source: tmcsimulator/branches/fep_client_cpp/hexdump.c @ 69

#include <stdio.h>



void hexDump (char *desc, void *addr, int len) {

    int i;

    unsigned char buff[17];

    unsigned char *pc = (unsigned char*)addr;



    // Output description if given.

    if (desc != NULL)

        printf ("%s:\n", desc);



    if (len == 0) {

        printf("  ZERO LENGTH\n");

        return;

    }

    if (len < 0) {

        printf("  NEGATIVE LENGTH: %i\n",len);

        return;

    }



    // Process every byte in the data.

    for (i = 0; i < len; i++) {

        // Multiple of 16 means new line (with line offset).



        if ((i % 16) == 0) {

            // Just don't print ASCII for the zeroth line.

            if (i != 0)

                printf ("  %s\n", buff);



            // Output the offset.

            printf ("  %04x ", i);

        }



        // Now the hex code for the specific character.

        printf (" %02x", pc[i]);



        // And store a printable ASCII character for later.

        if ((pc[i] < 0x20) || (pc[i] > 0x7e))

            buff[i % 16] = '.';

        else

            buff[i % 16] = pc[i];

        buff[(i % 16) + 1] = '\0';

    }



    // Pad out last line if not exactly 16 characters.

    while ((i % 16) != 0) {

        printf ("   ");

        i++;

    }



    // And print the final ASCII bit.

    printf ("  %s\n", buff);

}