Add a GraphViz-exporting ngctl(8) "dot" command. You can now create

very useful .dot files of your netgraph(4) to quickly visualize the
nodes, hooks and edges.  An example of this can be found here:
	http://people.freebsd.org/~green/sample-netgraph-dot.ps
If anyone would like to refine the output further, please do so.

1 files changed, 12 insertions, 10 deletions

diff --git a/usr.sbin/ngctl/ngctl.8 b/usr.sbin/ngctl/ngctl.8
index 5680c98..b98d507 100644
--- a/usr.sbin/ngctl/ngctl.8
+++ b/usr.sbin/ngctl/ngctl.8
@@ -97,19 +97,21 @@ The currently supported commands in
 are:
 .Pp
 .Bd -literal -offset indent -compact
-connect    Connects two nodes
+config     get or set configuration of node at <path>
+connect    Connects hook <peerhook> of the node at <relpath> to <hook>
 debug      Get/set debugging verbosity level
-help       Show command summary or get help on a command
+dot        Produce a GraphViz (.dot) of the entire netgraph.
+help       Show command summary or get more help on a specific command
 list       Show information about all nodes
-mkpeer     Create and connect a new node to an existing node
-msg        Send an ASCII formatted message to a node
-name       Assign a name to a node
+mkpeer     Create and connect a new node to the node at "path"
+msg        Send a netgraph control message to the node at "path"
+name       Assign name <name> to the node at <path>
 read       Read and execute commands from a file
-rmhook     Disconnect a node's hook
-show       Show information about a node
-shutdown   Shutdown a node
-status     Get human readable status from a node
-types      Show all installed node types
+rmhook     Disconnect hook "hook" of the node at "path"
+show       Show information about the node at <path>
+shutdown   Shutdown the node at <path>
+status     Get human readable status information from the node at <path>
+types      Show information about all installed node types
 write      Send a data packet down the hook named by "hook".
 quit       Exit program
 .Ed