Req #70932 [Com]: Add ability to prevent handles inheritance in popen / proc_open

Edit report at https://bugs.php.net/bug.php?id=70932&edit=1 ID: 70932 Comment by: kelunik@php.net Reported by: speller at yandex dot ru Summary: Add ability to prevent handles inheritance in popen / proc_open Status: Open Type: Feature/Change Request Package: Program Execution Operating System: Irrelevant PHP Version: 7.1.10 Block user comment: N Private report: N New Comment: The 'e' flag doesn't work on Windows, works only for fopen and I don't know any library that uses it, so it doesn't really help. I think the default should be changed to use O_CLOEXEC. Another alternative is to just close all descriptors after the fork and before the exec that are not 0|1|2, at least with an option such as "inherit_handles" => false. On Windows it's trivial to implement "inherit_handles" => false, because it's explicitly set there. Previous Comments: ------------------------------------------------------------------------ [2017-10-10 10:03:03] speller at yandex dot ru Will the 'e' fopen flag work under Windows? ------------------------------------------------------------------------ [2017-10-10 08:43:59] mike@php.net See the 'e' mode flag for fopen. ------------------------------------------------------------------------ [2017-10-09 09:41:28] kelunik@php.net This issue appears on both Windows and Unix as it seems. It causes https://github.com/amphp/aerys/issues/192 and without a fix it's not possible to launch long-running child processes in any long running PHP script like an app server. ------------------------------------------------------------------------ [2015-11-18 05:14:49] speller at yandex dot ru I tried the proc_open() function but it has the same issue - file handles are inherited from the parent process. So all files opened in the parent process at the time of the child process starting remain opened all the time while child process is running. This is an important issue if child process should work much longer than parent process. ------------------------------------------------------------------------ [2015-11-18 04:22:40] requinix@php.net popen is supposed to behave like a fork. The Windows behavior mirrors the Unix behavior. http://linux.die.net/man/3/popen Maybe you should be using proc_open? ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=70932 -- Edit this bug report at https://bugs.php.net/bug.php?id=70932&edit=1