Better logging in case of errors and new checks

Cargo.lock

@@ -124,15 +124,15 @@ checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "rustix"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c71e83d6afe7ff64890ec6b71d6a69bb8a610ab78ce364b3352876bb4c801266"
+checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8"
 dependencies = [
  "bitflags",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -143,7 +143,7 @@ checksum = "24188a676b6ae68c3b2cb3a01be17fbf7240ce009799bb56d5b1409051e78fde"
 
 [[package]]
 name = "steam-ticket-generator"
-version = "1.1.0"
+version = "1.2.0"
 dependencies = [
  "base64",
  "dialoguer",
@@ -153,7 +153,7 @@ dependencies = [
 [[package]]
 name = "steamworks-sys"
 version = "0.12.0"
-source = "git+https://github.com/Noxime/steamworks-rs#d9ab145702f246019ad59658615547513a9558ee"
+source = "git+https://github.com/Noxime/steamworks-rs#bf8738b4ac640b176e3c5117a87bf82ae7817298"
 
 [[package]]
 name = "syn"

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "steam-ticket-generator"
 authors = ["NotAndreh"]
-version = "1.1.0"
+version = "1.2.0"
 edition = "2024"
 
 [dependencies]

src/main.rs

@@ -1,7 +1,8 @@
-use std::{io::{Read, Write}, time::Duration};
+use std::{error::Error, io::{Read, Write}, time::Duration};
 
 use base64::{prelude::BASE64_STANDARD, Engine as _};
 use dialoguer::theme::ColorfulTheme;
+use steamworks_sys::ESteamAPIInitResult;
 
 fn main() {
     let app_id = dialoguer::Input::<u32>::with_theme(&ColorfulTheme::default())
@@ -9,13 +10,34 @@ fn main() {
         .interact()
         .unwrap();
 
+    if let Err(e) = generate_ticket(app_id) {
+        eprintln!("Error while generating ticket: {}", e);
+        eprintln!("Make sure you have the Steam client running and logged in. Check also that the account owns the game");
+        return;
+    }
+
+    println!("Press Enter to exit...");
+    std::io::stdin().read(&mut [0]).unwrap();
+}
+
+fn generate_ticket(app_id: u32) -> Result<(), Box<dyn Error>> {
     unsafe {
         std::env::set_var("SteamAppId", &app_id.to_string());
         std::env::set_var("SteamGameId", app_id.to_string());
 
-        steamworks_sys::SteamAPI_InitFlat(std::ptr::null_mut());
+        let init_result = steamworks_sys::SteamAPI_InitFlat(std::ptr::null_mut());
         steamworks_sys::SteamAPI_ManualDispatch_Init();
 
+        match init_result {
+            ESteamAPIInitResult::k_ESteamAPIInitResult_FailedGeneric => {
+                return Err("Failed to initialize Steam API".into());
+            },
+            ESteamAPIInitResult::k_ESteamAPIInitResult_NoSteamClient => {
+                return Err("Steam client is not running".into());
+            }
+            _ => {}
+        }
+
         let user = steamworks_sys::SteamAPI_SteamUser_v023();
 
         steamworks_sys::SteamAPI_ISteamUser_RequestEncryptedAppTicket(user, std::ptr::null_mut(), 0);
@@ -31,7 +53,7 @@ fn main() {
             let success = steamworks_sys::SteamAPI_ISteamUser_GetEncryptedAppTicket(user, ticket.as_mut_ptr() as *mut _, 2048, &mut ticket_len);
             
             if !success {
-                panic!("Failed to get encrypted app ticket");
+                return Err("Failed to get encrypted app ticket, does the account own the game?".into());
             }
 
             ticket.truncate(ticket_len as usize);
@@ -56,9 +78,8 @@ fn main() {
             }
         }
     }
-
-    println!("Press Enter to exit...");
-    std::io::stdin().read(&mut [0]).unwrap();
+    
+    Ok(())
 }
 
 fn run_callbacks(pipe: i32) -> Option<u64> {