pub type pem_password_cb = Option<unsafe extern "C" fn(buf: *mut c_char, size: c_int, rwflag: c_int, userdata: *mut c_void) -> c_int>;Aliased Type§
enum pem_password_cb {
None,
Some(unsafe extern "C" fn(*mut i8, i32, i32, *mut c_void) -> i32),
}