dist/ipf/lib/printproto.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2005 by Darren Reed.
   5  *
   6  * See the IPFILTER.LICENCE file for details on licencing.
   7  */
   8
   9 #include "ipf.h"
  10
  11
  12 #if !defined(lint)
  13 static const char rcsid[] = "@(#)Id: printproto.c,v 1.1.2.3 2007/10/27 16:03:39 darrenr Exp";
  14 #endif
  15
  16
  17 void printproto(pr, p, np)
  18 struct protoent *pr;
  19 int p;
  20 ipnat_t *np;
  21 {
  22         if (np != NULL) {
  23                 if ((np->in_flags & IPN_TCPUDP) == IPN_TCPUDP)
  24                         printf("tcp/udp");
  25                 else if (np->in_flags & IPN_TCP)
  26                         printf("tcp");
  27                 else if (np->in_flags & IPN_UDP)
  28                         printf("udp");
  29                 else if (np->in_flags & IPN_ICMPQUERY)
  30                         printf("icmp");
  31 #ifdef _AIX51
  32                 /*
  33                  * To make up for "ip = 252" and "hopopt = 0" in /etc/protocols
  34                  * The IANA has doubled up on the definition of 0 - it is now
  35                  * also used for IPv6 hop-opts, so we can no longer rely on
  36                  * /etc/protocols providing the correct name->number mapping
  37                  */
  38 #endif
  39                 else if (np->in_p == 0)
  40                         printf("ip");
  41                 else if (pr != NULL)
  42                         printf("%s", pr->p_name);
  43                 else
  44                         printf("%d", np->in_p);
  45         } else {
  46 #ifdef _AIX51
  47                 if (p == 0)
  48                         printf("ip");
  49                 else
  50 #endif
  51                 if (pr != NULL)
  52                         printf("%s", pr->p_name);
  53                 else
  54                         printf("%d", p);
  55         }
  56 }