#include <libcanlock-3/canlock.h> cl_hash_version cl_split(char *input, char **klstring);
Possible return values (by version 3.0.0 of libcanlock):
CL_INVALID CL_SHA1 CL_SHA224 CL_SHA256 CL_SHA384 CL_SHA512
The cl_split() function splits a <c-key> or <c-lock> element according to RFC 8315.
The hash algorithm for <scheme> is extracted and the corresponding ID is returned. If the hash algorithm is not found or not supported, CL_INVALID is returned.
A pointer to the <c-key-string> or <c-lock-string> element
respectively is written to klstring on success (points inside the
string input and therefore no additional memory is allocated).
NULL is written to klstring on error.
Michael Bäuerle
(Based in part on lock_strip_alpha() written by G. J. Andruk for
Version 2)
RFC 5537, RFC 6234, RFC 8315