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cksum: code improvements for cksum --raw --algorithm

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This commit is contained in:
D9nni 2024-01-10 15:15:23 +02:00
parent c7b15ddce9
commit 911df1d76c
1 changed files with 11 additions and 17 deletions
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28
src/uu/cksum/src/cksum.rs
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@ -176,27 +176,21 @@ where
.map_err_context(|| "failed to read input".to_string())?;
if options.raw {
match options.algo_name {
ALGORITHM_OPTIONS_CRC
| ALGORITHM_OPTIONS_SYSV
| ALGORITHM_OPTIONS_BSD => {
let bytes = match options.algo_name {
ALGORITHM_OPTIONS_CRC => {
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..])?;
bytes.to_vec()
}
_ =>{
ALGORITHM_OPTIONS_SYSV | ALGORITHM_OPTIONS_BSD => {
let bytes = sum.parse::<u16>().unwrap().to_be_bytes();
bytes.to_vec()
}
_ => {
let bytes = decode(sum).unwrap();
stdout().write_all(&bytes)?;
bytes
}
}
};
stdout().write_all(&bytes)?;
return Ok(());
}
// The BSD checksum output is 5 digit integer