1 files changed, 19 insertions, 0 deletions

diff --git a/networking/tunctl.c b/networking/tunctl.c
index e17a9db64..8cb733b68 100644
--- a/networking/tunctl.c
+++ b/networking/tunctl.c
@@ -9,6 +9,25 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
+
+//usage:#define tunctl_trivial_usage
+//usage:       "[-f device] ([-t name] | -d name)" IF_FEATURE_TUNCTL_UG(" [-u owner] [-g group] [-b]")
+//usage:#define tunctl_full_usage "\n\n"
+//usage:       "Create or delete tun interfaces\n"
+//usage:     "\nOptions:"
+//usage:     "\n        -f name         tun device (/dev/net/tun)"
+//usage:     "\n        -t name         Create iface 'name'"
+//usage:     "\n        -d name         Delete iface 'name'"
+//usage:        IF_FEATURE_TUNCTL_UG(
+//usage:     "\n        -u owner        Set iface owner"
+//usage:     "\n        -g group        Set iface group"
+//usage:     "\n        -b              Brief output"
+//usage:        )
+//usage:
+//usage:#define tunctl_example_usage
+//usage:       "# tunctl\n"
+//usage:       "# tunctl -d tun0\n"
+
 #include <netinet/in.h>
 #include <net/if.h>
 #include <linux/if_tun.h>