extern int add_matching_files(struct list_head *name_list, const char *dirname, const char *suffix);
extern int execute_program(const char *command, const char *subsystem,
char *result, size_t ressize, size_t *reslen);
extern int add_matching_files(struct list_head *name_list, const char *dirname, const char *suffix);
extern int execute_program(const char *command, const char *subsystem,
char *result, size_t ressize, size_t *reslen);