icmpshow.c

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/* icmpShow.c - ICMP Information display routines */

/* Copyright 1984-1997 Wind River Systems, Inc. */
#include "copyright_wrs.h"

/*
modification history
--------------------
01c,31jul97,kbw  fixed man page problems found in beta review
01b,20apr97,kbw  fixed man page format, spell check.
01a,08mar97,vin  written.
*/

/*
DESCRIPTION
This library provides routines to show ICMP related
statistics.

Interpreting these statistics requires detailed knowledge of Internet
network protocols.  Information on these protocols can be found in
the following books:
.iP  
.I "TCP/IP Illustrated Volume II, The Implementation,"
by Richard Stevens
.iP 
.I "The Design and Implementation of the 4.4 BSD UNIX Operating System,"
by Leffler, McKusick, Karels and Quarterman
.LP
The icmpShowInit() routine links the ICMP show facility into the VxWorks
system.  This is performed automatically if INCLUDE_NET_SHOW is defined
in configAll.h.

SEE ALSO: netLib, netShow,
.I "Network Programmer's Guide"
*/

#include "vxWorks.h"
#include "sys/types.h"
#include "netinet/in.h"
#include "netinet/in_systm.h"
#include "netinet/ip.h"
#include "netinet/ip_var.h"
#include "netinet/ip_icmp.h"
#include "netinet/icmp_var.h"
#include "errno.h"
#include "string.h"
#include "stdio.h"

#define plural(num)	((num) > 1 ? "s": "")

/******************************************************************************
*
* icmpShowInit - initialize ICMP show routines
*
* This routine links the ICMP show facility into the VxWorks system.
* These routines are included automatically if INCLUDE_NET_SHOW
* and INCLUDE_ICMP are defined in configAll.h.
*
* RETURNS: N/A
*/

void icmpShowInit (void)
    {
    
    }

/*******************************************************************************
*
* icmpstatShow - display statistics for ICMP
*
* This routine displays statistics for the ICMP 
* (Internet Control Message Protocol) protocol.
*
* RETURNS: N/A
*/

void icmpstatShow (void)
    {
    static char *icmpNames[] =
    {
	"echo reply",
	"#1",
	"#2",
	"destination unreachable",
	"source quench",
	"routing redirect",
	"#6",
	"#7",
	"echo",
	"#9",
	"#10",
	"time exceeded",
	"parameter problem",
	"time stamp",
	"time stamp reply",
	"information request",
	"information request reply",
	"address mask request",
	"address mask reply",
    };

    FAST int ix;
    FAST int first;

    printf("ICMP:\n\t%u call%s to icmp_error\n",
	   (int)icmpstat.icps_error, plural(icmpstat.icps_error));

    printf("\t%u error%s not generated because old message was icmp\n",
	   (int)icmpstat.icps_oldicmp, plural(icmpstat.icps_oldicmp));

    for (first = 1, ix = 0; ix < ICMP_MAXTYPE + 1; ix++)
	{
	if (icmpstat.icps_outhist [ix] != 0)
	    {
	    if (first)
		{
		printf("\tOutput histogram:\n");
		first = 0;
		}

	    printf("\t\t%s: %u\n", icmpNames [ix],
		   (int)icmpstat.icps_outhist [ix]);
	    }
	}

    printf("\t%u message%s with bad code fields\n",
	   (int)icmpstat.icps_badcode, plural(icmpstat.icps_badcode));

    printf("\t%u message%s < minimum length\n",
	   (int)icmpstat.icps_tooshort, plural(icmpstat.icps_tooshort));

    printf("\t%u bad checksum%s\n",
	   (int)icmpstat.icps_checksum, plural(icmpstat.icps_checksum));

    printf("\t%u message%s with bad length\n",
	   (int)icmpstat.icps_badlen, plural(icmpstat.icps_badlen));

    for (first = 1, ix = 0; ix < ICMP_MAXTYPE + 1; ix++)
	{
	if (icmpstat.icps_inhist [ix] != 0)
	    {
	    if (first)
		{
		printf("\tInput histogram:\n");
		first = 0;
		}

	    printf("\t\t%s: %u\n", icmpNames [ix],
		   (int)icmpstat.icps_inhist [ix]);
	    }
	}

    printf("\t%u message response%s generated\n",
	   (int)icmpstat.icps_reflect, plural(icmpstat.icps_reflect));
    }