udhcpc: reuse string constant; remove unneeded memset(0)

[oweals/busybox.git] / networking / ether-wake.c

diff --git a/networking/ether-wake.c b/networking/ether-wake.c
index deeb68c096aeaebb1456afe6af9b1fde7fdf37fb..6a88279f4ee42d9705928604215e1c5a5c676f3d 100644 (file)
--- a/networking/ether-wake.c
+++ b/networking/ether-wake.c
@@ -2,7 +2,7 @@
 /*
  * ether-wake.c - Send a magic packet to wake up sleeping machines.
  *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  *
  * Author:      Donald Becker, http://www.scyld.com/"; http://www.scyld.com/wakeonlan.html
  * Busybox port: Christian Volkmann <haveaniceday@online.de>
@@ -64,14 +64,21 @@
  *   filter.  That configuration consumes more power.
 */
 
+//usage:#define ether_wake_trivial_usage
+//usage:       "[-b] [-i iface] [-p aa:bb:cc:dd[:ee:ff]] MAC"
+//usage:#define ether_wake_full_usage "\n\n"
+//usage:       "Send a magic packet to wake up sleeping machines.\n"
+//usage:       "MAC must be a station address (00:11:22:33:44:55) or\n"
+//usage:       "a hostname with a known 'ethers' entry.\n"
+//usage:     "\n       -b              Send wake-up packet to the broadcast address"
+//usage:     "\n       -i iface        Interface to use (default eth0)"
+//usage:     "\n       -p pass         Append four or six byte password PW to the packet"
 
+#include "libbb.h"
 #include <netpacket/packet.h>
-#include <net/ethernet.h>
 #include <netinet/ether.h>
 #include <linux/if.h>
 
-#include "libbb.h"
-
 /* Note: PF_INET, SOCK_DGRAM, IPPROTO_UDP would allow SIOCGIFHWADDR to
  * work as non-root, but we need SOCK_PACKET to specify the Ethernet
  * destination address.
@@ -189,12 +196,12 @@ int ether_wake_main(int argc UNUSED_PARAM, char **argv)
        unsigned flags;
        unsigned char wol_passwd[6];
        int wol_passwd_sz = 0;
-       int s;                                          /* Raw socket */
+       int s;  /* Raw socket */
        int pktsize;
        unsigned char outpack[1000];
 
        struct ether_addr eaddr;
-       struct whereto_t whereto;       /* who to wake up */
+       struct whereto_t whereto;  /* who to wake up */
 
        /* handle misc user options */
        opt_complementary = "=1";