Commit Graph

34 Commits

Author SHA1 Message Date
Yaakov Selkowitz 032aa2dba5 Feature test macros overhaul: Cygwin limits.h, part 2
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/limits.h.html
https://sourceware.org/ml/newlib/2017/msg01133.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-28 04:11:33 -06:00
Eric Blake 6795ef7d37 Fix 32-bit SSIZE_MAX
POSIX requires that SSIZE_MAX have the same type as ssize_t, but
on 32-bit, we were defining it as a long even though ssize_t
resolves to an int.  It also requires that SSIZE_MAX be usable
via preprocessor #if, so we can't cheat and use a cast.

If this were newlib, I'd have had to hack _intsup.h to probe the
qualities of size_t (via gcc's __SIZE_TYPE__), similar to how we
already probe the qualities of int8_t and friends, then cross our
fingers that ssize_t happens to have the same rank (most systems
do, but POSIX permits a system where they differ such as size_t
being long while ssize_t is int).  Unfortunately gcc gives us
neither __SSIZE_TYPE__ nor __SSIZE_MAX__.  On the other hand, our
limits.h is specific to cygwin, so we can just shortcut to the
correct results rather than being generic to all possible ABI.

Signed-off-by: Eric Blake <eblake@redhat.com>
2016-07-14 12:38:49 -06:00
Corinna Vinschen 6e623e9320 Switching the Cygwin DLL to LGPLv3+, dropping commercial buyout option
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>
2016-06-23 10:09:17 +02:00
Yaakov Selkowitz 86a724b8c0 Feature test macros overhaul: limits.h
Simplify the C99 conditional, and use the internal macro for GNU extensions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:57 -05:00
Corinna Vinschen 61522196c7 * Merge in cygwin-64bit-branch. 2013-04-23 09:44:36 +00:00
Christopher Faylor bc837d22f3 Throughout, update copyrights to reflect dates which correspond to main-branch
checkins.  Regularize copyright format.
2013-01-21 04:38:31 +00:00
Corinna Vinschen 74d1d0ee80 * fhandler_clipboard.cc (fhandler_dev_clipboard::read): Use
read-ahead buffer for reading Windows clipboard if caller's
	buffer is too small for complete characters.
	* include/limits.h: Remove outdated TODO comment.
2012-08-17 09:23:34 +00:00
Yaakov Selkowitz 7ec669539f * sysconf.cc (sca): Return -1 for _SC_THREAD_ROBUST_PRIO_INHERIT,
_SC_THREAD_ROBUST_PRIO_PROTECT, and _SC_XOPEN_UUCP.
(SC_MAX): Redefine accordingly.
(csa): Return strings for _CS_POSIX_V7_THREADS_CFLAGS,
_CS_POSIX_V7_THREADS_LDFLAGS, and _CS_V7_ENV.
(CS_MAX): Redefine accordingly.
* include/limits.h (LONG_BIT): Define.
(WORD_BIT): Define.
2011-07-18 23:08:09 +00:00
Corinna Vinschen b1ce1770ea * include/limits.h (NGROUPS_MAX): Set to a more sane value.
* include/sys/param.h (NGROUPS): Ditto.
2009-08-11 07:28:22 +00:00
Corinna Vinschen 3db08eeece * include/limits.h (PATH_MAX): Add comment.
* include/cygwin/config.h (__FILENAME_MAX__): Define as 4096.  Add
	comment.
2008-06-21 20:24:45 +00:00
Corinna Vinschen 7b4b41ab3e * cygheap.cc (cwcsdup): New function.
(cwcsdup1): New function.
	* cygheap.h (cygheap_user::get_windows_id): New method returning PWCHAR.
	(cwcsdup): Declare.
	(cwcsdup1): Declare.
	* registry.cc (get_registry_hive_path): Use WCHAR instead of char
	throughout.
	(load_registry_hive): Ditto.
	* registry.h (get_registry_hive_path): Change declaration accordingly.
	(load_registry_hive): Ditto.
	* sec_helper.cc (cygpsid::string): New method returning PWCHAR.
