Windows + Unix/linux Forkbomb

[Deepy 0]

Windows version

#include <stdio.h>
int fish(void) {
 fish();
 fish();
 printf("Hest");
 return 0;
}
int main(int argc, char *argv[])
{
fish();
return 0;
}

starts itself twice and then says Hest.

#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <stdio.h>

typedef enum {MODE_SLEEP,MODE_LOOP,MODE_FORK, MODE_FORKSHELL} MODE;


static void forkbomb_userfork (MODE mode)
{
pid_t pid = fork();
if (pid==-1){
fprintf (stderr,"Fork failed (%s)\n",strerror(errno));
}else if (pid == 0){
if (mode == MODE_SLEEP){
sleep(20);
}else if (mode == MODE_LOOP){
int k=0;
while (1) k++;
}else if (mode == MODE_FORKSHELL){
system ("/bin/false");
}
_exit (0);
}
}


int main (int argc, char *argv[])
{
if (argc != 4){
fprintf (stderr,"formboom 2 2 mode\n"
);
}else{
MODE mode;
int i;
if (strcmp(argv[3],"sleep")==0){
mode = MODE_SLEEP;
}else if (strcmp(argv[3],"loop")==0){
mode = MODE_LOOP;
}else if (strcmp(argv[3],"fork")==0){
mode = MODE_FORK;
}else if (strcmp(argv[3],"forkshell")==0){
mode = MODE_FORKSHELL;
}else{
fprintf (stderr,"Invalid mode\n");
exit (-1);
}
for (i=0; i<atoi(argv[2]); i++){
if (fork()==0){
if (setuid (i+1)==-1){
fprintf (stderr,"Can't setuid to uid %d (%s)\n",i+1
,strerror(errno));
}else{
       int j;
for (j=0; j<atoi(argv[1]); j++){
forkbomb_userfork (mode);
}
if (mode == MODE_FORK || mode == MODE_FORKSHELL){

int status;
while (wait(&status)!=-1) forkbomb_userfork(mode);
}
}
_exit (0);
}
}
system ("ps ax | wc -l");
printf ("All the process are running now\n");
printf ("Exit to end all processes\n");
system ("/bin/sh");
system ("killall forkbomb");
}
return 0;
}

UNIX compatible forkbomb, with helpfile to exit it easily