kernel-utsname.c

   1 /*  Copyright (C) 2008-2009  Ksplice, Inc.
   2  *  Authors: Tim Abbott, Anders Kaseorg, Jeff Arnold
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License, version 2.
   6  *
   7  *  This program is distributed in the hope that it will be useful,
   8  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *  GNU General Public License for more details.
  11  *
  12  *  You should have received a copy of the GNU General Public License
  13  *  along with this program; if not, write to the Free Software
  14  *  Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  15  *  02110-1301, USA.
  16  */
  17
  18 #define _GNU_SOURCE
  19 #include "objcommon.h"
  20 #include <stdio.h>
  21
  22 static void print_section(struct superbfd *sbfd, const char *fieldname,
  23                           const char *sectname)
  24 {
  25         asection *sect = bfd_get_section_by_name(sbfd->abfd, sectname);
  26         assert(sect != NULL);
  27         struct supersect *ss = fetch_supersect(sbfd, sect);
  28         printf("%s: %s\n", fieldname, read_string(ss, ss->contents.data));
  29 }
  30
  31 int main(int argc, char *argv[])
  32 {
  33         bfd *ibfd;
  34
  35         assert(argc >= 1);
  36         bfd_init();
  37         ibfd = bfd_openr(argv[1], NULL);
  38         assert(ibfd);
  39
  40         char **matching;
  41         assert(bfd_check_format_matches(ibfd, bfd_object, &matching));
  42
  43         struct superbfd *sbfd = fetch_superbfd(ibfd);
  44
  45         print_section(sbfd, "Sysname", ".uts_sysname");
  46         print_section(sbfd, "Machine", ".uts_machine");
  47         print_section(sbfd, "Release", ".uts_release");
  48         print_section(sbfd, "Version", ".uts_version");
  49         return 0;
  50 }