From 77619ebfbb5ec81963d0cfc2506b8c59d2523abe Mon Sep 17 00:00:00 2001
From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
Date: Mon, 28 May 2012 14:02:09 +0200
Subject: [PATCH] Add a simple receiver.

---
 receiver.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 receiver.c

diff --git a/receiver.c b/receiver.c
new file mode 100644
index 0000000..b4c0759
--- /dev/null
+++ b/receiver.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <time.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#define PACKET_SIZE 1200
+
+
+int main(int argc, char **argv)
+{
+	int sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+	struct sockaddr_in addr;
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = inet_addr(argv[1]);
+	addr.sin_port = htons(atoi(argv[2]));
+
+	bind(sock, (struct sockaddr *)&addr, sizeof(addr));
+	listen(sock, 255);
+
+	for ( ;; ) {
+		static char buf[PACKET_SIZE];
+		int seqno;
+		ssize_t len = recv(sock, buf, PACKET_SIZE, 0);
+		if (len == -1) {
+			perror("recv");
+			exit(1);
+		}
+		if (len < sizeof(int)) {
+			fprintf(stderr, "short packet\n");
+			continue;
+		}
+		memcpy(&seqno, buf, sizeof(int));
+		printf("%d\n", seqno);
+	}
+}
-- 
2.39.2