int kfile_gets(struct KFile *fd, char *buf, int size);
int kfile_gets_echo(struct KFile *fd, char *buf, int size, bool echo);
void kfile_resync(KFile *fd, mtime_t delay);
int kfile_gets(struct KFile *fd, char *buf, int size);
int kfile_gets_echo(struct KFile *fd, char *buf, int size, bool echo);
void kfile_resync(KFile *fd, mtime_t delay);