Cleanup some multicast code; fix for mac os x?

When I moved some stuff from sockets.c to multicast.c, I did not copy
some conditional defines for systems without the RFC 3678 API.

I moved such defines to multicast.h so both sockets.c and multicast.c
can benefit from them and I prefixed them with PHP_ so that it's less
confusing: now PHP_MCAST_* are defined to either the MCAST_* RFC 3678
APIs or to legacy APIs and MCAST_* always mean the (possibly undefined)
system definitions.

Author: cataphract

ext/sockets/multicast.c

@@ -152,10 +152,10 @@ static int php_do_mcast_opt(php_socket *php_sock, int level, int optname, zval *
 #endif
 
 	switch (optname) {
-	case MCAST_JOIN_GROUP:
+	case PHP_MCAST_JOIN_GROUP:
 		mcast_req_fun = &php_mcast_join;
 		goto mcast_req_fun;
-	case MCAST_LEAVE_GROUP:
+	case PHP_MCAST_LEAVE_GROUP:
 		{
 			php_sockaddr_storage	group = {0};
 			socklen_t				glen;
@@ -180,16 +180,16 @@ static int php_do_mcast_opt(php_socket *php_sock, int level, int optname, zval *
 		}
 
 #ifdef HAS_MCAST_EXT
-	case MCAST_BLOCK_SOURCE:
+	case PHP_MCAST_BLOCK_SOURCE:
 		mcast_sreq_fun = &php_mcast_block_source;
 		goto mcast_sreq_fun;
-	case MCAST_UNBLOCK_SOURCE:
+	case PHP_MCAST_UNBLOCK_SOURCE:
 		mcast_sreq_fun = &php_mcast_unblock_source;
 		goto mcast_sreq_fun;
-	case MCAST_JOIN_SOURCE_GROUP:
+	case PHP_MCAST_JOIN_SOURCE_GROUP:
 		mcast_sreq_fun = &php_mcast_join_source;
 		goto mcast_sreq_fun;
-	case MCAST_LEAVE_SOURCE_GROUP:
+	case PHP_MCAST_LEAVE_SOURCE_GROUP:
 		{
 			php_sockaddr_storage	group = {0},
 									source = {0};
@@ -248,13 +248,13 @@ int php_do_setsockopt_ip_mcast(php_socket *php_sock,
 	int				retval;
 
 	switch (optname) {
-	case MCAST_JOIN_GROUP:
-	case MCAST_LEAVE_GROUP:
+	case PHP_MCAST_JOIN_GROUP:
+	case PHP_MCAST_LEAVE_GROUP:
 #ifdef HAS_MCAST_EXT
-	case MCAST_BLOCK_SOURCE:
-	case MCAST_UNBLOCK_SOURCE:
-	case MCAST_JOIN_SOURCE_GROUP:
-	case MCAST_LEAVE_SOURCE_GROUP:
+	case PHP_MCAST_BLOCK_SOURCE:
+	case PHP_MCAST_UNBLOCK_SOURCE:
+	case PHP_MCAST_JOIN_SOURCE_GROUP:
+	case PHP_MCAST_LEAVE_SOURCE_GROUP:
 #endif
 		if (php_do_mcast_opt(php_sock, level, optname, arg4 TSRMLS_CC) == FAILURE) {
 			return FAILURE;
@@ -316,13 +316,13 @@ int php_do_setsockopt_ipv6_mcast(php_socket *php_sock,
 	int				retval;
 
 	switch (optname) {
-	case MCAST_JOIN_GROUP:
-	case MCAST_LEAVE_GROUP:
+	case PHP_MCAST_JOIN_GROUP:
+	case PHP_MCAST_LEAVE_GROUP:
 #ifdef HAS_MCAST_EXT
-	case MCAST_BLOCK_SOURCE:
-	case MCAST_UNBLOCK_SOURCE:
-	case MCAST_JOIN_SOURCE_GROUP:
-	case MCAST_LEAVE_SOURCE_GROUP:
+	case PHP_MCAST_BLOCK_SOURCE:
+	case PHP_MCAST_UNBLOCK_SOURCE:
+	case PHP_MCAST_JOIN_SOURCE_GROUP:
+	case PHP_MCAST_LEAVE_SOURCE_GROUP:
 #endif
 		if (php_do_mcast_opt(php_sock, level, optname, arg4 TSRMLS_CC) == FAILURE) {
 			return FAILURE;

