in source/sigv4.c [1059:1066]
static size_t sizeNeededForCredentialScope( const SigV4Parameters_t * pSigV4Params )
{
assert( pSigV4Params != NULL );
return ISO_DATE_SCOPE_LEN + \
CREDENTIAL_SCOPE_SEPARATOR_LEN + pSigV4Params->regionLen + \
CREDENTIAL_SCOPE_SEPARATOR_LEN + pSigV4Params->serviceLen + \
CREDENTIAL_SCOPE_SEPARATOR_LEN + CREDENTIAL_SCOPE_TERMINATOR_LEN;
}