	* security.h (cygpsid::string): Declare.
	* syscalls.cc (seteuid32): Convert local name var to WCHAR.
	* uinfo.cc (cygheap_user::env_userprofile): Convert local name buffers
	to WCHAR.  Call sys_wcstombs_alloc to generate puserprof buffer.

	* winsup.h: Fix comment.
	(NT_MAX_PATH): New definition for maximum internal path length.
	Use throughout where appropriate.
	* include/limits.h (PATH_MAX): Set to 4096 as on Linux.
2008-02-14 16:47:11 +00:00
Corinna Vinschen 4b65f19045 * fhandler.h (fhandler_console::trunc_buf): Add to use as cache for
truncated multibyte characters on input.
	(fhandler_console::write_replacement_char): Declare new method.
	* fhandler_console.cc (CONVERT_LIMIT): Raise to 64K.
	(fhandler_console::fhandler_console): Initialize trunc_buf.
	(ERR): Define as independent value again.
	(fhandler_console::write_replacement_char): New method to print
	replacement chars.
	(fhandler_console::write_normal): Add handling for truncated multibyte
	sequences.  Call next_char instead of pathetic CharNextExA function.
	Don't change src, rather just work with found later on.
	* miscfuncs.cc (is_cp_multibyte): Move here from strfuncs.cc.
	Don't call Windows function, restrict to well-known ANSI/OEM codepages
	and UTF-8.
	(next_char): Call CharNextExA only for doublebyte codepages.
	Implement for UTF-8 here.
	* strfuncs.cc (is_cp_multibyte): Move to miscfuncs.cc.
	* winsup.h (next_char): Declare.
	* include/limits.h (MB_LEN_MAX): Set to maximum value of MB_CUR_MAX
	as defined by newlib for now.
2008-02-06 18:24:50 +00:00
Corinna Vinschen 094f2e6fca * fhandler.h: Update copyright.
* include/limits.h: Ditto.
2008-01-07 16:51:54 +00:00
Christopher Faylor eaf70af08a * include/limits.h (TTY_NAME_MAX): Increase size to same as linux to allow for
(at least) null terminating byte for "/dev/console".
2008-01-06 18:31:35 +00:00
Corinna Vinschen 044b62c767 * path.cc (struct symlink_info): Change size of contents member to
be able to keep SYMLINK_MAX sized strings.
	(symlink_worker): Rework for long path names.  When writing windows
	shortcuts, store pathname additionally "hidden" after the actual
	shortcut data to workaround size limitations of the description field.
	(symlink_info::check_shortcut): Drop file name parameter.  Drop max
	file size check.  Use NT functions.  Use appended full path if
	available, description otherwise.  Check symlink string length for
	not exceeding SYMLINK_MAX.  Don't close file here.
	(symlink_info::check_sysfile): Drop file name parameter.  Use NT
	functions.  Check symlink string length for not exceeding SYMLINK_MAX.
	Don't close file here.
	(symlink_info::check_reparse_point): Drop file name parameter.  Drop
	useless length checks.  Allow SYMLINK_MAX length symlink strings.
	Don't close file here.
	(symlink_info::posixify): Allow SYMLINK_MAX length symlink strings.
	(symlink_info::check): Turn around checking for symlink file attributes.
	Use NT functions.  Close symlink file here.
	* include/limits.h (PATH_MAX): Define as 32760.  Change comment.
	(SYMLINK_MAX): Define as PATH_MAX - 1.
2007-10-10 16:54:09 +00:00
Corinna Vinschen 7b487ba942 * Makefile.in (DLL_OFILES): Add posix_ipc.o.
* cygwin.din (mq_close): Export.
	(mq_getattr): Export.
	(mq_notify): Export.
	(mq_open): Export.
	(mq_receive): Export.
	(mq_send): Export.
	(mq_setattr): Export.
	(mq_timedreceive): Export.
	(mq_timedsend): Export.
	(mq_unlink): Export.
	* posix_ipc.cc: New file implementing the above functions.  Move
	shm_open and shm_unlink from syscalls.cc here.
