1 // SPDX-License-Identifier: GPL-2.0 2 3 /// Converts a null-terminated byte slice to a string, or `None` if the array does not 4 /// contains any null byte or contains invalid characters. 5 /// 6 /// Contrary to [`kernel::str::CStr::from_bytes_with_nul`], the null byte can be anywhere in the 7 /// slice, and not only in the last position. 8 pub(crate) fn str_from_null_terminated(bytes: &[u8]) -> Option<&str> { 9 use kernel::str::CStr; 10 11 bytes 12 .iter() 13 .position(|&b| b == 0) 14 .and_then(|null_pos| CStr::from_bytes_with_nul(&bytes[..=null_pos]).ok()) 15 .and_then(|cstr| cstr.to_str().ok()) 16 } 17