FPM: Emit error for invalid port setting

NEWS

@@ -10,6 +10,9 @@ PHP                                                                        NEWS
   . Fixed bug GH-7771 (Fix filename/lineno of constant expressions). (ilutov)
   . Fixed bug GH-7792 (Improve class type in error messages). (ilutov)
 
+- FPM:
+  . Emit error for invalid port setting. (David Carlier)
+
 - Intl:
   . Update all grandfathered language tags with preferred values
   . Fixed GH-7939 (Cannot unserialize IntlTimeZone objects). (cmb)

sapi/fpm/fpm/fpm_sockets.c

@@ -334,7 +334,7 @@ static int fpm_socket_af_inet_listening_socket(struct fpm_worker_pool_s *wp) /*
 		port_str = dup_address;
 	}
 
-	if (port == 0) {
+	if (port < 1 || port > 65535) {
 		zlog(ZLOG_ERROR, "invalid port value '%s'", port_str);
 		free(dup_address);
 		return -1;

sapi/fpm/tests/log-invalid-port.phpt

@@ -0,0 +1,36 @@
+--TEST--
+FPM: test invalid port value
+--SKIPIF--
+<?php include "skipif.inc"; ?>
+--FILE--
+<?php
+
+require_once "tester.inc";
+
+$cfg = <<<EOT
+[global]
+error_log = {{FILE:LOG}}
+[unconfined]
+listen = 127.0.0.1:69002
+pm = dynamic
+pm.max_children = 1
+pm.start_servers = 1
+pm.min_spare_servers = 1
+pm.max_spare_servers = 1
+EOT;
+
+$tester = new FPM\Tester($cfg);
+$tester->start();
+$tester->expectLogError("invalid port value '69002'");
+$tester->terminate();
+$tester->close();
+
+?>
+Done
+--EXPECT--
+Done
+--CLEAN--
+<?php
+require_once "tester.inc";
+FPM\Tester::clean();
+?>