#include "config.h"

#include <fcntl.h>

#include <libelf.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <sys/stat.h>

#include <sys/types.h>

int main (int argc, const char **argv)

{

  int fd;

  Elf *elf;

  size_t phnum;

  if (argc != 2)

    {

      fprintf (stderr, "usage: %s FILE\n", argv[0]);

      return EXIT_FAILURE;

    }

  fd = open (argv[1], O_RDONLY);

  if (fd == -1)

    {

      perror ("open");

      return EXIT_FAILURE;

    }

  elf_version (EV_CURRENT);

  elf = elf_begin (fd, ELF_C_READ, NULL);

  if (!elf)

    {

      fprintf (stderr, "elf_begin: %s\n", elf_errmsg (-1));

      return EXIT_FAILURE;

    }

  if (elf_getphdrnum (elf, &phnum))

    {

      fprintf(stderr, "elf_getphdrnum: %s\n", elf_errmsg (-1));

      return EXIT_FAILURE;

    }

  printf("%zu\n", phnum);

  elf_end (elf);

  close (fd);

  return EXIT_SUCCESS;

}