Make socket support compile under Solaris 8 with the Sun WorkShop compiler.

PR: 8468

ext/sockets/sockets.c

@@ -26,9 +26,14 @@
 
 /* This hopefully will fix some compile errors on other platforms --
  * the usage of msg_control/msg_controllen are X/Open Extended attributes,
- * or so it seems, by reading HP/UX 10.20 manual pages. */
+ * or so it seems, by reading HP/UX 10.20 manual pages.
+ *
+ * The second two defines are for Solaris 8 with the Sun WorkShop compiler.
+ */
 
 #define _XOPEN_SOURCE_EXTENDED
+#define _XPG4_2
+#define __EXTENSIONS__
 
 #include "ext/standard/info.h"
 #include "php_sockets.h"
@@ -66,6 +71,12 @@ php_sockets_globals sockets_globals;
 #endif
 #endif
 
+/* Solaris 8 doesn't appear to define SUN_LEN in <sys/un.h> */
+#ifndef SUN_LEN
+#define SUN_LEN(su) \
+	(sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
+#endif
+
 /* Use the read() wrapper, stopping at '\n', '\r', or '\0'. */
 #define PHP_NORMAL_READ 0x0001
 /* Use the read() wrapper, but read until the entire buffer is filled. */