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  1. Replies
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    hmmm doesn't seem to work I'm afraid. I'll...

    hmmm doesn't seem to work I'm afraid. I'll provide some pseudo - probably best!

    v = s; /*S being the variable scanned in from user, for example 42006f*/

    /*The next bit I don't know how to do,...
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    Looks right in your example - ill give that a...

    Looks right in your example - ill give that a shot tomorrow, goodnight! and thanks
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    Split/select long hex to pairs

    Hi all - its late and I really cannot figure this out! :(

    if unsigned char *s = 42006f, how can I split/select the hex value into its pairs i.e 42/00/6f so that I can manipulate the pair data...
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    Well I suppose as long as when its converted to...

    Well I suppose as long as when its converted to hex it makes sense...

    In that case...I only need one check and thats to ensure that the value is within the range

    The user could input 255, which...
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    Ok ill look at that: I'm basically gonna say ...

    Ok ill look at that:

    I'm basically gonna say

    Please insert start address (in hex):

    Please insert end address (in hex):

    If it isn't hex or valid (within the variable hex) then display error
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    Validation of user input

    Hello

    I would like to know how to validate user input in terms of:

    Length of input
    Input format (I would like to restrict to hex)

    and any other useful links regarding the matter

    thanks
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    cheers :)

    cheers :)
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    I want to be able to write the values from a...

    I want to be able to write the values from a start address to the given end address to a file.

    So the value starting at for example, *(hex+10) can be the first value written, to *(hex+20) when in...
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    Check entered address range is valid

    Hey

    I would like to know how to check whether a user specified start address and end address (for data locations) is valid or not

    Is there a way to check the given address is actually part of...
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    Thanks for the feedback all :) I'll take what...

    Thanks for the feedback all :)

    I'll take what you've given me and apply :D cheers
  11. Replies
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    Ok, would probably be the easiest option. Thanks...

    Ok, would probably be the easiest option. Thanks


    /***********************************************************************/
    /*Inclusions*/...
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    Its literally test data which I then later have...

    Its literally test data which I then later have to convert to a type of file. They can be anything (as long as its hex) as little or as small as required to carry out an example that it works

    They...
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    Test data can be as big or as small. I...

    Test data can be as big or as small.

    I suppose my question would be, what value would I be looking to detect as a end loop requirement when I have not actually allocated a value to *(hex+x)
    ...
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    End loop when empty/null value found

    Hello

    I'm looping through hex values


    for (x = 0; x <=10; x++) //Ignore the x <=10 value {
    printf("\nThe Value of hex %x is: %i\n",*(hex+x), *(hex+x));
    printf("\nThe value of X is:...
  15. Thanks very much guys/gals :)

    Thanks very much guys/gals :)
  16. nearly there :) I have one issue at the...

    nearly there :)

    I have one issue at the moment. When i ask for memory location within the test data function it works fine. But I want it passed back to the main function so it can be displayed...
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    I'll give that a go. One of those occasions when...

    I'll give that a go. One of those occasions when you know what you want to achieve, but cannot get your head around how to do it :)

    I'm using visual studio c++ to do my ansi c compiling etc.
    ...
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    Sorry I should be clearer. int...

    Sorry I should be clearer.


    int testData(void){
    unsigned char *hex;
    int t = 0;
    char *str;
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    It was buffer overflow. I have modified it a...

    It was buffer overflow.

    I have modified it a bit. Still not correct, but I hope you can see what I'm trying to do


    for (int i = 0; i <= p; i=i+2) {
    int y = i;
    int s = i+1;
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    Am I going about it the correct way? It tells...

    Am I going about it the correct way?

    It tells me the stack around str is corrupt or something. I'm not on it at the moment
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    Join two chars from array into a variable

    I then plan to store the variable as a hex value. Cross that bridge later.


    printf("\nTest data is: %c %c\n", testData1[y], testData1[s]);

    strcpy (str, &testData1[y]);
    strcat (str,...
  22. So I cannot get printf("Start of memory...

    So I cannot get


    printf("Start of memory block: %p\n", point); // the pointer's name is point not hex
    printf("End of memory block: %p\n", point + 65553 - 1)

    to work within my main without...
  23. I do know it, sometimes need reminding, but in...

    I do know it, sometimes need reminding, but in that case I was just writing noteform :P

    Thanks though
  24. Ok so char *point point = (unisgned char...

    Ok so


    char *point
    point = (unisgned char *)malloc(65553)
    if (point == NULL)
    {
    printf("Cannot allocate memory \n\r");
    exit(1);
    }
  25. Allocate memory, inform user of memory start and end address and store hex data

    Hello all

    Beginner here, running through some exercises I've found. I would like to allocate 64k of memory, printf to the user the starting and ending location of this memory, then store some hex...
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