FLD_EXP
FLD_AGE, FLD_EXP, FLD_PKTS, FLD_BYTES, NULL
FLD_EXP, FLD_PKTS, FLD_BYTES, FLD_SI, FLD_SP, FLD_SA, FLD_RULE, NULL
FLD_PROTO, FLD_DIR, FLD_SRC, FLD_DEST, FLD_STATE, FLD_AGE, FLD_EXP,
FLD_PROTO, FLD_DIR, FLD_SRC, FLD_DEST, FLD_AGE, FLD_EXP, FLD_PKTS,
FLD_AGE, FLD_EXP, FLD_SI, FLD_SP, FLD_SA, FLD_RULE, FLD_GW, NULL
FLD_BYTES, FLD_STATE, FLD_PKTS, FLD_AGE, FLD_EXP, FLD_RULE, FLD_GW, NULL
print_fld_age(FLD_EXP, ntohl(s->expire));