Systemd/src/shared/fstab-util.h
Zbigniew Jędrzejewski-Szmek b9f111b93f Support negated fstab options
We would ignore options like "fail" and "auto", and for any option
which takes a value the first assignment would win. Repeated and
options equivalent to the default are rarely used, but they have been
documented forever, and people might use them. Especially on the
kernel command line it is easier to append a repeated or negated
option at the end.
2015-01-11 23:41:41 -05:00

49 lines
1.5 KiB
C

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of systemd.
Copyright 2015 Zbigniew Jędrzejewski-Szmek
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdbool.h>
#include <stddef.h>
#include "macro.h"
int fstab_filter_options(const char *opts, const char *names,
const char **namefound, char **value, char **filtered);
static inline bool fstab_test_option(const char *opts, const char *names) {
return !!fstab_filter_options(opts, names, NULL, NULL, NULL);
}
int fstab_find_pri(const char *options, int *ret);
static inline bool fstab_test_yes_no_option(const char *opts, const char *yes_no) {
int r;
const char *opt;
/* If first name given is last, return 1.
* If second name given is last or neither is found, return 0. */
r = fstab_filter_options(opts, yes_no, &opt, NULL, NULL);
assert(r >= 0);
return opt == yes_no;
}