ext/sockets/multicast.h

@@ -19,12 +19,30 @@
 /* $Id$ */
 
 #if defined(MCAST_JOIN_GROUP) && !defined(__APPLE__)
-#define RFC3678_API 1
+# define RFC3678_API 1
 /* has block/unblock and source membership, in this case for both IPv4 and IPv6 */
-#define HAS_MCAST_EXT 1
+# define HAS_MCAST_EXT 1
 #elif defined(IP_ADD_SOURCE_MEMBERSHIP) && !defined(__APPLE__)
 /* has block/unblock and source membership, but only for IPv4 */
-#define HAS_MCAST_EXT 1
+# define HAS_MCAST_EXT 1
+#endif
+
+#ifndef RFC3678_API
+# define PHP_MCAST_JOIN_GROUP			IP_ADD_MEMBERSHIP
+# define PHP_MCAST_LEAVE_GROUP			IP_DROP_MEMBERSHIP
+# ifdef HAS_MCAST_EXT
+#  define PHP_MCAST_BLOCK_SOURCE		IP_BLOCK_SOURCE
+#  define PHP_MCAST_UNBLOCK_SOURCE		IP_UNBLOCK_SOURCE
+#  define PHP_MCAST_JOIN_SOURCE_GROUP	IP_ADD_SOURCE_MEMBERSHIP
+#  define PHP_MCAST_LEAVE_SOURCE_GROUP	IP_DROP_SOURCE_MEMBERSHIP
+# endif
+#else
+# define PHP_MCAST_JOIN_GROUP			MCAST_JOIN_GROUP
+# define PHP_MCAST_LEAVE_GROUP			MCAST_LEAVE_GROUP
+# define PHP_MCAST_BLOCK_SOURCE			MCAST_BLOCK_SOURCE
+# define PHP_MCAST_UNBLOCK_SOURCE		MCAST_UNBLOCK_SOURCE
+# define PHP_MCAST_JOIN_SOURCE_GROUP	MCAST_JOIN_SOURCE_GROUP
+# define PHP_MCAST_LEAVE_SOURCE_GROUP	MCAST_LEAVE_SOURCE_GROUP
 #endif
 
 int php_do_setsockopt_ip_mcast(php_socket *php_sock,

ext/sockets/sockets.c

@@ -688,24 +688,13 @@ PHP_MINIT_FUNCTION(sockets)
 	REGISTER_LONG_CONSTANT("PHP_NORMAL_READ", PHP_NORMAL_READ, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("PHP_BINARY_READ", PHP_BINARY_READ, CONST_CS | CONST_PERSISTENT);
 
-#ifndef RFC3678_API
-#define MCAST_JOIN_GROUP			IP_ADD_MEMBERSHIP
-#define MCAST_LEAVE_GROUP			IP_DROP_MEMBERSHIP
+	REGISTER_LONG_CONSTANT("MCAST_JOIN_GROUP",			PHP_MCAST_JOIN_GROUP,			CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("MCAST_LEAVE_GROUP",			PHP_MCAST_LEAVE_GROUP,			CONST_CS | CONST_PERSISTENT);
 #ifdef HAS_MCAST_EXT
-#define MCAST_BLOCK_SOURCE			IP_BLOCK_SOURCE
-#define MCAST_UNBLOCK_SOURCE		IP_UNBLOCK_SOURCE
-#define MCAST_JOIN_SOURCE_GROUP		IP_ADD_SOURCE_MEMBERSHIP
-#define MCAST_LEAVE_SOURCE_GROUP	IP_DROP_SOURCE_MEMBERSHIP
-#endif
-#endif
-
-	REGISTER_LONG_CONSTANT("MCAST_JOIN_GROUP",			MCAST_JOIN_GROUP,			CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("MCAST_LEAVE_GROUP",			MCAST_LEAVE_GROUP,			CONST_CS | CONST_PERSISTENT);
-#ifdef HAS_MCAST_EXT
-	REGISTER_LONG_CONSTANT("MCAST_BLOCK_SOURCE",		MCAST_BLOCK_SOURCE,			CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("MCAST_UNBLOCK_SOURCE",		MCAST_UNBLOCK_SOURCE,		CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("MCAST_JOIN_SOURCE_GROUP",	MCAST_JOIN_SOURCE_GROUP,	CONST_CS | CONST_PERSISTENT);
-	REGISTER_LONG_CONSTANT("MCAST_LEAVE_SOURCE_GROUP",	MCAST_LEAVE_SOURCE_GROUP,	CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("MCAST_BLOCK_SOURCE",		PHP_MCAST_BLOCK_SOURCE,			CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("MCAST_UNBLOCK_SOURCE",		PHP_MCAST_UNBLOCK_SOURCE,		CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("MCAST_JOIN_SOURCE_GROUP",	PHP_MCAST_JOIN_SOURCE_GROUP,	CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("MCAST_LEAVE_SOURCE_GROUP",	PHP_MCAST_LEAVE_SOURCE_GROUP,	CONST_CS | CONST_PERSISTENT);
 #endif
 
 	REGISTER_LONG_CONSTANT("IP_MULTICAST_IF",			IP_MULTICAST_IF,		CONST_CS | CONST_PERSISTENT);