fix: ignore interface with no link address (#78)

LeoBorai · Jul 26, 2022 · a213322 · a213322
1 parent 4c24d8d
commit a213322
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/linux.rs b/src/linux.rs
@@ -146,6 +146,13 @@ pub fn list_afinet_netifas() -> Result<Vec<(String, IpAddr)>, Error> {
         while !(**ifa).ifa_next.is_null() {
             let ifa_addr = (**ifa).ifa_addr;
 
+            // If a tun device is present, no link address is assigned to it and `ifa_addr` is null.
+            // See https://github.com/EstebanBorai/local-ip-address/issues/24
+            if ifa_addr.is_null() {
+                *ifa = (**ifa).ifa_next;
+                continue;
+            }
+
             match (*ifa_addr).sa_family as i32 {
                 // AF_INET IPv4 protocol implementation
                 AF_INET => {