fix: Invalid Samba NetBIOS hostname (#1961)

src/samba.sh

@@ -24,8 +24,7 @@ configureNetwork() {
     hostname="$UPLINK"
     interfaces="$DEV"
 
-    return 0
-  fi
+  else
 
     hostname="host.lan"
 
@@ -39,6 +38,13 @@ configureNetwork() {
       interfaces+=",$SAMBA_INTERFACE"
     fi
 
+  fi
+
+  netbios="${hostname%%.*}"
+  netbios="${netbios:0:15}"
+
+  [ -z "$netbios" ] && netbios="host"
+
   return 0
 }
 
@@ -145,7 +151,7 @@ writeConfig() {
   if ! {
     echo "[global]"
     echo "    server string = Dockur"
-    echo "    netbios name = $hostname"
+    echo "    netbios name = $netbios"
     echo "    workgroup = WORKGROUP"
     echo "    interfaces = $interfaces"
     echo "    bind interfaces only = yes"