lock_file_name
char *lock_file_name(const struct printer *_pp, char *_buf, size_t _len);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, file, sizeof file);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, lf, sizeof lf);
lock_file_name(pp, buf, sizeof buf);