Fix GH-14037: Make /ping of php-fpm work with pm.status_listen pool

The ping feature of php-fpm monitoring was previously not working
in pm.status_listen pool due to the configuration variables ping.path
and ping.response not being copied over to the worker when forked. This
results in the ping code path being disabled because the worker detects
that ping.path is not configured.

Closes GH-13980

Co-authored-by: Pierrick Charron <pierrick@php.net>

NEWS

@@ -22,6 +22,10 @@ PHP                                                                        NEWS
 - DOM:
   . Fixed bug GH-14343 (Memory leak in xml and dom). (nielsdos)
 
+- FPM:
+  . Fixed bug GH-14037 (PHP-FPM ping.path and ping.response config vars are
+    ignored in status pool). (Wilhansen Li, Pierrick Charron)
+
 - GD:
   . Fix parameter numbers for imagecolorset(). (Giovanni Giacobbi)
 

sapi/fpm/fpm/fpm_conf.c

@@ -752,6 +752,8 @@ static int fpm_worker_pool_shared_status_alloc(struct fpm_worker_pool_s *shared_
 	FPM_WPC_STR_CP(config, shared_config, user);
 	FPM_WPC_STR_CP(config, shared_config, group);
 	FPM_WPC_STR_CP(config, shared_config, pm_status_path);
+	FPM_WPC_STR_CP(config, shared_config, ping_path);
+	FPM_WPC_STR_CP(config, shared_config, ping_response);
 
 	config->pm = PM_STYLE_ONDEMAND;
 	config->pm_max_children = 2;

sapi/fpm/tests/status-ping.phpt

@@ -0,0 +1,40 @@
+--TEST--
+FPM: Ping on the status invisible pool
+--SKIPIF--
+<?php include "skipif.inc"; ?>
+--FILE--
+<?php
+
+require_once "tester.inc";
+
+$cfg = <<<EOT
+[global]
+error_log = {{FILE:LOG}}
+[unconfined]
+listen = {{ADDR}}
+pm = static
+pm.max_children = 1
+pm.status_listen = {{ADDR[status]}}
+pm.status_path = /status
+ping.path = /ping
+ping.response = pong
+EOT;
+
+$tester = new FPM\Tester($cfg);
+$tester->start();
+$tester->expectLogStartNotices();
+$tester->ping('{{ADDR[status]}}');
+usleep(100000);
+$tester->terminate();
+$tester->expectLogTerminatingNotices();
+$tester->close();
+
+?>
+Done
+--EXPECT--
+Done
+--CLEAN--
+<?php
+require_once "tester.inc";
+FPM\Tester::clean();
+?>