CMP_R_TRANSFER_ERROR
ctx->total_timeout != 0 && time(NULL) >= ctx->end_time ? CMP_R_TOTAL_TIMEOUT : CMP_R_TRANSFER_ERROR,
{ ERR_PACK(ERR_LIB_CMP, 0, CMP_R_TRANSFER_ERROR), "transfer error" },
ERR_raise(ERR_LIB_CMP, CMP_R_TRANSFER_ERROR);