5d2a9d2a3a
The "new style" busybox applet approach moves all config and build definitions related to an applet to its .c file. This makes the patches easier to maintain, as they only add new files to the busybox build directory, without modifying BusyBox files. Signed-off-by: Magnus Kroken <mkroken@gmail.com> Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
79 lines
1.6 KiB
Diff
79 lines
1.6 KiB
Diff
--- /dev/null
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+++ b/networking/netmsg.c
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@@ -0,0 +1,76 @@
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+/*
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+ * Copyright (C) 2006 Felix Fietkau <nbd@nbd.name>
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+ *
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+ * This is free software, licensed under the GNU General Public License v2.
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+ */
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+
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+//config:config NETMSG
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+//config: bool "netmsg"
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+//config: default n
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+//config: help
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+//config: simple program for sending udp broadcast messages
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+
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+//applet:IF_NETMSG(APPLET(netmsg, BB_DIR_BIN, BB_SUID_REQUIRE))
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+
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+//kbuild:lib-$(CONFIG_NETMSG) += netmsg.o
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+
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+//usage:#define netmsg_trivial_usage NOUSAGE_STR
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+//usage:#define netmsg_full_usage ""
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+
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+#include <sys/types.h>
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+#include <sys/socket.h>
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+#include <netinet/in.h>
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+#include <netdb.h>
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <string.h>
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+#include "busybox.h"
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+
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+#ifndef CONFIG_NETMSG
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+int main(int argc, char **argv)
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+#else
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+int netmsg_main(int argc, char **argv)
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+#endif
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+{
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+ int s;
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+ struct sockaddr_in addr;
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+ int optval = 1;
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+ unsigned char buf[1001];
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+
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+ if (argc != 3) {
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+ fprintf(stderr, "usage: %s <ip> \"<message>\"\n", argv[0]);
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+ exit(1);
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+ }
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+
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+ if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
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+ perror("Opening socket");
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+ exit(1);
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+ }
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+
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+ memset(&addr, 0, sizeof(addr));
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+ addr.sin_family = AF_INET;
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+ addr.sin_addr.s_addr = inet_addr(argv[1]);
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+ addr.sin_port = htons(0x1337);
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+
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+ memset(buf, 0, 1001);
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+ buf[0] = 0xde;
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+ buf[1] = 0xad;
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+
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+ strncpy(buf + 2, argv[2], 998);
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+
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+ if (setsockopt (s, SOL_SOCKET, SO_BROADCAST, (caddr_t) &optval, sizeof (optval)) < 0) {
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+ perror("setsockopt()");
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+ goto fail;
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+ }
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+
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+ if (sendto(s, buf, 1001, 0, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
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+ perror("sendto()");
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+ goto fail;
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+ }
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+
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+ return 0;
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+
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+fail:
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+ close(s);
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+ exit(1);
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+}
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