Function tabbyssl::libcrypto::bio::tabby_BIO_append_filename

#[no_mangle]pub extern "C" fn tabby_BIO_append_filename(
    bio_ptr: *mut TABBY_BIO<'_>, 
    filename_ptr: *const c_char
) -> c_int

BIO_append_filename() sets the file BIO b to use file name for appending.

#include <tabbyssl/openssl/bio.h>

BIO *BIO_append_filename(const char *filename);