/* argv_copy: copy the argvv struct to a new new argvv_copy.     */
void argv_copy(char ***argvv, char ****argvv_copy)
{
    char ***aux;
    char **argv;
    int argc, argvc;

    for (argvc = 0; (argv = argvv[argvc]); argvc++);
    if (argvc == 0)
        return;
    aux = (char ***)malloc(argvc*sizeof(char**)+1);

    for (argvc = 0; (argv = argvv[argvc]); argvc++) 
    {
        for (argc = 0; argv[argc]; argc++);
        aux[argvc] = (char **)malloc(argc*sizeof(char*)+1);
    }

    for (argvc = 0; (argv = argvv[argvc]); argvc++) 
    {
        for (argc = 0; argv[argc]; argc++)
        {
            aux[argvc][argc] = NULL;
            if (argv[argc]){
                aux[argvc][argc] = (char *)malloc(strlen(argv[argc])+1); 
                strcpy(aux[argvc][argc],argv[argc]);
            }
        }
        aux[argvc][argc] = NULL;
    }

    aux[argvc] = NULL;

    *argvv_copy = aux;

    /*****************  Testing **************
     for (argvc = 0; (argv = aux[argvc]); argvc++) 
     {
     for (argc = 0; argv[argc]; argc++)
     {
     printf("copy: [%d][%d] -> %s (%p)\n",argvc,argc,argv[argc],argv[argc]);
     }
     printf("argvv[%d][%d] -> NULL\n",argvc,argc);
     printf("\n");
     }
     printf("argvv[%d] -> NULL\n",argvc);
     ******************************************/
}

/* argv_free: free the resources used by argvv. */
void argv_free(char ****argvv_copy)
{

    char **argv;
    int argc,argvc;
    char ***argvv = *argvv_copy;
     
    for (argvc = 0; (argv = argvv[argvc]); argvc++) 
    {
        for (argc = 0; argv[argc]; argc++)
        {
            free(argv[argc]);
        }
        free(argvv[argvc]);
    }

    free(argvv);
    *argvv_copy = NULL;
}

/* files_copy: copy the filev struct to a new new filev_copy. . */
void files_copy(char *filev[3], char *filev_copy[3])
{
    int i; 
    for (i=0;i<3;i++){
        filev_copy[i] = NULL;
        if (filev[i]){
            filev_copy[i] = (char *)malloc(strlen(filev[i])+1); 
            strcpy(filev_copy[i],filev[i]);
        }
    }
}

/* files_free: free the resources used by filev. */
void files_free(char *filev_copy[3])
{
    int i; 
    for (i=0;i<3;i++){
        if (filev_copy[i]){
            free(filev_copy[i]);
        }
    }
}