/* udpShow.c - UDP information display routines *//* Copyright 1984 - 2001 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01f,10may02,kbw  making man page edits01e,15oct01,rae  merge from truestack ver 01f, base 01d (VIRTUAL_STACK)01d,14dec97,jdi  doc: cleanup01c,04aug97,kbw  fixed man page problems found in beta review01b,20apr97,kbw  fixed man page format, spell check.01a,08mar97,vin  written.*//*DESCRIPTIONThis library provides routines to show UDP related statistics.Interpreting these statistics requires detailed knowledge of Internetnetwork protocols.  Information on these protocols can be found inthe 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.LPThe udpShowInit() routine links the UDP show facility into the VxWorkssystem.  This is performed automatically if INCLUDE_NET_SHOW and INCLUDE_UDPare defined.SEE ALSO: netLib, netShow*/#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/udp.h"#include "netinet/udp_var.h"#include "errno.h"#include "string.h"#include "stdio.h"#ifdef VIRTUAL_STACK#include "netinet/vsLib.h"#endif    /* VIRTUAL_STACK */#define plural(num)	((num) > 1 ? "s": "")/* externs */#ifndef VIRTUAL_STACK IMPORT struct inpcbhead		udb;		/* defined in udp_usrreq.c */IMPORT struct inpcbhead * 	_pUdpPcbHead;	/* defined in netShow.c */IMPORT struct udpstat 		udpstat;	/* defined in udp_usrreq.c */#endif    /* VIRTUAL_STACK *//******************************************************************************** udpShowInit - initialize UDP show routines** This routine links the UDP show facility into the VxWorks system.* These routines are included automatically if INCLUDE_NET_SHOW* and INCLUDE_UDP are defined.** RETURNS: N/A*/void udpShowInit (void)    {    _pUdpPcbHead = &udb; 	/* initialize the pcb for generic show rtns */    }/******************************************************************************* udpstatShow - display statistics for the UDP protocol** This routine displays statistics for the UDP protocol.** RETURNS: N/A*/void udpstatShow (void)    {    unsigned int udptotal = udpstat.udps_ipackets + udpstat.udps_opackets;#ifdef VIRTUAL_STACK    printf("UDP: (stack number %d)\n\t%u total packets\n", myStackNum,           udptotal);#else    printf("UDP:\n\t%u total packets\n", udptotal);#endif /* VIRTUAL_STACK */    printf("\t%u input packets\n", (int)udpstat.udps_ipackets);    printf("\t%u output packets\n", (int)udpstat.udps_opackets);    printf("\t%u incomplete header%s\n",	   (int)udpstat.udps_hdrops, plural(udpstat.udps_hdrops));    printf("\t%u bad data length field%s\n",	   (int)udpstat.udps_badlen, plural(udpstat.udps_badlen));    printf("\t%u bad checksum%s\n",	   (int)udpstat.udps_badsum, plural(udpstat.udps_badsum));    printf("\t%u broadcasts received with no ports\n",	   (int)udpstat.udps_noportbcast);    printf("\t%u full socket%s\n",	   (int)udpstat.udps_fullsock, plural(udpstat.udps_fullsock));    printf("\t%u pcb cache lookup%s failed\n",	   (int)udpstat.udpps_pcbcachemiss,           plural(udpstat.udpps_pcbcachemiss));    printf("\t%u pcb hash lookup%s failed\n",	   (int)udpstat.udpps_pcbhashmiss, plural(udpstat.udpps_pcbhashmiss));    }