FIBUFSIZ
ttbuf.c_cc[VMIN] = FIBUFSIZ > 64 ? 64 : FIBUFSIZ;
char ibuf[FIBUFSIZ];
if (eof = flen > FIBUFSIZ)
flen -= FIBUFSIZ + 1;
static int ret = FIBUFSIZ / 2;
if ((len = frdbuf(ip, FIBUFSIZ, fn)) == FAIL) {
return FIBUFSIZ + 1 + nl;
if ((len = frdbuf(erbp, FIBUFSIZ, fn)) != FAIL)