and
.BR lbuf_flush .
.PP
-The
+The
.B lbuf_free
function returns the address and size of a free portion of the line
buffer's memory into which data may be written. The function is passed
-the address
+the address
.I b
of the line buffer. Its result is the size of the free area, and it
writes the base address of this free space to the location pointed to by