The `<loccale.h>` header file, setlocale, and localeconv are part of the
standard C89 [1] and on current systems can be used unconditionally.
Since PHP 7.4 requires at least C89 or greater, the `HAVE_LOCALE_H`,
`HAVE_SETLOCALE`, and `HAVE_LOCALECONV` symbols defined by Autoconf in
configure.ac [2] can be ommitted and simplifed.
The bundled libmagic (file) has also been patched already in version
5.35 and up in upstream location so when it will be patched also in
php-src the check for locale.h header is still left in the configure.ac
and in windows headers definition file.
[1] https://port70.net/~nsz/c/c89/c89-draft.html#4.4
[2] https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/headers.m4
Omit the bundled libmagic files
The `<signal.h>` header file is part of the standard C89 headers [1] and
on current systems can be included unconditionally.
Since file requires at least C89 or greater, the `HAVE_SIGNAL_H` symbol
defined by Autoconf in Zend.m4 [2] can be ommitted and simplifed.
The bundled libmagic (file) also ommits the usage of HAVE_SIGNAL_H since
5.35 however current version in PHP is very modified 5.34 version and
will be refactored separately. Check for HAVE_SIGNAL_H is therefore
still done in the configure.ac.
Refs:
[1] https://port70.net/~nsz/c/c89/c89-draft.html#4.1.2
[2] https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/headers.m4
This patch follows previous license year ranges updates. With new
approach source code files now have simplified headers with license
information without year ranges.
This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly used by Vim and Emacs editors
yet with recent changes the once working definitions don't work
anymore in Vim without custom plugins or additional configuration.
Neither are these settings synced across the PHP code base.
A simpler and better approach is EditorConfig and fixing code
using some code style fixing tools in the future instead.
This patch also removes the so called modelines for Vim. Modelines
allow Vim editor specifically to set some editor configuration such as
syntax highlighting, indentation style and tab width to be set in the
first line or the last 5 lines per file basis. Since the php test
files have syntax highlighting already set in most editors properly and
EditorConfig takes care of the indentation settings, this patch removes
these as well for the Vim 6.0 and newer versions.
With the removal of local variables for certain editors such as
Emacs and Vim, the footer is also probably not needed anymore when
creating extensions using ext_skel.php script.
Additionally, Vim modelines for setting php syntax and some editor
settings has been removed from some *.phpt files. All these are
mostly not relevant for phpt files neither work properly in the
middle of the file.
The binary can be of course used on console, for whatever reasons, so
UNICODE API should be used in that case. That might however not work as
expected, if the binary is used for a service.
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.
This warning was about a possible loss of data due to the downcast of `php_socket_t` to `int`. The former maps to a platform specific type, hence, it might downcast from a 64 bit integer to a 32 bit intger.
Fixed possibly overflowing vars
Due to the change from `int` to `php_socket_t` some variables might overflow now. Changed all variables that might be affected.
Revert "Fixed possibly overflowing vars"
This reverts commit bf64fd5984.
Use aliased PHP socket type
Using the alias protects us from changes to the underlying type.
Removed ignored nfds argument
The `nfds` argument to the Win32 `select` function is always ignored, regardless of its actual value. Hence, we should not pass it in the first place. See https://msdn.microsoft.com/en-us/library/windows/desktop/ms740141(v=vs.85).aspx for reference.
Target value is not a pointer
Avoid overflow in loop
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.
Fix function names prefix
Use Unicode version of GetFinalPathNameByHandle
Use EG(windows_version_info) instead of RtlGetVersion
Use the specified handle_id instead of STD_OUTPUT_HANDLE
Switch from stream name to stream resource
Allow running tests capturing only stdout and/or stderr
Add tests for stream_vt100_support function
Export Win32 console functions
Fix x64 build
Use zend_long instead of long long, use GetConsole instead of GetFinalPathNameByHandleW to check if a handle is a valid console stream
Always use zend_long on any platform
Use _get_osfhandle to determine the standard handle
Accept stream names
Raise warnings in case of invalid stream parameter
Return true if disabling VT100 support on a not-console/redirected stream or on old Windows versions
Remove php_win32_console_os_supports_vt100
Differentiate stdin vs stdout/stderr
Simplify setting flag
Allow avoid piping STDIN
Let stream_vt100_support accept only resources
Fix run-tests
Revert console flags in case of failure
Simplify logic of stream_vt100_support when setting the flag
Return true if succeeded, false otherwise
Drop support for STDIN
More comprehensive tests for stream_vt100_support
Remove old tests
Fix name of included file and use absolute paths
Enable ENABLE_VIRTUAL_TERMINAL_PROCESSING on Windows by default
Remove tests for stream_vt100_support
Split stream_vt100_support into stream_isatty+sapi_windows_vt100_support
Add tests for stream_isatty
Add tests for sapi_windows_vt100_support
Return null from stream_isatty is neither Windows nor Posix
Fallback to S_ISCHR if neither Windows nor Posix
Avoid defining argc since it's only used once
Better comment about php_win32_console_fileno_is_console
