diff --git a/lib/libc/gen/sysconf.3 b/lib/libc/gen/sysconf.3
index 61bed630f07d..8c48808b1a05 100644
--- a/lib/libc/gen/sysconf.3
+++ b/lib/libc/gen/sysconf.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: sysconf.3,v 1.7 1998/04/28 20:11:35 fair Exp $
+.\"	$NetBSD: sysconf.3,v 1.8 1998/05/24 20:12:25 kleink Exp $
 .\"
 .\" Copyright (c) 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -146,6 +146,10 @@ otherwise \-1.
 .It Li _SC_2_UPE
 Return 1 if the system supports the User Portability Utilities Option,
 otherwise \-1.
+.It Li _SC_PAGESIZE
+The size of a system page in bytes.
+.It Li _SC_FSYNC
+Return 1 if the system supports the File Synchronisation Option, otherwise \-1.
 .El
 .Sh RETURN VALUES
 If the call to
diff --git a/lib/libc/gen/sysconf.c b/lib/libc/gen/sysconf.c
index 825a8cb20fe8..5d3a51a87cd3 100644
--- a/lib/libc/gen/sysconf.c
+++ b/lib/libc/gen/sysconf.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: sysconf.c,v 1.7 1998/03/30 14:33:22 kleink Exp $	*/
+/*	$NetBSD: sysconf.c,v 1.8 1998/05/24 20:12:27 kleink Exp $	*/
 
 /*-
  * Copyright (c) 1993
@@ -41,7 +41,7 @@
 #if 0
 static char sccsid[] = "@(#)sysconf.c	8.2 (Berkeley) 3/20/94";
 #else
-__RCSID("$NetBSD: sysconf.c,v 1.7 1998/03/30 14:33:22 kleink Exp $");
+__RCSID("$NetBSD: sysconf.c,v 1.8 1998/05/24 20:12:27 kleink Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -118,6 +118,16 @@ sysconf(name)
 		mib[1] = KERN_POSIX1;
 		break;
 
+/* 1003.1b */
+	case _SC_PAGESIZE:
+		mib[0] = CTL_HW;
+		mib[1] = HW_PAGESIZE;
+		break;
+	case _SC_FSYNC:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_FSYNC;
+		goto yesno;
+
 /* 1003.2 */
 	case _SC_BC_BASE_MAX:
 		mib[0] = CTL_USER;
@@ -186,6 +196,12 @@ sysconf(name)
 	case _SC_2_UPE:
 		mib[0] = CTL_USER;
 		mib[1] = USER_POSIX2_UPE;
+		goto yesno;
+
+/* XPG 4.2 */
+	case _SC_XOPEN_SHM:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_SYSVSHM;
 yesno:		if (sysctl(mib, 2, &value, &len, NULL, 0) == -1)
 			return (-1);
 		if (value == 0)
diff --git a/usr.bin/getconf/getconf.c b/usr.bin/getconf/getconf.c
index c01cd006b79e..276bf391c13f 100644
--- a/usr.bin/getconf/getconf.c
+++ b/usr.bin/getconf/getconf.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: getconf.c,v 1.6 1997/10/19 02:13:41 lukem Exp $	*/
+/*	$NetBSD: getconf.c,v 1.7 1998/05/24 20:12:28 kleink Exp $	*/
 
 /*-
  * Copyright (c) 1996 The NetBSD Foundation, Inc.
@@ -38,7 +38,7 @@
 
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: getconf.c,v 1.6 1997/10/19 02:13:41 lukem Exp $");
+__RCSID("$NetBSD: getconf.c,v 1.7 1998/05/24 20:12:28 kleink Exp $");
 #endif /* not lint */
 
 #include <err.h>
@@ -133,6 +133,15 @@ const struct conf_variable conf_table[] =
   { "_POSIX_NO_TRUNC",		PATHCONF,	_PC_NO_TRUNC		},
   { "_POSIX_VDISABLE",		PATHCONF,	_PC_VDISABLE		},
 
+  /* POSIX.1.b Configurable System Variables */
+  { "_POSIX_FSYNC",		SYSCONF,	_SC_FSYNC		},
+  { "PAGESIZE",			SYSCONF,	_SC_PAGESIZE		},
+
+  /* XPG4.2 Configurable System Variables */
+  { "_XOPEN_SHM",		SYSCONF,	_SC_XOPEN_SHM		},
+
+  /* X/Open Spec 1170 Configurable System Variables. */
+  { "PAGE_SIZE",		SYSCONF,	_SC_PAGE_SIZE		},
   { NULL }
 };