package/busybox/patches/300-netmsg.patch

   1 diff --git a/include/applets.src.h b/include/applets.src.h
   2 index f4fab53..f97f2d8 100644
   3 --- a/include/applets.src.h
   4 +++ b/include/applets.src.h
   5 @@ -256,6 +256,7 @@ IF_MT(APPLET(mt, _BB_DIR_BIN, _BB_SUID_DROP))
   6  IF_MV(APPLET(mv, _BB_DIR_BIN, _BB_SUID_DROP))
   7  IF_NAMEIF(APPLET(nameif, _BB_DIR_SBIN, _BB_SUID_DROP))
   8  IF_NC(APPLET(nc, _BB_DIR_USR_BIN, _BB_SUID_DROP))
   9 +IF_NETMSG(APPLET(netmsg, _BB_DIR_BIN, _BB_SUID_REQUIRE))
  10  IF_NETSTAT(APPLET(netstat, _BB_DIR_BIN, _BB_SUID_DROP))
  11  IF_NICE(APPLET(nice, _BB_DIR_BIN, _BB_SUID_DROP))
  12  IF_NMETER(APPLET(nmeter, _BB_DIR_USR_BIN, _BB_SUID_DROP))
  13 diff --git a/include/usage.src.h b/include/usage.src.h
  14 index 30fef24..ac78992 100644
  15 --- a/include/usage.src.h
  16 +++ b/include/usage.src.h
  17 @@ -1,3 +1,4 @@
  18 +
  19  /* vi: set sw=8 ts=8: */
  20  /*
  21   * This file suffers from chronically incorrect tabification
  22 @@ -2706,6 +2707,9 @@ INSERT
  23         " or\n" \
  24         "$ nameif -c /etc/my_mactab_file\n" \
  25
  26 +#define netmsg_trivial_usage NOUSAGE_STR
  27 +#define netmsg_full_usage ""
  28 +
  29  #define nmeter_trivial_usage \
  30         "format_string"
  31  #define nmeter_full_usage "\n\n" \
  32 diff --git a/networking/Config.src b/networking/Config.src
  33 index 6dd7df7..4682dd3 100644
  34 --- a/networking/Config.src
  35 +++ b/networking/Config.src
  36 @@ -640,6 +640,12 @@ config FEATURE_NAMEIF_EXTENDED
  37             new_interface_name  mac=00:80:C8:38:91:B5
  38             new_interface_name  00:80:C8:38:91:B5
  39
  40 +config NETMSG
  41 +       bool "netmsg"
  42 +       default n
  43 +       help
  44 +         simple program for sending udp broadcast messages
  45 +
  46  config NETSTAT
  47         bool "netstat"
  48         default y
  49 diff --git a/networking/Kbuild.src b/networking/Kbuild.src
  50 index f41a2df..6070a40 100644
  51 --- a/networking/Kbuild.src
  52 +++ b/networking/Kbuild.src
  53 @@ -27,6 +27,7 @@ lib-$(CONFIG_IP)           += ip.o
  54  lib-$(CONFIG_IPCALC)       += ipcalc.o
  55  lib-$(CONFIG_NAMEIF)       += nameif.o
  56  lib-$(CONFIG_NC)           += nc.o
  57 +lib-$(CONFIG_NETMSG)       += netmsg.o
  58  lib-$(CONFIG_NETSTAT)      += netstat.o
  59  lib-$(CONFIG_NSLOOKUP)     += nslookup.o
  60  lib-$(CONFIG_NTPD)         += ntpd.o
  61 diff --git a/networking/netmsg.c b/networking/netmsg.c
  62 new file mode 100644
  63 index 0000000..43aba0d
  64 --- /dev/null
  65 +++ b/networking/netmsg.c
  66 @@ -0,0 +1,63 @@
  67 +/*
  68 + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
  69 + *
  70 + * This is free software, licensed under the GNU General Public License v2.
  71 + */
  72 +#include <sys/types.h>
  73 +#include <sys/socket.h>
  74 +#include <netinet/in.h>
  75 +#include <netdb.h>
  76 +#include <stdio.h>
  77 +#include <stdlib.h>
  78 +#include <string.h>
  79 +#include "busybox.h"
  80 +
  81 +
  82 +#ifndef CONFIG_NETMSG
  83 +int main(int argc, char **argv)
  84 +#else
  85 +int netmsg_main(int argc, char **argv)
  86 +#endif
  87 +{
  88 +       int s;
  89 +       struct sockaddr_in addr;
  90 +       int optval = 1;
  91 +       unsigned char buf[1001];
  92 +
  93 +       if (argc != 3) {
  94 +               fprintf(stderr, "usage: %s <ip> \"<message>\"\n", argv[0]);
  95 +               exit(1);
  96 +       }
  97 +
  98 +       if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
  99 +               perror("Opening socket");
 100 +               exit(1);
 101 +       }
 102 +
 103 +       memset(&addr, 0, sizeof(addr));
 104 +       addr.sin_family = AF_INET;
 105 +       addr.sin_addr.s_addr = inet_addr(argv[1]);
 106 +       addr.sin_port = htons(0x1337);
 107 +
 108 +       memset(buf, 0, 1001);
 109 +       buf[0] = 0xde;
 110 +       buf[1] = 0xad;
 111 +
 112 +       strncpy(buf + 2, argv[2], 998);
 113 +
 114 +       if (setsockopt (s, SOL_SOCKET, SO_BROADCAST, (caddr_t) &optval, sizeof (optval)) < 0) {
 115 +               perror("setsockopt()");
 116 +               goto fail;
 117 +       }
 118 +
 119 +       if (sendto(s, buf, 1001, 0, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
 120 +               perror("sendto()");
 121 +               goto fail;
 122 +       }
 123 +
 124 +       return 0;
 125 +
 126 +fail:
 127 +       close(s);
 128 +       exit(1);
 129 +}