Use events instead of cNumberOfEvents
Do not restore previous console mode
We need to restore previous console mode on failing SetConsole calls only for STDIN
Don't configure STDOUT/STDERR on Windows with PHP_CLI_WIN32_NO_CONSOLE
Since long the default PHP charset is UTF-8, however the Windows part is
out of step with this important point. The current implementation in PHP
doesn't technically permit to handle UTF-8 filepath and several other
things. Till now, only the ANSI compatible APIs are being used. Here is more
about it
dd317752%28v=vs.85%29.aspx
The patch fixes not only issues with multibyte filenames under
incompatible codepages, but indirectly also issues with some other multibyte
encodings like BIG5, Shift-JIS, etc. by providing a clean way to access
filenames in UTF-8. Below is a small list of issues from the bug tracker,
that are getting fixed:
https://bugs.php.net/63401https://bugs.php.net/41199https://bugs.php.net/50203https://bugs.php.net/71509https://bugs.php.net/64699https://bugs.php.net/64506https://bugs.php.net/30195https://bugs.php.net/65358https://bugs.php.net/61315https://bugs.php.net/70943https://bugs.php.net/70903https://bugs.php.net/63593https://bugs.php.net/54977https://bugs.php.net/54028https://bugs.php.net/43148https://bugs.php.net/30730https://bugs.php.net/33350https://bugs.php.net/35300https://bugs.php.net/46990https://bugs.php.net/61309https://bugs.php.net/69333https://bugs.php.net/45517https://bugs.php.net/70551https://bugs.php.net/50197https://bugs.php.net/72200https://bugs.php.net/37672
Yet more related tickets can for sure be found - on bugs.php.net, Stackoverflow
and Github. Some of the bugs are pretty recent, some descend to early
2000th, but the user comments in there last even till today. Just for example,
bug #30195 was opened in 2004, the latest comment in there was made in 2014. It
is certain, that these bugs descend not only to pure PHP use cases, but get also
redirected from the popular PHP based projects. Given the modern systems (and
those supported by PHP) are always based on NTFS, there is no excuse to keep
these issues unresolved.
The internalization approach on Windows is in many ways different from
UNIX and Linux, while it supports and is based on Unicode. It depends on the
current system code page, APIs used and exact kind how the binary was compiled
The locale doesn't affect the way Unicode or ANSI API work. PHP in particular
is being compiled without _UNICODE defined and this is conditioned by the
way we handle strings. Here is more about it
https://msdn.microsoft.com/en-us/library/tsbaswba.aspx
However, with any system code page ANSI functions automatically convert
paths to UTF-16. Paths in some encodings incompatible with the
current system code page, won't work correctly with ANSI APIs. PHP
till now only uses the ANSI Windows APIs.
For example, on a system with the current code page 1252, the paths
in cp1252 are supported and transparently converted to UTF-16 by the
ANSI functions. Once one wants to handle a filepath encoded with cp932 on
that particular system, an ANSI or a POSIX compatible function used in
PHP will produce an erroneous result. When trying to convert that cp932 path
to UTF-8 and passing to the ANSI functions, an ANSI function would
likely interpret the UTF-8 string as some string in the current code page and
create a filepath that represents every single byte of the UTF-8 string.
These behaviors are not only broken but also disregard the documented
INI settings.
This patch solves the issies with the multibyte paths on Windows by
intelligently enforcing the usage of the Unicode aware APIs. For
functions expect Unicode (fe CreateFileW, FindFirstFileW, etc.), arguments
will be converted to UTF-16 wide chars. For functions returning Unicode
aware data (fe GetCurrentDirectoryW, etc.), resulting wide string is
converted back to char's depending on the current PHP charset settings,
either to the current ANSI codepage (this is the behavior prior to this patch)
or to UTF-8 (the default behavior).
In a particular case, users might have to explicitly set
internal_encoding or default_charset, if filenames in ANSI codepage are
necessary. Current tests show no regressions and witness that this will be an
exotic case, the current default UTF-8 encoding is compatible with any
supported system. The dependency libraries are long switching to Unicode APIs,
so some tests were also added for extensions not directly related to streams.
At large, the patch brings over 150 related tests into the core. Those target
and was run on various environments with European, Asian, etc. codepages.
General PHP frameworks was tested and showed no regressions.
The impact on the current C code base is low, the most places affected
are the Windows only places in the three files tsrm_win32.c, zend_virtual_cwd.c
and plain_wrapper.c. The actual implementation of the most of the wide
char supporting functionality is in win32/ioutil.* and win32/codepage.*,
several low level functionsare extended in place to avoid reimplementation for
now. No performance impact was sighted. As previously mentioned, the ANSI APIs
used prior the patch perform Unicode conversions internally. Using the
Unicode APIs directly while doing custom conversions just retains the status
quo. The ways to optimize it are open (fe. by implementing caching for the
strings converted to wide variants).
The long path implementation is user transparent. If a path exceeds the
length of _MAX_PATH, it'll be automatically prefixed with \\?\. The MAXPATHLEN
is set to 2048 bytes.
Appreciation to Pierre Joye, Matt Ficken, @algo13 and others for tips, ideas
and testing.
Thanks.
