#include <fcntl.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include "nvme_ioctl.h"

int main(int argc, char **argv) {
    int fd, i;
    nvme_getlog_ioctl_t ioc;

    if (argc < 3) { fprintf(stderr, "usage: %s /dev/nvmeN <lid>\n", argv[0]); return 1; }
    fd = open(argv[1], O_RDONLY);
    if (fd < 0) { perror("open"); return 1; }

    memset(&ioc, 0, sizeof(ioc));
    ioc.lid = (uint8_t)strtoul(argv[2], NULL, 0);
    ioc.ret_size = 4096;

    if (ioctl(fd, NVMEIOCGETLOG, &ioc) != 0) { perror("ioctl"); return 1; }

    printf("status=0x%04x lid=0x%02x ret_size=%u\n", ioc.status, ioc.lid, ioc.ret_size);
    for (i = 0; i < (int)ioc.ret_size; i++) {
        printf("%02x", ((unsigned char *)&ioc.info)[i]);
        if ((i + 1) % 32 == 0) printf("\n");
    }
    printf("\n");
    close(fd);
    return 0;
}