2 files changed, 33 insertions, 0 deletions

diff --git a/include/applets.h b/include/applets.h
index a9f93cc49..e8bcb0e4b 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -254,6 +254,9 @@
 #ifdef CONFIG_IP
         APPLET(ip, ip_main, _BB_DIR_BIN, _BB_SUID_NEVER)
 #endif
+#ifdef CONFIG_IPCALC
+        APPLET(ipcalc, ipcalc_main, _BB_DIR_BIN, _BB_SUID_NEVER)
+#endif
 #ifdef CONFIG_KILL
         APPLET(kill, kill_main, _BB_DIR_BIN, _BB_SUID_NEVER)
 #endif
diff --git a/include/usage.h b/include/usage.h
index c140a88ba..b741360cf 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -982,6 +982,36 @@
 #define ip_full_usage \
         "not written yet"
 
+#ifndef CONFIG_FEATURE_IPCALC_FANCY
+#define ipcalc_trivial_usage \
+        "[--broadcast] [--netmask] [--network] ipaddr <netmask>"
+
+#define ipcalc_full_usage \
+        "Calculate IP network settings from a IP address\n\n" \
+        "Options:\n" \
+        "\t-b\t--broadcast\tDisplay calculated broadcast address.\n" \
+        "\t-n\t--netmask\tDisplay default netmask for IP.\n" \
+        "\t-w\t--network\tDisplay calculated network address." 
+#else
+#define ipcalc_trivial_usage \
+        "[OPTION]... ipaddr <netmask>"
+
+#define ipcalc_full_usage \
+        "Calculate IP network settings from a IP address\n\n" \
+        "Options:\n" \
+        "\t-b\t--broadcast\tDisplay calculated broadcast address.\n" \
+        "\t-n\t--netmask\tDisplay default netmask for IP.\n" \
+        "\t-w\t--network\tDisplay calculated network address.\n" \
+        "\t-h\t--hostname\tDisplay first resolved host name.\n" \
+        "\t-s\t--silent\tDon't ever display error messages." 
+#endif
+
+#define ipcalc_notes_usage \
+        "ipcalc provides a simple way to calculate IP information for\n" \
+        "a host. The various options specify what information ipcalc\n" \
+        "should display on standard out. Multiple options may be\n" \
+        "specified.\n"
+
 #define kill_trivial_usage \
         "[-signal] process-id [process-id ...]"
 #define kill_full_usage \