/* grub-mkrelpath.c - make a system path relative to its root */ /* * GRUB -- GRand Unified Bootloader * Copyright (C) 2009 Free Software Foundation, Inc. * * GRUB 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. * * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. */ #include <grub/util/misc.h> #include <grub/i18n.h> #include <getopt.h> #include "progname.h" static struct option options[] = { {"help", no_argument, 0, 'h'}, {"version", no_argument, 0, 'V'}, }; static void usage (int status) { if (status) fprintf (stderr, "Try ``%s --help'' for more information.\n", program_name); else printf ("\ Usage: %s [OPTIONS] PATH\n\ \n\ Make a system path relative to it's root.\n\ \n\ Options:\n\ -h, --help display this message and exit\n\ -V, --version print version information and exit\n\ \n\ Report bugs to <%s>.\n", program_name, PACKAGE_BUGREPORT); exit (status); } int main (int argc, char *argv[]) { char *argument, *relpath; set_program_name (argv[0]); setlocale (LC_ALL, ""); bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); /* Check for options. */ while (1) { int c = getopt_long (argc, argv, "hV", options, 0); if (c == -1) break; else switch (c) { case 'h': usage (0); break; case 'V': printf ("%s (%s) %s\n", program_name, PACKAGE_NAME, PACKAGE_VERSION); return 0; default: usage (1); break; } } if (optind >= argc) { fprintf (stderr, "No path is specified.\n"); usage (1); } if (optind + 1 != argc) { fprintf (stderr, "Unknown extra argument `%s'.\n", argv[optind + 1]); usage (1); } argument = argv[optind]; relpath = make_system_path_relative_to_its_root (argument); printf ("%s\n", relpath); free (relpath); return 0; }