zcip: simplify code

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

diff --git a/networking/arping.c b/networking/arping.c
index 6f6b59cfba73be911be31bd9b4459ed1464d61a5..dbfd75ef52da712393cca1c81c13d8cb31a84560 100644 (file)
--- a/networking/arping.c
+++ b/networking/arping.c
@@ -6,6 +6,22 @@
  * Busybox port: Nick Fedchik <nick@fedchik.org.ua>
  */
 
+//usage:#define arping_trivial_usage
+//usage:       "[-fqbDUA] [-c CNT] [-w TIMEOUT] [-I IFACE] [-s SRC_IP] DST_IP"
+//usage:#define arping_full_usage "\n\n"
+//usage:       "Send ARP requests/replies\n"
+//usage:     "\n       -f              Quit on first ARP reply"
+//usage:     "\n       -q              Quiet"
+//usage:     "\n       -b              Keep broadcasting, don't go unicast"
+//usage:     "\n       -D              Duplicated address detection mode"
+//usage:     "\n       -U              Unsolicited ARP mode, update your neighbors"
+//usage:     "\n       -A              ARP answer mode, update your neighbors"
+//usage:     "\n       -c N            Stop after sending N ARP requests"
+//usage:     "\n       -w TIMEOUT      Time to wait for ARP reply, seconds"
+//usage:     "\n       -I IFACE        Interface to use (default eth0)"
+//usage:     "\n       -s SRC_IP       Sender IP address"
+//usage:     "\n       DST_IP          Target IP address"
+
 #include <arpa/inet.h>
 #include <net/if.h>
 #include <netinet/ether.h>
@@ -268,7 +284,6 @@ int arping_main(int argc UNUSED_PARAM, char **argv)
        // Need to remove SUID_NEVER from applets.h for this to work
        //xsetuid(getuid());
 
-       err_str = xasprintf("interface %s %%s", device);
        {
                unsigned opt;
                char *str_timeout;
@@ -286,7 +301,7 @@ int arping_main(int argc UNUSED_PARAM, char **argv)
        }
 
        target = argv[optind];
-
+       err_str = xasprintf("interface %s %%s", device);
        xfunc_error_retval = 2;
 
        {