xz: omit explicit \0 from HEADER_MAGIC

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

diff --git a/networking/ether-wake.c b/networking/ether-wake.c
index 59f40535ce9ec9bef06fc44cd31a20f66b965ac0..bf09cd529d0e1ef2926f6d7687d0c53097194d24 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>
@@ -49,9 +49,9 @@
  *     Copyright 1999-2003 Donald Becker and Scyld Computing Corporation.
  *
  *     The author may be reached as becker@scyld, or C/O
- *      Scyld Computing Corporation
- *      914 Bay Ridge Road, Suite 220
- *      Annapolis MD 21403
+ *     Scyld Computing Corporation
+ *     914 Bay Ridge Road, Suite 220
+ *     Annapolis MD 21403
  *
  *   Notes:
  *   On some systems dropping root capability allows the process to be
@@ -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.
@@ -106,15 +113,14 @@ void bb_debug_dump_packet(unsigned char *outpack, int pktsize)
  *    Host name
  *    IP address string
  *    MAC address string
-*/
+ */
 static void get_dest_addr(const char *hostid, struct ether_addr *eaddr)
 {
        struct ether_addr *eap;
 
-       eap = ether_aton(hostid);
+       eap = ether_aton_r(hostid, eaddr);
        if (eap) {
-               *eaddr = *eap;
-               bb_debug_msg("The target station address is %s\n\n", ether_ntoa(eaddr));
+               bb_debug_msg("The target station address is %s\n\n", ether_ntoa(eap));
 #if !defined(__UCLIBC_MAJOR__) \
  || __UCLIBC_MAJOR__ > 0 \
  || __UCLIBC_MINOR__ > 9 \
@@ -122,8 +128,9 @@ static void get_dest_addr(const char *hostid, struct ether_addr *eaddr)
        } else if (ether_hostton(hostid, eaddr) == 0) {
                bb_debug_msg("Station address for hostname %s is %s\n\n", hostid, ether_ntoa(eaddr));
 #endif
-       } else
+       } else {
                bb_show_usage();
+       }
 }
 
 static int get_fill(unsigned char *pkt, struct ether_addr *eaddr, int broadcast)
@@ -167,7 +174,7 @@ static int get_wol_pw(const char *ethoptarg, unsigned char *wol_passwd)
                byte_cnt = sscanf(ethoptarg, "%u.%u.%u.%u",
                                  &passwd[0], &passwd[1], &passwd[2], &passwd[3]);
        if (byte_cnt < 4) {
-               bb_error_msg("cannot read Wake-On-LAN pass");
+               bb_error_msg("can't read Wake-On-LAN pass");
                return 0;
        }
 // TODO: check invalid numbers >255??
@@ -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";
@@ -231,9 +238,9 @@ int ether_wake_main(int argc UNUSED_PARAM, char **argv)
                {
                        unsigned char *hwaddr = if_hwaddr.ifr_hwaddr.sa_data;
                        printf("The hardware address (SIOCGIFHWADDR) of %s is type %d  "
-                                  "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n\n", ifname,
-                                  if_hwaddr.ifr_hwaddr.sa_family, hwaddr[0], hwaddr[1],
-                                  hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5]);
+                               "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n\n", ifname,
+                               if_hwaddr.ifr_hwaddr.sa_family, hwaddr[0], hwaddr[1],
+                               hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5]);
                }
 # endif
        }