39 static void _sfbuf(Sfio_t* f, int* peek)  in _sfbuf()  argument
41 static void _sfbuf(f, peek)  in _sfbuf()
43 int*	peek;
47 	{	if(*peek) 	/* try peeking for a share stream if possible */
53 			*peek = 0;	/* can't peek, back to normal reads */
67 	int	peek;	/* != 0 if unseekable/share stream		*/  member
75 			 (sc)->peek = peek, (sc)->n_input = n_input)
79 			 peek = (sc)->peek, n_input = (sc)->n_input)
104 		if(sc->peek)
108 		_sfbuf(sc->f, &sc->peek);
341 	int		peek;  local
342 #define SFbuf(f)	(_sfbuf(f,&peek), (data = d = f->next), (endd = f->endb) )
344 #define SFinit(f)	((peek = f->extent < 0 && (f->flags&SF_SHARE)), SFbuf(f) )
346 			 (peek ? SFREAD(f,(Void_t*)data,SFlen(f)) : ((f->next = d),0)) )