ether-wake: save a few more bytes of code

1 files changed, 7 insertions, 8 deletions

diff --git a/networking/ether-wake.c b/networking/ether-wake.c
index 71c3abfc3..ed41590aa 100644
--- a/networking/ether-wake.c
+++ b/networking/ether-wake.c
@@ -182,11 +182,10 @@ int ether_wake_main(int argc, char **argv);
 int ether_wake_main(int argc, char **argv)
 {
         const char *ifname = "eth0";
-        char *pass = NULL;
+        char *pass;
         unsigned flags;
         unsigned char wol_passwd[6];
         int wol_passwd_sz = 0;
-
         int s;                                          /* Raw socket */
         int pktsize;
         unsigned char outpack[1000];
@@ -195,23 +194,23 @@ int ether_wake_main(int argc, char **argv)
         struct whereto_t whereto;       /* who to wake up */
 
         /* handle misc user options */
+        opt_complementary = "=1";
         flags = getopt32(argc, argv, "bi:p:", &ifname, &pass);
-        if (optind == argc)
-                bb_show_usage();
-        if (pass)
+        if (flags & 4) /* -p */
                 wol_passwd_sz = get_wol_pw(pass, wol_passwd);
+        flags &= 1; /* we further interested only in -b [bcast] flag */
 
         /* create the raw socket */
         s = make_socket();
 
         /* now that we have a raw socket we can drop root */
-        xsetuid(getuid());
+        /* xsetuid(getuid()); - but save on code size... */
 
         /* look up the dest mac address */
         get_dest_addr(argv[optind], &eaddr);
 
         /* fill out the header of the packet */
-        pktsize = get_fill(outpack, &eaddr, flags & 1 /* OPT_BROADCAST */);
+        pktsize = get_fill(outpack, &eaddr, flags /* & 1 OPT_BROADCAST */);
 
         bb_debug_dump_packet(outpack, pktsize);
 
@@ -249,7 +248,7 @@ int ether_wake_main(int argc, char **argv)
         bb_debug_dump_packet(outpack, pktsize);
 
         /* This is necessary for broadcasts to work */
-        if (flags & 1 /* OPT_BROADCAST */) {
+        if (flags /* & 1 OPT_BROADCAST */) {
                 if (setsockopt_broadcast(s) != 0)
                         bb_perror_msg("SO_BROADCAST");
         }