Bug #73783 raises an issue with signal handling when using SIG_IGN.
With PHP7.1 ZEND_SIGNALS is defaulted to on, which will for all
signals set the handler as zend_signal_handler_defer. This is
problematic for syscalls like sleep(), which will only return when the
requisite number of seconds have elapsed, or, a non-ignored signal is
raised. In this case we want to SIG_IGN SIGCHLD, however, SIG_IGN is
only stored in the SIGG(handlers) array, and the actual system level
handler is defined. This prevents proper signal ignoring when requeted.
This patch addresses https://bugs.php.net/bug.php?id=72409
This patch is applied to master compared to PR#1952 which was
patching 5.6.x branch of PHP
This patch takes into account discussions on PR #1978
Addressing that rather than have pcntl_signal() return a value
to create a new function that can be used to get the current
value of the signal handler.
* PHP-5.6:
fix format
update NEWS
Add test for bug #69522
Update tests
Fix bug #69522 - do not allow int overflow
Forgot test file
Fix bug #69403 and other int overflows
Fixed bug #69418 - more s->p fixes for filenames
Fixed bug #69364 - use smart_str to assemble strings
Fix bug #69453 - don't try to cut empty string
Fix bug #69545 - avoid overflow when reading list
Conflicts:
Zend/zend_alloc.c
Zend/zend_operators.c
ext/ftp/ftp.c
ext/pcntl/pcntl.c
ext/standard/basic_functions.c
ext/standard/dir.c
ext/standard/file.c
ext/standard/pack.c
ext/standard/string.c
main/rfc1867.c
* PHP-5.5:
fix format
update NEWS
Add test for bug #69522
Update tests
Fix bug #69522 - do not allow int overflow
Forgot test file
Fix bug #69403 and other int overflows
Fixed bug #69418 - more s->p fixes for filenames
Fixed bug #69364 - use smart_str to assemble strings
Fix bug #69453 - don't try to cut empty string
Fix bug #69545 - avoid overflow when reading list
Conflicts:
ext/standard/pack.c
* PHP-5.4:
fix format
update NEWS
Add test for bug #69522
Update tests
Fix bug #69522 - do not allow int overflow
Forgot test file
Fix bug #69403 and other int overflows
Fixed bug #69418 - more s->p fixes for filenames
Fixed bug #69364 - use smart_str to assemble strings
Fix bug #69453 - don't try to cut empty string
Fix bug #69545 - avoid overflow when reading list
Conflicts:
ext/pcntl/pcntl.c
ext/standard/basic_functions.c
ext/standard/pack.c
ext/standard/tests/dir/opendir_variation1-win32.phpt