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Commit a2bfe7cae61a introduced a change ignoring default ACEs on files
to come up with a valid POSIX ACL, reflecting the Windows ACEs actually
making sense on files.
However, if CREATOR OWNER or CREATOR GROUP ACEs - both only making sense
as default ACEs - are found in the ACL, a value indicating the presence
of default ACEs gets set, even on files. This in turn breaks a
subsequent integrity check and get_posix_access returns EINVAL.
The code path handling default ACEs on directories sets this indicator
anyway, so don't set it just because one of the above SIDs are found.
Fixes: a2bfe7cae61a ("Cygwin: ACLs: ignore *_INHERIT flags in file ACLs")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Unless make is invoked with V=1, have xmlto pass the parameter
'man.output.quietly=1' to xsltproc to suppress "Note: Writing foo.N"
output from the manpages stylesheet.
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Unless make is invoked with V=1, have xmlto pass the parameter
'chunk.quietly=1' to xsltproc to suppress "Writing foo.html for
sect1(foo)" output from the chunker.xsl stylesheet.
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Unless make is invoked with V=1, have xmlto pass '-q' to dblatex when
building PDFs, to supress repeated "default template used in
programlisting or screen" warnings from dblatex's verbatim.xsl
stylesheet.
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- When dn_comp() failed internally there is no longer any need to
fill the response header since it's now all cleared upon entry
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Report '--disable-doc' in 'configure --help', as enable is the default.
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Make sure Windows ResultSet is free'd when dn_comp failed internally
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RFC2782 clearly says so yet it's a common misconception to perform the
compression in the violation of the standard. This patch fixes that
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In case when the native OS resolver is used (via os_query) the returned
response ID is always 0. It should actually match the ID passed in to
res_send() in the DNS request header. This patch fixes that
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- Make sure the answer buffer is properly cleared so there is no trailing
garbage when the response does not fit entirely in;
- Make sure an internal decomp failure gets reported correctly (w/return code -1);
- Make sure that the buffer is not overrun when filling out the header.
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Also, make sure the debug setting propagates to the parser of
the remainder of /etc/resolv.conf
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- When open fails, archetype stored in archetypes[] is not cleared.
This causes double free when next open fail. This patch fixes the
issue.
Addresses:
https://cygwin.com/pipermail/cygwin/2022-January/250518.html
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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When trying to create a directory called `xyz` in the presence of a
directory `xyz.lnk`, the Cygwin runtime errors out with an `ENOENT`.
The root cause is actually a bit deeper: the `symlink_info::check()`
method tries to figure out whether the given path refers to a symbolic
link as emulated via `.lnk` files, but since it is a directory, that is
not the case, and that hypothesis is rejected.
However, the `fileattr` field is not cleared, so that a later
`.exists()` call on the instance mistakenly thinks that the symlink
actually exists. Let's clear that field.
This fixes https://github.com/msys2/msys2-runtime/issues/81
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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AAAA records returned from Windows resolver were flagged as "No
structure" in debug output because of being processed (although
correctly) in the default catch-all case. This patch makes the AAAA
records properly recognized.
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Also, change a few other debug output spots for consistency
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- If the from_master is closed before cleaning up other pipes, such
as from_slave_nat, the same pty may be allocated and pty master may
try to open the pipe which is not closed yet, and it will fail.
This patch fixes the issue.
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- Acquiring input_mutex and attach_mutex in console code has potential
risk of deadlock. This patch fixes the issue.
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- Closing attach_mutex and recreating it causes the race issue
between pty and console codes. With this patch, attach_mutex
is created only once in a process which opens pty, and never
closed in order to avoid this issue.
Addresses:
https://cygwin.com/pipermail/cygwin-developers/2021-December/012548.html
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- If master_fwd_thread is terminated by cygthread::terminate_thread(),
the opportunity to release tmp_pathbuf is missed, resulting in a
memory leak. This patch fixes the issue.
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- GDB inferior may be suspended while the inferior grabs mutex.
This causes deadlock in terminal I/O. With this patch, timeout
for waiting mutex is set to 0 for the debugger process when the
process calls CreateProcess() with DEBUG_PROCESS flag to avoid
deadlock. This may cause the race issue in GDB, however, there
is no other way than that.
Addresses:
https://cygwin.com/pipermail/cygwin-developers/2021-December/012542.html
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Drop mention of 32-bit installer, since it's offically discouraged, and
planned to be dropped soon.
Adjust various references to be something more generic, like 'the Cygwin
Setup program' to accommodate this.
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0x00000007:1 Intel Advanced Matrix eXtensions:
EAX:22 amx_bf16 Brain Float 16 dot product
EAX:24 amx_tile Tile matrix multiply
EAX:25 amx_int8 Int 8 byte dot product
0x80000008:0 AMD EBX:27 cppc Collaborative Processor Performance Control
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32 bit Cygwin still exports function calls to support old applications.
