Huffman encoding in C

[coucchy]

Hello everyone, i'm writing a C program that will read a text file and then encode the characters using huffman algorithm. So far i've read the files, built a tree, and now I'm building the strings to be used in encoding, Where i'm having problem is my BuildStrings function, instead of printing the 0s and 1s I appended to the array it outputs a series of 0s and 1s. Below is the BuildStrings function and the main function.

/*This funtion will build strings to be used in Huffman encoding
It is recursive in nature and will traverse the tree while appending 
0 to left paths and 1 to right paths. */
 
void BuildStrings(sTreenode *r)
{
    //printf("I depeth is: %i\n",r->weight);    
    if ((r->LChild == NULL) && (r->RChild == NULL))        //found a leaf yet?
    {strcpy(cStrings[(((int) r->data) & 0xff)],cPath);    //if yes, copy the path to the string to the 2D array cStrings
    iDepth--;                                            //go back up a level
    cPath[iDepth] = '\0';
        return;
    }
    else                                                //
    {
        iDepth++;                                        //otherwise go down a level
        cPath[iDepth] = '0';                            //append 0 before taking the left path
        BuildStrings(r->LChild);                        //calls the left child
        cPath[iDepth] = '\0';
 
        iDepth++;                                        //
        cPath[iDepth] = '1';                            //append 1 before taking the right path
        BuildStrings(r->RChild);                        //calls the right child
        cPath[iDepth] = '\0';
    }
    iDepth--;
    return;                                                //return to the main function
}
 
 
/*Main program*/
int main()
{
    iDepth = 0;                                            // tells us what level of the tree we're currently in
    for (int i=0; i<=255; i++)    cPath[i]='\0';            //initializing cPath to nulls
    for (int i=0; i<=255; i++) for(int j=0; j <= 255; j++)    
        cStrings[i][j]='\0';                            //see above
    float percent[255];                                    //array to hold the percentage frequency of each xter
 
    total = CountChars(filename);                        //calls CountChars which counts the number of xters and their weight
 
    printf("\nThe Total is: %d\n", total);                //Prints the total no of characters read
    printf("\n N    Frequency   Percentage\n");
    printf(" ---  ---------   ----------\n");
 
    for(int x= 0; x < 255;x++)                            //loop to print out all the characters
    {
        percent[x] = (iCharCount[x]* 100.0)/total ;        //computes the frequency percentage of each character
        if(iCharCount[x]){                                //if xter is non-zero, print it
        //printf("\n%3d  %8d   %8.3f",x,iCharCount[x],percent[x]);    //prints the frequency of each array index
        }
    }
 
    BuildTree();                                        //calls the funtion to build trees    
    BuildStrings(root);
    //traverse(root);    
    printf("\n\nThe huffman code for the characters is as follows:\n");
 
    for(int f= 0; f <= 255; f++)
    {
        printf("\n%3i    %4i", f, cStrings[(((int) f) & 0xff)]);
    }
    return 0;    
}
 

I'd appreciate your assistance.