make -a the default, for consistency with other *ctl programs ...

ok sthen@, looks good to oga@

2 files changed, 8 insertions, 6 deletions

diff --git a/usr.bin/radioctl/radioctl.1 b/usr.bin/radioctl/radioctl.1
index 306b3a6c40f..8ce09ca8737 100644
--- a/usr.bin/radioctl/radioctl.1
+++ b/usr.bin/radioctl/radioctl.1
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: radioctl.1,v 1.13 2007/09/27 21:55:54 sobrado Exp $
+.\"	$OpenBSD: radioctl.1,v 1.14 2008/10/16 02:21:26 jakemsr Exp $
 .\"
 .\" Copyright (c) 2001 Vladimir Popov
 .\" All rights reserved.
@@ -23,7 +23,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: September 27 2007 $
+.Dd $Mdocdate: October 16 2008 $
 .Dt RADIOCTL 1
 .Os
 .Sh NAME
@@ -60,6 +60,8 @@ The options are as follows:
 .Bl -tag -width Ds
 .It Fl a
 Print all device variables and their current values.
+This is the default, if no parameters are given to
+.Nm .
 .It Fl f Ar file
 Specify an alternative radio tuner device.
 .It Fl n
diff --git a/usr.bin/radioctl/radioctl.c b/usr.bin/radioctl/radioctl.c
index e611e4ecf85..488365d8121 100644
--- a/usr.bin/radioctl/radioctl.c
+++ b/usr.bin/radioctl/radioctl.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: radioctl.c,v 1.14 2007/09/27 21:55:54 sobrado Exp $ */
+/* $OpenBSD: radioctl.c,v 1.15 2008/10/16 02:21:26 jakemsr Exp $ */
 /* $RuOBSD: radioctl.c,v 1.4 2001/10/20 18:09:10 pva Exp $ */
 
 /*
@@ -138,9 +138,6 @@ main(int argc, char **argv)
 	int silent = 0;
 	int mode = O_RDONLY;
 
-	if (argc < 2)
-		usage();
-
 	radiodev = getenv(RADIO_ENV);
 	if (radiodev == NULL)
 		radiodev = RADIODEVICE;
@@ -171,6 +168,9 @@ main(int argc, char **argv)
 	argc -= optind;
 	argv += optind;
 
+	if (argc == 0)
+		show_vars = 1;
+
 	/*
 	 * Scan the options for `name=value` so the
 	 * device can be opened in the proper mode.