E. g., when switching from 16 to 32 bit uid/gid values, new function
like getuid32 have been added and the old getuid function still only
provides 16 bit values. Newly built applications using getuid are
actually calling getuid32.
However, this link magic isn't performed inside Cygwin itself, so if
newlib functions call getuid, they actually call the old getuid, not
the new getuid32. This leads to truncated uid/gid values.
https://cygwin.com/pipermail/cygwin/2022-January/250453.html reports
how this leads to problems in posix_spawn.
Fix this temporarily. i686 support will go away soon in Cygwin and the
fix can be dropped.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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We need deps to newlib's libc.a and libm.a, otherwise changes
in newlib code don't trigger a rebuild of the Cygwin DLL.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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get_posix_access() creates DEF_*_OBJ aclent_t entries from Windows ACEs
with INHERIT flags set, independent of the file type. These flags only
make sense on directory objects, but certain Windows functions don't
check the file type and allow INHERIT ACE flags even on non-directories.
As a fix, make sure to ignore the INHERIT flags on non-directory ACLs
and don't propagate the matching DEF_*_OBJ aclent_t entries to callers.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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NtQueryInformationProcess(ProcessHandleInformation) can return
STATUS_SUCCESS with invalid handle data for certain processes
("minimal" processes on Windows 10). This can cause a crash when
there's an attempt to access that data. Fix that by setting
NumberOfHandles to zero before calling NtQueryInformationProcess.
Addresses: https://cygwin.com/pipermail/cygwin-patches/2021q4/011611.html
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Add patch, and make cocom unconditional in list of build prerequisites.
Even though the products of these tools are checked in, these tools are
required when building in a fresh git checkout, presumably due to the
order in which git creates the files resulting in timestamps which
indicate that the output of rules using these tools are older than
the inputs.
Addresses: https://cygwin.com/pipermail/cygwin/2021-December/250124.html
Also drop a duplicate sentence about 'fetch sources from git'.
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Add a configure option '--disable-doc' to disable building of the
documentation by the 'all' target.
Check for the required tools at configure time, and require them if
building documentation is enabled.
Even if building the documentation was diabled with '--disable-doc',
'make -C doc' at the top-level can still make the documentation, if the
documentation tools were found. If the tools were not found, 'missing'
is used to issue a warning about that.
Update instructions for building Cygwin appropriately.
(Building documentation remains the default to increase the chances of
noticing when building the documentation is broken.)
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- This patch fixes the failure of input switching between io_handle
and io_handle_nat. This very rarely happens, however, input is
wrongly switched to io_handle_nat even though the non-cygwin app
is in the background.
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- The recent commit "Cygwin: pty: Add missing input transfer when
switch_to_pcon_in state." causes regression that rlwrap cannot
work with cmd.exe. This patch fixes the issue.
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Use AS_HELP_STRING in AC_ARG_WITH for --enable-debugging to ensure
correct formatting in 'configure --help' output.
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- The recent commit: "Cygwin: pty: Fix Ctrl-C handling for non-cygwin
apps in background." causes the problem that cmd.exe is terminated
by Ctrl-C even if it is running in pseudo console. This patch fixes
the issue.
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- Set blocking mode properly at startup of cygwin process. This is
needed if the cygwin process is executed from non-cygwin process.
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Remove references to STATUS_THREAD_SIGNALED and
STATUS_THREAD_CANCELED, which can't occur any more.
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- With this patch, FILE_SYNCHRONOUS_IO_NONALERT flag is applied to
the read pipe so that native C# programs work with cygwin pipe.
To handle signals in reading pipe with this flag set, the read
pipe itself is always set to nonblocking mode and simulates the
blocking behaviour in raw_read().
- Default to byte mode rather than message mode in order to make
C# programs work with cygwin pipe.
Addresses: https://cygwin.com/pipermail/cygwin/2021-March/247987.html
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- If the non-cygwin app is started in the background in console, the
console mode is broken for the app. This patch fixes the issue.
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- If the non-cygwin app is started in the background in pseudo
console, the console mode is broken for the app. This patch fixes
the issue.
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- With pseudo console enabled, if the non-cygwin app is started in
the background and put it into the foreground, the process cannot
be stopped by Ctrl-C. This patch fixes the issue.
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- This patch fixes the bug that input is wrongly sent to io_handle_nat
rather than io_handle when neither read() nor select() is called
after the cygwin app is started from non-cygwin app. This happens
only if psuedo console is disabled.
Addresses:
https://cygwin.com/pipermail/cygwin-patches/2021q4/011587.html
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