From 1eaf166d838a51242e1ef93cd806896dc37f30f2 Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 11 Jan 2006 00:41:50 +0000
Subject: [PATCH] add small 'netmsg' utility to send udp broadcast messages
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2893 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
package/busybox/config/networking/Config.in | 6 ++
package/busybox/patches/300-netmsg.patch | 102 ++++++++++++++++++++
2 files changed, 108 insertions(+)
create mode 100644 package/busybox/patches/300-netmsg.patch
diff --git a/package/busybox/config/networking/Config.in b/package/busybox/config/networking/Config.in
index 3699db9fc..996afb447 100644
--- a/package/busybox/config/networking/Config.in
+++ b/package/busybox/config/networking/Config.in
@@ -414,6 +414,12 @@ config BUSYBOX_CONFIG_NC
help
A simple Unix utility which reads and writes data across network
connections.
+
+config BUSYBOX_CONFIG_NETMSG
+ bool "netmsg"
+ default y
+ help
+ simple program for sending udp broadcast messages
config BUSYBOX_CONFIG_NETSTAT
bool "netstat"
diff --git a/package/busybox/patches/300-netmsg.patch b/package/busybox/patches/300-netmsg.patch
new file mode 100644
index 000000000..ac1a0aaaa
--- /dev/null
+++ b/package/busybox/patches/300-netmsg.patch
@@ -0,0 +1,102 @@
+diff -urN busybox.old/include/applets.h busybox.dev/include/applets.h
+--- busybox.old/include/applets.h 2006-01-11 01:32:47.302791000 +0100
++++ busybox.dev/include/applets.h 2006-01-11 01:33:18.744756250 +0100
+@@ -475,6 +475,9 @@
+ #ifdef CONFIG_NC
+ APPLET(nc, nc_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
+ #endif
++#ifdef CONFIG_NETMSG
++ APPLET_NOUSAGE("netmsg", netmsg_main, _BB_DIR_BIN, _BB_SUID_ALWAYS)
++#endif
+ #ifdef CONFIG_NETSTAT
+ APPLET(netstat, netstat_main, _BB_DIR_BIN, _BB_SUID_NEVER)
+ #endif
+diff -urN busybox.old/networking/Config.in busybox.dev/networking/Config.in
+--- busybox.old/networking/Config.in 2005-11-01 00:55:15.000000000 +0100
++++ busybox.dev/networking/Config.in 2006-01-11 01:33:18.744756250 +0100
+@@ -435,6 +435,12 @@
+ 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 -urN busybox.old/networking/Makefile.in busybox.dev/networking/Makefile.in
+--- busybox.old/networking/Makefile.in 2005-11-01 00:55:15.000000000 +0100
++++ busybox.dev/networking/Makefile.in 2006-01-11 01:34:02.939518250 +0100
+@@ -28,6 +28,7 @@
+ 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 -urN busybox.old/networking/netmsg.c busybox.dev/networking/netmsg.c
+--- busybox.old/networking/netmsg.c 1970-01-01 01:00:00.000000000 +0100
++++ busybox.dev/networking/netmsg.c 2006-01-11 01:33:18.748756500 +0100
+@@ -0,0 +1,58 @@
++#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, i;
++ struct sockaddr_in addr;
++ int optval = 1;
++ unsigned char buf[1001];
++
++ if (argc != 2) {
++ fprintf(stderr, "usage: %s \"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 = htonl(0xffffffff);
++ addr.sin_port = htons(0x1337);
++
++ memset(buf, 0, 1001);
++ buf[0] = 0xde;
++ buf[1] = 0xad;
++
++ strncpy(buf + 2, argv[1], 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);
++}
--
2.20.1