The Tcpdump Group git mirrors - tcpdump/blob - print-bxxp.c

   1 /*
   2  * Copyright (C) 2000, Richard Sharpe
   3  *
   4  * This software may be distributed either under the terms of the
   5  * BSD-style licence that accompanies tcpdump or under the GNU GPL
   6  * version 2 or later.
   7  *
   8  * print-bxxp.c
   9  *
  10  */
  11
  12 #ifndef lint
  13 static const char rcsid[] =
  14   "@(#) $Header: /tcpdump/master/tcpdump/Attic/print-bxxp.c,v 1.1 2000-09-30 03:35:56 guy Exp $";
  15 #endif
  16
  17 #ifdef HAVE_CONFIG_H
  18 #include "config.h"
  19 #endif
  20
  21 #include <sys/param.h>
  22 #include <sys/time.h>
  23
  24 #ifdef HAVE_MEMORY_H
  25 #include <memory.h>
  26 #endif
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <unistd.h>
  31
  32 #include "extract.h"
  33
  34 /* Check for a string but not go beyond length
  35  * Return TRUE on match, FALSE otherwise
  36  *
  37  * Looks at the first few chars up to tl1 ...
  38  */
  39 int
  40 l_strnstart(register const u_char *tstr1, register u_int tl1,
  41           register const u_char *str2, register u_int l2)
  42 {
  43
  44   if (tl1 > l2)
  45     return 0;
  46
  47   return (strncmp(tstr1, str2, tl1) == 0 ? 1 : 0);
  48
  49 }
  50
  51 void
  52 bxxp_print(register const u_char *bp, register u_int length)
  53 {
  54
  55   if (l_strnstart("REQ ", 4, bp, length)) { /* A REQuest */
  56
  57     printf(" BXXP REQ");
  58
  59   }
  60   else if (l_strnstart("RSP ", 4, bp, length)) {
  61
  62     printf(" BXXP RSP");
  63
  64   }
  65   else if (l_strnstart("SEQ ", 4, bp, length)) {
  66
  67     printf(" BXXP SEQ");
  68
  69   }
  70   else if (l_strnstart("END", 4, bp, length)) {
  71
  72     printf(" BXXP END");
  73
  74   }
  75   else
  76     printf(" BXXP (payload or undecoded)");
  77
  78 }