#include <stdio.h>

#include <stdio.h>
#include <stdlib.h>

main(argc, argv)

int argc;
char **argv;

{
char *buf;
int size;

if (argc != 2)
errx(1, "usage: %s #mb", *argv);

size = atoi(argv[1]);
if (size < 1)
errx(1, "size %d out of range", size);

size = size * (1024*1024);

buf = malloc(size);
if (buf == NULL)
err(1, "malloc");
bzero(buf, size);

printf("ok\n");
(void) getchar();
}