Copyright (C) 2006 OpenWrt.org diff -Nur busybox-1.1.1/include/applets.h busybox-1.1.1-owrt/include/applets.h --- busybox-1.1.1/include/applets.h 2006-04-01 18:26:21.000000000 +0200 +++ busybox-1.1.1-owrt/include/applets.h 2006-04-01 18:36:28.000000000 +0200 @@ -197,6 +197,7 @@ USE_MV(APPLET(mv, mv_main, _BB_DIR_BIN, _BB_SUID_NEVER)) USE_NAMEIF(APPLET(nameif, nameif_main, _BB_DIR_SBIN, _BB_SUID_NEVER)) USE_NC(APPLET(nc, nc_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) +USE_NETMSG(APPLET_NOUSAGE(netmsg, netmsg_main, _BB_DIR_BIN, _BB_SUID_ALWAYS)) USE_NETSTAT(APPLET(netstat, netstat_main, _BB_DIR_BIN, _BB_SUID_NEVER)) USE_NICE(APPLET(nice, nice_main, _BB_DIR_BIN, _BB_SUID_NEVER)) USE_NOHUP(APPLET(nohup, nohup_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) diff -Nur busybox-1.1.1/networking/Config.in busybox-1.1.1-owrt/networking/Config.in --- busybox-1.1.1/networking/Config.in 2006-03-22 22:16:19.000000000 +0100 +++ busybox-1.1.1-owrt/networking/Config.in 2006-04-01 18:35:32.000000000 +0200 @@ -451,6 +451,12 @@ help A simple Unix utility which reads and writes data across network connections. + +config CONFIG_NETMSG + bool "netmsg" + default n + help + simple program for sending udp broadcast messages config CONFIG_NC_GAPING_SECURITY_HOLE bool "gaping security hole" diff -Nur busybox-1.1.1/networking/Makefile.in busybox-1.1.1-owrt/networking/Makefile.in --- busybox-1.1.1/networking/Makefile.in 2006-03-22 22:16:19.000000000 +0100 +++ busybox-1.1.1-owrt/networking/Makefile.in 2006-04-01 18:35:32.000000000 +0200 @@ -30,6 +30,7 @@ NETWORKING-$(CONFIG_IPTUNNEL) += iptunnel.o NETWORKING-$(CONFIG_NAMEIF) += nameif.o NETWORKING-$(CONFIG_NC) += nc.o +NETWORKING-$(CONFIG_NETMSG) += netmsg.o NETWORKING-$(CONFIG_NETSTAT) += netstat.o NETWORKING-$(CONFIG_NSLOOKUP) += nslookup.o NETWORKING-$(CONFIG_PING) += ping.o diff -Nur busybox-1.1.1/networking/netmsg.c busybox-1.1.1-owrt/networking/netmsg.c --- busybox-1.1.1/networking/netmsg.c 1970-01-01 01:00:00.000000000 +0100 +++ busybox-1.1.1-owrt/networking/netmsg.c 2006-04-01 18:35:32.000000000 +0200 @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2006 Felix Fietkau + * + * This is free software, licensed under the GNU General Public License v2. + */ +#include +#include +#include +#include +#include +#include +#include +#include "busybox.h" + + +#ifndef CONFIG_NETMSG +int main(int argc, char **argv) +#else +int netmsg_main(int argc, char **argv) +#endif +{ + int s, i; + struct sockaddr_in addr; + int optval = 1; + unsigned char buf[1001]; + + if (argc != 3) { + fprintf(stderr, "usage: %s \"\"\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); +}