ban_ip1 = substring(s, 0, i1); // 8
ban_ip2 = substring(s, 0, i2); // 16
ban_ip3 = substring(s, 0, i3); // 24
ban_ip4 = strcat1(s); // 32
ban_ip1 = substring(s, 0, i1); // 8
ban_ip2 = substring(s, 0, i2); // 16
ban_ip3 = substring(s, 0, i3); // 24
ban_ip4 = strcat1(s); // 32