chore: replace atty by std::io::IsTerminal

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rsacracker"
-version = "0.6.8"
+version = "0.6.9"
 edition = "2021"
 authors = ["skyf0l <[email protected]>"]
 description = "Powerful RSA cracker for CTFs. Supports RSA, X509, OPENSSH in PEM and DER formats."
@@ -54,7 +54,6 @@ indicatif = "0.17"
 itertools = "0.13"
 discrete-logarithm = "1.0"
 base64 = "0.22"
-atty = "0.2.14"
 
 [dependencies.rug]
 version = "1"

src/main.rs

@@ -8,7 +8,7 @@ use rug::{
     Integer,
 };
 use std::{
-    io::{self, Read},
+    io::{self, IsTerminal, Read},
     sync::Arc,
     time::Duration,
 };
@@ -175,10 +175,11 @@ fn main() -> Result<(), MainError> {
     };
 
     // Parse raw
-    let mut params = if !atty::is(atty::Stream::Stdin) {
+    let mut stdin = io::stdin();
+    let mut params = if !stdin.is_terminal() {
         // Piped input
         let mut raw = String::new();
-        io::stdin().read_to_string(&mut raw)?;
+        stdin.read_to_string(&mut raw)?;
         Parameters::from_raw(&raw)
     } else if let Some(raw) = args.raw.as_ref() {
         // rsacracker --raw