Thema: Cygwin

[SiLæncer]

Changelog

select(2) now supports timeouts less than a Windows tick (10-16 ms).
Bug Fixes
Fix an error message depending on the system header inclusion order.
Fix non-POSIXy scheduler priority handling.
Allow mmap to map regions > 4 Gigs on 64 bit.
Fix realpath(3) for incoming paths starting with long path prefixes.
Fix a usage of INT_MAX (required limits.h) in math.h
Fix using wrong inode number on newly created files.

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

Support for POSIX-1.2008 locale objects and per-thread locales.
New API per POSIX-1.2008: newlocale, freelocale, duplocale, uselocale,
nl_langinfo_l, isalnum_l, isalpha_l, isblank_l, iscntrl_l, isdigit_l,
isgraph_l, islower_l, isprint_l, ispunct_l, isspace_l, isupper_l, iswalnum_l,
iswalpha_l, iswblank_l, iswcntrl_l, iswctype_l, iswdigit_l, iswgraph_l,
iswlower_l, iswprint_l, iswpunct_l, iswspace_l, iswupper_l, iswxdigit_l,
isxdigit_l, tolower_l, toupper_l, towctrans_l, towlower_l, towupper_l,
wctrans_l, wctype_l, strcasecmp_l, strcoll_l, strerror_l, strfmon_l,
strftime_l, strncasecmp_l, strxfrm_l, wcscasecmp_l, wcscoll_l,
wcstrncasecmp_l, wcstrxfrm_l.
New API, GNU extensions: isascii_l, toascii_l, strptime_l, strtod_l,
strtof_l, strtol_l, strtold_l, strtoll_l, strtoul_l, strtoull_l, wcsftime_l,
wcstod_l, wcstof_l, wcstol_l, wcstold_l, wcstoll_l, wcstoul_l, wcstoull_l.
locale(1) now supports a -i/--input option to fetch the current input
locale (this is basically equivalent to the current keyboard layout setting).
New API: pthread_getname_np, pthread_setname_np.

CHANGED:

Drop support for Windows XP and Windows Server 2003/2003 R2.
Drop support for very old SUNWNFS filesystem.
Further header file improvements in terms of feature test macros.
Raise number of supported partitions per disk (for raw access) to 63.
Add a workaround for filesystems not supporting the FileAllInformation
info class.
Support AzureAD accounts.
"nobody" account support for WinFSP.

BUG FIXES:

Try to avoid spurious DENY ACEs when creating files in directories
with non-POSIX-like (rather: Windows-like) permissions.
Make sure ldd(1) does not exit prematurely when enumerating DLLs.
Fix strace timer output in child process.
Change blkcnt_t to signed type per POSIX.
Fix definition of SSIZE_MAX on 32-bit systems.
Fix transposing invalid chars in Windows filenames on relative paths.
Don't raise SIGTTIN from select(2)/poll(2).
Use correct FPU rounding mode in truncl.
Fix a regression in ioctl(fd, FIONREAD, ...) introduced in Cygwin 2.5.0.
This only affects 64 bit Cygwin.
Handle "clear screen" escpae sequence in console window more reliable.
Allow kill(pid, ) on zombies to return successfully, rather than
only kill(pid, 0), to align behaviour with POSIX requirements.
Fix off_t typedef on 64-bit.
Fix weird problem running passwd on newer Windows versions.

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

NEW:

Add _PC_CASE_INSENSITIVE flag to [f]pathconf(3).

BUG FIXES:

Fix regression in console charset handling
Fix case-sensitivity problem when renaming directories
Fix SetThreadName with gdb 7.10 on x86
Fix broken newlocale handling with empty local string "".
Fix assorted buffer overflows and resource leaks found by Coverity.
Correctly define __hidden macro on Cygwin.
Fix page count in /proc//statm and /proc//status.
Don't allow sending invalid signals from user space
Fix path handling of ".//" sequences.
cygwin_conv_path/cygwin_create_path now also check for .exe suffix when converting a POSIX path to Windows notation.
Address Windows bug in path conversion on network shares for non-existing paths.

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

BUG FIXES:

Fix rename(2) fail with EACCES if newfile is in use.
Always try to write all incoming bytes to blocking pipes, as required
by POSIX.
Fix handling of Alt-Numpad sequences in console handler.
Fix erasing UTF-8 multibyte characters in cooked mode.
Fix handling of a literal '+' by cygcheck -p
Fix limited Internet speeds caused by inappropriate socket buffering.

