From 020e964b1303ff272bbd76b36739b5882a6bb676 Mon Sep 17 00:00:00 2001
From: DragonSlayer_14 <dragonslayer14@murena.io>
Date: Mon, 18 Aug 2025 15:11:47 +0200
Subject: [PATCH] =?UTF-8?q?Feat:=20F=C3=BCgt=20Funktionen=20hinzu,=20um=20?=
 =?UTF-8?q?zu=20testen,=20ob=20eine=20Adresse=20erreichbar=20ist.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main.rs          | 21 ++++++++++-
 src/network/mod.rs   |  4 +-
 src/network/utils.rs | 89 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 110 insertions(+), 4 deletions(-)
 create mode 100644 src/network/utils.rs

diff --git a/src/main.rs b/src/main.rs
index 24c3fef..41515e2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,6 +4,7 @@ use std::time::Duration;
 use crate::log::LogLevel;
 use crate::log::log;
 use crate::network::network_interface::{get_active_network_interface, get_interface_ip_address};
+use crate::network::utils::{get_network_address, is_reachable};
 
 mod log;
 mod network;
@@ -29,12 +30,28 @@ fn main() {
         count = count+1;
         sleep(Duration::from_secs(1));
     }
-
     log("main", &*format!("Active network interface found: {}", network_interface), LogLevel::Info);
 
     let interface_address = get_interface_ip_address(network_interface.as_str()).unwrap().trim().to_string();
-
     log("main", &*format!("Interface address: {}", interface_address), LogLevel::Info);
 
+    let network_address = get_network_address(interface_address.as_str()).unwrap().trim().to_string();
+    log("main", &*format!("Network address: {}", network_address), LogLevel::Info);
+
+    count = 0;
+    loop {
+        if is_reachable(network_address.as_str()) {
+            break;
+        } else if count >= 10 {
+            log("main", "Couldn't reach network address, exiting.", LogLevel::Error);
+            exit(1);
+        }
+
+        log("main", "Network address not reachable, waiting 1 second.", LogLevel::Warn);
+        count = count+1;
+        sleep(Duration::from_secs(1));
+    }
+    log("main", "Network address is reachable.", LogLevel::Info);
+
     log("main", "========== PROGRAMM END ==========", LogLevel::Info);
 }
diff --git a/src/network/mod.rs b/src/network/mod.rs
index 74704a5..401a650 100644
--- a/src/network/mod.rs
+++ b/src/network/mod.rs
@@ -1,2 +1,2 @@
-pub mod network_card;
-pub mod network_interface;
\ No newline at end of file
+pub mod network_interface;
+pub mod utils;
\ No newline at end of file
diff --git a/src/network/utils.rs b/src/network/utils.rs
new file mode 100644
index 0000000..2f8b9de
--- /dev/null
+++ b/src/network/utils.rs
@@ -0,0 +1,89 @@
+use std::process::Command;
+use std::net::Ipv4Addr;
+use crate::log;
+use crate::log::LogLevel;
+
+/// Prüft, ob eine angegebene IP-Adresse oder URL erreichbar ist
+///
+/// # Parameter
+/// - `address`: Eine IP-Adresse oder vollständige HTTPS-URL
+///
+/// # Rückgabe
+/// - `bool`: True wenn die Adresse erreichbar ist, False wenn nicht
+pub fn is_reachable(address: &str) -> bool {
+    let addr = &*if let Some(parts) = address.split('/').nth(0) {
+        if let Ok(ip) = parts.parse::<Ipv4Addr>() {
+            let next_ip = Ipv4Addr::from(u32::from(ip) + 1);
+            next_ip.to_string()
+        } else {
+            address.to_string()
+        }
+    } else {
+        address.to_string()
+    };
+
+    #[cfg(target_os = "linux")]
+    {
+        let output = Command::new("ping")
+            .args(["-c", "1", "-W", "2", addr])
+            .output();
+
+        if let Ok(out) = output {
+            out.status.success()
+        } else {
+            log::log("network_utils", &*format!("Couldn't reach address {}!", addr), LogLevel::Error);
+            false
+        }
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+        let output = Command::new("ping")
+            .args(["-n", "1", "-w", "2000", addr])
+            .output();
+
+        if let Ok(out) = output {
+            out.status.success()
+        } else {
+            log::log("network_utils", &*format!("Couldn't reach address {}!", addr), LogLevel::Error);
+            false
+        }
+    }
+
+    #[cfg(not(any(target_os = "linux", target_os = "windows")))]
+    {
+        log::log("network_utils", "OS not supported.", LogLevel::Error);
+        false
+    }
+}
+
+/// Berechnet die Netzwerkadresse aus einer IP-Adresse mit Subnetzmaske
+///
+/// # Parameter
+/// - `address`: Eine IPv4-Adresse mit Subnetzmaske im Format "xxx.xxx.xxx.xxx/yy"
+///
+/// # Rückgabe
+/// - Option<String>: Die Netzwerkadresse im gleichen Format oder None bei ungültiger Eingabe
+pub fn get_network_address(address: &str) -> Option<String> {
+    let parts: Vec<&str> = address.split('/').collect();
+    if parts.len() != 2 {
+        return None;
+    }
+
+    if let Ok(ip) = parts[0].parse::<Ipv4Addr>() {
+        if let Ok(mask) = parts[1].parse::<u8>() {
+            if mask > 32 {
+                return None;
+            }
+
+            let ip_bits: u32 = u32::from(ip);
+            let mask_bits: u32 = !0u32 << (32 - mask);
+            let network = Ipv4Addr::from(ip_bits & mask_bits);
+
+            return Some(format!("{}/{}", network, mask));
+        }
+    }
+
+    None
+}
+