cksum: fixed cksum --raw --algorithm

src/uu/cksum/src/cksum.rs

@@ -176,16 +176,27 @@ where
             .map_err_context(|| "failed to read input".to_string())?;
 
         if options.raw {
-            match decode(sum.clone()) {
-                Ok(bytes) => {
-                    stdout().write_all(&bytes)?;
-                }
-                Err(_) => {
-                    //bsd, sysv and crc have output generated without encode()
+            match options.algo_name  {
+                ALGORITHM_OPTIONS_CRC 
+                | ALGORITHM_OPTIONS_SYSV
+                | ALGORITHM_OPTIONS_BSD => {
                     let bytes = sum.parse::<u32>().unwrap().to_be_bytes();
+                    let mut first_nonzero = 0;
+                    for byte in bytes {
+                        if byte != 0 {
+                            break;
+                        }
+                        first_nonzero += 1;
+                    }
+                    stdout().write_all(&bytes[first_nonzero..])?;
+                }
+                _ =>{
+                    let bytes = decode(sum).unwrap();
                     stdout().write_all(&bytes)?;
                 }
+
             }
+
             return Ok(());
         }
         // The BSD checksum output is 5 digit integer

tests/fixtures/cksum/raw/blake2b_single_file.expected

@@ -1 +1 @@
-�����`�x��
f��W���Et�B��l��W^J�0�aX´��8�����5�B��9m��
+— ‘‰å`Ãxœÿ
f†øWÑûþEtÞBãÀl«¹W^Jö0šaX´ÓÀ8Á´�‚‹5�BÍÀ9m•Ã