mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-10-30 23:21:08 +03:00
831f800da3
As promised, here is the next round. We provide in addition to the already used macros: strfieldcpy(to, from) strfieldcat(to, from) the corresponding friends, if the size of the target is not known and must be provided by the caller: strnfieldcpy(to, from, maxsize) strnfieldcat(to, from, maxsize) and switch nearly all possibly unsafe users of strcat(), strncat(), strcpy() and strncpy() to these safer macros. The last known remaining issue seems the use of sprintf() and snprintf(). I will take on it later today or tomorrow.
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*
|
|
* udev.h
|
|
*
|
|
* Userspace devfs
|
|
*
|
|
* Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
|
|
*
|
|
* This program 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 version 2 of the License.
|
|
*
|
|
* This program 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef UDEV_H
|
|
#define UDEV_H
|
|
|
|
#include <sysfs/libsysfs.h>
|
|
#include <stddef.h>
|
|
#include <sys/param.h>
|
|
|
|
#define COMMENT_CHARACTER '#'
|
|
|
|
#define NAME_SIZE 100
|
|
#define OWNER_SIZE 30
|
|
#define GROUP_SIZE 30
|
|
#define MODE_SIZE 8
|
|
|
|
/* length of public data */
|
|
#define UDEVICE_LEN (offsetof(struct udevice, bus_id))
|
|
|
|
struct udevice {
|
|
char name[NAME_SIZE];
|
|
char owner[OWNER_SIZE];
|
|
char group[GROUP_SIZE];
|
|
char type;
|
|
int major;
|
|
int minor;
|
|
unsigned int mode; /* not mode_t due to conflicting definitions in different libcs */
|
|
char symlink[NAME_SIZE];
|
|
int partitions;
|
|
|
|
/* private data that help us in building strings */
|
|
char bus_id[SYSFS_NAME_LEN];
|
|
char program_result[NAME_SIZE];
|
|
char kernel_number[NAME_SIZE];
|
|
char kernel_name[NAME_SIZE];
|
|
};
|
|
|
|
#define strfieldcpy(to, from) \
|
|
do { \
|
|
to[sizeof(to)-1] = '\0'; \
|
|
strncpy(to, from, sizeof(to)-1); \
|
|
} while (0)
|
|
|
|
#define strfieldcat(to, from) \
|
|
do { \
|
|
to[sizeof(to)-1] = '\0'; \
|
|
strncat(to, from, sizeof(to) - strlen(to)-1); \
|
|
} while (0)
|
|
|
|
#define strnfieldcpy(to, from, maxsize) \
|
|
do { \
|
|
to[maxsize-1] = '\0'; \
|
|
strncpy(to, from, maxsize-1); \
|
|
} while (0)
|
|
|
|
#define strnfieldcat(to, from, maxsize) \
|
|
do { \
|
|
to[maxsize-1] = '\0'; \
|
|
strncat(to, from, maxsize - strlen(to)-1); \
|
|
} while (0)
|
|
|
|
extern int udev_add_device(char *path, char *subsystem, int fake);
|
|
extern int udev_remove_device(char *path, char *subsystem);
|
|
extern void udev_init_config(void);
|
|
extern int parse_get_pair(char **orig_string, char **left, char **right);
|
|
|
|
extern char **main_argv;
|
|
extern char **main_envp;
|
|
extern char sysfs_path[SYSFS_PATH_MAX];
|
|
extern char udev_root[PATH_MAX];
|
|
extern char udev_db_filename[PATH_MAX+NAME_MAX];
|
|
extern char udev_permissions_filename[PATH_MAX+NAME_MAX];
|
|
extern char udev_config_filename[PATH_MAX+NAME_MAX];
|
|
extern char udev_rules_filename[PATH_MAX+NAME_MAX];
|
|
extern char default_mode_str[MODE_SIZE];
|
|
extern char default_owner_str[OWNER_SIZE];
|
|
extern char default_group_str[GROUP_SIZE];
|
|
extern int udev_log;
|
|
extern int udev_sleep;
|
|
|
|
#endif
|