Function asdf_parser_set_input_fp 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn asdf_parser_set_input_fp(
    parser: *mut AsdfParser,
    fp: *mut c_void,
    filename: *const c_char,
) -> c_int

Read an already-open stream. Returns 0 on success.

The whole stream is read up front, so fp may be closed once this returns. filename is optional and is used only in messages.

Safety

fp must be a FILE * open for reading, positioned where the ASDF file begins.