text: #ifndef LINEBUF_H
  #define LINEBUF_H
  
  struct linebuf;
  struct tls;
  
  struct linebuf*			 linebuf_create(void);
  void				 linebuf_free(struct linebuf *);
  
  char				*linebuf_read(struct linebuf *);
  int				 linebuf_fill_from_tls(struct linebuf *,
  				     struct tls *);
  
  #endif
  