* Copyright 2006, Haiku, Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Oliver Tappe, zooey@hirschkaefer.de
*/
#include <arpa/inet.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#define MAXLEN 65536
static void
udp_server(int sockFD)
{
char buf[MAXLEN];
long status;
while (1) {
status = recvfrom(sockFD, buf, MAXLEN-1, 0, NULL, NULL);
if (status < 0) {
printf("recvfrom(): %lx (%s)\n", status, strerror(status));
exit(5);
}
buf[status] = 0;
printf("%s", buf);
}
}
int
main(int argc, char** argv)
{
long status;
int sockFD;
struct sockaddr_in localAddr;
if (argc < 2) {
printf("usage: %s <local-port>\n", argv[0]);
exit(5);
}
sockFD = socket(AF_INET, SOCK_DGRAM, 0);
memset(&localAddr, 0, sizeof(struct sockaddr_in));
localAddr.sin_family = AF_INET;
localAddr.sin_port = htons(atoi(argv[1]));
printf("binding to port %u\n", ntohs(localAddr.sin_port));
status = bind(sockFD, (struct sockaddr *)&localAddr, sizeof(struct sockaddr_in));
if (status < 0) {
printf("bind(): %lx (%s)\n", status, strerror(status));
exit(5);
}
udp_server(sockFD);
return 0;
}
