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The \libname{libcrc32.a} library provides an implementation of the
CRC-32 checksum algorithm which conforms to the interface required by
the Kerberos library
\begin{funcdecl}[crc32_sum_func]{static krb5_error_code}{\funcin}
\funcarg{krb5_pointer}{in}
\funcarg{size_t}{in_length}
\funcarg{krb5_pointer}{seed}
\funcarg{size_t}{seed_length}
\funcout
\funcarg{krb5_checksum *}{outcksum}
\end{funcdecl}
This routine computes a CRC-32 checksum over \funcparam{in_length} bytes
at \funcparam{in}, and places the resulting value into
\funcparam{outcksum{\ptsto}contents}.
\funcparam{outcksum{\ptsto}contents} must be set by the caller to point
to at least 4 bytes of storage.
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