Fix for possible crash when getting info for some TMDs

src/bin/rustii/info.rs

@@ -26,12 +26,11 @@ fn print_tmd_info(tmd: tmd::TMD, cert: Option<cert::Certificate>) {
     } else {
         println!("  Title ID: {}", hex::encode(tmd.title_id).to_uppercase());
     }
-    if hex::encode(tmd.title_id)[..8].eq("00000001") {
+    let converted_ver = versions::dec_to_standard(tmd.title_version, &hex::encode(tmd.title_id), Some(tmd.is_vwii != 0));
     if hex::encode(tmd.title_id).eq("0000000100000001") {
         println!("  Title Version: {} (boot2v{})", tmd.title_version, tmd.title_version);
-        } else {
-            println!("  Title Version: {} ({})", tmd.title_version, versions::dec_to_standard(tmd.title_version, &hex::encode(tmd.title_id), Some(tmd.is_vwii != 0)).unwrap());
-        }
+    } else if hex::encode(tmd.title_id)[..8].eq("00000001") && converted_ver.is_some() {
+        println!("  Title Version: {} ({})", tmd.title_version, converted_ver.unwrap());
     } else {
         println!("  Title Version: {}", tmd.title_version);
     }

src/bin/rustii/main.rs

@@ -46,6 +46,9 @@ fn main() {
     match &cli.command {
         Some(Commands::Wad { command }) => {
             match command {
+                Some(wad::Commands::Convert { input, output }) => {
+                    wad::convert_wad(input, output)  
+                },
                 Some(wad::Commands::Pack { input, output}) => {
                     wad::pack_wad(input, output)
                 },

src/bin/rustii/title/wad.rs

@@ -5,7 +5,7 @@
 
 use std::{str, fs};
 use std::path::{Path, PathBuf};
-use clap::Subcommand;
+use clap::{Subcommand, Args};
 use glob::glob;
 use rustii::title::{cert, tmd, ticket, content, wad};
 use rustii::title;
@@ -13,18 +13,40 @@ use rustii::title;
 #[derive(Subcommand)]
 #[command(arg_required_else_help = true)]
 pub enum Commands {
+    /// Re-encrypt a WAD file with a different key
+    Convert {
+        /// The path to the WAD to convert
+        input: String,
+        /// An (optional) WAD name; defaults to <input name>_<new type>.wad
+        #[arg(short, long)]
+        output: Option<String>,
+    },
     /// Pack a directory into a WAD file
     Pack {
+        /// The directory to pack into a WAD
         input: String,
+        /// The name of the packed WAD file
         output: String
     },
     /// Unpack a WAD file into a directory
     Unpack {
+        /// The path to the WAD to unpack
         input: String,
+        /// The directory to extract the WAD to
         output: String
     }
 }
 
+#[derive(Args)]
+#[group(multiple = false, required = true)]
+struct ConvertTargets {
+    
+}
+
+pub fn convert_wad(input: &str, output: &Option<String>) {
+    todo!();
+}
+
 pub fn pack_wad(input: &str, output: &str) {
     let in_path = Path::new(input);
     if !in_path.exists() {