Fixed reversing of hex to bin

Cargo.lock

@@ -87,6 +87,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "io-lifetimes"
 version = "1.0.3"
@@ -204,6 +210,7 @@ name = "rhd"
 version = "0.1.0"
 dependencies = [
  "clap",
+ "hex",
  "termion",
 ]
 

Cargo.toml

@@ -8,4 +8,5 @@ edition = "2018"
 
 [dependencies]
 clap = { version = "4.0.29", features = ["derive"] }
+hex = "0.4.3"
 termion = "2.0.1"

src/main.rs

@@ -1,11 +1,14 @@
 use std::fs::File;
 use std::io;
+use std::io::BufReader;
 use std::usize::MAX;
 
 mod colormap;
 
 mod tohex;
 use tohex::hexdump;
+mod tobin;
+use tobin::revert_hexdump;
 
 use clap::Parser;
 
@@ -16,6 +19,10 @@ struct Arguments {
     #[arg(short, long)]
     length: Option<usize>,
 
+    /// Revert hexdump to binary
+    #[arg(short, long)]
+    revert: bool,
+
     /// Filename to read, if left out read from stdin
     filename: Option<String>,
 }
@@ -26,18 +33,27 @@ pub fn isatty() -> bool {
 
 fn main() {
     let args = Arguments::parse();
-
-    let reader: Box<dyn io::Read> = if args.filename.is_none() {
-        Box::new(io::stdin())
-    } else {
-        let filename = args.filename.unwrap();
-        Box::new(File::open(filename).expect("Could not open file."))
-    };
-
     let length = if args.length.is_some() {
         args.length.unwrap()
     } else {
         MAX
     };
-    hexdump(reader, length);
+
+    if !args.revert {
+        let reader: Box<dyn io::Read> = if args.filename.is_none() {
+            Box::new(io::stdin())
+        } else {
+            let filename = args.filename.unwrap();
+            Box::new(File::open(filename).expect("Could not open file."))
+        };
+        hexdump(reader, length);
+    } else {
+        let reader: Box<dyn io::BufRead> = if args.filename.is_none() {
+            Box::new(io::stdin().lock())
+        } else {
+            let filename = args.filename.unwrap();
+            Box::new(BufReader::new(File::open(filename).expect("Could not open file.")))
+        };
+        revert_hexdump(reader);
+    }
 }