_libmd_sha1block_scalar
extern void _libmd_sha1block_scalar(SHA1_CTX *, const void *, size_t);
return (_libmd_sha1block_scalar);
extern void _libmd_sha1block_scalar(SHA1_CTX *, const void *, size_t);
return (_libmd_sha1block_scalar);
_libmd_sha1block_scalar(c, data + safe_len, len - safe_len);
_libmd_sha1block_scalar(c, data, len);