.BI "octet *BSTEP(buf *" b ", size_t " sz );
.PP
.BI "void *buf_get(buf *" b ", size_t " sz );
-.BI "void *buf_put(buf *" b ", const void *" p ", size_t " sz );
+.BI "int buf_put(buf *" b ", const void *" p ", size_t " sz );
.PP
.BI "int buf_getbyte(buf *" b );
.BI "int buf_putbyte(buf *" b ", int " ch );