Rolf Meyer / Mbed 2 deprecated ethersniff_hex

A simple example how to receive ethernet packages and display them over stdout with an hexviewer

Dependencies:   mbed

main.cpp@0:2f61a610595e, 2009-12-09 (annotated)

Committer:
rolf
Date:
Wed Dec 09 11:36:29 2009 +0000
Revision:
0:2f61a610595e

        

        
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/* mbed Ethernet class demo





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 * Copyright (c) 2009 rmeyer





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 * Released under the MIT License: http://mbed.org/license/mit





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 */





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#include "mbed.h"





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#include "hexview.h"





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DigitalOut led(LED4);





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Ethernet eth;





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unsigned short htons(unsigned short n) {               // Host short to network shor





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  return ((n & 0xff) << 8) | ((n & 0xff00) >> 8);      // Byte swapping





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}





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void show(char *buf, int size) {





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    printf("ETH:  Src:  %02hX:%02hX:%02hX:%02hX:%02hX:%02hX  ",





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            buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);





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    printf("Dst:  %02hX:%02hX:%02hX:%02hX:%02hX:%02hX   ",





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            buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);





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    unsigned int type = (buf[12] << 8) | (buf[13]);





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    printf("Type: %hd\n", htons( type));





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    hexview2(buf, size);





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}





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int main() {





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    char buffer[0x300];





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    int size = 0;





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    while(1) {





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        if((size = eth.receive()) != 0) {





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            eth.read(buffer, size);





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            show(buffer, size);





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        }





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        led = !led;





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        wait(0.2);





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    }





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}