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

What's new:

New API: timingsafe_bcmp, timingsafe_memcmp
New API: dladdr
New API: getloadavg

What changed:

cygcheck and strace now always generate output with Unix LF line endings, rather than with DOS/Windows CR LF line endings.
fork now preserves the load order of unrelated dlopen'd modules.
pthread_cond_wait now acts like Linux and BSD: Resume waiting for the condition variable as if it was not interrupted, rather than returning 0.
The internal <sys/_locale.h> header was renamed to <xlocale.h> for source compatibility with other systems.
Try harder supporting Netapp drives.

Bug Fixes:

Fix a few problems which are the combined culprit of fork failing when called recursively from a pthread.
Fix potential buffer overflow in getrandom.
Fix write(2) return value for writes > 2 GB.
Workaround Windows NUL having the same problem for writes > 4 GB.
Fix a potential crash in duplocale.
Fix dlopen/dlclose reference counting to make sure FreeLibrary isn't called too early in forked process.
Fix concurrency problems in cygserver.

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

What changed:
The XSI form of sigpause, which removes the given signal from the process's signal mask, is made available when compiling with _XOPEN_SOURCE or _GNU_SOURCE.
Bug Fixes:
Fix build problem with GCC 6.
Fix stat.st_blocks for files compressed with CompactOS method.
Fix extreme lagging during strace in certain scenarios.
Fix unwanted decimal point localization in /proc/loadavg
Fix ldd potentially looping on non-continuable exception
Fix buffer overflow problem in wcsxfrm/wcsxfrm_l.
Fix crash if env var name starts with non-ASCII char
Fix return value of lrint{f,l} on x86_64 Cygwin.
Fix native language support in regtool(1).

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

What's new:

New API: fls, flsl, flsll.

Bug Fixes:

Fix scandirat. Addresses: https://cygwin.com/ml/cygwin/2017-07/msg00045.html
Fix signal.h with strict features enabled. Addresses: https://cygwin.com/ml/cygwin/2017-07/msg00051.html and https://cygwin.com/ml/cygwin/2017-07/msg00088.html
Drop _in and _out in POSIX headers to avoid collision with Windows headers. Addresses: https://github.com/Alexpux/MSYS2-packages/issues/934
Handle different environments in cygwin-doc postinstall script. Addresses: https://cygwin.com/ml/cygwin/2017-07/msg00070.html

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

NEW:

New APIs: explicit_bzero, strnstr.
New APIs: pthread_mutex_timedwait, pthread_rwlock_timedrdlock, pthread_rwlock_timedwrlock.
New API: renameat2.

CHANGED:

Improved implementation of <elf.h>.
Add %s support for strptime..

BUG FIXES:

Fix a regression in fflush introduced in 2.8.0.
Fix a regression in reparse point handling introduced in 2.8.1.
Fix a potential resource leak when checking reparse points during readdir.
Fix select and read in Windows console when running under codepage 65001.
Fix a clear screen issue in Windows console when running under codepage 65001.
Fix bug in strptime %F field width handling.

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

NEW:

New open(2) flags O_TMPFILE and O_NOATIME.
scanf/wscanf now handle the POSIX %m modifier.
scanf now handles the %l[ conversion.
Improved hostprogs compatibility for cross-compiling the Linux kernel.
New headers: <asm/bitsperlong.h>, <asm/posix_types.h>.
Built-in implementation of Stack Smashing Protection compiler feature.
New APIs: __stack_chk_fail, __stack_chk_guard.
Built-in implementation of POSIX.1-2001 message catalog support.
New APIs: catclose, catgets, catopen. New tool: gencat.
New APIs: sigtimedwait, wmempcpy.

What changed:

Standard headers no longer use macros to support K&R C.
confstr(3) and getconf(1) accept LFS_CFLAGS, LFS_LDFLAGS, etc.
The __always_inline and __nonnull macros in <sys/cdefs.h> are now compatible with glibc.
Feature Test Macros improvements in <fcntl.h>, <limits.h>, <netdb.h>, <strings.h>, and <unistd.h>.

