pub unsafe extern "C" fn asnprintf(
arg1: *mut c_char,
arg2: *mut usize,
arg3: *const c_char,
...
) -> *mut c_charpub unsafe extern "C" fn asnprintf(
arg1: *mut c_char,
arg2: *mut usize,
arg3: *const c_char,
...
) -> *mut c_char