Function vmeta_session_date_write 

pub unsafe extern "C" fn vmeta_session_date_write(
    str_: *mut c_char,
    len: usize,
    date: time_t,
    gmtoff: c_long,
) -> isize

Write a date string. The str string must have been previously allocated. The function writes up to len chars. @param str: pointer to the string to write to (output) @param len: maximum length of the string @param date: date in seconds since the Epoch @param gmtoff: GMT offset in seconds increasing eastbound @return the length of the string written on success, negative errno value in case of error