Systemd/src/basic/device-nodes.h

41 lines
1.6 KiB
C

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
This file is part of systemd.
Copyright 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 <stddef.h>
#include <sys/types.h>
#include "macro.h"
#include "stdio-util.h"
int encode_devnode_name(const char *str, char *str_enc, size_t len);
int whitelisted_char_for_devnode(char c, const char *additional);
#define SYS_BLOCK_PATH_MAX(suffix) \
(STRLEN("/sys/dev/block/") + DECIMAL_STR_MAX(dev_t) + 1 + DECIMAL_STR_MAX(dev_t) + strlen_ptr(suffix))
#define xsprintf_sys_block_path(buf, suffix, devno) \
xsprintf(buf, "/sys/dev/block/%u:%u%s", major(devno), minor(devno), strempty(suffix))
#define DEV_NUM_PATH_MAX \
(STRLEN("/dev/block/") + DECIMAL_STR_MAX(dev_t) + 1 + DECIMAL_STR_MAX(dev_t))
#define xsprintf_dev_num_path(buf, type, devno) \
xsprintf(buf, "/dev/%s/%u:%u", type, major(devno), minor(devno))