Completed implementation of FromString for IpAddr

src/ip.rs

@@ -1,57 +0,0 @@
-//use std::str::FromStr;
-
-/// Ip address enum that includes associated type
-/// 
-/// # Example
-/// ```
-/// //Loopback Addresses:
-/// IpAddr::V4(127, 0, 0, 1)
-/// IpAddr::V6(String::from("::1"))
-/// ```
-#[allow(unused)]
-pub enum IpAddr {
-    V4(u8, u8, u8, u8),
-    V6(String)
-}
-
-impl ToString for IpAddr {
-    /// Function that returns an IP address in string form
-    fn to_string(&self) -> String {
-        match self {
-            IpAddr::V4(oct1, oct2, oct3, oct4) => format!("{}.{}.{}.{}", oct1, oct2, oct3, oct4),
-            IpAddr::V6(addr) => format!("{}", addr)
-        }
-    }
-}
-
-// impl FromStr for IpAddr {
-//     /// Function that generates a IpAddr / Err from a string
-//     fn from_str(s: &str) -> Result<Self, Self::Err> {
-//         //Awating implementation
-//     }
-// }
-
-/// Function that takes in an IP address and then prints a formatted string to the CLI
-/// 
-/// # Example
-/// ```
-/// let ip = IpAddr::V4(127, 0, 0, 1);
-/// 
-/// print_ip(ip);
-/// //Output: IP Address: 127.0.0.1
-/// ```
-pub fn print_ip(ip_address: IpAddr) {
-    println!("IP Address: {}", ip_address.to_string())
-}
-
-mod tests {
-    #[test]
-    /// Tests if an IP is converted to a string 
-    /// correctly using the to_string trait
-    fn ip_to_string() {
-        use super::*;
-
-        let ip = IpAddr::V4(192, 168, 0, 1);
-        assert_eq!(ip.to_string(), "192.168.0.1")
-    }
-}

src/main.rs

@@ -1,6 +1,5 @@
-mod network;
-mod ip;
+mod networking;
 
 fn main() {
-    println!("Hello, world!");
+    println!("Hello, World!")
 }

src/network.rs

@@ -1,12 +0,0 @@
-use crate::ip::IpAddr;
-
-pub struct Network {
-    network_address: IpAddr,
-    broadcast_addr: IpAddr,
-    subnet_mask: Option<IpAddr>
-}
-
-impl Network {
-    // pub fn generate_subnets(self) -> Vec<Network> {}
-    // fn get_net_id(self) -> u8 {}
-}

src/networking/ip.rs

@@ -0,0 +1,94 @@
+use std::str::FromStr;
+
+/// Ip address enum that includes associated type
+/// 
+/// # Example
+/// ```
+/// //Loopback Addresses:
+/// IpAddr::V4(127, 0, 0, 1)
+/// IpAddr::V6(String::from("::1"))
+/// ```
+#[allow(unused)]
+#[derive(Debug, PartialEq, Eq)]
+pub enum IpAddr {
+    V4(u8, u8, u8, u8),
+    V6(String)
+}
+
+#[derive(Debug)]
+pub struct InvalidIPErr;
+
+impl ToString for IpAddr {
+    /// Function that returns an IP address in string form
+    fn to_string(&self) -> String {
+        match self {
+            IpAddr::V4(oct1, oct2, oct3, oct4) => format!("{}.{}.{}.{}", oct1, oct2, oct3, oct4),
+            IpAddr::V6(addr) => format!("{}", addr)
+        }
+    }
+}
+
+
+impl FromStr for IpAddr {
+    type Err = InvalidIPErr;
+    /// Function that generates a IpAddr / Err from a string
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let split_ip = s.split('.');
+        if split_ip.clone().count() != 4 {
+            //Invalid IP address entered
+            return Err(InvalidIPErr)
+        }
+        let mut ip: [u8; 4] = Default::default();
+        //Go through each octet and ensure it can be parsed;
+        for (i, oct) in split_ip.into_iter().enumerate() {
+            match oct.parse::<u8>() {
+                Ok(parsed_oct) => ip[i] = parsed_oct,
+                Err(_) => return Err(InvalidIPErr)
+            }
+        }
+        Ok(IpAddr::V4(ip[0],ip[1],ip[2],ip[3]))
+    }
+}
+
+/// Function that takes in an IP address and then prints a formatted string to the CLI
+/// 
+/// # Example
+/// ```
+/// let ip = IpAddr::V4(127, 0, 0, 1);
+/// 
+/// print_ip(ip);
+/// //Output: IP Address: 127.0.0.1
+/// ```
+#[allow(unused)]
+pub fn print_ip(ip_address: IpAddr) {
+    println!("IP Address: {}", ip_address.to_string())
+}
+
+mod tests {
+    #[test]
+    /// Tests if an IP is converted to a string 
+    /// correctly using the ToString trait
+    fn ip_to_string() {
+        use super::*;
+
+        let ip = IpAddr::V4(192, 168, 0, 1);
+        assert_eq!(ip.to_string(), "192.168.0.1")
+    }
+
+    #[test]
+    /// Tests if an IP is converted from a string
+    /// correctly using the FromString trait
+    fn string_to_ip() {
+        use super::*;
+        let ip = "127.0.0.1";
+        assert_eq!(IpAddr::from_str(ip).unwrap(), IpAddr::V4(127, 0, 0, 1))
+    }
+
+    #[test]
+    #[should_panic]
+    fn invalid_string_to_ip() {
+        use super::*;
+        let ip = "Hello, world";
+        IpAddr::from_str(ip).unwrap();
+    }
+}

src/networking/mod.rs

@@ -0,0 +1,14 @@
+mod ip;
+use ip::IpAddr;
+
+#[allow(unused)]
+pub struct Network {
+    network_address: IpAddr,
+    broadcast_addr: IpAddr,
+    subnet_mask: Option<IpAddr>
+}
+
+impl Network {
+//     pub fn generate_subnets(self) -> Vec<Network> {}
+//     fn get_net_id(self) -> u8 {}
+}