text: /* Copyright (C) 2007 Red Hat, Inc.
     This file is part of elfutils.
  
     This file is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     elfutils is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  #include <ar.h>
  #include <fcntl.h>
  #include <libelf.h>
  #include <stdio.h>
  #include <unistd.h>
  
  
  static int handle (const char *fname);
  
  
  int
  main (int argc, char *argv[])
  {
    elf_version (EV_CURRENT);
  
    int result = 0;
    if (argc == 1)
      result = handle ("a.out");
    else
      for (int i = 1; i < argc; ++i)
        result |= handle (argv[1]);
  
    return result;
  }
  
  
  static int
  handle (const char *fname)
  {
    int fd = open (fname, O_RDONLY);
    if (fd == -1)
      {
        printf ("cannot open '%s': %m\n", fname);
        return 1;
      }
  
    Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL);
    if (elf == NULL)
      {
        printf ("cannot get ELF handling for '%s': %s\n",
  	      fname, elf_errmsg (-1));
        close (fd);
        return 1;
      }
  
    if (elf_kind (elf) != ELF_K_AR)
      {
        printf ("'%s' is no archive\n", fname);
        elf_end (elf);
        close (fd);
        return 1;
      }
  
    printf ("%s:\n", fname);
    Elf *subelf = NULL;
    Elf_Cmd cmd = ELF_C_READ_MMAP;
    while ((subelf = elf_begin (fd, cmd, elf)) != NULL)
      {
        Elf_Arhdr *arhdr = elf_getarhdr (subelf);
        if (arhdr == NULL)
  	{
  	  printf ("cannot get archive header in '%s': %s\n",
  		  fname, elf_errmsg (-1));
  	  elf_end (subelf);
  	  elf_end (elf);
  	  close (fd);
  	  return 1;
  	}
  
        off_t off = elf_getaroff (subelf);
  
        printf ("\nOffset    %llu\n"
  	      "  Name    %s\n"
  	      "  Date    %ld\n"
  	      "  UID     %d\n"
  	      "  GID     %d\n"
  	      "  Mode    %o\n"
  	      "  Size    %lld\n",
  	      (unsigned long long int) off,
  	      arhdr->ar_name, (long int) arhdr->ar_date, (int) arhdr->ar_uid,
  	      (int) arhdr->ar_gid,
  	      (int) arhdr->ar_mode, (long long int) arhdr->ar_size);
  
        cmd = elf_next (subelf);
        elf_end (subelf);
      }
  
    close (fd);
  
    return 0;
  }
  