sockets add AF_DIVERT constant.

Allow to bind a socket to a divert port without being concerned
by its address. for ipfw filter purpose (SO_USER_COOKIE constant).
FreeBSD only.

Close GH-10415.

NEWS

@@ -94,6 +94,7 @@ PHP                                                                        NEWS
   . Added TCP_QUICKACK constant, to give tigher control over
     ACK delays. (David Carlier)
   . Added DONTFRAGMENT support for path MTU discovery purpose. (David Carlier)
+  . Added AF_DIVERT for raw socket for divert ports. (David Carlier)
 
 - Standard:
   . E_NOTICEs emitted by unserialize() have been promoted to E_WARNING. (timwolla)

UPGRADING

@@ -132,6 +132,7 @@ PHP 8.3 UPGRADE NOTES
   . IP_PMTUDISC_PROBE (Linux only).
   . IP_PMTUDISC_INTERFACE (Linux only).
   . IP_PMTUDISC_OMIT (Linux only).
+  . AF_DIVERT (FreeBSD only).
 
 ========================================
 11. Changes to INI File Handling

ext/sockets/sockets.stub.php

@@ -19,6 +19,13 @@ const AF_INET = UNKNOWN;
  */
 const AF_INET6 = UNKNOWN;
 #endif
+#ifdef AF_DIVERT
+/**
+ * @var int
+ * @cvalue AF_DIVERT
+ */
+const AF_DIVERT = UNKNOWN;
+#endif
 /**
  * @var int
  * @cvalue SOCK_STREAM

ext/sockets/sockets_arginfo.h

@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: add91c303eddf7518566bc7e6c1698d7198c0d4c */
+ * Stub hash: bf1d22072bd147128a33d82f8b3fc441cf95156a */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_socket_select, 0, 4, MAY_BE_LONG|MAY_BE_FALSE)
 	ZEND_ARG_TYPE_INFO(1, read, IS_ARRAY, 1)
@@ -340,6 +340,9 @@ static void register_sockets_symbols(int module_number)
 	REGISTER_LONG_CONSTANT("AF_INET", AF_INET, CONST_PERSISTENT);
 #if HAVE_IPV6
 	REGISTER_LONG_CONSTANT("AF_INET6", AF_INET6, CONST_PERSISTENT);
+#endif
+#if defined(AF_DIVERT)
+	REGISTER_LONG_CONSTANT("AF_DIVERT", AF_DIVERT, CONST_PERSISTENT);
 #endif
 	REGISTER_LONG_CONSTANT("SOCK_STREAM", SOCK_STREAM, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("SOCK_DGRAM", SOCK_DGRAM, CONST_PERSISTENT);