Converting integers to strings

[fatboySudsy]

hi there,

I have been struggling for a while with a client/server program. I have to authenticate in order to log on correctly. I have managed to get most things sorted, asking for username ( which is an integer ) and also and customer ID (also an int), storing them into an array and then sending the data over to my server. However when if I printf the data the on the server the numbers do not match, and I do not know why ?

Somebody said that i needed to convert my integers into strings in my client program before sending them to the server....how on earth do i do this ? Do i need to do it ?

I have tried looking through google but have been unable to find anything on this subject, anyone got any ideas ?

Thanks for reading !

[Savage]

hi there,

I have been struggling for a while with a client/server program. I have to authenticate in order to log on correctly. I have managed to get most things sorted, asking for username ( which is an integer ) and also and customer ID (also an int), storing them into an array and then sending the data over to my server. However when if I printf the data the on the server the numbers do not match, and I do not know why ?

Somebody said that i needed to convert my integers into strings in my client program before sending them to the server....how on earth do i do this ? Do i need to do it ?

I have tried looking through google but have been unable to find anything on this subject, anyone got any ideas ?

Thanks for reading !

Function itoa converts int to string.Function syntax is:

char *itoa(int value, char *string, int radix);

where:

value - integer to be converted

string - points to location where converted number and terminating \0 are stored

radix - specifes the base used in converting value.Base isnumber beetwen 2-36,inclusive

[fatboySudsy]

Ok but what happens when i type in a long integer can i put an array name where value should be ?

i.e

char *itoa(int customer id[], char *string, int radix);

[Savage]

Ok but what happens when i type in a long integer can i put an array name where value should be ?

i.e

char *itoa(int customer id[], char *string, int radix);

Yes,you can.Only posible problem is that you must use a loop.

Here's a small example:

    int main(void)
    {
        int number[5],i;
        char *string[25];
        clrscr();
        for(i=0;i<5;i++) number[i]=0,*string[i]='\0';
        for(i=0;i<5;i++) number[i]=1+i;
        for(i=0;i<5;i++)
        {
            itoa(number[i], string[i], 10);
            *string[i-1]='\0';
            printf("integer = %d string = %s\n", number[i], string[i]);
        }
                getch();
        return 0;

}

[horace1]

is the representation of integers on the client and server machines the same? i.e. number of bytes used to store an int and if they are big endian or little endian. If not you will have to transalate between the representations.
If you have less than 256 user codes you could use an unsigned char (which is a byte sized integer) to store the value.