| 1 | --- a/include/applets.h |
| 2 | +++ b/include/applets.h |
| 3 | @@ -278,6 +278,7 @@ IF_MT(APPLET(mt, _BB_DIR_BIN, _BB_SUID_D |
| 4 | IF_MV(APPLET(mv, _BB_DIR_BIN, _BB_SUID_DROP)) |
| 5 | IF_NAMEIF(APPLET(nameif, _BB_DIR_SBIN, _BB_SUID_DROP)) |
| 6 | IF_NC(APPLET(nc, _BB_DIR_USR_BIN, _BB_SUID_DROP)) |
| 7 | +IF_NETMSG(APPLET(netmsg, _BB_DIR_BIN, _BB_SUID_REQUIRE)) |
| 8 | IF_NETSTAT(APPLET(netstat, _BB_DIR_BIN, _BB_SUID_DROP)) |
| 9 | IF_NICE(APPLET(nice, _BB_DIR_BIN, _BB_SUID_DROP)) |
| 10 | IF_NMETER(APPLET(nmeter, _BB_DIR_USR_BIN, _BB_SUID_DROP)) |
| 11 | --- a/include/usage.h |
| 12 | +++ b/include/usage.h |
| 13 | @@ -3101,6 +3101,9 @@ |
| 14 | |
| 15 | #endif |
| 16 | |
| 17 | +#define netmsg_trivial_usage NOUSAGE_STR |
| 18 | +#define netmsg_full_usage "" |
| 19 | + |
| 20 | #define netstat_trivial_usage \ |
| 21 | "[-laentuwxr"IF_FEATURE_NETSTAT_WIDE("W")IF_FEATURE_NETSTAT_PRG("p")"]" |
| 22 | #define netstat_full_usage "\n\n" \ |
| 23 | --- a/networking/Config.in |
| 24 | +++ b/networking/Config.in |
| 25 | @@ -617,6 +617,12 @@ config NC |
| 26 | A simple Unix utility which reads and writes data across network |
| 27 | connections. |
| 28 | |
| 29 | +config NETMSG |
| 30 | + bool "netmsg" |
| 31 | + default n |
| 32 | + help |
| 33 | + simple program for sending udp broadcast messages |
| 34 | + |
| 35 | config NC_SERVER |
| 36 | bool "Netcat server options (-l)" |
| 37 | default n |
| 38 | --- a/networking/Kbuild |
| 39 | +++ b/networking/Kbuild |
| 40 | @@ -25,6 +25,7 @@ lib-$(CONFIG_IP) += ip.o |
| 41 | lib-$(CONFIG_IPCALC) += ipcalc.o |
| 42 | lib-$(CONFIG_NAMEIF) += nameif.o |
| 43 | lib-$(CONFIG_NC) += nc.o |
| 44 | +lib-$(CONFIG_NETMSG) += netmsg.o |
| 45 | lib-$(CONFIG_NETSTAT) += netstat.o |
| 46 | lib-$(CONFIG_NSLOOKUP) += nslookup.o |
| 47 | lib-$(CONFIG_PING) += ping.o |
| 48 | --- /dev/null |
| 49 | +++ b/networking/netmsg.c |
| 50 | @@ -0,0 +1,63 @@ |
| 51 | +/* |
| 52 | + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> |
| 53 | + * |
| 54 | + * This is free software, licensed under the GNU General Public License v2. |
| 55 | + */ |
| 56 | +#include <sys/types.h> |
| 57 | +#include <sys/socket.h> |
| 58 | +#include <netinet/in.h> |
| 59 | +#include <netdb.h> |
| 60 | +#include <stdio.h> |
| 61 | +#include <stdlib.h> |
| 62 | +#include <string.h> |
| 63 | +#include "busybox.h" |
| 64 | + |
| 65 | + |
| 66 | +#ifndef CONFIG_NETMSG |
| 67 | +int main(int argc, char **argv) |
| 68 | +#else |
| 69 | +int netmsg_main(int argc, char **argv) |
| 70 | +#endif |
| 71 | +{ |
| 72 | + int s; |
| 73 | + struct sockaddr_in addr; |
| 74 | + int optval = 1; |
| 75 | + unsigned char buf[1001]; |
| 76 | + |
| 77 | + if (argc != 3) { |
| 78 | + fprintf(stderr, "usage: %s <ip> \"<message>\"\n", argv[0]); |
| 79 | + exit(1); |
| 80 | + } |
| 81 | + |
| 82 | + if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { |
| 83 | + perror("Opening socket"); |
| 84 | + exit(1); |
| 85 | + } |
| 86 | + |
| 87 | + memset(&addr, 0, sizeof(addr)); |
| 88 | + addr.sin_family = AF_INET; |
| 89 | + addr.sin_addr.s_addr = inet_addr(argv[1]); |
| 90 | + addr.sin_port = htons(0x1337); |
| 91 | + |
| 92 | + memset(buf, 0, 1001); |
| 93 | + buf[0] = 0xde; |
| 94 | + buf[1] = 0xad; |
| 95 | + |
| 96 | + strncpy(buf + 2, argv[2], 998); |
| 97 | + |
| 98 | + if (setsockopt (s, SOL_SOCKET, SO_BROADCAST, (caddr_t) &optval, sizeof (optval)) < 0) { |
| 99 | + perror("setsockopt()"); |
| 100 | + goto fail; |
| 101 | + } |
| 102 | + |
| 103 | + if (sendto(s, buf, 1001, 0, (struct sockaddr *) &addr, sizeof(addr)) < 0) { |
| 104 | + perror("sendto()"); |
| 105 | + goto fail; |
| 106 | + } |
| 107 | + |
| 108 | + return 0; |
| 109 | + |
| 110 | +fail: |
| 111 | + close(s); |
| 112 | + exit(1); |
| 113 | +} |
| 114 | |
