Looking for a CRC-32 algorithm implemented in C

[scottb at comm-a.isc-br.com]

We are currently looking for "C" code which implements the 
32 bit CRC as specified by the the ISO International 
Standards 8802/3 (CSMA/CD) and 8802/5 (Token Ring Access Method)
for implementing CRC's on local area networks.  If someone
has such a beast, would you please E-mail it to me?
Do not post the answer, as I do not regularly read these groups.

Thanks in advance.
--
Scott Burrington             ||  UUCP:  scottb at isc-br.ISC-BR.COM
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