1 files changed, 39 insertions, 0 deletions
diff --git a/vendor/sysinfo/src/apple/utils.rs b/vendor/sysinfo/src/apple/utils.rs
new file mode 100644
index 000000000..019295b95
--- /dev/null
+++ b/vendor/sysinfo/src/apple/utils.rs
@@ -0,0 +1,39 @@
+// 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()
+}