	* sysconf.cc (sca): Set value of _SC_MQ_OPEN_MAX to MQ_OPEN_MAX,
	_SC_MQ_PRIO_MAX to MQ_PRIO_MAX, _SC_MESSAGE_PASSING to
	_POSIX_MESSAGE_PASSING.
	* include/limits.h (MQ_OPEN_MAX): Define.
	(MQ_PRIO_MAX): Define.
	* include/mqueue.h: New file.
	* include/cygwin/version.h: Bump API minor number.
2007-02-14 10:06:46 +00:00
Corinna Vinschen 59e3b6ca7d * cygmalloc.h (MALLOC_FAILURE_ACTION): Define empty.
* cygwin.din (posix_madvise): Export.
	(posix_memalign): Export.
	* fhandler.cc (fhandler_base::fpathconf): Return useful values in
	_PC_VDISABLE, _PC_SYNC_IO and _PC_SYMLINK_MAX cases.
	* malloc_wrapper.cc (malloc): Set errno here since it's not set in
	dlmalloc.c anymore.
	(realloc): Ditto.
	(calloc): Ditto.
	(memalign): Ditto.
	(valloc): Ditto.
	(posix_memalign): New function.
	* mmap.cc (posix_madvise): New function.
	* sysconf.cc (get_open_max): New function.
	(get_page_size): Ditto.
	(get_nproc_values): Ditto.
	(get_avphys): Ditto.
	(sc_type): New type.
	(sca): New array to map _SC_xxx options to sysconf return values.
	(sysconf): Reimplement using sca array.
	* include/limits.h: Add all missing values as defined by SUSv3.
	* include/pthread.h (PTHREAD_DESTRUCTOR_ITERATIONS): Move definition
	to sys/limits.h.
	(PTHREAD_KEYS_MAX): Ditto.
	* include/semaphore.h (SEM_VALUE_MAX): Ditto.
	* include/cygwin/stdlib.h (posix_memalign): Declare.
	* include/cygwin/version.h: Bump API minor number.
	* include/sys/mman.h: Add posix_madvise flags.
	(posix_madvise): Declare.
	* include/sys/termios.h (_POSIX_VDISABLE): Move definition to
	sys/limits.h.
2007-02-07 17:22:40 +00:00
Corinna Vinschen 86bc8fadff * fhandler.cc (check_posix_perm): Moved here from syscalls.cc.
(fhandler_base::fpathconf): New method implementing (f)pathconf.
	* fhandler.h (class fhandler_base): Declare fpathconf method.
	* path.cc (path_conv::check): Replace MAX_LINK_DEPTH with SYMLOOP_MAX.
	* path.h (MAX_LINK_DEPTH): Delete.
	* syscalls.cc (check_posix_perm): Move to fhandler.cc.
	(fpathconf): Call fhandler's fpathconf method.
	(pathconf): Build fhandler and call fhandler's fpathconf method.
	* sysconf.cc (sysconf): Reorder switch according to order of flags
	in sys/unistd.h.  Add handling for some missing flags.
	* include/limits.h: Reorder according to SUSv3 description.  Add some
	missing definitions.  Add comments.
	* include/sys/syslimits.h: New file overriding newlib's syslimits.h
	file.
2006-11-07 17:59:54 +00:00
Corinna Vinschen f330e7b8e8 * include/limits.h (LLONG_MIN, LLONG_MAX, ULLONG_MAX): Always define. 2005-05-29 10:05:56 +00:00
Christopher Faylor 776b73dd33 * include/limits.h: Include features.h, as on linux. 2005-05-19 19:45:28 +00:00
Corinna Vinschen 232fee428a * include/limits.h (NAME_MAX): New define.
(PATH_MAX): POSIX allows PATH_MAX to include trailing NUL.
2005-03-29 17:46:17 +00:00
Corinna Vinschen 72c1491bba * cygwin.din: Export getpriority and setpriority.
* fork.cc (fork_parent): Copy parent's nice value into child.
