Use return value of getpwuid_r(), not errno (#13969)

ext/posix: changing helpers return to zend_result. (#13957)

Fix usage of reentrant functions in ext/posix (#13921)

- It's not necessarily an error of sysconf(_SC_GETPW_R_SIZE_MAX) returns -1, as
specified by posix (and the musl implementation a

Fix usage of reentrant functions in ext/posix (#13921)

- It's not necessarily an error of sysconf(_SC_GETPW_R_SIZE_MAX) returns -1, as
specified by posix (and the musl implementation always returns -1). Pick an
initial buffer size in this case.
- Reentrant variants return an error number an may not set errno
- Implement retry logic for ttyname_r()
- Fix retry logic for getpwnam_r() (pw would be NULL after the first try)
- Test retry logic by setting the initial buffer size to 1 in debug builds

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ext/posix: posix_isatty set errno for it too.

Close GH-13918

Check major, minor and makedev with Autoconf's AC_HEADER_MAJOR (#13706)

The non-standard major(), minor(), and makedev() can be defined as
macros. These are usually used together with th

Check major, minor and makedev with Autoconf's AC_HEADER_MAJOR (#13706)

The non-standard major(), minor(), and makedev() can be defined as
macros. These are usually used together with the Autoconf macro
AC_HEADER_MAJOR, which defines the MAJOR_IN_MKDEV if sys/mkdev.h is
available, or MAJOR_IN_SYSMACROS if sys/sysmacros.h is available.

On Solaris/illumos they are in the sys/mkdev.h header (macro defined to
libc implementation) and in sys/sysmacros.h (macro defined with binary
operators and bits shifting). On systems with musl and glibc 2.28 or
later they are defined in sys/sysmacros.h, in glibc 2.27 and earlier
they were in sys/types.h. On BSD-based systems and macOS they are in the
sys/types.h.

Autoconf 2.70 has fixed the AC_HEADER_MAJOR macro, so it detects the
headers properly due to glibc 2.25 throwing deprecation warnings when
using the macros from sys/types.h. With Autoconf 2.69 and earlier the
ac_cv_header_sys_types_h_makedev cache variable can skip the
improper sys/types.h check in the macro.

This change syncs the usage within the ext/fileinfo/libmagic bundled
library and ext/posix.

When sys/mkdev.h header is available, code includes that, otherwise
it conditionally includes the sys/sysmacros.h. The ext/posix has
additional check whether linker sees the makedev, otherwise it checks
if makedev is declared within the given set of headers accoring to the
AC_HEADER_MAJOR logic. Previously the AC_CHECK_FUNCS didn't detect it.

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Refactor utsname.domainname struct member Autoconf check (#13336)

* Refactor utsname.domainname struct member Autoconf check

Autoconf's AC_CHECK_MEMBERS macro (available since Autoc

Refactor utsname.domainname struct member Autoconf check (#13336)

* Refactor utsname.domainname struct member Autoconf check

Autoconf's AC_CHECK_MEMBERS macro (available since Autoconf 2.50) can be
used instead of the compile check. This was originally implemented for
IRIX compatibility, when Autoconf 2.13 didn't have the struct members
checking macro yet.

Macro by default here defines the HAVE_STRUCT_UTSNAME_DOMAINNAME symbol.

* Remove also redundant DARWIN symbol check

Checking in the configuration step also correctly detects missing struct
member on Darwin systems (macos...).

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Refactor checks for fpathconf and pathconf

These two might not be available everywhere so we check them in
config.m4 when doing the configure step. Check is skipped for musl libc
due

Refactor checks for fpathconf and pathconf

These two might not be available everywhere so we check them in
config.m4 when doing the configure step. Check is skipped for musl libc
due to limited implementation.

Constants that are defined into main/php_config.h:
HAVE_FPATHCONF
HAVE_PATHCONF

Implemented via GH-10238
Related to GH-10350
Fixes GH-12725

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Fix use-of-uninitialized-value when calling php_posix_stream_get_fd (#11694)

Passing a double pointer to php_stream_cast means the caller of
php_posix_stream_get_fd will never receive th

Fix use-of-uninitialized-value when calling php_posix_stream_get_fd (#11694)

Passing a double pointer to php_stream_cast means the caller of
php_posix_stream_get_fd will never receive the actual value. Moreover,
php_posix_stream_get_fd may only write the low sizeof(php_socket_t) bytes of fd,
so we need to initialize the upper bytes to 0 to avoid partial
use-of-uninitialized-value.

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ext/posix: posix_isatty() fix use-of-uninitialized-value (#11676)

When the value passed is not representable as an int then it is not a TTY and thus should return false immediately.

ext/posix: posix_isatty() fix use-of-uninitialized-value (#11676)

When the value passed is not representable as an int then it is not a TTY and thus should return false immediately.

This was reported by MSAN.

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Add tests for uncastable streams and dataloss streams (#10173)

And suppress the nonsensical warnings by passing the PHP_STREAM_CAST_INTERNAL flag.

ext/posix: posix_eaccess little update and forgotten UPGRADING entry. (#10965)

ext/posix: proposing posix_eaccess. unlike access, it is not standard but available in enough platforms ; on linux it's euidaccess in reality eaccess being 'just' an alias. key difference is eaccess

ext/posix: proposing posix_eaccess. unlike access, it is not standard but available in enough platforms ; on linux it's euidaccess in reality eaccess being 'just' an alias. key difference is eaccess checks the effective user id instead.

Close GH-10917

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posix: fix misuse of bool (invalid code in c23)

a bool pointer argument cannot take true or false but either &boolval
or NULL

Closes GH-10577.

posix detects posix_pathconf api.

alpine linux throws undefined reference at build time, thus
not assuming it s necessarily available.

Closes GH-10350.

Fix GH-8329 Print true/false instead of bool in error and debug messages (#8385)

posix adding posix_fpathconf.

follow-up on GH-10238 but with the file descriptor flavor.

Close GH-10253

posix_pathconf throwing ValueError on empty path

follow-up on GH-10238. (#10243)

fixes based on feedback.

posix adding posix_pathconf.

to get configuration variables from a directory/file.
Closes GH-10238.

Check that int file descriptor is valid for posix_(isatty|ttyname)

Manually handle int ZPP for posix_isatty()/posix_ttyname()

Fix memory leak in posix_ttyname()

Closes GH-10190

Allow specifying resource in posix_getrlimit() for single result

Closes GH-9790

posix add sysconf call.

providing handful of common and most used constants.

Closes GH-9481.

Declare ext/posix constants in stubs (#9095)