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

#include <ecp/core.h>

#include "util.h"

static void usage(char *arg) {
    fprintf(stderr, "Usage: %s <pub> <priv>\n", arg);
    exit(1);
}

int main(int argc, char *argv[]) {
    ECPDHKey key;
    int rv;

    if (argc != 3) usage(argv[0]);

    rv = ecp_dhkey_gen(&key);
    if (rv) goto err;

    rv = ecp_util_save_key(argv[1], &key.public, NULL);
    if (rv) goto err;

    rv = ecp_util_save_key(argv[2], &key.public, &key.private);
    if (rv) goto err;

    return 0;

err:
    printf("ERR:%d\n", rv);
    return 1;
}