ext/sockets: adding BSD IP_BINDANY constant.

Simply allows the socket to bind to any address, including one not
bound to any network interface.

close GH-17591

NEWS

@@ -132,6 +132,7 @@ PHP                                                                        NEWS
     (David Carlier)
   . socket_getsockname/socket_create/socket_bind handled AF_PACKET family socket.
     (David Carlier)
+  . Added IP_BINDANY for a socket to bind to any address. (David Carlier)
 
 - Sodium:
   . Fix overall theorical overflows on zend_string buffer allocations.

UPGRADING

@@ -267,6 +267,7 @@ PHP 8.5 UPGRADE NOTES
   . TCP_REUSPORT_LB_NUMA_CURDOM (FreeBSD only).
   . TCP_BBR_ALGORITHM (FreeBSD only).
   . AF_PACKET (Linux only).
+  . IP_BINDANY (FreeBSD/NetBSD/OpenBSD only).
 
 ========================================
 11. Changes to INI File Handling

ext/sockets/sockets.stub.php

@@ -1915,6 +1915,13 @@ const TCP_QUICKACK = UNKNOWN;
  */
 const TCP_REPAIR = UNKNOWN;
 #endif
+#if defined(IP_BINDANY)
+/**
+ * @var int
+ * @cvalue IP_BINDANY
+ */
+const IP_BINDANY = UNKNOWN;
+#endif
 #if defined(IP_DONTFRAG)
 /**
  * @var int

ext/sockets/sockets_arginfo.h

@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 0be24cb2f268ab3d43121637ae451d8da4b50410 */
+ * Stub hash: aac197335037777d31d83d4a4040bbfcd0c55813 */
 
 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)
@@ -1060,6 +1060,9 @@ static void register_sockets_symbols(int module_number)
 #if defined(TCP_REPAIR)
 	REGISTER_LONG_CONSTANT("TCP_REPAIR", TCP_REPAIR, CONST_PERSISTENT);
 #endif
+#if defined(IP_BINDANY)
+	REGISTER_LONG_CONSTANT("IP_BINDANY", IP_BINDANY, CONST_PERSISTENT);
+#endif
 #if defined(IP_DONTFRAG)
 	REGISTER_LONG_CONSTANT("IP_DONTFRAG", IP_DONTFRAG, CONST_PERSISTENT);
 #endif