Bug Fixes:

Fix a problem in unlink on NFS.
Addresses: Shows up in GAWK testsuite test "testext"
Fix errno setting bug in posix_fadvise and posix_fallocate.
Fix two bugs in the limit of large numbers of sockets.
Fix a fork failure with private anonymous mmaps.
Remove a call to fflush from ftell{o}, which may result in wrong offsets.
Fix file pointer computation after short writes on block devices.

[close]

http://www.cygwin.com/

[SiLæncer]

Changelog

What's new:

New APIs: clearenv, pthread_tryjoin_np, pthread_timedjoin_np, sched_getcpu.
New APIs: aio_cancel, aio_error, aio_fsync, aio_read, aio_return, aio_suspend, aio_write, lio_listio.
New header: <aio.h>.

What changed:

SO_RCVTIMEO and SO_SNDTIMEO socket options are now honored.
/proc/cpuinfo now reports L3 cache size on Intel CPUs.
Drop denormal-operand exception from FE_ALL_EXCEPT, as on Linux.
Rename the --file option of setfacl(1) to --set-file, as on Linux.
Support Unicode 10.
Following glibc, `union wait' has now been removed. Applications using union wait and these macros will have to migrate to the POSIX-specified int status type.

Bug Fixes:

Fix utils path handling in case cygdrive path is just '/'.
Fix a potential SIGFPE in strtod, if FE_INVALID exceptions are enabled.
Fix a CPU affinity problem when creating /proc/cpuinfo output.
Fix a buffer underrun problem in Win32 path normalization.
Fix a stack alignment problem which may lead to spurious crashes after fork.
Fix a g++ compilation problem with -std=c++14 or -std=c++17.
Fix FPE flag handling for division by zero conditions
Fix Unicode table.
Handle a non-standard return value from some tape drives to report a "no-media" error.
Fix duration handling in sigtimedwait
Make FP environment symbols available on x86_64.
Fix fegetenv behaviour.
Fix NaN handling in strtof/strtod/strtold.
Fix memory allocation values in /proc/<PID>/status and /proc/<PID>/statm.
Fix handling of unknown accounts in file ACLs. Add name->SID conversion for (most) self-constructed account names.
Correctly handle Logon Session accounts on Windows 10.

[close]

www.cygwin.com

[SiLæncer]

Changelog

Bug Fixes
---------

- Return ESPIPE rather than EINVAL from lseek on a fifo.
  Addresses: https://cygwin.com/ml/cygwin/2018-10/msg00019.html

- Fix a memory corruption when using pipes or FIFOs
  Addresses: https://cygwin.com/ml/cygwin-patches/2018-q4/msg00000.html

- Fix potential memory corruption and SEGV if socket(2), socketpair(2),
  accept(2), or accept4(2) fail.
  Addresses: https://cygwin.com/ml/cygwin/2018-10/msg00229.html

- Fix socket(2) and socketpair(2) calls mishandling SOCK_NONBLOCK and
  SOCK_CLOEXEC flags.
  Addresses: https://cygwin.com/ml/cygwin/2018-11/msg00017.html

[close]

www.cygwin.com

[SiLæncer]

Changelog

-----------
- Support for CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_COARSE,
CLOCK_MONOTONIC_RAW, CLOCK_BOOTTIME, CLOCK_REALTIME_ALARM,
CLOCK_BOOTTIME_ALARM clocks.
- Support for case sensitive directories. mkdir(2) automatically
creates directories within the Cygwin installation dir as case
sensitive now.
This feature requires Windows 10 1803 or later and WSL installed!
- New file ioctls's FS_IOC_GETFLAGS and FS_IOC_SETFLAGS. The actual
inode flags are Cygwin-specific. This allows to set or reset
DOS attributes, file sparseness, FS level encryption and compression,
as well as directory case sensitivity programatically.
- New tools chattr(1) and lsattr(1) to utilize setting and viewing the
aforementioned new ioctl's on the command line.
- Support for exFAT.
- Support Linux-specific open(2) flag O_PATH.
- Support Linux-specific linkat(2) flag AT_EMPTY_PATH.
- Support overrun counter for posix timers (via timer_getoverrun() or
siginfo_t::si_overrun).
- New APIs: signalfd, timerfd_create, timerfd_gettime, timerfd_settime,
timer_getoverrun.
- fork(2) now is able to recover from when an in-use executable/dll is
removed or replaced during process runtime. This feature is disabled by
default and limited to exes/dlls on the same NTFS partition as the Cygwin
installation. For more information and how to enable, please refer to
https://www.cygwin.com/cygwin-ug-net/highlights.html#ov-hi-process

