Add csc subcommand for Black Sheep TSCs

bff-cli/src/csc.rs

@@ -0,0 +1,18 @@
+use std::io;
+use std::io::{BufWriter, Read, Write};
+
+use bff::BufReader;
+
+use crate::error::BffCliResult;
+
+pub fn csc() -> BffCliResult<()> {
+    let stdin = BufReader::new(io::stdin().lock());
+    let mut stdout = BufWriter::new(io::stdout().lock());
+
+    for byte in stdin.bytes() {
+        let byte = byte?;
+        stdout.write_all(&[!byte])?;
+    }
+
+    Ok(())
+}

bff-cli/src/main.rs

@@ -11,6 +11,7 @@ use crate::lz::LzAlgorithm;
 
 mod crc32;
 mod crc64;
+mod csc;
 mod error;
 mod extract;
 mod info;
@@ -111,6 +112,7 @@ enum Commands {
         #[arg(short = 'a', long = "algorithm", default_value_t = LzAlgorithm::Lzrs)]
         algorithm: LzAlgorithm,
     },
+    Csc {},
 }
 
 #[derive(Parser)]
@@ -163,5 +165,6 @@ fn main() -> BffCliResult<()> {
             character_set,
         ),
         Commands::RoundTrip { bigfile } => round_trip::round_trip(bigfile),
+        Commands::Csc {} => csc::csc(),
     }
 }