kernel-utsname.c

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