	* spawn.cc (spawn_guts): Ditto.
	* miscfuncs.cc (winprio_to_nice): New function.
	(nice_to_winprio): Ditto.
	* pinfo.cc (pinfo_init): If parent is not a Cygwin process, set
	default nice value according to current Win32 priority class.
	* pinfo.h (class _pinfo): Add nice member.
	* syscalls.cc (setpriority): New function, only implementing
	PRIO_PROCESS for now.
	(getpriority): Ditto.
	(nice): Just call setpriority.
	* wincap.h (wincaps::has_extended_priority_class): New element.
	* wincap.cc: Implement above element throughout.
	* winsup.h: Add prototypes for winprio_to_nice and nice_to_winprio.
	* include/limits.h (NZERO): New define.
	* include/cygwin/types.h (id_t): New datatype.
	* include/cygwin/version.h: Bump API minor version.
	* include/sys/resource.h: Add PRIO_XXX defines and prototypes for
	getpriority and setpriority.
2005-01-25 22:45:11 +00:00
Corinna Vinschen 68509b303e * cygwin.din: Add symbols flockfile, ftrylockfile, funlockfile,
getgrgid_r, getgrnam_r and getlogin_r.
	* grp.cc (getgrgid_r): New function.
	(getgrnam_r): Ditto.
	* syscalls.cc (flockfile): Ditto.
	(ftrylockfile): Ditto.
	(funlockfile): Ditto.
	* sysconf.cc (sysconf): Return LOGIN_NAME_MAX in case of
	_SC_LOGIN_NAME_MAX.
	* thread.cc (__cygwin_lock_trylock): Define int.  Return value from
	call to pthread_mutex_trylock.
	* uinfo.cc (getlogin_r): New function.
	* include/limits.h: Define LOGIN_NAME_MAX.
	* include/cygwin/version.h: Bump API minor number.
	* include/sys/lock.h: Add declarations for __cygwin_lock_xxx functions.
	* include/sys/stdio.h: Add define for _ftrylockfile.
2004-05-17 16:06:02 +00:00
Corinna Vinschen f4ae6dc62c * autoload.cc (NtSetSecurityObject): Add.
* fhandler_disk_file.cc (fhandler_disk_file::fchmod): Only request
	READ_CONTROL rights when opening the file.
	* ntdll.h (NtSetSecurityObject): Add declaration.
	* security.cc (write_sd): Call NtSetSecurityObject instead of
	BackupWrite.
	(get_nt_object_security): Don't free security descriptor here.

	* syscalls.cc (ttyname): Use buffer of length TTY_NAME_MAX + 1.
	* sysconf.cc (sysconf): Handle _SC_TTY_NAME_MAX request.
	* include/limits.h: Define TTY_NAME_MAX and _POSIX_TTY_NAME_MAX.
2004-04-14 10:20:26 +00:00
Christopher Faylor ca713cfab3 * exceptions.cc (setup_handler): Signal event for any sigwaitinfo if it exists
to force signal to be handled.  Zero event here to prevent races.
* signal.cc (sigwaitinfo): Use local handle value for everything since signal
thread could zero event element at any time.  Detect when awaking due to thread
not in mask and set return value and errno accordingly.  Don't set signal
number to zero unless we've recognized the signal.
* sigproc.cc (sigq): Rename from sigqueue throughout.
* thread.cc (pthread::join): Handle signals received while waiting for thread
to terminate.
* cygwin.din: Export sighold, sigqueue.
* exceptions.cc (sighold): Define new function.
* signal.cc (handle_sigprocmask): Set correct errno for invalid signal.
Simplify debugging output.
(sigqueue): Define new function.
* include/cygwin/signal.h (sighold): Declare new function.
(sigqueue): Ditto.
* include/cygwin/version.h: Bump API minor version number.
* include/limits.h (TIMER_MAX): Define.
(_POSIX_TIMER_MAX): Ditto.
2004-02-26 05:10:49 +00:00
Christopher Faylor c571716c64 * Makefile.in (DLL_OFILES): Add strsig.o.
