. Wait for main thread to exit and use its exit
status to actually exit process.
* sigproc.h (__SIGEXIT): New enum.
* dcrt0.cc (alloc_stack): Eliminate superfluous "return;".
* debug.cc (add_handle): Ditto.
* devices.in (device::parse): Ditto.
* dtable.cc (dtable::vfork_parent_restore): Ditto.
(dtable::vfork_child_fixup): Ditto.
* environ.cc (parse_options): Ditto.
* errno.cc (seterrno_from_win_error): Ditto.
* exceptions.cc (sig_handle_tty_stop): Ditto.
(set_signal_mask): Ditto.
* fhandler.cc (fhandler_base::read): Ditto.
(fhandler_base::operator delete): Ditto.
(fhandler_base::seekdir): Ditto.
(fhandler_base::rewinddir): Ditto.
* fhandler_console.cc (fhandler_console::read): Ditto.
(fhandler_console::fixup_after_exec): Ditto.
* sigproc.cc (sigproc_init): Ditto.
(sigproc_terminate): Ditto.
* devices.cc: Regenerate.
Christian Franke
Corinna Vinschen
Matt Joyce
Ken Brown
Christopher Faylor
Eric Blake
Yaakov Selkowitz