1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
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);
+}
|
