rust: Use tor_util::strings utils for protover_get_supported_protocols.

1 files changed, 1 insertions, 13 deletions

diff --git a/src/rust/protover/ffi.rs b/src/rust/protover/ffi.rs
index 2ee0286ecf..404b158388 100644
--- a/src/rust/protover/ffi.rs
+++ b/src/rust/protover/ffi.rs
@@ -15,7 +15,6 @@ use tor_allocate::allocate_and_copy_string;
 use tor_util::strings::byte_slice_is_c_like;
 use tor_util::strings::empty_static_cstr;
 
-
 /// Translate C enums to Rust Proto enums, using the integer value of the C
 /// enum to map to its associated Rust enum
 ///
@@ -143,18 +142,7 @@ pub extern "C" fn protocol_list_supports_protocol_or_later(
 pub extern "C" fn protover_get_supported_protocols() -> *const c_char {
     let supported: &'static CStr;
 
-    // If we're going to pass it to C, there cannot be any intermediate NUL
-    // bytes.  An assert is okay here, since changing the const byte slice
-    // in protover.rs to contain a NUL byte somewhere in the middle would be a
-    // programming error.
-    assert!(byte_slice_is_c_like(SUPPORTED_PROTOCOLS));
-
-    // It's okay to unwrap the result of this function because
-    // we can see that the bytes we're passing into it 1) are valid UTF-8,
-    // 2) have no intermediate NUL bytes, and 3) are terminated with a NUL
-    // byte.
-    supported = CStr::from_bytes_with_nul(SUPPORTED_PROTOCOLS).unwrap();
-
+    supported = get_supported_protocols_cstr();
     supported.as_ptr()
 }