dhcpd: write lease file on exit

[oweals/busybox.git] / networking / ipcalc.c

diff --git a/networking/ipcalc.c b/networking/ipcalc.c
index d4aa885c6c5a36f0c7977da71c54974ce350d5d2..3c8b8bfc910026c270161fd829178d61f7c623f6 100644 (file)
--- a/networking/ipcalc.c
+++ b/networking/ipcalc.c
@@ -11,13 +11,39 @@
  *
  * 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:       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>
 
-#define CLASS_A_NETMASK        ntohl(0xFF000000)
-#define CLASS_B_NETMASK        ntohl(0xFFFF0000)
-#define CLASS_C_NETMASK        ntohl(0xFFFFFF00)
+#define CLASS_A_NETMASK ntohl(0xFF000000)
+#define CLASS_B_NETMASK ntohl(0xFFFF0000)
+#define CLASS_C_NETMASK ntohl(0xFFFFFF00)
 
 static unsigned long get_netmask(unsigned long ipaddr)
 {