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// Take a look at the license at the top of the repository in the LICENSE file.
use libc::c_char;
pub(crate) fn cstr_to_rust(c: *const c_char) -> Option<String> {
cstr_to_rust_with_size(c, None)
}
pub(crate) fn cstr_to_rust_with_size(c: *const c_char, size: Option<usize>) -> Option<String> {
if c.is_null() {
return None;
}
let mut s = match size {
Some(len) => Vec::with_capacity(len),
None => Vec::new(),
};
let mut i = 0;
unsafe {
loop {
let value = *c.offset(i) as u8;
if value == 0 {
break;
}
s.push(value);
i += 1;
}
String::from_utf8(s).ok()
}
}
#[cfg(target_os = "macos")]
pub(crate) fn vec_to_rust(buf: Vec<i8>) -> Option<String> {
String::from_utf8(
buf.into_iter()
.flat_map(|b| if b > 0 { Some(b as u8) } else { None })
.collect(),
)
.ok()
}
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