X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=networking%2Fether-wake.c;h=bf09cd529d0e1ef2926f6d7687d0c53097194d24;hb=04f296b28a4927efffced38170d92134982566a6;hp=59f40535ce9ec9bef06fc44cd31a20f66b965ac0;hpb=22cbfbd9964321ace99d1a6a31ee1ba685202c55;p=oweals%2Fbusybox.git diff --git a/networking/ether-wake.c b/networking/ether-wake.c index 59f40535c..bf09cd529 100644 --- 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 @@ -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 -#include #include #include -#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 }