hmacbuf/hmacbuf
randbuffer/randbuffer
digestbuf/digestbuf
ohexstreambuf/ohexstreambuf
multistreambuf/multistreambuf       xsputn
ofdstreambuf/ofdstreambuf
tablebuf/tablebuf
iostreambuf/iostreambuf             xsputn
ifdstreambuf/ifdstreambuf           xsgetn
sharedstreambuf/sharedstreambuf     xsputn
decryptbuf/decryptbuf
ofoldstreambuf/ofoldstreambuf
syslogbuf/syslogbuf
readlinebuf/readlinebuf
ifilterstreambuf/ifilterstreambuf
encryptbuf/encryptbuf
