char **GridFill(char **grid,int **coordinates,char *message, int *key, int keyCount, int gridSide)
{
    //keyCount - длина ключа
    int i,c,row,col,count,shift;
    char temp[gridSide],temp2[gridSide],buffer[1];

    count = 0;  //количество поворотов решетки

    while (count < 4) {
        for (i = 0; i < keyCount; i++) {
            row = coordinates[i][(key[i])];
            col = coordinates[i][(key[i] + 1)]; //исправить кодирование символов, скорее всего ошибка в индексе столбцов
            if (col != 0) {
                for (c = 0;c < gridSide;c++) {
                    temp[c] = '\0';
                }
                strncpy(temp, grid[row], col);
                StringCopy(grid[row], temp2, gridSide);
                strncpy(buffer, message, 1);
                strncat(temp, buffer, 1);
                shift = gridSide - (gridSide - col) + 1;
                if (col != (gridSide - 1)) {
                    while (shift > 0) {
                        for (c = 0; c < gridSide; c++) {
                            temp2[c] = temp2[c + 1];
                        }
                        --shift;
                    }
                    strncat(temp, temp2, (gridSide - strlen(temp)));
                }
                strcpy(grid[row], temp);

            } else {
                grid[row][col] = message[0];
            }

            for (c = 0;c < keyCount * 4;c++) {
                message[c] = message[c + 1];
            }
            message[c + 1] = '\0';
        }
        for (i = 0;i < keyCount;i++) {
            if (key[i] != 6) {
                key[i] = key[i] + 2;
            } else {
                key[i] = 0;
            }
        }
        count++;
    }
    //if (message != NULL) {
    //    free(message);
        message = NULL;
    //}
    return grid;
}