Programming

int rnd=open("/dev/urandom", O_RDONLY);
read(rnd, memory, bytes);
close(rnd);

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

int main(int argc, char *argv[])
{
        int w,h;
        int *mem=NULL;

        if(argc < 2)
        {
                fprintf(stderr, "Not enough arguments\n");
                return(1);
        }

        if(sscanf(argv[1], "%d*%d", &w, &h) != 2)
        {
                fprintf(stderr, "'%s' is not two numbers\n", argv[1]);
                return(1);
        }

        mem=(int *)malloc(sizeof(int)*w*h);

        {
                int rnd=open("/dev/urandom", O_RDONLY);
                read(rnd, mem, sizeof(int)*w*h);
                close(rnd);
        }

        fprintf(stderr, "%d*%d integers filled with random numbers\n", w,h);
        free(mem);
        return(0);
}