pub unsafe extern "C" fn SSL_CTX_set_alpn_select_cb__fixed_rust( ssl: *mut SSL_CTX, cb: Option<unsafe extern "C" fn(ssl: *mut SSL, out: *mut *const c_uchar, outlen: *mut c_uchar, inbuf: *const c_uchar, inlen: c_uint, arg: *mut c_void) -> c_int>, arg: *mut c_void)