1 files changed, 15 insertions, 17 deletions

diff --git a/src/ip.rs b/src/ip.rs
index 068d38b..b49a2a0 100644
--- a/src/ip.rs
+++ b/src/ip.rs
@@ -29,7 +29,7 @@ pub fn parse_bsd_ipv4(s: &str) -> Result<Ipv4Addr, String> {
     let parts: Vec<&str> = s.split('.').collect();
     let n = parts.len();
 
-    if n < 1 || n > 4 {
+    if !(1..=4).contains(&n) {
         return Err("invalid number of parts".into());
     }
 
@@ -41,33 +41,31 @@ pub fn parse_bsd_ipv4(s: &str) -> Result<Ipv4Addr, String> {
 
     let addr: u32 = match n {
         4 => {
-            if parsed_parts[0] > 0xFF || parsed_parts[1] > 0xFF || 
-               parsed_parts[2] > 0xFF || parsed_parts[3] > 0xFF {
+            if parsed_parts[0] > 0xFF
+                || parsed_parts[1] > 0xFF
+                || parsed_parts[2] > 0xFF
+                || parsed_parts[3] > 0xFF
+            {
                 return Err("invalid IP part out of range".into());
             }
-            (parsed_parts[0] << 24) | 
-                   (parsed_parts[1] << 16) | 
-                   (parsed_parts[2] << 8) | 
-                   parsed_parts[3]
+            (parsed_parts[0] << 24)
+                | (parsed_parts[1] << 16)
+                | (parsed_parts[2] << 8)
+                | parsed_parts[3]
         }
         3 => {
             if parsed_parts[0] > 0xFF || parsed_parts[1] > 0xFF || parsed_parts[2] > 0xFFFF {
                 return Err("invalid IP part out of range".into());
             }
-            (parsed_parts[0] << 24) | 
-                   (parsed_parts[1] << 16) | 
-                   parsed_parts[2]
+            (parsed_parts[0] << 24) | (parsed_parts[1] << 16) | parsed_parts[2]
         }
         2 => {
             if parsed_parts[0] > 0xFF || parsed_parts[1] > 0xFFFFFF {
                 return Err("invalid IP part out of range".into());
             }
-            (parsed_parts[0] << 24) | 
-                   parsed_parts[1]
-        }
-        1 => {
-            parsed_parts[0]
+            (parsed_parts[0] << 24) | parsed_parts[1]
         }
+        1 => parsed_parts[0],
         _ => {
             return Err("invalid number of parts".into());
         }
@@ -81,11 +79,11 @@ pub fn parse_ip(s: &str) -> Result<IpAddr, String> {
     if let Ok(ip) = s.parse::<Ipv6Addr>() {
         return Ok(IpAddr::V6(ip));
     }
-    
+
     // Try to parse as BSD valid IPv4
     if let Ok(ipv4) = parse_bsd_ipv4(s) {
         return Ok(IpAddr::V4(ipv4));
     }
-    
+
     Err(format!("invalid IP address: {}", s))
 }