/* * Copyright (C) 2000, Richard Sharpe * * This software may be distributed either under the terms of the * BSD-style licence that accompanies tcpdump or under the GNU GPL * version 2 or later. * * print-beep.c * */#ifndef lintstatic const char rcsid[] _U_ =  "@(#) $Header: /tcpdump/master/tcpdump/print-beep.c,v 1.6 2003-11-16 09:36:13 guy Exp $";#endif#ifdef HAVE_CONFIG_H#include "config.h"#endif#include <tcpdump-stdinc.h>#ifdef HAVE_MEMORY_H#include <memory.h>#endif#include <stdio.h>#include <stdlib.h>#include <string.h>#include "interface.h"#include "extract.h"/* Check for a string but not go beyond length * Return TRUE on match, FALSE otherwise * * Looks at the first few chars up to tl1 ... */static int l_strnstart(const char *, u_int, const char *, u_int);static intl_strnstart(const char *tstr1, u_int tl1, const char *str2, u_int l2){	if (tl1 > l2)		return 0;	return (strncmp(tstr1, str2, tl1) == 0 ? 1 : 0);}voidbeep_print(const u_char *bp, u_int length){	if (l_strnstart("MSG", 4, (const char *)bp, length)) /* A REQuest */		printf(" BEEP MSG");	else if (l_strnstart("RPY ", 4, (const char *)bp, length))		printf(" BEEP RPY");	else if (l_strnstart("ERR ", 4, (const char *)bp, length))		printf(" BEEP ERR");	else if (l_strnstart("ANS ", 4, (const char *)bp, length))		printf(" BEEP ANS");	else if (l_strnstart("NUL ", 4, (const char *)bp, length))		printf(" BEEP NUL");	else if (l_strnstart("SEQ ", 4, (const char *)bp, length))		printf(" BEEP SEQ");	else if (l_strnstart("END", 4, (const char *)bp, length))		printf(" BEEP END");	else		printf(" BEEP (payload or undecoded)");}