Fix #79566: Private SHM is not private on Windows

We map the POSIX semantics of `IPC_PRIVATE` by creating unnamed file
mapping objects on Windows. While that is not particularly useful

Fix #79566: Private SHM is not private on Windows

We map the POSIX semantics of `IPC_PRIVATE` by creating unnamed file
mapping objects on Windows. While that is not particularly useful for
ext/shmop, which is the only bundled extension which uses `shmget()`,
it may be useful for external extensions.

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Fix #78538: shmop memory leak

If the descriptor's refcount drops to zero, we have to unmap the
respective file view, to avoid leaking memory.

Fix #78282: atime and mtime mismatch

The fix for bug #78241 assumed that `time_t` would always be 64bit, but
actually is 32bit for x86. We therefore enforce 64bit arithmetic to
avoi

Fix #78282: atime and mtime mismatch

The fix for bug #78241 assumed that `time_t` would always be 64bit, but
actually is 32bit for x86. We therefore enforce 64bit arithmetic to
avoid wrapping.

(cherry picked from commit bf242d58e77d50d4d8fdaaaca7ede686ec4467c0)

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Fix #78241: touch() does not handle dates after 2038 in PHP 64-bit

`time_t` defaults to `_time64` (which is 64bit signed) even on x86, but
`Int32x32To64()` truncates it to signed 32bit.

Fix #78241: touch() does not handle dates after 2038 in PHP 64-bit

`time_t` defaults to `_time64` (which is 64bit signed) even on x86, but
`Int32x32To64()` truncates it to signed 32bit. We replace the macro
with the "manual" calculation.

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Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

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year++

year++

year++

Modernize realpath and integrate quick variant into virtual_file_ex

The slower I/O as a traditional bottleneck on Windows which is
the target of this patch. The recursive path resolution

Modernize realpath and integrate quick variant into virtual_file_ex

The slower I/O as a traditional bottleneck on Windows which is
the target of this patch. The recursive path resolution, while being
an allround solution, is expensive when it comes to the common case.
Files with proper ACLs set can be resolved in one go by usage of specific
API. Those are available since Vista, so actually can be called old. Those
simpler api is used for the cases where no CWD_EXPAND is requested. For
the cases where ACLs are improper, the existing solution based on
FindFirstFile still does good job also partially providing quirks. Cases
involing reparse tags and other non local filesystems are also partially
server by new APIs.

The approach uses both APIs - the quick one for the common case still
integrating realpath cache, and the existing one as a fallback. The tests
show the I/O load drop on the realpath resolution part due to less
system calls for the sub part resolution of paths. In most case it is
justified, as the sub parts were otherwise cached or unused as well. The
realpath() implementation in ioutil is also closer to the POSIX.

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Move temporary allocation to the stack

Improve ioutil access impl and refactor tsrm_win32_access

vim folds and mode lines yet

use char* as we don't compile with UNICODE anyway

Avoid unnecessary string copy

which is the case when there's no impersonation.

get rid of two strlen calls

fix error handling

Update copyright headers to 2017

Update copyright headers to 2017

Update copyright headers to 2017

Path handling related refactorings

Primarily related to the path handling datatypes, to avoid unnecessary
casts, where possible. Also some rework to avoid code dup. Probably
more pla

Path handling related refactorings

Primarily related to the path handling datatypes, to avoid unnecessary
casts, where possible. Also some rework to avoid code dup. Probably
more places are to go, even not path related, primarily to have less
casts and unsigned integers where possible. That way, we've not only
less warnings and casts, but are also safer with regard to the
integer overflows. OFC it's not a panacea, but still significantly
reduces the vulnerability potential.

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fix HANDLE leak

backport relevant part from bug #72858 patch in 7.0

sync shm* implementation signatures with POSIX

avoid other efforts if memory mapping fails

map ell the err code