cksum: Back -a blake3

Author: oech3

src/uucore/src/lib/features/checksum/mod.rs

@@ -86,7 +86,7 @@ pub enum AlgoKind {
     Sha384,
     Sha512,
 
-    // Not available in cksum
+    // Extension
     Shake128,
     Shake256,
     Blake3,
@@ -114,6 +114,11 @@ impl AlgoKind {
             ALGORITHM_OPTIONS_SHA256 => Sha256,
             ALGORITHM_OPTIONS_SHA384 => Sha384,
             ALGORITHM_OPTIONS_SHA512 => Sha512,
+
+            // Extension
+            ALGORITHM_OPTIONS_BLAKE3 => Blake3,
+            ALGORITHM_OPTIONS_SHAKE128 => Shake128,
+            ALGORITHM_OPTIONS_SHAKE256 => Shake256,
             _ => return Err(ChecksumError::UnknownAlgorithm(algo.as_ref().to_string()).into()),
         })
     }