From 61c5d308d97dec46f856085b0cd07dfbd5c76a16 Mon Sep 17 00:00:00 2001 From: Justus Winter <4winter@informatik.uni-hamburg.de> Date: Fri, 5 Jul 2013 17:13:28 +0200 Subject: mount: implement -O, --test-opts --test-opts in combination with --all mounts only those filesystems with options matching the given set of options. Note that the semantic of the inverting "no" prefix differs from --types: While --types=nonfs,ufs means neither nfs nor ufs, --test-opts=nofoo,bar means not foo, but bar. * utils/match-options.h: New file. * utils/match-options.c: Likewise. (test_opts): New variable. (test_opts_len): Likewise. (match_options): New function. * utils/mount.c (parse_opt): Handle -O, --test-opts. (main): Use match_options as filter. --- utils/match-options.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 utils/match-options.h (limited to 'utils/match-options.h') diff --git a/utils/match-options.h b/utils/match-options.h new file mode 100644 index 00000000..ea7ae70d --- /dev/null +++ b/utils/match-options.h @@ -0,0 +1,33 @@ +/* Common functionality for the --test-opts flag of mount and umount. + + Copyright (C) 2013 Free Software Foundation, Inc. + Written by Justus Winter <4winter@informatik.uni-hamburg.de> + + This file is part of the GNU Hurd. + + The GNU Hurd 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 2, or (at + your option) any later version. + + The GNU Hurd 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include + +extern char *test_opts; +extern size_t test_opts_len; + +/* Check whether the given mount entry matches the given set of + options. + + Returns 0 if foo is in the options vector but nofoo is in test_opts. + Returns 0 if foo is in test_opts but foo is not in the options vector. */ +int +match_options (struct mntent *mntent); -- cgit v1.2.3