stat-util.h revision 872a590ef83b23a65071242a8082d25d5efa6db6
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of systemd.
Copyright 2010-2012 Lennart Poettering
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 <sys/stat.h>
#include <sys/vfs.h>
#include "macro.h"
int is_symlink(const char *path);
int is_dir(const char *path, bool follow);
int is_device_node(const char *path);
int dir_is_empty(const char *path);
static inline int dir_is_populated(const char *path) {
int r;
r = dir_is_empty(path);
if (r < 0)
return r;
return !r;
}
bool null_or_empty(struct stat *st) _pure_;
int null_or_empty_path(const char *fn);
int null_or_empty_fd(int fd);
int path_is_read_only_fs(const char *path);
int path_is_os_tree(const char *path);
int files_same(const char *filea, const char *fileb);
/* The .f_type field of struct statfs is really weird defined on
* different archs. Let's use our own type we know is sufficiently
* larger to store the possible values. */
typedef long statfs_f_type_t;
bool is_fs_type(const struct statfs *s, statfs_f_type_t magic_value) _pure_;
int fd_check_fstype(int fd, statfs_f_type_t magic_value);
int path_check_fstype(const char *path, statfs_f_type_t magic_value);
bool is_temporary_fs(const struct statfs *s) _pure_;
int fd_is_temporary_fs(int fd);
/* Because statfs.t_type can be int on some architectures, we have to cast
* the const magic to the type, otherwise the compiler warns about
* signed/unsigned comparison, because the magic can be 32 bit unsigned.
*/
#define F_TYPE_EQUAL(a, b) (a == (typeof(a)) b)