taglinefilesource code
prt207net/ipv4/ip_fw.cunsigned short    f_prt=0, prt;
prt293net/ipv4/ip_fw.cprt=IP_FW_F_TCP;
prt302net/ipv4/ip_fw.cprt=IP_FW_F_UDP;
prt309net/ipv4/ip_fw.cprt=IP_FW_F_ICMP;
prt313net/ipv4/ip_fw.cprt=IP_FW_F_ALL;
prt413net/ipv4/ip_fw.cif(prt!=f_prt)
prt416net/ipv4/ip_fw.cif((prt==IP_FW_F_ICMP &&
prt419net/ipv4/ip_fw.c!(prt==IP_FW_F_ICMP || ((match & 0x01) &&