Implement secure_getenv.

sunfishcode · Oct 4, 2023 · 59a9ef2 · 59a9ef2
1 parent 5c69b85
commit 59a9ef2
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/c-scape/src/env/mod.rs b/c-scape/src/env/mod.rs
@@ -17,6 +17,20 @@ unsafe extern "C" fn getenv(key: *const c_char) -> *mut c_char {
     _getenv(key_bytes)
 }
 
+#[no_mangle]
+unsafe extern "C" fn secure_getenv(key: *const c_char) -> *mut c_char {
+    //libc!(libc::secure_getenv(key));
+
+    if rustix::runtime::linux_secure() {
+        return null_mut();
+    }
+
+    let key = CStr::from_ptr(key.cast());
+    let key_bytes = key.to_bytes();
+
+    _getenv(key_bytes)
+}
+
 pub(crate) unsafe fn _getenv(key_bytes: &[u8]) -> *mut c_char {
     let mut ptr = environ;
     loop {