Convenience routine for checking superuser status.

src/backend/utils/misc/superuser.c

@@ -0,0 +1,43 @@
+/*-------------------------------------------------------------------------
+ *
+ * superuser.c--
+ *
+ *    The superuser() function.  Determines if user has superuser privilege.
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *    $Header: /cvsroot/pgsql/src/backend/utils/misc/superuser.c,v 1.1 1996/11/02 02:06:47 bryanh Exp $
+ *
+ * DESCRIPTION
+ *    See superuser().
+ *-------------------------------------------------------------------------
+ */
+
+#include <c.h>
+#include <postgres.h>
+#include <access/htup.h>
+#include <utils/syscache.h>
+#include <catalog/pg_user.h>
+
+
+
+bool
+superuser(void) {
+/*--------------------------------------------------------------------------
+    The Postgres user running this command has Postgres superuser 
+    privileges.
+--------------------------------------------------------------------------*/
+    extern char *UserName;  /* defined in global.c */
+
+    HeapTuple utup;
+
+    utup = SearchSysCacheTuple(USENAME, PointerGetDatum(UserName),
+			       0,0,0);
+    Assert(utup != NULL);
+    return ((Form_pg_user)GETSTRUCT(utup))->usesuper;
+}
+
+
+