Index: busybox-1.4.2/include/applets.h =================================================================== --- busybox-1.4.2.orig/include/applets.h 2007-06-04 13:21:32.210079992 +0200 +++ busybox-1.4.2/include/applets.h 2007-06-04 13:21:34.188779184 +0200 @@ -209,6 +209,7 @@ USE_MV(APPLET(mv, _BB_DIR_BIN, _BB_SUID_NEVER)) USE_NAMEIF(APPLET(nameif, _BB_DIR_SBIN, _BB_SUID_NEVER)) USE_NC(APPLET(nc, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) +USE_NETMSG(APPLET_NOUSAGE(netmsg, netmsg, _BB_DIR_BIN, _BB_SUID_ALWAYS)) USE_NETSTAT(APPLET(netstat, _BB_DIR_BIN, _BB_SUID_NEVER)) USE_NICE(APPLET(nice, _BB_DIR_BIN, _BB_SUID_NEVER)) USE_NMETER(APPLET(nmeter, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) Index: busybox-1.4.2/networking/Config.in =================================================================== --- busybox-1.4.2.orig/networking/Config.in 2007-06-04 13:21:32.216079080 +0200 +++ busybox-1.4.2/networking/Config.in 2007-06-04 13:21:34.188779184 +0200 @@ -458,6 +458,12 @@ help A simple Unix utility which reads and writes data across network connections. + +config NETMSG + bool "netmsg" + default n + help + simple program for sending udp broadcast messages config NC_SERVER bool "Netcat server options (-lp)" Index: busybox-1.4.2/networking/Kbuild =================================================================== --- busybox-1.4.2.orig/networking/Kbuild 2007-06-04 13:21:32.221078320 +0200 +++ busybox-1.4.2/networking/Kbuild 2007-06-04 13:21:34.188779184 +0200 @@ -27,6 +27,7 @@ lib-$(CONFIG_IPTUNNEL) += iptunnel.o lib-$(CONFIG_NAMEIF) += nameif.o lib-$(CONFIG_NC) += nc.o +lib-$(CONFIG_NETMSG) += netmsg.o lib-$(CONFIG_NETSTAT) += netstat.o lib-$(CONFIG_NSLOOKUP) += nslookup.o lib-$(CONFIG_PING) += ping.o Index: busybox-1.4.2/networking/netmsg.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ busybox-1.4.2/networking/netmsg.c 2007-06-04 13:21:34.188779184 +0200 @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> + * + * This is free software, licensed under the GNU General Public License v2. + */ +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netdb.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "busybox.h" + + +#ifndef CONFIG_NETMSG +int main(int argc, char **argv) +#else +int netmsg_main(int argc, char **argv) +#endif +{ + int s; + struct sockaddr_in addr; + int optval = 1; + unsigned char buf[1001]; + + if (argc != 3) { + fprintf(stderr, "usage: %s <ip> \"<message>\"\n", argv[0]); + exit(1); + } + + if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { + perror("Opening socket"); + exit(1); + } + + memset(&addr, 0, sizeof(addr)); + addr.sin_family = AF_INET; + addr.sin_addr.s_addr = inet_addr(argv[1]); + addr.sin_port = htons(0x1337); + + memset(buf, 0, 1001); + buf[0] = 0xde; + buf[1] = 0xad; + + strncpy(buf + 2, argv[2], 998); + + if (setsockopt (s, SOL_SOCKET, SO_BROADCAST, (caddr_t) &optval, sizeof (optval)) < 0) { + perror("setsockopt()"); + goto fail; + } + + if (sendto(s, buf, 1001, 0, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + perror("sendto()"); + goto fail; + } + + return 0; + +fail: + close(s); + exit(1); +}