returns the number of file descriptors that a process can handle.
e.g. useful after pcntl_fork() to close all the file descriptors up
to that boundary.
close GH-16681
The m4_normalize is for Autoconf < 2.70 (on 2.70 and later versions a
blank-or-newline separated items can be expanded without using
backslash-newline).
This also syncs the 1st argument quotes.
* Include from build dir first
This fixes out of tree builds by ensuring that configure artifacts are included
from the build dir.
Before, out of tree builds would preferably include files from the src dir, as
the include path was defined as follows (ignoring includes from ext/ and sapi/) :
-I$(top_builddir)/main
-I$(top_srcdir)
-I$(top_builddir)/TSRM
-I$(top_builddir)/Zend
-I$(top_srcdir)/main
-I$(top_srcdir)/Zend
-I$(top_srcdir)/TSRM
-I$(top_builddir)/
As a result, an out of tree build would include configure artifacts such as
`main/php_config.h` from the src dir.
After this change, the include path is defined as follows:
-I$(top_builddir)/main
-I$(top_builddir)
-I$(top_srcdir)/main
-I$(top_srcdir)
-I$(top_builddir)/TSRM
-I$(top_builddir)/Zend
-I$(top_srcdir)/Zend
-I$(top_srcdir)/TSRM
* Fix extension include path for out of tree builds
* Include config.h with the brackets form
`#include "config.h"` searches in the directory containing the including-file
before any other include path. This can include the wrong config.h when building
out of tree and a config.h exists in the source tree.
Using `#include <config.h>` uses exclusively the include path, and gives
priority to the build dir.
This enables cross-compiling to set the php_cv_func_ttyname_r variable
for adjusting the configuration manually.
In case of cross-compiling the AC_CHECK_FUNCS is additionally used to
guess whether the target has the ttyname_r. Current platforms mostly
either have working ttyname_r compatible with POSIX or not.
* PHP-8.3:
[ci skip] NEWS
[ci skip] NEWS
fix: zend-max-execution-timers with negative or high timeout value (#13942)
Use return value of getpwuid_r(), not errno (#13969)
* PHP-8.2:
[ci skip] NEWS
fix: zend-max-execution-timers with negative or high timeout value (#13942)
Use return value of getpwuid_r(), not errno (#13969)
- 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
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.
* 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...).
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
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.
The issue was that passwd was empty for the issue reporter, but the test
expected passwd to be non-empty. An empty passwd can occur if there is
no (encrypted) group password set up.
