hmacbuf/hmacbuf
randbuf/randbuf
digestbuf/digestbuf
ohexbuf/ohexbuf
multibuf/multibuf       xsputn
ofdbuf/ofdbuf
tablebuf/tablebuf
iobuf/iobuf             xsputn
ifdbuf/ifdbuf           xsgetn
sharedbuf/sharedbuf     xsputn
decryptbuf/decryptbuf
ofoldbuf/ofoldbuf
syslogbuf/syslogbuf
readlinebuf/readlinebuf
ifilterbuf/ifilterbuf
encryptbuf/encryptbuf
