package/busybox/patches/300-netmsg.patch

   1 --- a/include/applets.src.h
   2 +++ b/include/applets.src.h
   3 @@ -278,6 +278,7 @@ IF_MT(APPLET(mt, _BB_DIR_BIN, _BB_SUID_D
   4  IF_MV(APPLET(mv, _BB_DIR_BIN, _BB_SUID_DROP))
   5  IF_NAMEIF(APPLET(nameif, _BB_DIR_SBIN, _BB_SUID_DROP))
   6  IF_NC(APPLET(nc, _BB_DIR_USR_BIN, _BB_SUID_DROP))
   7 +IF_NETMSG(APPLET(netmsg, _BB_DIR_BIN, _BB_SUID_REQUIRE))
   8  IF_NETSTAT(APPLET(netstat, _BB_DIR_BIN, _BB_SUID_DROP))
   9  IF_NICE(APPLET(nice, _BB_DIR_BIN, _BB_SUID_DROP))
  10  IF_NMETER(APPLET(nmeter, _BB_DIR_USR_BIN, _BB_SUID_DROP))
  11 --- a/networking/Config.src
  12 +++ b/networking/Config.src
  13 @@ -623,6 +623,12 @@ config FEATURE_NAMEIF_EXTENDED
  14             new_interface_name  mac=00:80:C8:38:91:B5
  15             new_interface_name  00:80:C8:38:91:B5
  16
  17 +config NETMSG
  18 +       bool "netmsg"
  19 +       default n
  20 +       help
  21 +         simple program for sending udp broadcast messages
  22 +
  23  config NETSTAT
  24         bool "netstat"
  25         default y
  26 --- a/networking/Kbuild.src
  27 +++ b/networking/Kbuild.src
  28 @@ -27,6 +27,7 @@ lib-$(CONFIG_IP)           += ip.o
  29  lib-$(CONFIG_IPCALC)       += ipcalc.o
  30  lib-$(CONFIG_NAMEIF)       += nameif.o
  31  lib-$(CONFIG_NC)           += nc.o
  32 +lib-$(CONFIG_NETMSG)       += netmsg.o
  33  lib-$(CONFIG_NETSTAT)      += netstat.o
  34  lib-$(CONFIG_NSLOOKUP)     += nslookup.o
  35  lib-$(CONFIG_NTPD)         += ntpd.o
  36 --- /dev/null
  37 +++ b/networking/netmsg.c
  38 @@ -0,0 +1,63 @@
  39 +/*
  40 + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
  41 + *
  42 + * This is free software, licensed under the GNU General Public License v2.
  43 + */
  44 +#include <sys/types.h>
  45 +#include <sys/socket.h>
  46 +#include <netinet/in.h>
  47 +#include <netdb.h>
  48 +#include <stdio.h>
  49 +#include <stdlib.h>
  50 +#include <string.h>
  51 +#include "busybox.h"
  52 +
  53 +
  54 +#ifndef CONFIG_NETMSG
  55 +int main(int argc, char **argv)
  56 +#else
  57 +int netmsg_main(int argc, char **argv)
  58 +#endif
  59 +{
  60 +       int s;
  61 +       struct sockaddr_in addr;
  62 +       int optval = 1;
  63 +       unsigned char buf[1001];
  64 +
  65 +       if (argc != 3) {
  66 +               fprintf(stderr, "usage: %s <ip> \"<message>\"\n", argv[0]);
  67 +               exit(1);
  68 +       }
  69 +
  70 +       if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
  71 +               perror("Opening socket");
  72 +               exit(1);
  73 +       }
  74 +
  75 +       memset(&addr, 0, sizeof(addr));
  76 +       addr.sin_family = AF_INET;
  77 +       addr.sin_addr.s_addr = inet_addr(argv[1]);
  78 +       addr.sin_port = htons(0x1337);
  79 +
  80 +       memset(buf, 0, 1001);
  81 +       buf[0] = 0xde;
  82 +       buf[1] = 0xad;
  83 +
  84 +       strncpy(buf + 2, argv[2], 998);
  85 +
  86 +       if (setsockopt (s, SOL_SOCKET, SO_BROADCAST, (caddr_t) &optval, sizeof (optval)) < 0) {
  87 +               perror("setsockopt()");
  88 +               goto fail;
  89 +       }
  90 +
  91 +       if (sendto(s, buf, 1001, 0, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
  92 +               perror("sendto()");
  93 +               goto fail;
  94 +       }
  95 +
  96 +       return 0;
  97 +
  98 +fail:
  99 +       close(s);
 100 +       exit(1);
 101 +}
 102 --- a/include/usage.src.h
 103 +++ b/include/usage.src.h
 104 @@ -1,3 +1,4 @@
 105 +
 106  /* vi: set sw=8 ts=8: */
 107  /*
 108   * This file suffers from chronically incorrect tabification
 109 @@ -2961,6 +2962,9 @@ INSERT
 110         " or\n" \
 111         "$ nameif -c /etc/my_mactab_file\n" \
 112
 113 +#define netmsg_trivial_usage NOUSAGE_STR
 114 +#define netmsg_full_usage ""
 115 +
 116  #define netstat_trivial_usage \
 117         "[-laentuwxr"IF_FEATURE_NETSTAT_WIDE("W")IF_FEATURE_NETSTAT_PRG("p")"]"
 118  #define netstat_full_usage "\n\n" \