* 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 32768
static void
udp_client(int sockFD, const struct sockaddr_in* serverAddr)
{
char sendbuf[MAXLEN];
long status;
while (!feof(stdin)) {
status = fread(sendbuf, 1, MAXLEN, stdin);
if (status < 0) {
printf("fread(): %lx (%s)\n", status, strerror(status));
exit(5);
}
printf("trying to send %ld bytes...\n", status);
status = sendto(sockFD, sendbuf, status, 0,
(struct sockaddr*)serverAddr, sizeof(struct sockaddr_in));
if (status < 0) {
printf("sendto(): %lx (%s)\n", status, strerror(status));
exit(5);
}
}
}
int
main(int argc, char** argv)
{
long status;
int sockFD;
struct sockaddr_in serverAddr, clientAddr;
if (argc < 3) {
printf("usage: %s <IP-address> <port> [local-port]\n", argv[0]);
exit(5);
}
memset(&serverAddr, 0, sizeof(struct sockaddr_in));
serverAddr.sin_family = AF_INET;
serverAddr.sin_port = htons(atoi(argv[2]));
serverAddr.sin_addr.s_addr = inet_addr(argv[1]);
printf("addr=%lx port=%u\n", serverAddr.sin_addr.s_addr, ntohs(serverAddr.sin_port));
sockFD = socket(AF_INET, SOCK_DGRAM, 0);
if (argc > 3) {
memset(&clientAddr, 0, sizeof(struct sockaddr_in));
clientAddr.sin_family = AF_INET;
clientAddr.sin_port = htons(atoi(argv[3]));
printf("binding to port %u\n", ntohs(clientAddr.sin_port));
status = bind(sockFD, (struct sockaddr *)&clientAddr, sizeof(struct sockaddr_in));
if (status < 0) {
printf("bind(): %lx (%s)\n", status, strerror(status));
exit(5);
}
}
udp_client(sockFD, &serverAddr);
return 0;
}
