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git.proxmox.com Git - grub2.git/blob - util/grub-mkrelpath.c
1 /* grub-mkrelpath.c - make a system path relative to its root */
3 * GRUB -- GRand Unified Bootloader
4 * Copyright (C) 2009,2010 Free Software Foundation, Inc.
6 * GRUB is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * GRUB is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
20 #include <grub/util/misc.h>
21 #include <grub/i18n.h>
26 static struct option options
[] =
28 {"help", no_argument
, 0, 'h'},
29 {"version", no_argument
, 0, 'V'},
37 fprintf (stderr
, "Try `%s --help' for more information.\n", program_name
);
40 Usage: %s [OPTIONS] PATH\n\
42 Make a system path relative to it's root.\n\
45 -h, --help display this message and exit\n\
46 -V, --version print version information and exit\n\
48 Report bugs to <%s>.\n", program_name
, PACKAGE_BUGREPORT
);
54 main (int argc
, char *argv
[])
56 char *argument
, *relpath
;
58 set_program_name (argv
[0]);
60 grub_util_init_nls ();
62 /* Check for options. */
65 int c
= getopt_long (argc
, argv
, "hV", options
, 0);
77 printf ("%s (%s) %s\n", program_name
, PACKAGE_NAME
, PACKAGE_VERSION
);
88 fprintf (stderr
, "No path is specified.\n");
92 if (optind
+ 1 != argc
)
94 fprintf (stderr
, "Unknown extra argument `%s'.\n", argv
[optind
+ 1]);
98 argument
= argv
[optind
];
100 relpath
= make_system_path_relative_to_its_root (argument
);
101 printf ("%s\n", relpath
);