use libc::c_char;
pub fn cstr_to_rust(c: *const c_char) -> Option<String> {
cstr_to_rust_with_size(c, None)
}
pub 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;
loop {
let value = unsafe { *c.offset(i) } as u8;
if value == 0 {
break;
}
s.push(value);
i += 1;
}
String::from_utf8(s).ok()
}