1 files changed, 27 insertions, 0 deletions

diff --git a/networking/ipcalc.c b/networking/ipcalc.c
index acbaa4ac5..f96c73912 100644
--- a/networking/ipcalc.c
+++ b/networking/ipcalc.c
@@ -11,6 +11,33 @@
  *
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+
+//usage:#define ipcalc_trivial_usage
+//usage:       "[OPTIONS] ADDRESS[[/]NETMASK] [NETMASK]"
+//usage:#define ipcalc_full_usage "\n\n"
+//usage:       "Calculate IP network settings from a IP address\n"
+//usage:     "\nOptions:"
+//usage:        IF_FEATURE_IPCALC_LONG_OPTIONS(
+//usage:     "\n        -b,--broadcast  Display calculated broadcast address"
+//usage:     "\n        -n,--network    Display calculated network address"
+//usage:     "\n        -m,--netmask    Display default netmask for IP"
+//usage:        IF_FEATURE_IPCALC_FANCY(
+//usage:     "\n        -p,--prefix     Display the prefix for IP/NETMASK"
+//usage:     "\n        -h,--hostname   Display first resolved host name"
+//usage:     "\n        -s,--silent     Don't ever display error messages"
+//usage:        )
+//usage:        )
+//usage:        IF_NOT_FEATURE_IPCALC_LONG_OPTIONS(
+//usage:     "\n        -b      Display calculated broadcast address"
+//usage:     "\n        -n      Display calculated network address"
+//usage:     "\n        -m      Display default netmask for IP"
+//usage:        IF_FEATURE_IPCALC_FANCY(
+//usage:     "\n        -p      Display the prefix for IP/NETMASK"
+//usage:     "\n        -h      Display first resolved host name"
+//usage:     "\n        -s      Don't ever display error messages"
+//usage:        )
+//usage:        )
+
 #include "libbb.h"
 /* After libbb.h, because on some systems it needs other includes */
 #include <arpa/inet.h>