sockets ext for solaris update.

socket filter support, system can support up to 32 filters giving the possibility to retrive the full list.
Closes #8191.

Author: devnexen

NEWS

@@ -27,6 +27,9 @@ PHP                                                                        NEWS
   . Fixed bug GH-9089 (Fix memory leak on Randomizer::__construct()
     call twice) (zeriyoshi)
 
+- Sockets:
+  . Added SOL_FILTER socket option for Solaris. (David Carlier)
+
 21 Jul 2022, PHP 8.2.0beta1
 
 - CLI:

ext/sockets/sockets.c

@@ -552,6 +552,11 @@ static PHP_MINIT_FUNCTION(sockets)
 #ifdef SO_ACCEPTFILTER
 	REGISTER_LONG_CONSTANT("SO_ACCEPTFILTER",       SO_ACCEPTFILTER,        CONST_CS | CONST_PERSISTENT);
 #endif
+#ifdef SOL_FILTER
+	REGISTER_LONG_CONSTANT("SOL_FILTER",     SOL_FILTER, CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("FIL_ATTACH",     FIL_ATTACH, CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("FIL_DETACH",     FIL_DETACH, CONST_CS | CONST_PERSISTENT);
+#endif
 #ifdef SO_DONTTRUNC
 	REGISTER_LONG_CONSTANT("SO_DONTTRUNC",       SO_DONTTRUNC,        CONST_CS | CONST_PERSISTENT);
 #endif
@@ -2004,6 +2009,32 @@ PHP_FUNCTION(socket_get_option)
 		}
 	}
 
+#ifdef SOL_FILTER
+	if (level == SOL_FILTER) {
+		switch (optname) {
+
+			case FIL_LIST: {
+				size_t i;
+				struct fil_info fi[32] = {{0}};
+				optlen = sizeof(fi);
+
+				if (getsockopt(php_sock->bsd_socket, level, optname, (char*)fi, &optlen) != 0) {
+					PHP_SOCKET_ERROR(php_sock, "Unable to retrieve socket option", errno);
+					RETURN_FALSE;
+				}
+
+				array_init(return_value);
+
+				for (i = 0; i < optlen / sizeof(struct fil_info); i++) {
+					add_index_string(return_value, i, fi[i].fi_name);
+				}
+
+				return;
+			}
+		}
+	}
+#endif
+
 	optlen = sizeof(other_val);
 
 	if (getsockopt(php_sock->bsd_socket, level, optname, (char*)&other_val, &optlen) != 0) {
@@ -2177,6 +2208,23 @@ PHP_FUNCTION(socket_set_option)
 		}
 #endif
 
+#ifdef FIL_ATTACH
+		case FIL_ATTACH:
+		case FIL_DETACH: {
+			if (level != SOL_FILTER) {
+				php_error_docref(NULL, E_WARNING, "Invalid level");
+				RETURN_FALSE;
+			}
+			if (Z_TYPE_P(arg4) != IS_STRING) {
+				php_error_docref(NULL, E_WARNING, "Invalid filter argument type");
+				RETURN_FALSE;
+			}
+			opt_ptr = Z_STRVAL_P(arg4);
+			optlen = Z_STRLEN_P(arg4);
+			break;
+		}
+#endif
+
 		default:
 default_case:
 			convert_to_long(arg4);