What changed:

-------------
- clock_nanosleep, pthread_condattr_setclock and timer_create now support
all clocks, except CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID.
- clock_setres is a no-op now.
- Use the new POSIX unlink semantics on NTFS starting with Windows 10 1709.
Deleting an in-use file now actually removes the file, rather than moving
it to the recycler bin.
- Use the new POSIX rename semantics on NTFS starting with Windows 10 1809.
Renaming a file to another in-use file now actually removes the other file,
rather than moving it to the recycler bin.
- open(..., O_TMPFILE) now moves the file to the trash bin immediately,
to free the parent directory.
- Wctype functions updated to Unicode 11.0.
- Remove matherr, and SVID and X/Open math library configurations.
Default math library configuration is now IEEE.
- Improve uname(2) for newly built applications.
- Kerberos/MSV1_0 S4U authentication replaces two old methods:
Creating a token from scratch and Cygwin LSA authentication package.
- Cygwin PIDs have been decoupled from Windows PID. Cygwin PIDs are
now incrementally dealt in the range from 2 up to 65535, POSIX-like.
Native Windows processes not started by Cygwin processes are mapped
into the range beyond 65535.

Bug Fixes

---------
- Fix a thread race when initializing CLOCK_MONOTONIC.
Addresses: https://cygwin.com/ml/cygwin/2018-11/msg00017.html
- Fix early timeout from pthread_cond_timedwait.
Addresses: https://cygwin.com/ml/cygwin/2018-11/msg00171.html
- Fix a bug in recognizing remote FAT/FAT32/exFAT correctly.
- Allow open(2)/stat(2)/linkat(2) of a file via /proc/PID/fd/DESCRIPTOR
even if file has been deleted.
Addresses: https://cygwin.com/ml/cygwin/2018-12/msg00125.html
https://cygwin.com/ml/cygwin/2018-12/msg00028.html
- Fix a bug in select(2) when polling HANDLE-less descriptors.
- Fix WEOF handling in wctype functions.
Addresses: https://cygwin.com/ml/cygwin/2018-12/msg00173.html
- Fix thread names in GDB when cygthreads get reused.
- Fix return value of gethostname in a border case.
- Disallow seteuid on disabled or locked out accounts.
Addresses: https://cygwin.com/ml/cygwin/2019-01/msg00197.html
- Fix raise to work as required by POSIX.
Addresses: https://cygwin.com/ml/cygwin/2019-01/msg00149.html
- Fix exception handling in pthreads.
Addresses: https://cygwin.com/ml/cygwin/2019-01/msg00149.html
- Fix O_APPEND handling on files when calling non-Cygwin applications
Addresses: https://cygwin.com/ml/cygwin/2019-02/msg00081.html
- Fix case correctness of passwd/group entries fetched via getpwnam
or getgrnam.
Addresses: https://cygwin.com/ml/cygwin/2019-02/msg00109.html

[close]

www.cygwin.com

[SiLæncer]

Changelog

What's new:

New API: secure_getenv.

Bug Fixes:

Relax fork child permissions to avoid a potential fork failure.
Fix Command-line argument handling of kill(1) in terms of negative PID. Addresses: report on IRC
Fix an accidentally introduced O_TEXT handling of pipes inherited from native Windows processes.
Re-enable creating user token from scratch in seteuid to allow user context switch on old systems not supporting MsV1_0S4ULogon.

[close]

www.cygwin.com

[SiLæncer]

Changelog

Bug Fixes
---------

- Fix a resource leak in posix timers.
  Addresses: https://cygwin.com/ml/cygwin/2019-03/msg00120.html

- Fix a deadlock in posix timers
  Addresses: https://cygwin.com/ml/cygwin/2019-03/msg00158.html

[close]

www.cygwin.com

[SiLæncer]

Changelog

What changed:

Improve /proc/<PID>/cmdline and /proc/<PID>/stat handling to allow all processes access to basic process information of foreign processes.

Bug Fixes:

Fix access to process list
Addresses: https://cygwin.com/ml/cygwin/2019-03/msg00253.html
Fix acl_to_text/acl_to_any_text returning EINVAL on empty acl
Addresses: https://cygwin.com/ml/cygwin/2019-03/msg00157.html

[close]

www.cygwin.com