add small 'netmsg' utility to send udp broadcast messages

SVN-Revision: 2893

diff --git a/openwrt/package/busybox/config/networking/Config.in b/openwrt/package/busybox/config/networking/Config.in
index 3699db9fc2812634dae0db86e1a68fdfec340ee9..996afb4473c5088b757eca06d6a532b0bbd9df29 100644 (file)
--- a/openwrt/package/busybox/config/networking/Config.in
+++ b/openwrt/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/openwrt/package/busybox/patches/300-netmsg.patch b/openwrt/package/busybox/patches/300-netmsg.patch
new file mode 100644 (file)
index 0000000..ac1a0aa
--- /dev/null
+++ b/openwrt/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);
++}