mirror of https://github.com/torvalds/linux.git
17 lines
615 B
Rust
17 lines
615 B
Rust
// SPDX-License-Identifier: GPL-2.0
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/// Converts a null-terminated byte slice to a string, or `None` if the array does not
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/// contains any null byte or contains invalid characters.
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///
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/// Contrary to [`kernel::str::CStr::from_bytes_with_nul`], the null byte can be anywhere in the
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/// slice, and not only in the last position.
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pub(crate) fn str_from_null_terminated(bytes: &[u8]) -> Option<&str> {
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use kernel::str::CStr;
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bytes
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.iter()
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.position(|&b| b == 0)
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.and_then(|null_pos| CStr::from_bytes_with_nul(&bytes[..=null_pos]).ok())
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.and_then(|cstr| cstr.to_str().ok())
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}
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