C51 COMPILER V8.02   PING                                                                  10/17/2006 16:47:04 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE PING
OBJECT MODULE PLACED IN .\PING.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ..\PING\PING.C BROWSE DEBUG OBJECTEXTEND PRINT(.\PING.lst) OBJECT(.\PING.ob
                    -j)

line level    source

   1          /*
   2          ********************************************************************************
   3          * Wiznet.
   4          * 5F Simmtech Bldg., 228-3, Nonhyun-dong, Kangnam-gu,
   5          * Seoul, Korea
   6          *
   7          * (c) Copyright 2002, Wiznet, Seoul, Korea
   8          *
   9          * Filename      : PING.C
  10          * Programmer(s) : Wooyoul Kim
  11          * Version       : 1.0 
  12          * Created       : 2002/10/20
  13          * Modified      : 
  14          * Description   : Implemation of Ping
  15                            To send 'ping-request' to peer & To receive 'ping-reply' from peer.
  16          ********************************************************************************
  17          */
  18          
  19          /*
  20          ###############################################################################
  21          File Include Section
  22          ###############################################################################
  23          */
  24          #include <reg51.h>                      // 8051 SFR definition file
  25          #include "serial.h"                     // serial related functions
  26          #include "util.h"                       // Useful function
  27          #include "sockutil.h"                   // Util of W3100A
  28          #include "ping.h"                       // header file
  29          
  30          /*
  31          ###############################################################################
  32          Define Part
  33          ###############################################################################
  34          */
  35          
  36          /*
  37          ###############################################################################
  38          Local Variable Declaration Section
  39          ###############################################################################
  40          */
  41          
  42          /*
  43          ###############################################################################
  44          Function Implementation Section
  45          ###############################################################################
  46          */
  47          
  48          
  49          /*
  50          Description   :  Send ping-request to the specified peer and receive ping-reply from the specified peer.
  51          Argument      :  count - Ping reqeust count. 
  52                                   If count is -1 then to send ping request to the specified peer infinitely.
  53                           size  - Data size to be sent, The range is greater than 0 and less than 1460
  54                           time  - wait ping reply time
C51 COMPILER V8.02   PING                                                                  10/17/2006 16:47:04 PAGE 2   

  55                           addr  - Peer Ip Address(Decimal Dotted-notation)
  56                           log   - result of ping
  57          Return Value  :  1 - success, -1 - fail because free socket is not found or can't be opened.
  58          Note          :  
  59          */
  60          char ping(int count, u_int size, u_int time, char* addr, PINGLOG* log)
  61          {
  62   1              PING xdata PingRequest;         // Variable for Ping Request
  63   1              PING xdata PingReply;           // Variable for Ping Reply
  64   1              u_long peerip;                  // 32 bit Peer IP Address
  65   1              char tempip[4];                 // ip address received from a destination
  66   1              char xdata addrstr[16];         // Decimal dotted-notation IP address string
  67   1              u_int xdata port;               // port number received from a destination
  68   1              u_int i,len;
  69   1              SOCKET s = -1;                  // socket variable for pinging
  70   1              char bLoop = 0;                 // Infinite = 1, finite = 0
  71   1              char IsReceived = 0;            // Received packet = 1, not received packet = 0
  72   1              int xdata RemainTime=0;       // Remained Time for waiting to ping-reply
  73   1              
  74   1              /* Initialize PingRequest */
  75   1              static u_int xdata RandomID = 0x1234;           // Ping-Request ID
  76   1              static u_int xdata RandomSeqNum = 0x4321;       // Ping-Request packet's sequence number
  77   1              PingRequest.Type = 8;                           // Ping-Request 
  78   1              PingRequest.Code = 0;                           // always 0
  79   1              PingRequest.CheckSum = 0;                       // value of checksum before calucating checksum of ping-r
             -equest packet
  80   1              PingRequest.ID = RandomID++;                    // set ping-request's ID to random integer value
  81   1              PingRequest.SeqNum = RandomSeqNum++;            // set ping-request's sequence number to ramdom integer v
             -alue
  82   1              for(i = 0 ; i < 1452; i++)      PingRequest.Data[i] = 'a' + i % 23;     // fill 'a'~'w' characters into ping-reque
             -st's data 
  83   1      
  84   1              /* Initialize result of pinging */
  85   1              (*log).CheckSumErr=0;                           // Checksum Error
  86   1              (*log).UnreachableMSG=0;                        // received unreachable message
  87   1              (*log).TimeExceedMSG=0;                         // received time exceeded message
  88   1              (*log).UnknownMSG = 0;                          // received unknown message
  89   1              (*log).ARPErr=0;                                // fail to send arp-packet
  90   1              (*log).PingRequest=0;                           // count of sending ping-request to the specified peer 
  91   1              (*log).PingReply=0;                             // count of receiving ping-reply from the specified peer
  92   1              (*log).Loss=0;                                  // count of occurring timeout. 
  93   1      
  94   1              /* Verify arguments */  
  95   1              if(count == -1) bLoop = 1;                              // if it is infinite 
  96   1              else if( count < 1 || count > 0x7FFF) count = 4;        // set count to defalut value
  97   1              if(size < 1 || size > 1452)     size = 32;              // set size to default value
  98   1              if(time < 1 || time > 0x7FFF)   time = 10;              // set time to default value
  99   1      
 100   1              /* Create a ping socket */
 101   1              if((s = getSocket(SOCK_CLOSED,0)) == -1) return -1;     // if it isn't exist free socket, Error
 102   1              setIPprotocol(s,IPPROTO_ICMP);                          // Set upper-protocol of IP proctol
*** WARNING C206 IN LINE 102 OF ..\PING\PING.C: 'setIPprotocol': missing function-prototype
*** ERROR C267 IN LINE 102 OF ..\PING\PING.C: 'setIPprotocol': requires ANSI-style prototype
 103   1              if(socket(s,SOCK_IPL_RAW,3000,0)==-1) return -1;        // Open IP_RAW Mode , if fail then Error
 104   1      
 105   1              peerip = inet_addr(addr);                               // convert address's string into 32bit address
 106   1      
 107   1              PutString("\r\nPinging ");PutString(addr);PutString(" with ");PutString(ITOA(size,addrstr,10));PutStringL
             -n(" bytes of data :\r\n");
 108   1      
 109   1              /* Ping Service */
 110   1              while(bLoop || count > 0)                               // if Infinite or count > 0, Loop 
C51 COMPILER V8.02   PING                                                                  10/17/2006 16:47:04 PAGE 3   

 111   1              {
 112   2                      if(IsPressedKey()==1)                   // Is pressed "Ctrl-C" or "Ctrl-Break"?
 113   2                              if(GetByte()==0x03)     bLoop=count=0;
 114   2                      IsReceived = 0;
 115   2                      count--;
 116   2                      RemainTime = time;                              
 117   2                      PingRequest.SeqNum++;                           // Increase Sequence number for next ping-request packet
 118   2                      PingRequest.CheckSum = 0;
 119   2                      PingRequest.CheckSum = checksum((u_char*)&PingRequest,size+8);  // update checksum field