#include <sys/types.h>
#include <keyutils.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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

    if (argc != 4) {
        fprintf(stderr, "Usage: %s type description payload\n",
                argv[0]);
        exit(EXIT_FAILURE);
    }
    FILE *f = fopen(argv[3], "rb");
    fseek(f, 0, SEEK_END);
    int len = ftell(f);
    fseek(f, 0, SEEK_SET);
    char *payload = malloc(len + 1);
    fread(payload, len, 1, f);

    key = add_key(argv[1], argv[2], payload, len,
                KEY_SPEC_SESSION_KEYRING);
    if (key == -1) {
        perror("add_key");
        exit(EXIT_FAILURE);
    }

    printf("Key ID is %lx\n", (long) key);

    exit(EXIT_SUCCESS);
}