for (i = 0; (flags = read_byte(f)) != 0; i++) {
if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
flags |= read_byte(f) << 8;
for (i = 0; (flags = read_byte(f)) != 0; i++) {
if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
flags |= read_byte(f) << 8;