test-fork.c

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

int main(int argc, char **argv)
{
	int i,limit;
	int status;
	pid_t child;

	limit = atoi(argv[1]);
	// child = calloc(limit, sizeof(pid_t));
	// if(!child) err(1, "fuck malloc");
	for(i=0;i<limit;i++) {
		child = fork();
		if(!child) {
			_exit(0);
		} else if(child==-1) {
			err(1, "my os ran out of pids");
		}
		waitpid(child, &status, WEXITED);
		if(status)
			err(1, "fuck waitpid");
	}
			
}