libnet_build_icmpv4_unreach()

Hi,

  What parameters does libnet_build_icmpv4_unreach actually take, the help says it takes all this

net_ptag_t
libnet_build_icmpv4_unreach  (  u_int8_t  type,
  u_int8_t  code,
  u_int16_t  sum,
  u_int16_t  orig_len,
  u_int8_t  orig_tos,
  u_int16_t  orig_id,
  u_int16_t  orig_frag,
  u_int8_t  orig_ttl,
  u_int8_t  orig_prot,
  u_int16_t  orig_check,
  u_int32_t  orig_src,
  u_int32_t  orig_dst,
  u_int8_t *  payload,
  u_int32_t  payload_s,
  libnet_t *  l,
  libnet_ptag_t  ptag )

but in samples, icmp_unreach.c uses this ?

libnet_build_icmpv4_unreach(
      ICMP_UNREACH,
      ICMP_UNREACH_PORT ,
      0,
      NULL,
      0,
      lh,
      icmp);

So which one of these is correct and which is wrong, and why this mismatch ??

thanks
Amit


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