#define CP_CHP_CIPHER_SIZE_INT(f, l, ivlen) ( \ (l) - \ CP_CHP_REALHEADER_SIZE_INT(f,ivlen) - \ CP_CHP_TRAILER_SIZE(f) - \ ((((f)&CP_CHP_TRAILER_MASK)==CP_CHP_TRAILER_MASK) \ ?(0) \ :(CP_CHP_HASH_SIZE(f))) \ )