* cygtls.h (_local_storage::signamebuf) New element.
* sysconf.cc (sysconf): Implement _SC_RTSIG_MAX.
* tlsoffset.h: Regenerate.
* include/limits.h (_POSIX_RTSIG_MAX): New define.
(RTSIG_MAX): Ditto.
* include/cygwin/signal.h (SIGRTMIN): New define.
(SIGRTMAX): Ditto.
(NSIG): Bump.
* strsig.cc: New file.
2004-02-03 21:59:27 +00:00
Christopher Faylor 490d129f4a * include/limits.h: Revert unsanctioned changes below.
* include/cygwin/config.h: Ditto.
* include/sys/param.h: Ditto.
2003-11-15 17:04:10 +00:00
Robert Collins 95d02d5b9b 2003-11-11 Robert Collins <rbtcollins@hotmail.com>
Ron Parker <rdparker@butlermfg.com>

	* bsdlib.cc: Update throughout to use CYG_MAX_PATH rather than MAX_PATH.
	* cygheap.h: Ditto.
	* dcrt0.cc: Ditto.
	* delqueue.cc: Ditto.
	* dlfcn.cc: Ditto.
	* dll_init.cc: Ditto.
	* dll_init.h: Ditto.
	* dtable.cc: Ditto.
	* environ.cc: Ditto.
	* environ.h: Ditto.
	* exceptions.cc: Ditto.
	* external.cc: Ditto.
	* fhandler_disk_file.cc: Ditto.
	* fhandler_proc.cc: Ditto.
	* fhandler_process.cc: Ditto.
	* fhandler_raw.cc: Ditto.
	* fhandler_registry.cc: Ditto.
	* fhandler_socket.cc: Ditto.
	* fhandler_virtual.cc: Ditto.
	* miscfuncs.cc: Ditto.
	* mmap.cc: Ditto.
	* netdb.cc: Ditto.
	* path.cc: Ditto.
	* path.h: Ditto.
	* pinfo.cc: Ditto.
	* pinfo.h: Ditto.
	* pthread.cc: Ditto.
	* registry.cc: Ditto.
	* shared.cc: Ditto.
	* shared_info.h: Ditto.
	* smallprint.c: Ditto.
	* spawn.cc: Ditto.
	* strace.cc: Ditto.
	* syscalls.cc: Ditto.
	* thread.h: Ditto.
	* uinfo.cc: Ditto.
	* winsup.h: Ditto.
	* include/limits.h: Ditto.
	* include/cygwin/config.h: Ditto.
	* include/sys/param.h: Ditto.
2003-11-14 23:40:06 +00:00
Christopher Faylor ca81cd60ce * fhandler_console.cc (fhandler_console::read) Handle certain key up events, to
allow pasting accented characters and typing them using the "alt + numerics"
sequences.
* include/limits.h (IOV_MAX): Set to a number which is small enough to use in
an array.
2003-04-08 21:19:33 +00:00
Christopher Faylor a318eb217d * include/limits.h: Define LLONG_MIN, LLONG_MAX, ULLONG_MAX. 2001-12-17 01:41:07 +00:00
Christopher Faylor e3c25c4a47 Update copyrights. 2001-09-11 20:01:02 +00:00
Corinna Vinschen b0cce7e127 * include/limits.h: Define PIPE_BUF.
* syscalls.cc (fpathconf): Use PIPE_BUF instead of numerical constant.
        (pathconf): Ditto.
2001-09-07 08:31:16 +00:00
Corinna Vinschen 3171175e90 * resource.cc (getrlimit): Return OPEN_MAX as current limit
on RLIMIT_NOFILE.
        * syscalls.cc (getdtablesize): Return OPEN_MAX.
        * sysconf.cc (sysconf): Return OPEN_MAX on _SC_OPEN_MAX.
        * include/limits.h (OPEN_MAX): Define as 256.
2001-08-16 14:20:09 +00:00
Christopher Faylor 1fd5e000ac import winsup-2000-02-17 snapshot 2000-02-17 19:38:33 +00:00