Fix invalid memory read on libpath

Introduced in 3e33e1e86d15e262cd9e0224a9604e252f5d9284.

Closes GH-6362.

Check linker compatibility directly from HMODULE

Checking the linker compatibility with extranous `ImageLoad()` calls is
possible, but unnecessary, since the modules are either already l

Check linker compatibility directly from HMODULE

Checking the linker compatibility with extranous `ImageLoad()` calls is
possible, but unnecessary, since the modules are either already loaded
or loaded shortly afterwards, so that we can get the required
information directly from the module handles. And actually, doing
`ImageLoad()` as well as `LoadLibrary()` leaves a tiny room for a race
condition, because both functions will lookup the module in the search
path, so there is no *guarantee* that both are dealing with the same
module. Dropping the `ImageLoad()` calls also has the advantage to no
longer face the issue reported in bug #79557. A very minor additional
advantage is that we no longer have to link against Imagehlp.dll.

Furthermore, there is no need to check for CRT compatibility multiple
times, so we can simplify the signature of `php_win32_crt_compatible`,
and at the same time clean up main.c a bit.

These changes require to change the signature of the exported
`php_win32_image_compatible` and `php_win32_crt_compatible` functions,
which now expect a `HMODULE` and nothing, respectively, instead of the
module name.

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Remove proto comments from C files

Closes GH-5758

Constify char * arguments of APIs

Closes GH-5676.

Remove mention of PHP major version in Copyright headers

Closes GH-4732.

Fix signature and calls

Introduce zend_stream_init_fp() API

Reduce the amount of code that mucks around with zend_file_handle
initialization.

Put phpinfo() related code into cold code segment

Fix return

Implement stricter extension compatibility check

This hardens the dynamic module loading by checking the linker compatibility
between the core and the dynamic module. This likely should

Implement stricter extension compatibility check

This hardens the dynamic module loading by checking the linker compatibility
between the core and the dynamic module. This likely should be extended
for the CRT as well, as 2015, 2017 and 2019 versions of Visual Studio
all have same DLL name for the CRT.

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Remove local variables

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

Remove local variables

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.

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Remove yearly range from copyright notice

Remove year range from copyright notice

Replace zend_hash_apply... with ZEND_HASH_FOREACH...

Future-proof email addresses

Future-proof email addresses...

Fix localized error messages and memory leaks

The FormatMessage API needs to LocalFree the delivered error messages.
In cases where messages are delivered in non ASCII compatible encodin

Fix localized error messages and memory leaks

The FormatMessage API needs to LocalFree the delivered error messages.
In cases where messages are delivered in non ASCII compatible encoding,
the messages might be unreadable. This aligns the error message encoding
with the encoding settings in PHP, the focus is UTF-8 as default.

Initialize error buffer

Avoid code duplication

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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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Use zend_string_release_ex() instread of zend_string_release() in places, where we sure about string persistence.

main/php_ini.c: build empty php_load_zend_extension_cb() when !HAVE_LIBDL

Commit 0782a7fc6314c8bd3cbfd57f12d0479bf9cc8dc7 ("Fixed bug #74866
extension_dir = "./ext" now use current direc

main/php_ini.c: build empty php_load_zend_extension_cb() when !HAVE_LIBDL

Commit 0782a7fc6314c8bd3cbfd57f12d0479bf9cc8dc7 ("Fixed bug #74866
extension_dir = "./ext" now use current directory for base") modified
the php_load_zend_extension_cb() function to use php_load_shlib(), and
pass a handle to the newly introduced zend_load_extension_handle()
function instead of passing the extension path to
zend_load_extension().

While doing so, it introduced a call to php_load_shlib() from code
that is built even when HAVE_LIBDL is not defined. However,
php_load_shlib() is not implemented when HAVE_LIBDL is not defined,
for obvious reasons.

It turns out that zend_load_extension_handle() anyway doesn't do
anything when ZEND_EXTENSIONS_SUPPORT is defined to 0, and
ZEND_EXTENSIONS_SUPPORT is not defined when HAVE_LIBDL is not defined
(Zend/zend_portability.h).

Fixes the following build failure when building on a system that
doesn't have libdl:

main/php_ini.o: In function `php_load_zend_extension_cb':
php_ini.c:(.text+0x478): undefined reference to `php_load_shlib'
php_ini.c:(.text+0x4b0): undefined reference to `php_load_shlib'
collect2: error: ld returned 1 exit status

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

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year++

year++

year++

remove casts and ensure no out of bounds access

Fixed bug #74866 extension_dir = "./ext" now use current directory for base