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

int
main(int argc, char* argv[]) {
    int len, i;
    unsigned short sum = 0;

    if (argc != 2) {
	fprintf(stderr, "Usage: gendata len\n");
	return 1;
    }
    len = atoi(argv[1]);
    srand(0xdeadbeaf);
    for(i = 0; i < len*16*1024; i++) {
	unsigned char c = rand()>>8;
        sum += c;
	fputc(c, stdout);
    }
    fprintf(stderr, "%04x\n", sum);
    return 0;
}