diff options
Diffstat (limited to 'udev.h')
| -rw-r--r-- | udev.h | 45 |
1 files changed, 45 insertions, 0 deletions
@@ -23,6 +23,8 @@ #ifndef UDEV_H #define UDEV_H +#include <stdlib.h> +#include <string.h> #include <sysfs/libsysfs.h> #include <stddef.h> #include <sys/param.h> @@ -34,6 +36,10 @@ #define GROUP_SIZE 30 #define MODE_SIZE 8 +#define ACTION_SIZE 30 +#define DEVPATH_SIZE 255 +#define SUBSYSTEM_SIZE 30 + /* length of public data */ #define UDEVICE_LEN (offsetof(struct udevice, bus_id)) @@ -79,6 +85,45 @@ do { \ strncat(to, from, maxsize - strlen(to)-1); \ } while (0) +static inline char *get_action(void) +{ + char *action; + + action = getenv("ACTION"); + if (strlen(action) > ACTION_SIZE) + action[ACTION_SIZE-1] = '\0'; + + return action; +} + +static inline char *get_devpath(void) +{ + char *devpath; + + devpath = getenv("DEVPATH"); + if (strlen(devpath) > DEVPATH_SIZE) + devpath[DEVPATH_SIZE-1] = '\0'; + + return devpath; +} + +static inline char *get_seqnum(void) +{ + char *seqnum; + + seqnum = getenv("SEQNUM"); + + return seqnum; +} + +static inline char *get_subsystem(char *subsystem) +{ + if (strlen(subsystem) > SUBSYSTEM_SIZE) + subsystem[SUBSYSTEM_SIZE-1] = '\0'; + + return subsystem; +} + 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); |